MPLAB IDE Simulator, Editor User`s Guide

MPLAB IDE Simulator, Editor User`s Guide
MPLAB® IDE
SIMULATOR, EDITOR
USER’S GUIDE
 2002 Microchip Technology Inc.
DS51025E
Note the following details of the code protection feature on PICmicro® MCUs.
•
•
•
•
•
•
The PICmicro family meets the specifications contained in the Microchip Data Sheet.
Microchip believes that its family of PICmicro microcontrollers is one of the most secure products of its kind on the market today,
when used in the intended manner and under normal conditions.
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the PICmicro microcontroller in a manner outside the operating specifications contained in the data sheet.
The person doing so may be engaged in theft of intellectual property.
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable”.
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of
our product.
If you have any further questions about this matter, please contact the local sales office nearest to you.
Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical components in life support systems is not authorized except with
express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, KEELOQ,
MPLAB, PIC, PICmicro, PICSTART and PRO MATE are
registered trademarks of Microchip Technology Incorporated
in the U.S.A. and other countries.
FilterLab, microID, MXDEV, MXLAB, PICMASTER, SEEVAL
and The Embedded Control Solutions Company are
registered trademarks of Microchip Technology Incorporated
in the U.S.A.
dsPIC, dsPICDEM.net, ECONOMONITOR, FanSense,
FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP,
ICEPIC, microPort, Migratable Memory, MPASM, MPLIB,
MPLINK, MPSIM, PICC, PICDEM, PICDEM.net, rfPIC, Select
Mode and Total Endurance are trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
Serialized Quick Turn Programming (SQTP) is a service mark
of Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2002, Microchip Technology Incorporated. Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999
and Mountain View, California in March 2002.
The Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals,
non-volatile memory and analog products. In
addition, Microchip’s quality system for the
design and manufacture of development
systems is ISO 9001 certified.
DS51025E - page ii
 2002 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
Table of Contents
Preface
Introduction ................................................................................................ 1
Highlights ................................................................................................... 1
About This Guide ....................................................................................... 1
Warranty Registration ................................................................................ 3
Recommended Reading ............................................................................ 4
The Microchip Internet Web Site ............................................................... 5
Development Systems Customer Notification Service .............................. 6
Customer Support ..................................................................................... 8
 2001 Microchip Technology Inc.
DS51025E-page iii
MPLAB® IDE User’s Guide
Part 1 - Getting Started with MPLAB IDE
Chapter 1. MPLAB IDE Preview
1.1
Introduction .....................................................................................9
1.2
Highlights ........................................................................................9
1.3
What is MPLAB IDE ........................................................................9
1.4
How MPLAB IDE Helps You ...........................................................9
1.5
MPLAB IDE – An Integrated Development Environment (IDE) .....10
1.6
MPLAB IDE Development Tools ...................................................11
Chapter 2. MPLAB IDE Installation
2.1
Introduction ...................................................................................13
2.2
Highlights ......................................................................................13
2.3
Host Computer System Requirements ..........................................13
2.4
Obtaining the Program Files .........................................................13
2.5
Installing MPLAB IDE ....................................................................14
2.6
Uninstalling MPLAB IDE ...............................................................16
Chapter 3. Getting Started with MPLAB IDE – A Tutorial
3.1
Introduction ...................................................................................17
3.2
Highlights ......................................................................................17
3.3
Setting up the Development Mode ................................................18
3.4
Creating a Simple New Project .....................................................19
3.5
Creating a Simple New Source File ..............................................25
3.6
Entering Source Code ...................................................................26
3.7
Assembling the Source File ..........................................................27
3.8
Running Your Program .................................................................28
3.9
Opening Other Windows for Debugging .......................................29
3.10 Using a Watch Window .................................................................29
3.11 Setting a Break Point ....................................................................32
3.12 Summary .......................................................................................32
DS51025E-page iv
 2001 Microchip Technology Inc.
Table of Contents
Chapter 4. Projects Tutorial
4.1
Introduction ................................................................................... 35
4.2
Highlights ...................................................................................... 35
4.3
Overview of Projects ..................................................................... 35
4.4
Making a Project with One MPASM™ Assembler Source File ...... 38
4.5
Compiling a Single MPASM Assembler Source File
Without Creating a Project ............................................................ 45
4.6
Making a Project with Multiple MPASM Assembler
Source Files using MPLINK™ Linker
4.7
49
Making a Project with Other Tools ................................................ 58
Part 2 - Using MPLAB IDE
Chapter 1. MPLAB Editor
1.1
Introduction ................................................................................... 59
1.2
Highlights ...................................................................................... 59
1.3
What is the MPLAB Editor ............................................................ 59
1.4
How MPLAB Editor Helps You ..................................................... 60
1.5
MPLAB Editor Features ................................................................ 60
1.6
MPLAB Editor Functions ............................................................... 61
Chapter 2. Debugging and MPLAB SIM Simulator
2.1
Introduction ................................................................................... 65
2.2
Highlights ...................................................................................... 65
2.3
MPLAB IDE Debugging Functions ................................................ 65
2.4
Real-Time Program Execution ...................................................... 66
2.5
MPLAB SIM Simulator Environment ............................................. 67
2.6
Simulator Considerations .............................................................. 68
2.7
Break and Trace Points ................................................................ 69
2.8
Conditional Break Dialog .............................................................. 75
2.9
Stimulus Functions ....................................................................... 76
 2001 Microchip Technology Inc.
DS51025E-page v
MPLAB® IDE User’s Guide
2.10 12-Bit Core Device Simulator Issues ............................................86
2.11 14-Bit Core Device Simulator Issues ............................................88
2.12 16-Bit Core Device Simulator Issues ............................................93
2.13 Enhanced 16-Bit Core Device Simulator Issues ...........................97
Part 3 - MPLAB IDE Reference
Chapter 1. MPLAB IDE Toolbar and Menu Options
1.1
Introduction .................................................................................101
1.2
Highlights ....................................................................................101
1.3
MPLAB IDE Desktop ...................................................................102
1.4
File Menu ....................................................................................104
1.5
Project Menu ...............................................................................117
1.6
Edit Menu ....................................................................................118
1.7
Debug Menu ................................................................................129
1.8
Programmer Menu ......................................................................149
1.9
Options Menu ..............................................................................152
1.10 Tools Menu .................................................................................185
1.11 Window Menu .............................................................................187
1.12 Help Menu ...................................................................................216
Chapter 2. MPLAB IDE Toolbar and Status Bar Definitions
DS51025E-page vi
2.1
MPLAB IDE Toolbars ..................................................................219
2.2
MPLAB IDE Status Bar ...............................................................222
 2001 Microchip Technology Inc.
Table of Contents
Appendix A. MPLAB IDE Key Mapping Functions
A.1
Introduction ................................................................................. 225
A.2
MPLAB IDE Key Mapping Functions .......................................... 225
Appendix B. MPLAB Editor Default Key Commands
B.1
Introduction ................................................................................. 233
B.2
Highlights .................................................................................... 233
B.3
Function Keys ............................................................................. 233
B.4
Movement Keys .......................................................................... 235
B.5
Control Keys ............................................................................... 237
B.6
Formatting and Editing Keys ....................................................... 238
Appendix C. File Extensions Used by MPLAB IDE
Glossary .................................................................................................................. 241
Introduction ............................................................................................ 241
Highlights ............................................................................................... 241
Terms .................................................................................................... 241
Index ......................................................................................................................... 259
Worldwide Sales and Service .......................................................................... 272
 2001 Microchip Technology Inc.
DS51025E-page vii
MPLAB® IDE User’s Guide
DS51025E-page viii
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
Preface
Introduction
This first chapter contains general information that will be useful to know
before running MPLAB IDE.
Highlights
The information you will garner from this chapter:
• About This Guide
• Warranty Registration
• Recommended Reading
• The Microchip Internet Web Site
• Development Systems Customer Notification Service
• Customer Support
About This Guide
Document Layout
This document describes how to use MPLAB IDE. The manual layout is as
follows:
• Part 1, Chapter 1: MPLAB IDE Preview – An overview of what MPLAB
IDE is and how it works.
• Part 1, Chapter 2: MPLAB IDE Installation – How to install MPLAB
IDE on your computer.
• Part 1, Chapter 3: Getting Started with MPLAB IDE – A Tutorial –
How to begin using MPLAB IDE.
• Part 1, Chapter 4: MPLAB IDE Projects Tutorial – A tutorial on how
to use MPLAB IDE projects.
• Part 2, Chapter 1: MPLAB Editor – A discussion of the basic MPLAB
Editor functions and features.
• Part 2, Chapter 2: Debugging and MPLAB SIM Simulator – A discussion of MPLAB IDE debugging functions and related MPLAB SIM
simulator considerations.
• Part 3, Chapter 1: MPLAB IDE Menu and Toolbar Options – A
description of the options available via the MPLAB IDE menus and toolbars. This chapter includes all menu options associated with the
MPLAB Editor.
 2001 Microchip Technology Inc.
DS51025E-page 1
MPLAB® IDE User’s Guide
• Part 3, Chapter 2: MPLAB IDE Toolbar and Status Bar Definitions –
Identifies each MPLAB IDE Toolbar button and its function, and discusses how to interpret the information displayed on the MPLAB IDE
Status Bar.
• Appendix A: MPLAB IDE Key Mapping Functions – Lists the available MPLAB IDE key mapping functions.
• Appendix B: MPLAB Editor Default Key Commands – Describes the
default key commands specific to the MPLAB Editor and lists the equivalent menu command (if any).
• Appendix C: File Extensions Used by MPLAB IDE – Lists the types
of files that MPLAB IDE uses and identifies each file type’s default
extension.
• Glossary – A glossary of terms used in this guide.
• Index – Cross-reference listing of terms, features and sections of this
document.
• Worldwide Sales and Service – A listing of Microchip sales and service locations and telephone numbers worldwide.
Conventions Used in this Guide
This manual uses the following documentation conventions:
Table: Documentation Conventions
Description
Represents
Examples
Code (Courier font):
DS51025E-page 2
Plain characters
Sample code
Filenames and paths
#define START
c:\autoexec.bat
Angle brackets:
< >
Variables
<label>, <exp>
Square brackets [ ]
Optional arguments
MPASMWIN
[main.asm]
Curly brackets and
pipe character: { | }
Choice of mutually exclusive
arguments
An OR selection
errorlevel {0|1}
Lower case
characters in
quotes
Type of data
“filename”
Ellipses...
Used to imply (but not show)
additional text that is not relevant to the example
list
[“list_option...
, “list_option”]
0xnnn
A hexadecimal number where
n is a hexadecimal digit
0xFFFF, 0x007A
 2001 Microchip Technology Inc.
Preface
Table: Documentation Conventions (Continued)
Description
Represents
Examples
Italic characters
A variable argument; it can be
either a type of data (in lower
case characters) or a specific
example (in uppercase
characters).
char isascii
(char, ch);
Interface (Helvetica font):
Underlined, italic
text with right arrow
A menu selection from the
menu bar
File > Save
Bold characters
A window or dialog button to
click
OK, Cancel
Characters in angle
brackets < >
A key on the keyboard
<Tab>, <Ctrl-C>
Documents (Helvetica font):
Italic characters
Referenced books
MPLAB IDE User’s
Guide
Documentation Updates
All documentation becomes dated, and this user’s guide is no exception.
Since MPLAB IDE and other Microchip tools are constantly evolving to meet
customer needs, some MPLAB IDE dialogs and/or tool descriptions may differ
from those in this document. Please refer to our web site at
http://www.microchip.com to obtain the latest documentation available.
Warranty Registration
Please complete the enclosed Warranty Registration Card and mail it
promptly. Sending in your Warranty Registration Card entitles you to receive
new product updates. Interim software releases are available at the Microchip
web site.
 2001 Microchip Technology Inc.
DS51025E-page 3
MPLAB® IDE User’s Guide
Recommended Reading
This user’s guide describes how to use MPLAB IDE. The user may also find
the data sheets for specific microcontroller devices informative in developing
firmware.
README.LAB
For the latest information on using MPLAB IDE, read the README.LAB file
(an ASCII text file) on the MPLAB IDE CD-ROM. README.LAB contains
update information that may not be included in the MPLAB IDE User’s Guide.
README.XXX
For the latest information on using other tools, refer to an information file
about the product that is more current than the printed manual. Check the
MPLAB IDE folder for other README files. (In the case of MPASM
assembler, for instance, the file is called README.ASM.)
Microchip Technology Library CD-ROM (DS00161)
This CD-ROM contains comprehensive application notes, data sheets, and
technical briefs for all of Microchip products. To obtain this CD-ROM, contact
the nearest Microchip Sales and Service location (see back page).
Embedded Control Handbook Vol.1 & 2 and the Embedded Control
Update 2000 (DS00092, DS00167, and DS00711)
These handbooks contain a wealth of information about microcontroller
applications. To obtain these documents, contact the nearest Microchip Sales
and Service location (see back page).
The application notes described in these manuals are also obtainable from
Microchip Sales and Service locations or from the Microchip web site
(http://www.microchip.com).
Microsoft Windows® Manuals
This manual assumes that users are familiar with the Microsoft Windows
operating system. Many excellent references exist for this software, and
should be consulted for general operation of Windows.
DS51025E-page 4
 2001 Microchip Technology Inc.
Preface
The Microchip Internet Web Site
Microchip provides on-line support on the Microchip World Wide Web (WWW)
site.
The web site is used by Microchip as a means to make files and information
easily available to customers. To view the site, the user must have access to
the Internet and a web browser, such as Netscape® Communicator or
Microsoft® Internet Explorer®. Files are also available for FTP download from
our FTP site.
Connecting to the Microchip Internet Web Site
The Microchip web site is available by using your favorite Internet browser
to connect to:
www.microchip.com
The file transfer site is available by using an FTP service to connect to:
ftp://ftp.microchip.com
The web site and file transfer site provide a variety of services. Users may
download files for the latest Development Tools, Data Sheets, Application
Notes, User’s Guides, Articles, and Sample Programs. A variety of Microchip
specific business information is also available, including listings of Microchip
sales offices, distributors and factory representatives. Other data available for
consideration includes:
• Latest Microchip Press Releases
• Technical Support Section with Frequently Asked Questions
• Design Tips
• Device Errata
• Job Postings
• Microchip Consultant Program Member Listing
• Links to other useful web sites related to Microchip Products
• Web conferences for products, Development Systems, and technical
information
• Listing of seminars and events
 2001 Microchip Technology Inc.
DS51025E-page 5
MPLAB® IDE User’s Guide
Development Systems Customer Notification Service
Microchip provides a customer notification service to help our customers keep
current on Microchip products with the least amount of effort. Once you
subscribe, you will receive e-mail notification whenever we change, update,
revise or have errata related to that product family or development tool you
have selected.
Click on the Customer Change Notification link on the Microchip web site at
www.microchip.com. From there you may register and select the product
groups and product categories about which you want to receive notifications.
The Development Systems product categories are:
• Compilers
• Emulators
• In Circuit Debuggers
• MPLAB
• Programmers
You may return to this location on the web site at any time to change your
selected product categories or your profile information. You may also review
product change notification documents for all categories that have been
posted.
Compilers
The latest information on Microchip C compilers, Linkers and Assemblers.
These include the MPLAB C17 and MPLAB C18 C Compilers, MPLINK™
Linker, MPASM™ Assembler as well as the Librarian, MPLIB™ for MPLINK
Linker.
Emulators
The latest information on Microchip emulators. These include the MPLAB ICE
2000 in-circuit emulator and PICMASTER® emulator.
In-Circuit Debuggers
The latest information on Microchip in-circuit debuggers, such as the MPLAB
ICD.
DS51025E-page 6
 2001 Microchip Technology Inc.
Preface
MPLAB
The latest information on MPLAB IDE, the Windows Integrated Development
Environment for development systems tools. This list is focused on MPLAB
IDE, MPLAB SIM Simulator, MPLAB IDE Project Manager and general editing
and debugging features. For specific information on MPLAB IDE compilers,
linkers and assemblers, subscribe to the COMPILERS list. For specific
information on MPLAB IDE emulators, subscribe to the EMULATORS list. For
specific information on MPLAB IDE device programmers, please subscribe to
the PROGRAMMERS list.
Programmers
The latest information on Microchip PICmicro® microcontroller (MCU) device
programmers. These include PRO MATE® II and PICSTART® Plus.
 2001 Microchip Technology Inc.
DS51025E-page 7
MPLAB® IDE User’s Guide
Customer Support
Users of Microchip products can receive assistance through several
channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Corporate Applications Engineer (CAE)
• Hotline
Customers should call their distributor, representative, or field application
engineer (FAE) for support. Local sales offices are also available to help
customers. See the back cover for a listing of sales offices and locations.
Corporate applications engineers (CAEs) may be contacted at
(480) 792-7627.
In addition, there is a Systems Information and Upgrade Line. This line
provides system users a listing of the latest versions of all of Microchip's
development systems software products. Plus, this line provides information
on how customers can receive any currently available upgrade kits.
The Hotline Numbers are:
1-800-755-2345 for U.S. and most of Canada, and
1-480-792-7302 for the rest of the world.
DS51025E-page 8
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
1.1
Getting Started
with MPLAB IDE
Chapter 1. MPLAB IDE Preview
Introduction
This chapter will give an overview of MPLAB IDE.
1.2
Highlights
In this chapter, we discuss:
• What is MPLAB IDE
• How MPLAB IDE Helps You
• MPLAB IDE – An Integrated Development Environment (IDE)
• MPLAB IDE Development Tools
1.3
What is MPLAB IDE
MPLAB IDE is a Windows-based Integrated Development Environment
(IDE) for the Microchip Technology Incorporated PICmicro® microcontroller
(MCU) families. MPLAB IDE allows you to write, debug, and optimize
PICmicro MCU applications for firmware product designs. MPLAB IDE
includes a text editor, simulator, and project manager. MPLAB IDE also
supports the MPLAB ICE 2000 emulator, MPLAB ICD debugger, PICSTART®
Plus and PRO MATE® II programmers, and other Microchip or third party
development system tools.
1.4
How MPLAB IDE Helps You
The organization of MPLAB IDE tools by function makes pull-down menus
and customizable quick keys easy to find and use. MPLAB IDE tools allow
you to:
• Assemble, compile, and link source code
• Debug the executable logic by watching program flow with the simulator, or in real-time with the MPLAB ICE 2000 emulator or MPLAB ICD
debugger
• Make timing measurements
• View variables in watch windows
• Program firmware with PICSTART Plus or PRO MATE II programmers
• Find quick answers to questions from the MPLAB IDE on-line Help
and much more.
 2001 Microchip Technology Inc.
Part
DS51025E-page 9
MPLAB® IDE User’s Guide
1.5
MPLAB IDE – An Integrated Development
Environment (IDE)
MPLAB IDE is an easy-to-learn and use Integrated Development
Environment (IDE). The IDE provides firmware development engineers the
flexibility to develop and debug firmware for Microchip’s PICmicro MCU
families. MPLAB IDE runs under Microsoft Windows 3.1x and higher.
MPLAB IDE provides functions that allow you to:
• Create and edit source files
• Group files into projects
• Debug source code
• Debug executable logic using the simulator or emulator(s)
MPLAB IDE allows you to create and edit source code by providing you with a
full-featured text editor.
Further, you can easily debug source code with the aid of a Build Results
window that displays the errors found by the compiler, assembler, and linker
when generating executable files.
A Project Manager allows you to group source files, precompiled object files,
libraries, and linker script files into a project format.
MPLAB IDE also provides feature-rich simulator and emulator environments
to debug the logic of executables. Some of the features are:
• A variety of windows allowing you to view the contents of all data and
program memory locations
• Source Code, Program Memory, and Absolute Listing windows allowing
you to view the source code and its assembly-level equivalent
separately and together (Absolute Listing)
• The ability to step through execution, or apply Break, Trace, Standard,
or Complex Trigger Points
DS51025E-page 10
 2001 Microchip Technology Inc.
MPLAB IDE Preview
Part
MPLAB IDE Development Tools
MPLAB IDE integrates several tools to provide a complete development
environment.
• MPLAB Project Manager
Use the Project Manager to create a project and work with the specific
files related to the project. When using a project, you can rebuild source
code and download it to the simulator or emulator with a single mouse
click.
• MPLAB Editor
Use the MPLAB Editor to create and edit text files such as source files,
code, and linker script files.
• MPLAB ICD In-Circuit Debugger
The MPLAB ICD In-Circuit Debugger is a powerful, low-cost development and evaluation kit for many PICmicro MCU FLASH devices.
• MPLAB SIM Simulator
The software simulator models the instruction execution and I/O of the
PICmicro MCUs.
• MPLAB ICE 2000 In-Circuit Emulator
The MPLAB ICE 2000 emulator uses hardware to provide real-time
emulation of PICmicro MCUs, either with or without a target system.
• MPASM™ Assembler/MPLINK™ Linker/MPLIB™ Librarian
The MPASM assembler allows source code to be assembled without
leaving MPLAB IDE. The MPLINK linker creates the final application by
linking relocatable modules from MPASM, MPLAB C17 and MPLAB C18
C Compilers. The MPLIB librarian manages custom libraries for maximum code reuse.
• MPLAB CXX C Compilers
The MPLAB C17 and MPLAB C18 C Compilers provide ANSI-based
high level source code solutions. Complex projects can use a combination of C and assembly source files to obtain the maximum benefits of
speed and maintainability.
• PRO MATE® II and PICSTART® Plus Programmers
Develop code with the simulator or an emulator, assemble or compile it,
then use one of these tools to program devices. This can all be accomplished with MPLAB IDE. Although the PRO MATE II programmer does
not require MPLAB IDE to operate, programming is easier using MPLAB
IDE.
• PICMASTER® and PICMASTER CE Emulators
MPLAB IDE provides legacy support for the PICMASTER and PICMASTER CE emulators.
 2001 Microchip Technology Inc.
DS51025E-page 11
Getting Started
with MPLAB IDE
1.6
MPLAB® IDE User’s Guide
• Third Party Tools
Many other companies have development tools for Microchip products
that work with MPLAB IDE. Consult the Microchip Third Party Guide
(DS00104).
DS51025E-page 12
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
2.1
Introduction
This chapter describes the procedure for installing MPLAB IDE.
2.2
Highlights
The items discussed in this chapter include:
• Host Computer System Requirements
• Obtaining the Program Files
• Installing MPLAB IDE
• Uninstalling MPLAB IDE
2.3
Host Computer System Requirements
The following minimum configuration is required to run MPLAB IDE:
• PC-compatible Pentium™-class system
• Microsoft Windows 3.1x or higher
• 16 MB memory (32 MB recommended)
• 45 MB of hard disk space
Note:
2.4
Not all hardware components that function under MPLAB IDE,
such as emulators and device programmers, function under all current Windows operating systems. Refer to the user’s guide of the
specific hardware device for details.
Obtaining the Program Files
The MPLAB IDE application is shipped with every Microchip Development
System. Also, MPLAB IDE may be obtained by contacting any Microchip
sales office and requesting the Technical Library CD-ROM or by downloading
the files from the Microchip web site (www.microchip.com).
The number and names of the files vary depending on the version. Version
5.00 of MPLAB IDE, for example, would have these files:
MP50000.EXE
MP50000.W02
MP50000.W03
MP50000.W04
MP50000.W05
MP50000.W06
MP50000.W07
 2001 Microchip Technology Inc.
DS51025E-page 13
Getting Started
with MPLAB IDE
Chapter 2. MPLAB IDE Installation
Part
MPLAB® IDE User’s Guide
2.5
Installing MPLAB IDE
The executable file MPvvvvv.EXE installs the Microchip MPLAB Integrated
Development Environment (IDE), where vvvvv is the version number of
MPLAB IDE.
To install MPLAB IDE, follow these steps:
1. Enter Microsoft Windows.
2. If you are installing from the MPLAB IDE CD-ROM, place the CD-ROM
into the drive now.
3. Execute the installation program:
Windows 3.1: From the File Manager, or from the Program Manager >
Run option, run X:\MPvvvvv.exe, where X is the drive designation of the
install files and vvvvv is the version of MPLAB IDE you are installing. For
example, enter d:\MP50000.exe to install version 5.00 of MPLAB IDE,
where d: is the CD-ROM drive that contains the MPLAB IDE install.
Windows 95/98/ME, WIndows NT®, or Windows 2000: If the CD starts
up automatically, follow the prompts given. Otherwise, click the Start button and select Run. Enter X:\MPvvvvv.exe, where X is the drive designation of the install files and vvvvv is the version of MPLAB IDE you are
installing. For example, enter d:\MP50000.exe to install version 5.00 of
MPLAB IDE, where d: is the CD-ROM drive that contains the MPLAB IDE
install. Then click OK.
Note:
Windows NT and Windows 2000 users must have administrative
privileges in order to install MPLAB IDE.
4. Step through the displayed dialogs where you may customize your
MPLAB IDE installation. If you are unsure about any of the options displayed on the dialogs, simply accept the defaults as shown.
Installation Tips:
Selecting the Components
If you have a limited amount of PC memory and you have not purchased
a device programmer or emulator, you can install just the software tools:
- MPLAB IDE files
- MPASM Assembler/MPLINK Linker/MPLIB Librarian files
- MPLAB SIM Simulator Support Files
- Help Files
You can reinstall MPLAB IDE later to add additional components.
Selecting the Destination Folder
We recommend installing MPLAB IDE on a local hard drive rather than a
network drive.
DS51025E-page 14
 2001 Microchip Technology Inc.
MPLAB IDE Installation
Part
Installing the data link libraries (DLLs) to the \Windows\System folder
may allow better management and prevent a future installation of another
version from overwriting these MPLAB IDE files.
5. Watch as your MPLAB IDE files are installed on your system. View any
displayed screens for new product information.
6. View the readme files. The README files contain valuable information
on new features as well as limitations and known problems.
Note:
If you select No when asked if you want to view the README files,
you may view these files later from the MPLAB install folder. It is
recommended that you consult the README files before contacting technical support.
7. Start MPLAB IDE by executing MPLAB.EXE or clicking on the MPLAB
IDE icon. You will see the MPLAB IDE desktop as shown in Figure 2.1.
Figure 2.1: MPLAB IDE Desktop
 2001 Microchip Technology Inc.
DS51025E-page 15
Getting Started
with MPLAB IDE
Selecting the System Files Folder
MPLAB® IDE User’s Guide
2.6
Uninstalling MPLAB IDE
To uninstall MPLAB IDE, open Windows Explorer (or File Manager for
Windows 3.1) and double-click on unwise32.exe (or unwise.exe if you
are using Windows 3.1) in the MPLAB folder to run it. Based on the log file
created during MPLAB IDE installation, the unwise.exe uninstall program
determines which files to remove from the MPLAB IDE, Windows, and
System folders.
DS51025E-page 16
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
3.1
Introduction
This tutorial is intended to be a quick introduction to the MPLAB IDE user
interface. It should take about 1 to 2 hours to complete the tutorial.
This is not intended to discuss all of the details of MPLAB IDE, only to provide
a beginning understanding so you can use MPLAB IDE right away.
3.2
Highlights
In this tutorial, you will learn about:
•
•
•
•
•
•
•
•
•
•
Setting up the Development Mode
Creating a Simple New Project
Creating a Simple New Source File
Entering Source Code
Assembling the Source File
Running Your Program
Opening Other Windows for Debugging
Creating a Watch Window
Saving the Watch Window
Setting a Break Point
In addition, there is an overview of other features to be discussed in later
chapters.
With the operation of MPLAB IDE provided by this tutorial, you should be able
to:
• Become familiar with the MPLAB IDE Desktop
• Create a new assembly source code file and enter it into a new project
for the PIC16F84
• Identify and correct simple errors
• Run the built-in simulator
• Set break points
• Create Watch windows
• Become familiar with the various debugging windows
 2001 Microchip Technology Inc.
DS51025E-page 17
Getting Started
with MPLAB IDE
Chapter 3. Getting Started with MPLAB IDE – A Tutorial
Part
MPLAB® IDE User’s Guide
3.3
Setting up the Development Mode
The previous chapter discussed how to install MPLAB IDE. Now you will
begin setting up the application.
The MPLAB IDE desktop (Figure 3.1) contains the following major elements:
1. A menu across the top line
2. A toolbar below the menu
3. A workspace in which various files, windows, and dialogs can be
displayed
4. A status bar at the bottom
Notice that the status bar includes information about how the system is
currently configured. We’ll cover some of these features in more detail later.
For now, let’s see how to set the development mode.
1. Menu
2. Toolbar
3. Workspace
4. Status Bar
Figure 3.1: MPLAB IDE Desktop
The development mode sets which tool, if any, will execute code. For this
tutorial we will use MPLAB SIM, the software simulator. Later you may switch
to one of the emulator operations if you have an emulator. Operation will be
similar. “Editor Only” mode does not allow code execution, and is mainly
useful if you have not installed the simulator, do not have an emulator, and
are just creating code to program a PICmicro microcontroller (MCU).
Select the Options > Development Mode menu item and click the Tools tab to
select the development tool and processor for your project.
DS51025E-page 18
 2001 Microchip Technology Inc.
Getting Started with MPLAB IDE – A Tutorial
Part
Getting Started
with MPLAB IDE
Figure 3.2: Development Mode Tools Dialog
MPLAB IDE is a constantly evolving product, so there may be subtle
differences between what you see and the picture here. Select MPLAB SIM
Simulator and choose the PIC16F84 from the pull-down list of available
processors supported by the simulator. Click OK. The simulator will initialize
and you should see “PIC16F84” and “Sim” in the status bar on the bottom of
the MPLAB IDE desktop. You are now in simulator mode for the PIC16F84
device.
3.4
Creating a Simple New Project
The simulator runs from the same file (a HEX file) that can be programmed
into the PICmicro MCU. For the simulator to run you must first create a source
code file and successfully assemble the source code.
The assembler produces, among other things, a HEX file. This file has the file
extension .HEX. In this tutorial the file will be named tutor84.hex. Later
this file can be loaded directly into a device programmer without using the
assembler or an MPLAB IDE project. This file can also be loaded by most
other third party programmers.
Select File > New from the menu and you will see a dialog that looks like
Figure 3.3.
 2001 Microchip Technology Inc.
DS51025E-page 19
MPLAB® IDE User’s Guide
Figure 3.3: Create Project Dialog
Click Yes, and a standard Windows browsing dialog will appear (Figure 3.4).
In this dialog, indicate the location where you want your project stored.
Remember where you put it. You’ll need this information later. This tutorial
uses a folder in c:\Program Files\MPLAB and creates the project file
named tutor84.pjt.
“PJT” is a standard suffix for MPLAB IDE project files. The prefix of the project
file name, in this case tutor84, will become a default prefix for many of the
files that MPLAB IDE will use or create for this tutorial.
Figure 3.4: New Project Dialog
Using the mouse to click OK will bring you to the Edit Project Dialog
(Figure 3.5).
The simulator, programmers, and emulator systems that work with MPLAB
IDE use a HEX file created by assembling, compiling, and/or linking source
code. Several different tools can create HEX files, and these tools are part of
each project. Projects give you flexibility to describe how the application will
be built and which software tools will be used to create the .HEX file. We will
DS51025E-page 20
 2001 Microchip Technology Inc.
Getting Started with MPLAB IDE – A Tutorial
Part
Figure 3.5: Edit Project Dialog – Node Properties Enabled
Notice that the target file name of the Edit Project dialog has been filled in for
you. It uses the development mode that we set previously and defaults to
using the Microchip language tool suite.
In addition, the default language suite, paths, and nodes for all projects are
set by selecting Options > Environment Setup and clicking the Projects tab.
These defaults appear in the Edit Project dialog for all new projects.
In the Project Files window, you will find tutor84.[hex]. Highlighting this
name will cause the Node Properties button to become usable.
Before doing anything else, we must tell MPLAB IDE how to create the HEX
file. Do this by clicking the Node Properties button. The Node Properties
dialog will appear (Figure 3.6).
 2001 Microchip Technology Inc.
DS51025E-page 21
Getting Started
with MPLAB IDE
not get into these details in this tutorial, but as you need these features you
can use the Node Properties to set them. See Chapter 4 for information on
more complex projects.
MPLAB® IDE User’s Guide
Figure 3.6: Node Properties Dialog
This dialog contains all of the default settings for the language tool shown in
the upper right of the dialog (in this case MPASM). In the simplest form, a
project contains a HEX file created from one assembly source file. This is the
default as the Node Properties dialog appears.
You can see that there are a lot of rows and columns on this dialog. Each row
usually corresponds to a “switch” – those things that are often set on the
command line when the tool is invoked. In fact, the setting of these switches is
reflected in the Command Line window near the bottom. This is the actual
command line that will be issued to the MPASM assembler when it is invoked
from MPLAB IDE.
For now you can use the default settings for all other entries, but as you
become more familiar with building an application, you will probably find that
you’ll want to change some of these.
Click OK to apply these defaults, return to the Edit Project dialog and enable
the Add Node button (Figure 3.7).
DS51025E-page 22
 2001 Microchip Technology Inc.
Getting Started with MPLAB IDE – A Tutorial
Part
Getting Started
with MPLAB IDE
Figure 3.7: Edit Project Dialog – Add Node Enabled
Click Add Node. You will see the standard Windows browse dialog
(Figure 3.8), and the working folder will be the same as the project folder.
Enter the file name tutor84.asm and click OK.
Figure 3.8: Add Node Dialog
 2001 Microchip Technology Inc.
DS51025E-page 23
MPLAB® IDE User’s Guide
You will return to the Edit Project dialog and should see tutor84.asm
indented and below the HEX file, indicating that it is a contributing node
(Figure 3.9).
Figure 3.9: Edit Project Dialog – Node Added
Clicking OK takes you back to the MPLAB IDE desktop with an open and
unnamed source code file.
DS51025E-page 24
 2001 Microchip Technology Inc.
Getting Started with MPLAB IDE – A Tutorial
Part
Creating a Simple New Source File
Click once in the blank space of the empty file window that has been created
for you. It is probably titled Untitled. This gives the window focus. Use the File
> Save As menu option and save the empty file as tutor84.asm. When the
standard browse dialog opens, you will find tutor84.asm located in the
current working folder of the project. Enter the file name and click OK.
Figure 3.10: Save Source File
You will now be presented with the MPLAB IDE desktop and the empty file
window, but the name of the file window will reflect its new name.
The name of the source file and the name of the project (tutor84 in this
tutorial) must be the same in this kind of project. If you change the name of
the source file, you must also change the name of the project to match. Other
projects that use the linker allow the output file name to be different from the
input file. Section 4.6 provides a tutorial on creating projects using the linker.
Note:
 2001 Microchip Technology Inc.
For a single source file project, the MPASM assembler creates its
output HEX file with the same name as the source file. The project
name, HEX file, and source file MUST have the same name.
DS51025E-page 25
Getting Started
with MPLAB IDE
3.5
MPLAB® IDE User’s Guide
3.6
Entering Source Code
Use the mouse to locate the cursor at the beginning of the tutor84.asm
empty file window, and enter the following text, exactly as written, on each
line. You don’t have to enter the comments (the text following the
semicolons).
c1
list
p=16f84
include <p16F84.inc>
equ
0x0c
; Set temp variable counter c1 at address 0x0c
org
reset
goto
0x00
; Set program memory base at reset vector 0x00
start
; Go to start of the main program
org
start
movlw
movwf
loop
incfsz
goto
0x04
; Set program memory base to beginning of user code
0x09
c1
; Initialize counter to arbitrary value greater than zero
; Store value in temp variable a defined above
c1,F
loop
; Increment counter, place results in file register
; Loop until counter overflows
bug
; When counter overflows, got to start to re-initialize
goto
end
This code is a very simple program that increments a counter and resets to a
predetermined value when the counter rolls over to zero.
All labels start in the first column, and the last line has an end directive. Refer
to the MPASM User’s Guide with MPLINK and MPLIB (DS33014) for more
information about directives. The PICmicro MCU data sheets contain full
information about instructions along with examples of their use.
Save the file by using the File > Save menu item.
DS51025E-page 26
 2001 Microchip Technology Inc.
Getting Started with MPLAB IDE – A Tutorial
Part
Assembling the Source File
Assembling the file can be accomplished in several ways. The method
described here uses the Project > Build All menu item. This will execute the
MPASM assembler in the background using the defaults saved with the
project as noted before. Once the assembly process is complete, the Build
Results window will appear (Figure 3.11).
Figure 3.11: Build Results Window – Build Failed
You have intentionally entered at least one error if you entered the code as
written in Section 3.6. The last goto in the program references a nonexistent
label called bug. Since this label has not been defined before, the assembler
reports an error. You may have other errors as well.
Using the mouse, double-click on the error message. This will bring the cursor
to the line in the source code that contains the error. Change bug to start.
Use the Build Results window to help find the errors, and repair any other
bugs in your source code. Reassemble by executing the Project > Build All
menu function. This process may take a couple of iterations.
Note:
Whenever you rebuild a project all of your source files will be saved
to disk.
When you’ve fixed all problems in the source code, the Build Results window
will display “Build completed successfully” (Figure 3.12). You now have a
complete project that can be executed using the simulator.
Figure 3.12: Build Results Window – Build Successful
 2001 Microchip Technology Inc.
DS51025E-page 27
Getting Started
with MPLAB IDE
3.7
MPLAB® IDE User’s Guide
3.8
Running Your Program
Use the Debug > Run > Reset to initialize the system. The program counter
will be reset to zero, which is the reset vector on the PIC16F84. The source
code line at this address may be highlighted with a dark bar. Also, you may
notice that PC is set to 0x00 in the status bar at the bottom of MPLAB IDE.
Use the Debug > Run > Step menu item. This causes the program counter to
advance to the next instruction location. The dark bar will follow the source
code and the program counter displayed in the status bar should advance to
“pc:0x04.”
Figure 3.13: Debug > Run > Step Menu Item
You may notice as you execute the Debug > Run > Step menu item that there
is text on the right side of the menu item that says <F7>. This stands for
“function key seven” on your keyboard. Many MPLAB IDE functions are
assigned to shortcut keys. These keys have the same effect as executing the
menu item itself. Press <F7> a few times and watch the program counter and
dark bar advance through the program.
Execute the Debug > Run > Run menu item or press <F9> to start the
program running from the current location counter. The status bar will change
colors indicating the program is executing instructions. None of the other
fields on the status bar will be updated until the program is halted.
Stop the program by executing the Debug > Run > Halt menu item or by
pressing <F5>. The status bar will change back to its original color, and the
current program counter and other status information will be updated.
DS51025E-page 28
 2001 Microchip Technology Inc.
Getting Started with MPLAB IDE – A Tutorial
Part
3.9
Opening Other Windows for Debugging
There are many ways to look at your program and its execution using MPLAB
IDE. For example, this program is intended to increment a temporary counter,
but how do you know for sure that is happening? One way is to open and
inspect the file register window. Do this by executing the Window > File
Registers menu item. A small window with all of the file registers, or RAM, of
the PIC16F84 will appear.
Press <F7> (Execute Single-Step) a few times and watch the values update
in the file register window. We put the counter variable at address location
0x0C. As the temporary counter is incremented, this is reflected in the file
register window. File registers change colors when their value changes so
that they can easily be noticed on inspection. However, in very complex
programs, many values may change, making it difficult to focus on one or two
variables. This problem can be solved by using a Watch window.
3.10 Using a Watch Window
MPLAB IDE allows the contents of file registers to be monitored through a
Watch window.
3.10.1
Creating a Watch Window
To create a Watch window, select Window > Watch Window > New Watch
Window. If you have already created a Watch window and saved it to disk,
select Window > Watch Window > Load Watch Window. Select the Watch
window file to load and click OK, or double-click the desired file.
The Add Watch Symbol dialog will appear (Figure 3.14).
 2001 Microchip Technology Inc.
DS51025E-page 29
Getting Started
with MPLAB IDE
Another way to execute functions is to use the toolbar at the top of the screen.
If you place the cursor over the items in the toolbar, you can see the name of
the function in the status bar at the bottom. The left button is a standard Swap
Toolbar button that allows you to scroll through the available toolbars.
Toolbars can be customized (see Section 1.9.5.1.2). On the debug toolbar,
the green light is equivalent to <F9> (Run) and the red light is the same as
<F5> (Halt).
MPLAB® IDE User’s Guide
Figure 3.14: Add Watch Symbol Dialog
Typing ‘c1’ in the symbol name box will cause the list to scroll to the c1
symbol. Highlight the symbol and click the Add button, then click the Close
button. You will be left with the Watch window on your MPLAB IDE desktop
(Figure 3.15) displaying the current value of the temporary counter value ‘c1.
Figure 3.15: Watch Window
You can display the contents of the Watch window with or without line
numbers. To change this setting, select Toggle Line Numbers from the
system menu inside the Watch window.
Press <F7> to single step the program a few times and notice that as the
counter value is incremented, the display is updated in the Watch window. If
you’ve left the file register window open, it will update as well.
3.10.2
Saving the Watch Window
You can save the Watch window and its settings by selecting Window >
Watch WIndow > Save Active Watch from the MPLAB IDE menu or by
selecting Save Watch from the system menu inside the Watch window. (The
system menu button is located in the upper left-hand corner of the Watch
window. Clicking this button once will cause the menu underneath to cascade
down.) Choose a name and click OK.
DS51025E-page 30
 2001 Microchip Technology Inc.
Getting Started with MPLAB IDE – A Tutorial
Part
Getting Started
with MPLAB IDE
.
Figure 3.16: Save Watch Window Dialog
The window’s open or closed status and location on the screen is saved with
the project so the next time you open your project, your Watch windows will
be restored as well.
3.10.3
Editing the Watch Window
You can also edit the Watch windows after you’ve created them.
Use either the Window > Watch Window submenu or the system menu inside
the Watch window to edit the information in the Watch window.
Add a symbol
to the Watch
window
 2001 Microchip Technology Inc.
Select Window > Watch Window > Add to Active Watch
from the MPLAB IDE menu or select Add Watch from
the system menu inside the Watch window.
Delete a symbol
from the Watch
window
Click on the symbol in the Watch window, then select
Delete Watch from the system menu.
Change the display format of
symbols
Select Window > Watch Window > Edit Active Watch
from the MPLAB IDE menu or select Edit Watch from
the system menu inside the Watch window. Then, click
Properties. The Properties dialog allows you to select
the format, size, byte order, and display bits for display
in the Watch Window.
DS51025E-page 31
MPLAB® IDE User’s Guide
3.11 Setting a Break Point
Press <F5> (Debug > Run > Halt) to make sure that the simulator processor
is halted. Click in the source code window on the line immediately after the
start label that says movlw 0x09. Click the right mouse button and a small
shortcut menu will appear (Figure 3.17).
Figure 3.17: Right Mouse Button Pop-up Menu
Select the Break Point(s) menu item and the menu will disappear and the line
where the cursor was located will change colors, indicating that a break point
has been set at that location.
Press <F6> or execute the Debug > Run > Reset menu item to reset the
system. Then run the system by pressing <F9>. The program will run and
then halt at the instruction just after the break point. ‘c1’, as displayed in either
the Watch window or the file register window (if one is still open), will reflect
the reset status of zero; stepping once will execute the code and ‘c1’ will
reflect a value of 0x09. Press <F9> a few times and notice the status bar
change color while running, and will change again when the processor halts.
Note:
If execution doesn’t halt at the break point, select Options > Development Mode and click the Break Options tab. Make sure that
Global Break Enable is selected (check marked).
3.12 Summary
This tutorial has shown you how to:
•
•
•
•
•
•
Set up a new project
Create and enter a source file into a project
Assemble code
Run your code using the simulator
Set break points and single step your code
Watch variables in your code
Once you are comfortable with the topics introduced here, you should look at
the next section for more information on MPLAB IDE.
DS51025E-page 32
 2001 Microchip Technology Inc.
Getting Started with MPLAB IDE – A Tutorial
Part
Break Points – You can set break points in the Window > Program Memory
window, in the source file window (in this case tutor84.asm), or in the
Window > Absolute Listing window.
Source Files – Use the Window > Project Window to bring up a list of your
source files. You can double-click on the file name here to bring up that file in
the editor.
MPASM Errors – If the MPASM assembler gives you an error, double-click on
that error in the error window to go to the error in the source code. If you’ve
got multiple errors, always choose the first error. Often one error will cause
subsequent errors and fixing the first one may fix them all.
Configuration Bits and Processor Mode – Configuration bits in the source
file will not set the mode of the processor for the simulator or emulators. For
instance, the Watchdog Timer Enable configuration bit can be set so that
when you program a device, the Watchdog Timer (WDT) will be turned on.
You will also need to select Options > Development Mode and click the
Configuration tab to enable the WDT for the simulator or emulator. This
allows you to debug with it on or off without changing your source code. Use
the Options > Development Mode Configuration tab to set the processor
mode as well. Even though you can set these bits in your MPASM assembler
or MPLAB CXX source file, MPLAB IDE does not automatically change
modes.
Options – Go to Options > Environment Setup and click the General tab to
do the following:
•
•
•
•
Change the screen font or font size
Position the toolbar on the side or bottom of the screen
Modify the toolbar
Change the number of characters displayed for labels
Before you close the dialog, click the Key Mappings tab to map European
Keys to MPLAB IDE functions and special ASCII characters.
Map Files – Go to Project > Edit Project dialog and change MPASM’s Node
Properties to produce a MAP file named tutor84.map. After you’ve built the
project, look at tutor84.map to see build information.
Grayed Out Menus – If you find menus “grayed out,” check to make sure that
you haven’t somehow entered the Editor Only mode. If you’re sure everything
is set up correctly, try exiting MPLAB IDE and restarting the program.
 2001 Microchip Technology Inc.
DS51025E-page 33
Getting Started
with MPLAB IDE
Some hints and tips:
MPLAB® IDE User’s Guide
NOTES:
DS51025E-page 34
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
4.1
Introduction
This chapter discusses in detail how to use projects in MPLAB IDE. If you
completed the tutorial in Chapter 3, you may want to skip this chapter for now
and return to it when you are ready to learn more about projects.
The project managers of MPLAB IDE v3.40 and later support multiple files.
Previously established projects from MPLAB IDE v3.31 and earlier will be
converted automatically by newer versions of MPLAB IDE when they are
opened. Once a project is converted, it cannot be reopened using a previous
version of MPLAB IDE.
4.2
Highlights
In chapter you will learn these functions of MPLAB IDE Projects:
• Overview of Projects
• Making a Project with One MPASM Assembler Source File
• Compiling a Single MPASM Assembler Source File Without Creating a
Project
• Making a Project with Multiple MPASM Assembler Source Files using
MPLINK Linker
• Making a Project with Other Tools
To perform these tasks, you will use the following features of MPLAB IDE:
• Install Language Tool
• New Project
• Add Nodes to a Project
• Set Project Node Properties
• Make/Build Project
• Project Window
4.3
Overview of Projects
A Project in MPLAB IDE is the group of files needed to build an application
along with their associations to various build tools. A project is made up of a
project node and one or more source nodes. The source nodes are typically
assembly source files, C source files, precompiled object files, libraries and
linker scripts. Usually the project is placed in the same folder as the main
source files.
 2001 Microchip Technology Inc.
DS51025E-page 35
Getting Started
with MPLAB IDE
Chapter 4. Projects Tutorial
Part
MPLAB® IDE User’s Guide
MPLAB IDE Project
main.c
source
files
prog.asm
MPLAB CXX
MPASM
main.o
prog.o
ASSEMBLER/
COMPILER
object
files
precomp.o
math.lib
device.lkr
LINKER
MPLINK
prog.out
prog.cod
MPLAB SIM
prog.hex
MPLAB ICE
PICMASTER
EMULATOR
library &
linker script
files
prog.lst
prog.map
PRO MATE II
PICSTART Plus
output
files
SIMULATOR/
EMULATORS/
PROGRAMMERS
Figure 4.1: Project Relationships
DS51025E-page 36
 2001 Microchip Technology Inc.
Projects Tutorial
Part
An assembly source file (prog.asm) is shown also with its associated
assembler (MPASM). MPLAB IDE will use this information to generate the
object file prog.o for input into the MPLINK linker. See the MPASM User’s
Guide with MPLINK and MPLIB (DS33014) for more information on using the
assembler.
In addition, precompiled object files (precomp.o) may be included in a
project, with no associated tool required. Types of precompiled object files
that are generally required in a project are:
• Start up code
• Initialization code
• Interrupt service routines
• Register definitions
Precompiled object files are often device and/or memory model dependent.
For more information on available Microchip precompiled object files, see the
MPLAB CXX C Compilers Reference Guide (DS51224).
Some library files (math.lib) are available with the compiler. Others may be
built outside the project using the librarian tool (MPLIB). See the MPASM
User’s Guide with MPLINK and MPLIB (DS33014) for more information on
using the librarian. For more information on available Microchip libraries, see
the MPLAB CXX C Compilers Reference Guide (DS51224).
The object files, along with library files and a linker script file (device.lkr)
are used to generate the project output files via the linker (MPLINK). See the
MPASM User’s Guide with MPLINK and MPLIB (DS33014) for more
information on linker script files and using the linker.
The main output file generated by the MPLINK linker is the HEX file
(prog.hex), used by simulators (MPLAB SIM), emulators (MPLAB ICE 2000
and PICMASTER®) and programmers (PRO MATE II and PICSTART Plus).
The other output files are:
• Code file (.cod) – Debug file used by MPLAB IDE.
• Listing file (.lst) – Original source code, side-by-side with final binary
code.
• Map file (.map) – Shows the memory layout after linking. Indicates
used and unused memory regions.
The tools shown here are all Microchip development tools. However, many
third party tools are available to work with MPLAB IDE Projects. Please refer
to the Third Party Guide (DS00104) for more information.
 2001 Microchip Technology Inc.
DS51025E-page 37
Getting Started
with MPLAB IDE
In this MPLAB IDE Project, the C source file main.c is associated with the
MPLAB CXX compiler. MPLAB IDE will use this information to generate an
object file (main.o) for input into the linker (MPLINK). See the MPLAB CXX C
Compilers User’s Guide (DS51217) for more information on using the
compiler.
MPLAB® IDE User’s Guide
4.4
Making a Project with One MPASM™ Assembler
Source File
To make a project that has only one MPASM assembler source file, or that
uses the previous method of projects (MPLAB IDE v3.31 or earlier), wherein a
single source file would #include other files, follow these steps.
sample.asm
MPASM
sample.hex
source
file
ASSEMBLER
main output
file
Figure 4.2: Project Relationships For One MPASM Assembler
Source File
4.4.1
Set Development Mode
Select the proper development mode for the application. Select Options >
Development Mode and click the Tools tab. For this tutorial, select MPLAB
SIM simulator and select the PIC16F84 PICmicro microcontroller (MCU).
Click OK.
Figure 4.3: Development Mode Dialog
DS51025E-page 38
 2001 Microchip Technology Inc.
Projects Tutorial
Part
New Project
Select Project > New Project, select a folder for the new project, then type in
its name. Use the \Program Files\MPLAB installation folder and name it
SAMPLE.PJT for this tutorial.
Figure 4.4: New Project Dialog – sample.pjt
4.4.3
Project Dialog
After clicking OK, you will see the Edit Project Dialog:
Figure 4.5: Edit Project Dialog
 2001 Microchip Technology Inc.
DS51025E-page 39
Getting Started
with MPLAB IDE
4.4.2
MPLAB® IDE User’s Guide
4.4.4
Set Node Properties
Select the file name, sample.hex, in the Project Files window, then click the
Node Properties button.
Figure 4.6: Node Properties Dialog
The Node Properties dialog shows the command line switches for the tool, in
this case MPASM. When you first open this dialog, the checked boxes
represent the default values for the tool. For this tutorial, these do not need to
be changed. Refer to the MPASM User’s Guide with MPLINK and MPLIB
(DS33014) for more information on these command line switches.
Click OK to return to the Edit Project dialog box.
DS51025E-page 40
 2001 Microchip Technology Inc.
Projects Tutorial
Part
Add Node
Click Add Node from the Edit Project dialog. Use sample.asm for this
tutorial. This is the browse window that pops up when you click Add Node.
Figure 4.7: Add Node Dialog
The MPASM assembler always makes a .HEX file with the same name as the
source .ASM file. The Project Manager will create a sample .hex file when
the project is built.
 2001 Microchip Technology Inc.
DS51025E-page 41
Getting Started
with MPLAB IDE
4.4.5
MPLAB® IDE User’s Guide
The Edit Project dialog should look like this:
Figure 4.8: Edit Project Dialog with Node
In this simple example, no entries were made in the Path boxes. As your
application becomes more complex, you may need to enter the folders of your
include files, libraries, and linker scripts in the appropriate box. The default
language suite, paths, and nodes for all projects are set selecting Options >
Environment Setup and clicking the Projects tab.
Click OK in the Edit Project Dialog.
4.4.6
Make Project
Select Project > Make Project from the menu to compile the application using
the MPASM assembler. A Build Results window is created that shows the
command line sent to the assembler. It should look like this:
Figure 4.9: Build Results Window
DS51025E-page 42
 2001 Microchip Technology Inc.
Projects Tutorial
Part
Troubleshooting
If the build did not complete successfully, check these items:
1. Examine the Build Results window for syntax errors in your source file.
If you find any, double-click on the error in the Build Results window to
go to the line in the source file that contains the error. Correct the error,
then try the build again.
2. Select Project > Edit Project. Select the HEX file node and click Node
Properties. Check to see that the correct build tool (MPASM) is shown
in the Node Properties dialog.
3. Select Project > Edit Project. Check the names of the files listed in the
Project Files list. If you have accidentally added the wrong file, click on
it, click Delete Node, then add the correct node as described in
Section 4.4.5.
4. Select Project > Install Language Tool... and check that the MPASM
assembler is pointed to MPASMWIN.EXE in the MPLAB IDE installation
folder. Also, the “Windowed” option should be selected.
Alternatively, the MPASM assembler can point to MPASM.EXE and the
“Command-line” option selected; however this executable may not operate on Pentium 100MHz PCs and higher.
Figure 4.10: Install Language Tool Dialog
 2001 Microchip Technology Inc.
DS51025E-page 43
Getting Started
with MPLAB IDE
4.4.7
MPLAB® IDE User’s Guide
4.4.8
Project Window
Open the Window > Project window to see that the target name is set properly
to match the Node source name. They will have different file
extensions, .ASM and .HEX, but both are named SAMPLE for this tutorial.
The Project window should look like this:
Figure 4.11: Project Window
4.4.9
Summary
Here is a quick list of the steps to set up a new project as described above:
• Create new project with Project > New Project.
• Set project Node Properties to MPASM and select the desired build
options.
• Add Source file node.
DS51025E-page 44
 2001 Microchip Technology Inc.
Projects Tutorial
Part
Compiling a Single MPASM Assembler Source
File Without Creating a Project
It is possible to compile a single file without opening up a project. The
disadvantage of this method is that although no initial project setup is needed,
you must specify options every time you compile the file. This example will
use the same assembly language file used in the last example.
You must first close any open projects. To do this, select Project > Close
Project.
4.5.1
Set Development Mode
Select the proper development mode for the application. For this tutorial,
select Options > Development Mode and click the Tools tab. Select MPLAB
SIM simulator and select the PIC16F84 PICmicro MCU. Click OK.
Figure 4.12: Development Mode Dialog
 2001 Microchip Technology Inc.
DS51025E-page 45
Getting Started
with MPLAB IDE
4.5
MPLAB® IDE User’s Guide
4.5.2
Open Source File
Open the source file that you wish to assemble. For this tutorial, use
sample.asm from the MPLAB IDE installation folder.
Figure 4.13: Source File Window
4.5.3
Compile Source File
Select Project > Build Node from the menu to compile sample.asm using the
MPASM assembler. MPLAB IDE opens an Invoke Build Tool Dialog that looks
like this:
Figure 4.14: Build Tool Dialog
DS51025E-page 46
 2001 Microchip Technology Inc.
Projects Tutorial
Part
Figure 4.15: Build Results Window
4.5.4
Troubleshooting
If the build did not complete successfully, check these items:
1. If you modified the sample source code, examine the Build Results window for syntax errors in your source file. If you find any, double-click on
the error in the Build Results window to go to the line in the source file
that contains the error. Correct the error, then try the build again.
2. Select Project > Install Language Tool... and check that MPASM assembler is pointed to MPASMWIN.EXE in the MPLAB IDE installation folder.
Also, the “Windowed” option should be selected.
Alternatively, the MPASM assembler can point to MPASM.EXE and the
“Command-line” option selected; however this executable may not operate on Pentium 100MHz PCs and higher.
Figure 4.16: Install Language Tool Dialog
 2001 Microchip Technology Inc.
DS51025E-page 47
Getting Started
with MPLAB IDE
Verify that the MPASM assembler is selected, and set the tool options to
match those shown above. Click OK in the Invoke Build Tool Dialog to start
the build process. A Build Results window is generated that shows the
command line sent to the assembler and the build output. It should look like
this:
MPLAB® IDE User’s Guide
4.5.5
Summary
Here is a quick list of the steps to set up a new project as described above:
• If a project is open, close it using Project > Close Project.
• Open the source file you wish to compile.
• Select Project > Build Node.
• Select the desired language suite, build tool, and build options in the
Invoke Build Tool dialog.
DS51025E-page 48
 2001 Microchip Technology Inc.
Projects Tutorial
Part
Making a Project with Multiple MPASM
Assembler Source Files using MPLINK™ Linker
To use MPLINK linker to link two or more MPASM assembler object files,
follow these steps. If you followed through the previous section, select Project
> Close Project.
example.asm
example2.asm
MPASM
MPASM
example.o
example2.o
source
files
ASSEMBLER
object
files
16f84.lkr
MPLINK
example.hex
linker script
file
LINKER
main output
file
Figure 4.17: Project Relationships For Multiple MPASM Assembler
Source Files
4.6.1
Set Development Mode
Select Options > Development Mode and click the Tools tab. Select MPLAB
SIM simulator and select the PIC16F84 PICmicro MCU for this example. Click
OK.
 2001 Microchip Technology Inc.
DS51025E-page 49
Getting Started
with MPLAB IDE
4.6
MPLAB® IDE User’s Guide
Figure 4.18: Development Mode Dialog
4.6.2
New Project
Select Project > New Project, browse to select a folder for a new project, then
type in its name. Use the \PROGRAM FILES\MPLAB\EXAMPLE folder for this
tutorial and name the file EXAMPLE.PJT.
Figure 4.19: New Project Dialog – example.pjt
DS51025E-page 50
 2001 Microchip Technology Inc.
Projects Tutorial
Part
Set Node Properties
Select the name of the project in the Project Files dialog of the Edit Project
Dialog and click Node Properties to open this dialog. Set the language tool to
MPLINK.
Figure 4.20: Set Node Properties Dialog
The Node Properties dialog shows the command line switches for the tool, in
this case MPLINK. When you first open this dialog, the checked boxes
represent the default values for the tool. For this tutorial, these do not need to
be changed. Refer to the MPASM User’s Guide with MPLINK and MPLIB
(DS33014) for more information on these command line switches.
Click OK to return to the Edit Project Dialog box.
4.6.4
Add First Source File Node
Select Add Node from the Edit Project Dialog. Use example.asm in the
\PROGRAM FILES\MPLAB\EXAMPLE folder for this tutorial.
 2001 Microchip Technology Inc.
DS51025E-page 51
Getting Started
with MPLAB IDE
4.6.3
MPLAB® IDE User’s Guide
Figure 4.21: Add Node Dialog
You may select more than one file at a time from this dialog. To select several
files without selecting the files between them, hold the <Ctrl> key while
selecting each file. To select a range of files hold the <Shift> key and select
the first and last files.
Select example.asm from the list of project files in the Edit Project dialog,
and click Node Properties.
Verify that the language tool is set to MPASM.
Figure 4.22: Node Properties Dialog – Example.o
DS51025E-page 52
 2001 Microchip Technology Inc.
Projects Tutorial
Part
Click OK to return to the Edit Project Dialog box.
4.6.5
Adding Additional Source Files
Follow the previous two steps to add the rest of the source files to the project.
For this tutorial, select example2.asm from the \PROGRAM
FILES\MPLAB\EXAMPLE folder. You can also use Copy Node to enter
subsequent files with the same Node Options as the first source file. Make
sure the Node Options are set properly on each file.
To use the Copy Node feature, select one of the source node files listed in the
Project Files box. Then click Copy Node. In the Add Node dialog box, select
one or more source files. Once the files are selected, click OK. This step will
set up the node properties for this selected files the same as the referenced
node used. This is especially useful for adding multiple source files with
identical node properties.
4.6.6
Select Linker Script
Select a linker script using the Add Node button and the method described
above. A linker script is a file that MPLINK linker uses to define the memory
architecture of each PICmicro MCU. Standard linker scripts come with
MPLINK linker and are in the MPLAB IDE installation folder. For this tutorial
select PIC16F84.LKR from the \PROGRAM FILES\MPLAB\EXAMPLE folder.
Node options can not be set for a linker script.
 2001 Microchip Technology Inc.
DS51025E-page 53
Getting Started
with MPLAB IDE
The Node Properties dialog shows the command line switches for the tool, in
this case the MPASM assembler. Refer to the MPASM User’s Guide with
MPLINK and MPLIB (DS33014) for more information on these command line
switches.
MPLAB® IDE User’s Guide
Figure 4.23: Edit Project Dialog – Linker Script
Click OK in the Edit Project dialog.
In this simple example, no entries were made in the three “Path” boxes. As
your application becomes more complex, you may need to enter the folders of
your include files, library files, and linker script files in the appropriate box if
they are not in the same folder as the project. The default language suite,
paths, and nodes for all projects are set by selecting Options > Environment
Setup and clicking the Projects tab (see Section 1.9.5.2).
DS51025E-page 54
 2001 Microchip Technology Inc.
Projects Tutorial
Part
Make Project
Select Project > Make Project to compile the application using MPASM
assembler and MPLINK linker. A Build Results window is created that shows
the command lines sent to each tool. It should look like this:
Figure 4.24: Build Results Window
 2001 Microchip Technology Inc.
DS51025E-page 55
Getting Started
with MPLAB IDE
4.6.7
MPLAB® IDE User’s Guide
4.6.8
Troubleshooting
If the build did not complete successfully, check these items:
1. If you modified the sample source code, examine the Build Results window for syntax errors in your source file. If you find any, double-click on
the error in the Build Results window to go to the line in the source file
that contains the error. Correct the error, then try the build again.
2. Select Project > Edit Project. Select the HEX file node and click Node
Properties. Check to see that the correct build tool (MPLINK) is shown
in the Node Properties dialog. The build tool for the source files for this
project should be MPASM.
3. Select Project > Edit Project. Check the names of the files listed in the
Project Files list. If you have accidentally added the wrong file, click on
it, click Delete Node, then add the correct node as described in
Section 4.6.5.
4. If MPLAB IDE reports the message, “Time-out,” click OK to continue.
Depending on the speed of your PC and the size of your project, you
may wish to configure the length of time MPLAB IDE will wait before
reporting a timeout message. This value is set by selecting Options >
Environment Setup, clicking the Project tab, and adjusting the Build
Timeout Length in the dialog box. Set the Build Timeout Length to 0 if
you never wish to see a timeout error.
Figure 4.25: Environment Setup Dialog
DS51025E-page 56
 2001 Microchip Technology Inc.
Projects Tutorial
Part
Figure 4.26: Install Language Tool Dialog – MPASM Assembler
4.6.9
Project Window
Open the Window > Project window. It should look like this:
Figure 4.27: Project Window
 2001 Microchip Technology Inc.
DS51025E-page 57
Getting Started
with MPLAB IDE
5. Select Project > Install Language Tool... and check that the MPASM
assembler is pointed to MPASMWIN.EXE in the MPLAB IDE installation
folder. Also, the “Windowed” option should be selected.
Alternatively, the MPASM assembler can point to MPASM.EXE and the
“Command-line” option selected; however, this executable may not
operate on Pentium 100MHz PCs and higher.
MPLAB® IDE User’s Guide
4.6.10
Summary
Here is a quick list of the steps to set up a new project as described above:
• Create new project with Project > New Project.
• Set project Node Properties to MPLINK.
• Add Source file nodes, and set node properties as needed.
• Add Linker Script file node.
4.7
Making a Project with Other Tools
Other tools may be used with MPLAB IDE Projects to build applications.
Microchip makes the MPLAB C17 and MPLAB C18 C compilers for
PIC17CXXX and PIC18CXXX devices, respectively. Contact any Microchip
sales office (see back cover) or our web site (http:\\www.microchip.com) for
information on how to purchase these compilers. Also, see our web site for
tutorials on how to use these compilers with MPLAB IDE.
Certain third party tools also work with MPLAB IDE Projects. Consult the Third
Party Guide (DS00104) for more on these tools. Also, see our web site for
tutorials on how to use these tools with MPLAB IDE.
DS51025E-page 58
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
Chapter 1. MPLAB Editor
1.1
Introduction
This chapter defines what MPLAB Editor is and how it helps you, as well as
introducing the features and functions of the editor. Since the MPLAB Editor is
integrated into MPLAB IDE, its functions are detailed in Part 3, Chapter 1
along with all other MPLAB IDE functions.
Highlights
Using
MPLAB IDE
1.2
The following topics are addressed in this chapter:
• What is the MPLAB Editor
• How MPLAB Editor Helps You
• MPLAB Editor Features
• MPLAB Editor Functions
1.3
What is the MPLAB Editor
The MPLAB Editor is an integrated part of the MPLAB Integrated
Development Environment (IDE). The editor is always available when MPLAB
IDE is running. It is not a separate executable file but a set of features in
MPLAB IDE.
Figure 1.1: Using the MPLAB Editor
 2001 Microchip Technology Inc.
Part
DS51025E-page 59
MPLAB® IDE User’s Guide
1.4
How MPLAB Editor Helps You
The MPLAB IDE and Editor are designed to allow PICmicro microcontroller
developers an easy and quick method to develop and debug firmware for
Microchip Technology Incorporated’s PICmicro microcontroller product
families.
1.5
MPLAB Editor Features
1.5.1
File Size
The MPLAB Editor is limited only by the total amount of available memory on
your system. There are no limits on the number of editable files or on the
number of open edit windows. The MPLAB Editor also has no limit on the size
of file that it can open and has no limit on the number of lines that a file may
contain.
1.5.2
Windows MDI Conventions
MPLAB Editor adheres to the Windows MDI conventions:
• Invokes most commands and facilities from menus
• Moves around with a mouse or with standard keyboard shortcuts
• Supplies cut and paste capabilities from the clipboard
1.5.3
Reconfigure Keyboard
You can reconfigure the keys to meet your requirements. Commands may be
invoked by two-character key sequences like <Esc+G>, <Ctrl+K>, and
<Ctrl+B>. You may also use key sequences such as <Alt+F> and <Alt+S>.
You can map almost all keyboard keys in any combination.
1.5.4
Build Files Easily
MPLAB Editor allows you to:
• Define sets of templates – standard lines of text – that you can insert
into the current file with just a few mouse clicks.
• Group the templates you work with into distinct files.
• Load templates for automatic usage.
DS51025E-page 60
 2001 Microchip Technology Inc.
MPLAB Editor
1.6
MPLAB Editor Functions
The MPLAB Editor provides functions that allow you to perform the following
operations:
• File operations
• Template operations
• Text handling
• Editor window modes
Part
• C language awareness
File Operations
To create a file, select a file for editing, and save a file, use the File menu
options (see Section 1.4). The MPLAB Editor allows you to save the file by
overwriting the existing file or by saving the file to a new filename.
1.6.2
Template Operations
How do you take the repetition (and the waste) out of creating new source
code files? You could simply paste the necessary code and text into your new
source files by copying it from your previously completed source files.
However, that can be an error-prone process.
MPLAB IDE provides you with templates, which are pre-built text files or
sections of text that you can insert in your source files. By inserting these
“canned” sections of text instead of repetitively typing it into new source files,
you reduce your initial code development time. You can use the absolute code
templates included in the Templates folder inside the MPLAB IDE folder or
create your own.
Once you set up MPLAB IDE to use your templates, you can create your new
source file (or open an existing one), insert the template text into the new
source file, and search for the special markers that help you quickly locate the
areas that you will need to customize during your application development.
You can repeat the above steps to create several different .tpl files if you wish.
For example, you may want to a separate .tpl file for each type of application
or for each device.
 2001 Microchip Technology Inc.
DS51025E-page 61
Using
MPLAB IDE
1.6.1
MPLAB® IDE User’s Guide
1.6.3
Text Processing
Although MPLAB Editor is intended to be used as a program text editor, it has
several features that make it useful in general text editing. Refer to
Section 1.6 for details.
1.6.3.1
Inserting, Selecting, and Deleting Text
MPLAB Editor inserts text in either insert or strikeover mode. MPLAB Editor
shows the mode as either “INS” or “OVR” on the status bar.
Text selection features allow you to select a character, word, or an entire line.
You can delete a character, entire line, or delete from the cursor position to
the end of the line. You can also use the MPLAB Editor’s built-in find and
replace feature to search for and replace text or special characters.
1.6.3.2
Indenting and Unindenting Text
When editing program source, indenting and unindenting source is very
common. The MPLAB Editor provides a facility to change the indentation level
of one or more lines of text.
1.6.3.3
Changing Case
The MPLAB Editor allows you to change the case of selected text between
uppercase and lowercase.
1.6.3.4
Handling Braces
MPLAB Editor allows the user to manipulate brace characters such as
brackets and parentheses, which often delimit sections of text or program
sources.
1.6.3.5
Undoing Edit Actions
The MPLAB Editor records edit actions and can reverse them with the Undo
command.
1.6.3.6
Automatic Text Wrapping
When typing ordinary text, it may be convenient to have the program fit the
text into the available line width. This would typically not be the case when
editing a program source code file.
To change the text wrapping mode, double-click the left mouse button in the
wrap area of the status bar. This area shows the text “No Wrap” when
wrapping is not active. The double-click action turns wrapping on. For
example, the status bar shows “Wr 72” when wrapping is enabled and set at
column 72.
DS51025E-page 62
 2001 Microchip Technology Inc.
MPLAB Editor
The points at which MPLAB Editor wraps a line vary with the language type
defined for the window.
1.6.3.6.1. Language type “(none)” or “C”
MPLAB Editor breaks the line at the closest white space character or hyphen
to the defined wrap column.
1.6.3.6.2. Language type “TeXt”
MPLAB Editor breaks the line at the closest white space character to the
defined wrap column.
Note:
Edit Window Modes
The MPLAB Editor associates a set of window modes with every edit window.
The possible window modes affect the screen formatting, text display and
input, printing, and file modes. See Part 3, Section 1.9.3 and Section 1.9.4 for
more information on Editor Modes.
1.6.5
C Language Awareness
When editing files that have language type set to “C,” MPLAB Editor provides
these facilities:
• MPLAB Editor always moves a “#” character typed in an otherwise
empty line to column 1.
• MPLAB Editor moves a closing “}” brace typed in an otherwise empty
line to the same column as the matching preceding opening brace “{” if
the opening brace is the only character in its line.
For example:
//
**********************************************
// EXAMPLE.C
//
*********************************************
#include <PIC16C84.H>
void delay(void);
void main(void)
{
unsigned int i,j;
TRISB = 0xff;
PORTB = 0;
i = 0x1;
 2001 Microchip Technology Inc.
DS51025E-page 63
Using
MPLAB IDE
1.6.4
MPLAB Editor wraps the line being typed only when the cursor is
at the end of the line. If you move the cursor to somewhere within
the line and enter text, MPLAB Editor does not wrap the line even
if it extends past the wrap column.
Part
MPLAB® IDE User’s Guide
while(1)
{
PORTB = i;
if (i == 0x80)
i = 0x1;
else
i <<= 1;
TRISB = 0;
delay();
TRISB = 0xff;
delay();
}
}
void delay(void)
{
int x, y;
x = 0x3f;
y = 0xff;
while(x--)
{
while(y--)
NOP();
}
}
DS51025E-page 64
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
Chapter 2. Debugging and MPLAB SIM Simulator
2.1
Introduction
This chapter discusses MPLAB IDE debugging functions and related MPLAB
SIM simulator considerations. You can be in the simulator (MPLAB SIM) or in
emulator mode (MPLAB ICE 2000 in-circuit emulator, PICMASTER®
emulator, ICEPIC, or MPLAB ICD) to access debugging functions. Refer to
the MPLAB ICE In-Circuit Emulator User’s Guide (DS51159) for information
on debugging using the MPLAB ICE 2000 emulator.
Using
MPLAB IDE
2.2
Highlights
This chapter covers the following information:
• MPLAB IDE Debugging Functions
• Real-Time Program Execution
• MPLAB SIM Simulator Environment
• Simulator Considerations
• Break and Trace Points
• Conditional Break Dialog
• Stimulus Functions
• Simulator Issues:
-
2.3
12-Bit Core Device
14-Bit Core Device
16-Bit Core Device
Enhanced 16-Bit Core Device
MPLAB IDE Debugging Functions
After setting up and compiling projects in MPLAB IDE, you'll want to see how
your code runs. If you have a device programmer, you can program a
microcontroller device and plug the programmed device into your application
to verify that the application runs as expected. Usually, an application will not
run correctly the first time, and you'll have to debug the code. You can use
MPLAB SIM simulator to simulate your code or you can use the MPLAB ICE
2000 emulator to run your firmware in the application while you debug.
Either way, you will use break and trace points as you run your code. Look at
register values in the Register window or Special Function Register window to
see the processor's state as you run and single-step your code.
 2001 Microchip Technology Inc.
Part
DS51025E-page 65
MPLAB® IDE User’s Guide
The MPLAB ICE 2000 emulator runs code at the actual execution speed
(real-time) on your target hardware, stopping only at specified break points.
MPLAB SIM simulates the execution of any PICmicro microcontroller (MCU)
and simulates I/O conditions at speeds that depend on the speed of your PC.
The following debug functions work the same with the simulator or the
emulator. The main functions are:
• Emulation Memory (Program Memory Window)
• Break and Trace Points
• Single-Stepping
• Register Monitoring (Special Function Register or File Register
Windows)
All of these functions use information from an MPLAB IDE project. Line labels
in source code, symbolic locations in memory, and function names from code
can be used to set break and trace points and to examine and modify
registers.
2.4
Real-Time Program Execution
In this document the term “real-time” is usually applicable only to the
emulators (ICEs) or in-circuit debuggers (ICDs).
2.4.1
Execution in MPLAB SIM Simulator Mode
When the system is said to be running in real-time in the simulator mode,
instructions are executing as quickly as possible by the PC’s CPU. This is
usually slower than the actual PICmicro MCU would run at its rated clock
speed.
The speed at which the simulator runs depends on the speed of your
computer and the number of other tasks running in the background. The
software simulator must update all of the simulated registers and RAM,
monitor I/O, set and clear flags, check for break and trace points in software,
and simulate the PICmicro MCU instruction with instructions being executed
on your computer's CPU.
Note:
Often loops are used in code to generate timing delays. When
using the simulator, you might wish to decrease these time delays
or conditionally remove those sections of your code with “IFDEF”
statements to increase simulation speed.
In general when this manual says “real-time” and you are in the simulator
mode, this means that the software simulation is executing simulated
PICmicro MCU code as fast as your PC can simulate the instructions.
DS51025E-page 66
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.4.2
Animate Mode
Animate Mode is a method of automatically single-stepping the processor.
The simulator actually executes single steps while in Run mode, but it only
updates the values of the registers when it is halted. To view the changing
registers in the Special Function Register window or the Watch windows, use
Animate mode. Animate mode runs slower than the Run function, but allows
you to view changing register values.
2.5
MPLAB SIM Simulator Environment
Part
• Model operation of Microchip Technology's PICmicro MCU, e.g.,
PIC12CXXX, PIC14000, PIC16C5X, PIC16CXXX, PIC17CXXX, and
PIC18CXXX.
• Assist users in debugging software that uses Microchip PICmicro MCU
devices.
A discrete-event simulator, as opposed to an in-circuit emulator (like MPLAB
ICE 2000) is designed to debug software. MPLAB SIM simulator allows you to
modify object code and immediately reexecute, inject external stimuli to the
simulated processor, and trace the execution of the object code. A simulator
differs from an in-circuit emulator in three important areas:
• I/O timing
• Execution speed
• Cost
2.5.1
I/O Timing
External timing in MPLAB SIM simulator is processed only once during each
instruction cycle. Transient signals, such as a spikes on MCLR smaller than an
instruction cycle, will not be simulated but may be caught by an in-circuit
emulator.
Note:
2.5.2
Stimulus is injected into MPLAB SIM simulator prior to the next
instruction cycle.
Execution Speed
The execution speed of a discrete-event software simulator is orders of
magnitude less than a hardware oriented solution. Users may view slower
execution speed as a handicap or as a tool. MPLAB SIM simulator attempts to
provide the fastest possible simulation cycle, and depending upon the mode
of operation, can operate on the order of milliseconds per instruction.
 2001 Microchip Technology Inc.
DS51025E-page 67
Using
MPLAB IDE
MPLAB SIM simulator is a discrete-event simulator for the PICmicro MCU
families and is integrated into MPLAB IDE. The MPLAB SIM simulator tool is
designed to:
MPLAB® IDE User’s Guide
2.5.3
Cost
Microchip Technology has developed the MPLAB SIM simulator to be the
most cost-effective tool for debugging application firmware. The MPLAB SIM
simulator does not require any external hardware to your PC, and in most
respects operates exactly the same as the MPLAB ICE 2000 emulator.
Unless you need to debug your application in real-time on your actual
hardware, the MPLAB SIM simulator can usually be used to find and correct
most coding errors.
2.5.4
Debugging Tool
The MPLAB SIM simulator is particularly suitable for optimizing algorithms.
Unlike some emulators, the simulator makes many internal registers visible
and can provide software tools that are difficult or expensive to implement in a
hardware in-circuit emulator. For the most part, the MPLAB SIM simulator can
be used to fully debug your system unless you run into real-time issues or
peripheral device situations where an in-circuit emulator is required.
2.6
Simulator Considerations
The MPLAB SIM simulator executes on instruction cycle boundaries, and
resolutions shorter than one instruction cycle (TCY) cannot be simulated. The
MPLAB SIM simulator is a discrete-event simulator where all stimuli are
evaluated, and all responses are generated, at instruction boundaries or TCY
= 4 TOSC, where TOSC is the input clock period. Therefore some physical
events cannot be accurately simulated. These fall into the following
categories:
• Purely asynchronous events
• Events that have periods shorter than one instruction cycle
In summary, the net result of instruction boundary simulation is that all events
get synchronized at instruction boundaries, and events smaller than one
instruction cycle are not recognized.
The following list itemizes the functions and peripherals among the entire
PICmicro MCU family of microcontrollers that are affected by simulation on
instruction cycle boundaries:
• Clock pulse inputs smaller than one cycle can not be simulated even
though timer prescalers are capable of accepting clock pulse inputs
smaller than one cycle.
• PWM output pulse resolution less than one cycle is not supported.
• Compares greater than 8 bits are not supported.
• In unsynchronized counter mode, clock inputs smaller than one cycle
can not be used.
• The oscillator waveform on RC0/RC1 pins can not be shown.
• MPLAB SIM simulator does not simulate serial I/O.
DS51025E-page 68
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.7
Break and Trace Points
The debug functions affect execution of program instructions based upon the
following elements:
• Break Points
• Trace Points
• Pass Counter Addresses
MPLAB IDE limits the number of named address ranges to a maximum of 16
in each dialog.
The following figures show the dialog boxes for assigning names to address
ranges. Access the Break Point Settings dialog through the Debug > Break
Settings menu item, and the Trace Point Settings dialog through the Debug >
Trace Settings menu item.
Figure 2.1: Break Point Settings Dialog
Note:
 2001 Microchip Technology Inc.
When using the MPLAB ICD, you can only set one break point
address, and no pass count may be set. When using MPLAB ICE
2000, use the Complex Trigger dialog to define any break points
that require a pass counter.
DS51025E-page 69
Using
MPLAB IDE
Trace points and break points function totally independent of each other, and
you can set them at any program memory location.
Part
MPLAB® IDE User’s Guide
Figure 2.2: Trace Point Settings Dialog
Note:
2.7.1
The Trace Point Settings dialog is not available in MPLAB ICE
2000 or MPLAB ICD. The MPLAB ICE 2000 trace may be configured through the Complex Trigger dialog.
Real-Time Break Points
A break point is a condition in which the processor executes code and halts
after a certain condition is met.
Note:
If execution doesn’t halt at the break point, select Options > Development Mode and click the Break Options tab. Make sure that
Global Break Enable is selected (check marked).
MPLAB IDE provides the following ways to set a break point:
• Break on Address Match
• Break on Trace Buffer Full
• Break on Pass Count Reached
• Break on Stack Overflow
• Break on Watchdog Timer Time-out
• User Halt
DS51025E-page 70
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
The Program Memory Window shown in Figure 2.3 shows the following
information:
B
Break Points
T
Trace Points
Q
Pass Counter Addresses
Part
Using
MPLAB IDE
Figure 2.3: Program Memory Window
2.7.1.1
Break On Address Match
Break on Address Match allows you to halt the processor when the processor
program counter equals a certain value. The processor breaks before the
valid instruction is executed. For example, if a break point is set at address
5Ah, then the processor breaks before executing the instruction at address
5Ah.
2.7.1.2
Break On Trace Buffer Full
MPLAB IDE can be set to halt the processor after capturing 8K selected
cycles (when the trace buffer is full).
 2001 Microchip Technology Inc.
DS51025E-page 71
MPLAB® IDE User’s Guide
2.7.1.3
Break On Pass Counter Equal to Predefined Value
MPLAB IDE has a Pass Counter switch that you can assign to either trace
logic or break logic. The Pass Counter can be used to break or trace after the
processor executes an address a predefined number of times.
For example, if the Pass Counter is assigned to break logic, then when the
pass counter decrements to zero, the Pass Counter acts as a break point and
halts the processor.
2.7.1.4
Break On Stack Overflow
Break on Stack Overflow causes MPLAB IDE to execute a break when the
stack overflows.
2.7.1.5
Break On Watchdog Timer
If enabled, MPLAB IDE executes a break when a Watchdog Timer time-out
generates a device RESET.
2.7.1.6
User Halt
MPLAB IDE provides three ways to stop at a break point any time the
processor is running:
• Click Debug > Run > Halt.
• Click F5.
• Click the Halt Icon (red stop light).
2.7.2
Real-Time Trace Points
A trace is a function that logs program execution. The MPLAB SIM simulator
has an 8K real-time trace buffer that logs addresses and opcodes as they
execute. This circular trace buffer continues logging data after the buffer is
full, losing the oldest data (unless you have selected Break on Trace Buffer
Full in the Break Options tab of the Development Mode dialog).
2.7.2.1
Circular Trace Buffer
MPLAB IDE continuously captures selected bus cycles into the trace buffer.
The status information captured into the trace buffer is grouped as follows:
• 16 Bits of Address
• 16 Bits of Opcode/Data
• Time Stamp and Changed Registers
DS51025E-page 72
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
Part
Timing,
changed registers
and stack
Figure 2.4: Trace Memory Window
2.7.2.2
Halting Trace from the Toolbar
Halt Trace allows you to take a snapshot of the trace buffer and look at the
captured trace without halting the processor. In the toolbar, click Halt Trace to
display a snapshot of the trace buffer without halting the processor. Once the
trace buffer is halted, click Halt Trace again to take another trace snapshot.
2.7.2.3
MPLAB SIM Simulator Trace Display
The trace window can be used to collect executed instructions from the
MPLAB SIM simulator. The trace will show the program memory address,
executed code, time stamp and changes to registers. The time stamp uses
the same data as the MPLAB IDE Stop Watch. You can reset the time stamp
by resetting the Stop Watch.
2.7.3
Assigning a Pass Count to Break or Trace Points
MPLAB IDE’s 16-bit Pass Counter decrements by one on any address match
in program memory.
When the processor is in a Halt state, you can modify the count value for the
pass counter in the Break Point Settings or Trace Point Settings dialog box.
To set up the Pass Counter, first set the desired address ranges, then load the
counter with a desired count value (up to 16 bits). When the counter
decrements to zero, the emulator will halt.
 2001 Microchip Technology Inc.
DS51025E-page 73
Using
MPLAB IDE
Address
Label
Opcode
Instruction Data
MPLAB® IDE User’s Guide
Note:
2.7.3.1
The pass counter does not automatically reset. You must select Set.
Pass Counter Assigned to Break
If the Pass Counter is assigned to Break, the processor halts upon
encountering a break point (either internal or external conditions) or when the
Pass Counter reaches zero.
Figure 2.5: Break Point Settings Dialog – Pass Counter
Example 2.1: This example shows break points and pass counter
addresses used in the same code (Figure 2.5). Keep in mind that break
points and pass counter addresses are independent of each other.
1. Set up a named break point range from address 100 to 200.
- Type Halt_Range in Title box.
- Type 100 in the Start box and 200 in the End box.
- Click Add to enter the break point.
2. Set a Pass Counter Address at 500.
- Type 10K_Passes in Title box.
- Type 500 in the Start box and in the End box.
- Click Add to enter the break point.
3. Load the Pass Counter with a value of 1000.
- Select (click on) the 10K_Passes break point.
- Click on the check box of the now-ungrayed Address is Qualifier.
- Type 1000 in the Pass Count box and click Set.
The processor halts if it executes any instructions within the address range
100 to 200 or after executing 1000 instructions at address 500.
DS51025E-page 74
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.7.3.2
Pass Counter Assigned to Trace
If the Pass Counter is assigned to trace, then the real-time trace buffer does
not capture data until the Pass Counter decrements to zero. When the pass
counter decrements to zero, the trace buffer starts capturing data on valid
cycles.
2.7.3.3
Using Pass Counter to Count Events
The Pass Counter decrements each time an event occurs. You can use this
feature to count the number of times an event happens.
Conditional Break Dialog
When a conditional break is set, MPLAB IDE halts when the value of a
specified internal register reaches a preset value or condition.
Access the Conditional Break dialog through the Debug > Execute >
Conditional Break menu item.
Figure 2.6: Conditional Break Dialog
Note:
 2001 Microchip Technology Inc.
The Conditional Break dialog is not available in MPLAB ICE 2000
or MPLAB ICD development modes. For MPLAB ICE 2000, refer
to the Complex Trigger dialog for this functionality.
DS51025E-page 75
Using
MPLAB IDE
2.8
Part
MPLAB® IDE User’s Guide
2.8.1
Conditions
MPLAB IDE will stop at a break point in the Conditional Break dialog based on
one of the following conditions:
• User Halt – MPLAB IDE executes until you click the Halt button on the
Conditional Break dialog.
• Number of Cycles – MPLAB IDE halts after the target processor executes the specified number of cycles.
• Logic Condition satisfied.
2.8.2
Trace Data
Trace Data allows you to track the value of the registers in the Conditional
Break dialog.
2.8.3
Single Cycle
In the Single Cycle mode, MPLAB IDE single steps the processor until the
condition is met.
2.8.4
Multiple Cycles
In Multiple Cycle mode:
• Conditional Break executes instructions in real-time (in the emulator),
halts at user selected break points, checks the specified condition, and
continues executing instructions in real-time. The emulator or simulator
only stops when meeting the specified condition.
• Break points and register conditions are only checked at the break
points you specify in the Break Settings dialog.
2.9
Stimulus Functions
The stimulus generates signals for the simulator. You can set pins high or low,
and inject values directly into registers. The four stimulus modes are:
• Asynchronous Stimulus – An interactive dialog to control signals on
input pins
• Stimulus Pin File – The contents of a text file describe signals to input
pins
• Stimulus Register File – The contents of a text file are used to set 8-bit
values directly into a register
• Clock Stimulus – A regular, programmable, periodic source of stimulus
pulses
DS51025E-page 76
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.9.1
Asynchronous Stimulus Dialog
This stimulus feature provides a dialog button to simulate +5 and 0 volts being
applied to input pins. As your program executes with the simulator, you can
click buttons on this dialog to change levels on pins.
As an example, we’ll set up a signal that will toggle the level on a pin on I/O
portb of the PIC16F84.
Select Debug > Simulator Stimulus > Asynchronous Stimulus. This dialog will
be displayed:
Part
Using
MPLAB IDE
Figure 2.7: Asynchronous Stimulus Dialog
Place the cursor over the button labelled “Stim1 (P)” and click the right mouse
button. A shortcut menu will appear. Scroll down and select Toggle.
Figure 2.8: Toggle Option
Again put the cursor over the button now labelled “Stim1 (T)” (the “P” was
replaced by a “T,” meaning “Toggle”), click the right mouse button and select
Assign Pin from the shortcut menu.
 2001 Microchip Technology Inc.
DS51025E-page 77
MPLAB® IDE User’s Guide
A dialog will display a list of pins on the PIC16F84.
Figure 2.9: Pin Selection
Put the cursor over “RB0” and double-click. The Asynchronous Stimulus
dialog should now look like Figure 2.10. Note that the button now shows “RB0
(T).”
Figure 2.10: Asynchronous Stimulus Dialog – RB0(T)
Choose Debug > Run > Animate to get the processor running in a “fast single
step” mode. The status bar will alternate run to stop very fast.
Click the “RB0 (T)” button on the Asynchronous Stimulus dialog. You should
see the value of portb in the Special Function Register window change as you
repeatedly click the button to simulate a high signal then a low signal applied
to portb pin 0.
2.9.2
Pin Stimulus Files
A Pin Stimulus file consists of columns of input ones and zeros that will be
applied to pins when the “Cycle” value in the Stopwatch matches the CYCLE
column.
2.9.2.1
Creating a Pin Stimulus file
1. Select File > New File. An Untitled window will appear on your desktop.
You will create the Pin Stimulus file in this window.
DS51025E-page 78
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2. Type the word CYCLE in the first line of the Untitled file window.
Note:
For backward compatibility with earlier versions of the simulator,
the first line must always start with the word CYCLE or STEP. The
first column specifies the CYCLE (as determined by MPLAB IDE's
Stopwatch window) where the values in the other columns will be
applied.
Note:
To see a list of supported pins, select Debug > Simulator Stimulus
> Asynchronous and right-click on a stimulus button.
4. In the remaining lines of the file, type the cycles during which the pins
are to receive the stimuli, followed by the high and low values. You can
put comments on a line using the “;” or “!” character preceded and followed by at least one space.
5. Select File > Save As... to save your file. Select the drive and folder in
which the file is to be stored, and enter the file name you would like to
assign it. Give the file a .sti extension. Your file is now ready to use.
2.9.2.2
Using a Pin Stimulus file
1. Select Debug > Simulator Stimulus > Pin Stimulus > Enable and select
the appropriate file to enable the pin stimulus file.
2. Open the Stopwatch window by selecting Window > Stopwatch. Also
select Window > Special Function Registers. Watch the port the pins are
on. Or, simply add the port that the pins are on to a Watch window. The
Stopwatch window will show the elapsed time at each instruction, as
determined from the CYCLE value and the clock frequency. If the Stopwatch is reset to 0, the pin stimulus file will also be effectively reset.
3. Reset and single step. The port will change its value as set in your stimulus file.
2.9.2.3
Note:
Pin Stimulus File example
This example assumes that you have completed the simple project
tutorial in Chapter 3.
1. Select File > New File and type in the following text. You do not have to
type in the text after the “;” and “!” comment delimiters, but it is a good
idea to include them in this file.
 2001 Microchip Technology Inc.
DS51025E-page 79
Part
Using
MPLAB IDE
3. To the right of the word CYCLE, type the pin name for the PICmicro MCU
pin that will receive the high stimulus value. The third item on the first line
of the file should be the pin to receive the low stimulus value. These
names must match the Microchip PICmicro MCU pin names for the processor being simulated. You can add additional columns for additional
pins.
MPLAB® IDE User’s Guide
CYCLE
20
41
52
55
60
65
76
RB1
0
1
0
1
0
1
0
RB0
0
0
1
1
0
0
1
; apply high to port b bit 1
; apply high to port b bit 0, set bit 1 low
; toggle bit 1, then...
! ...toggle bit 0.
After the word CYCLE in the first line of the file are the pin names for the
PICmicro MCU pins that will receive the high and low stimulus values. In this
example pins RB1 and RB0, two inputs on Port B, will receive stimulus inputs.
Note:
For backward compatibility with earlier versions of the simulator,
the first line must always start with the word CYCLE or STEP. The
first column specifies the CYCLE (as determined by MPLAB IDE’s
Stopwatch window) where the values in the other columns will be
applied.
In this file, the second column contains values that will be applied to RB1
(PortB bit 1) and the third column has values for RB0 (PortB bit 0). These
names must match the Microchip PICmicro MCU pin names for the processor
being simulated. To see a list of all supported pins, right-click on a stimulus
button and look at the pin assignment pull-down list for the Asynchronous
Stimulus.
2. Select File > Save As to save as tutor84.sti.
3. Select Debug > Simulator Stimulus > Pin Stimulus > Enable to enable
the pin stimulus file.
Figure 2.11: Pin Stimulus Enable
DS51025E-page 80
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
4. Open the Stopwatch window by selecting Window > Stopwatch. Also
select Window > Special Function Registers. Watch Portb. Or, simply
add Portb to a Watch window.
The Stopwatch window will also show the elapsed time at each instruction,
as determined from the CYCLE value and the clock frequency. If the Stopwatch is reset to 0, the pin stimulus file will also be effectively reset.
5. Reset and single step until you execute 41 cycles. Portb will change its
value as set in the second line of the stimulus file.
Part
Using
MPLAB IDE
Figure 2.12: Stopwatch Window (41 Cycles)
Figure 2.13: Special Function Registers Window
 2001 Microchip Technology Inc.
DS51025E-page 81
MPLAB® IDE User’s Guide
2.9.3
Register Stimulus Files
A Register Stimulus file consists of a single column of values that will be sent
to a register when the program memory address reaches the location set in
the Register Stimulus Dialog. This is useful for simulating an A/D conversion
operation.
2.9.3.1
Creating a Register Stimulus file
1. Select File > New File. An Untitled window will appear on your desktop.
You will create the Register Stimulus file in this window.
2. In the Untitled window, type the list of values you wish to insert in a register. Be sure to type them in the order you wish to have them inserted
into the register.
3. Select File > Save As to save your file. Select the drive and folder in
which the file is to be stored, and enter the file name you would like to
assign it. Give the file a .reg extension.
2.9.3.2
Using a Register Stimulus file
1. Select Debug > Simulator Stimulus > Register Stimulus > Enable to open
the Register Stimulus dialog.
2. In the Program Memory Address box, enter the address in the program
where the stimulus values are to be injected.
3. In the Register Address box, select the file register address where the
values are to be injected.
4. Select Window > File Registers to open the File Registers window and
see the effect of your stimulus.
5. Reset and then single step the processor. Every time you reach the program memory address, the value in the file register at the register
address you specified will change. The list of values in your register stimulus file will be sequentially injected into the selected file register.
After the last value in your Register Stimulus file is injected, the first value
will be used again. The list will cycle as long as the MPLAB SIM simulator
executes.
DS51025E-page 82
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.9.3.3
Note:
Register Stimulus example
This example assumes that you have completed the simple project
tutorial in Chapter 3.
Figure 2.14: Register Stimulus Dialog
 2001 Microchip Technology Inc.
DS51025E-page 83
Part
Using
MPLAB IDE
1. Create a new file with File > New File and type in the following list of
numbers:
10
2E
38
41
50
7A
99
A0
FD
2. Select File > Save As to save the file and name it tutor84.reg. This
file will be used to sequentially inject these values into a register.
3. Select Debug > Simulator Stimulus > Register Stimulus > Enable, then
set "loop" to be the place in the program when values are injected, and
for demonstration purposes let’s inject them into the file register at
address 0x0d. After you set loop and 0d in the appropriate boxes, click
Browse to bring up the file dialog, and then select tutor84.reg as the
register stimulus file.
MPLAB® IDE User’s Guide
4. Select Window > File Registers to open the File Registers window and
see the effect of this stimulus.
Figure 2.15: File Register Window
5. Reset and then single step the processor. Every time you get to loop the
value in the file register at address 0x0D will change. The list of values
in tutor84.reg will be sequentially injected into the selected file register. Values of 0x10, 0x2E, etc. will be injected into the register selected
in the Debug > Simulator Stimulus > Register Stimulus dialog every time
loop is executed.
After the last value is injected (0xFD in tutor84.reg), the first value will
be used again (0x10). The list will cycle as long as the MPLAB SIM simulator executes.
2.9.4
Clock Stimulus
The clock stimulus generates a regular waveform on a pin with a duty cycle
that is specified in terms of the processor clock cycles.
Figure 2.16: Clock Stimulus
DS51025E-page 84
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
Select Debug > Simulator Stimulus > Clock Stimulus and enter clock
sequences for various stimulus clocks in the Clocked Stimulus dialog. These
settings will repeat until you exit MPLAB IDE or delete them using the Clocked
Stimulus dialog.
When you step or run using the settings of Figure 2.16, RB0 will be high for 4
clock cycles, then go low for 6 clock cycles. RB1 will go high for 8 clock cycles
then low for 8 clock cycles.
To add a stimulus, select the pin in the Stimulus Pin pull down list, set the high
and low clock sequence, and click Add.
To delete a stimulus, highlight it by clicking on it and then click Delete.
Part
Using
MPLAB IDE
 2001 Microchip Technology Inc.
DS51025E-page 85
MPLAB® IDE User’s Guide
2.10 12-Bit Core Device Simulator Issues
This section discusses I/O pins, interrupts, registers, peripherals, modes, and
conditions for using 12-Bit Core devices.
2.10.1
12-Bit Core Devices
See the file README.SIM for a list of devices supported by the MPLAB SIM
simulator.
2.10.2
I/O Pins
When modifying pins either manually or via the stimulus file, use the following
pin names only. These are the only ones that the MPLAB SIM simulator
recognizes as valid I/O pins. Because the pinout is device-specific, some pins
(for example RC0 on a PIC16C54) are not available on all parts in this family.
• MCLR
• T0CKI
• RA0-RA3
• RB0-RB7
• RC0-RC7
These pin names can be used in the Modify window (Window > Modify) and in
stimulus files.
2.10.3
CPU Model
2.10.3.1 Reset and Sleep Conditions
All RESET conditions are supported by the MPLAB SIM simulator.
A MCLR Reset during normal operation or during SLEEP can easily be
simulated by driving the MCLR pin low (and then high) via the stimulus file or
by using Debug > Run > Reset.
A WDT Time-out Reset is simulated when WDT is enabled and proper
prescaler is set (by initializing OPTION register appropriately) and WDT
actually overflows. WDT Time-out period (with prescale = 1) is approximated
at 18 ms (to closest instruction cycle multiple).
The Time-out (TO) and Power-down (PD) bits in the Status register reflect
appropriate RESET condition. This feature is useful for simulating various
power-up and time out forks in the user code.
DS51025E-page 86
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.10.3.2 Watchdog Timer
The Watchdog timer is fully simulated in the MPLAB SIM simulator. Because it
is configuration bit-selectable on the device, it must be enabled from the
Configuration tab of the Development Mode dialog, accessed by Options >
Development Mode in the MPLAB SIM simulator. The period of the WDT is
determined by the prescaler settings in the OPTION register. The basic period
(with prescaler = 1) is approximated at 18 ms (to closest instruction cycle
multiple).
2.10.4
Part
Peripherals
Note:
 2001 Microchip Technology Inc.
Because the MPLAB SIM simulator executes on instruction cycle
boundaries, resolutions below 1 TCY cannot be simulated.
DS51025E-page 87
Using
MPLAB IDE
Along with providing core support, the TIMER0 timer/counter module is fully
supported in both internal and external clock modes. The prescaler is made
readable and writable as the ‘T0PRE’ symbol.
MPLAB® IDE User’s Guide
2.11 14-Bit Core Device Simulator Issues
This section discusses I/O pins, interrupts, registers, peripherals, modes, and
conditions for using 14-Bit Core devices.
2.11.1
14-Bit Core Devices
See the file README.SIM for a list of devices supported by the MPLAB SIM
simulator.
2.11.2
I/O Pins
The 14-Bit Core devices have I/O pins multiplexed with other peripherals (and
therefore referred by more than one name). When modifying pins either
manually or via the stimulus file, use the following pin names only. These pin
names are the only ones that the MPLAB SIM simulator recognizes as valid
I/O pins. (Pins are available only as described in the data sheet of the specific
device.)
• MCLR
• RA0-RA5
• RB0-RB7
• RC0-RC7
• RD0-RD7
• RE0-RE7
These pin names can be used in the Modify window (Window > Modify) and in
stimulus files.
DS51025E-page 88
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.11.3
Interrupts
The MPLAB SIM simulator supports all interrupts of 14-Bit Core devices.
(Peripherals are available only as described in the data sheet of the particular
device.)
• Timer0 overflow
• Timer1 overflow
• Timer2
Part
• CCP1
• CCP2
Using
MPLAB IDE
• SSP (in SPI mode ONLY)
• Change on Port RB <7:4 >
• External interrupt from RB0/INT pin
• Parallel Slave Port
• Comparators
• A/D complete
• EEPROM write complete
2.11.4
CPU Model
2.11.4.1 Reset Conditions
All RESET conditions are supported by the MPLAB SIM simulator.
A MCLR Reset during normal operation or during SLEEP can easily be
simulated by driving the MCLR pin low (and then high) via the stimulus file or
by using MPLAB IDE Debug > Run > Reset.
The Time-out (TO) and Power-down (PD) bits in the Status register reflect
appropriate RESET condition. This feature is useful for simulating various
power-up and time-out forks in the user code.
2.11.4.2 Sleep
The MPLAB SIM simulator simulates the SLEEP instruction, and will appear
“asleep” until a wake-up from sleep condition occurs. For example, if the
Watchdog timer has been enabled, it will wake up the processor from sleep
when it times out (depending upon the prescaler setting in the OPTION
register).
Another example of a wake-up-from-sleep condition would be Timer1 wakeup from sleep. In this case, when the processor is asleep, Timer1 would
continue to increment until it overflows. If the interrupt is enabled, the timer
will wake the processor on overflow and branch to the interrupt vector.
 2001 Microchip Technology Inc.
DS51025E-page 89
MPLAB® IDE User’s Guide
2.11.4.3 Watchdog Timer
The Watchdog timer is fully simulated in the MPLAB SIM simulator. Because
it is configuration bit-selectable on the device, it must be enabled from the
Configuration tab of the Development Mode dialog, accessed by Options >
Development Mode in the MPLAB SIM simulator. The period of the WDT is
determined by the prescaler settings in the OPTION register. The basic period
(with prescaler = 1) is approximated at 18 ms (to closest instruction cycle
multiple).
2.11.5
Special Registers
To aid in debugging this device, certain items that are normally not
observable have been declared as “special” registers. Prescalers and
postscalers cannot be declared in your code as “registers,” so special labels
appear in the Special Function Registers window.
The following are special symbols that are available for the processors in the
14-bit core family. (Consult the data sheet for the particular device you are
using to see which symbols are implemented.)
• T0PRE – Prescaler for timer0
• T1PRE – Prescaler for timer1
• T2PRE – Prescaler for timer2
• T2POS – Postscaler for timer2
• CCP1PRE – Prescaler for CCP1
• SPIPRE – Prescaler for SPI
• SSPSR – SSP Shift register
DS51025E-page 90
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.11.6
Peripherals
2.11.6.1 Peripherals supported
Along with providing core support, the following peripheral modules (in
addition to general-purpose I/O) are supported. (Consult the data sheet for
the particular device you are using to see which symbols are implemented.)
• Timer0
• Timer1
Part
• Timer2
• CCP1
Using
MPLAB IDE
• CCP2
• Parallel Slave Port
• SSP (in SPI Mode only)
• Comparators
• A/D (Limited)
2.11.6.2 TIMER0
Timer0 (and the interrupt it can generate on overflow) is fully supported by the
MPLAB SIM simulator, and will increment by the internal or external clock.
Clock input must have a minimum high time of 1 TCY and a minimum low time
of 1 TCY due to stimulus requirements. The prescaler for Timer0 is made
accessible as T0PRE.
2.11.6.3 TIMER1
Timer1 in its various modes is supported by the MPLAB SIM simulator, except
when running in counter mode by an external crystal. The MPLAB SIM
simulator supports timer1 interrupts generated on overflow, and interrupts
generated by wake-up from sleep. The prescaler for Timer1 is viewable as
T1PRE in the Special Function Registers window. The external oscillator on
RC0/RC1 is not simulated, but a clock stimulus can be assigned to those pins.
2.11.6.4 TIMER2
Timer2 and the interrupt that can be generated on overflow are fully
supported by the MPLAB SIM simulator, and both the prescaler and
postscaler for Timer2 are viewable as T2PRE and T2POS.
2.11.6.5 CCP1 and CCP2
CAPTURE
The MPLAB SIM simulator fully supports capture and the interrupt generated.
The prescaler for the CCP module is viewable CCP1PRE.
 2001 Microchip Technology Inc.
DS51025E-page 91
MPLAB® IDE User’s Guide
COMPARE
Compare mode, its interrupt, and the special event trigger (resetting Timer1
by CCP1) are supported in this version of the MPLAB SIM simulator.
PWM
PWM output (resolution greater than 1 TCY only) are not supported in this
version of the MPLAB SIM simulator.
2.11.6.6 SSP
The Synchronous Serial Port is supported in SPI™ mode only. The shift
register (SSPSR) can be added to the view screen, observed, and modified.
The MPLAB SIM simulator currently does not support the I2C mode.
2.11.6.7 A/D Converter
All the registers, timing function, and interrupt generation are implemented.
However, the simulator does not load any meaningful value into A/D result
register (ADRES) at the end of a conversion.
2.11.6.8 EEPROM Data Memory
The EEPROM data memory (for PIC16F8X devices) is fully simulated. The
registers and the read/write cycles are fully implemented. The write cycle time
is approximated to 10 ms (to nearest instruction cycle multiple).
The simulator simulates the functions of WRERR and WREN control bits in
the EECON1 register.
DS51025E-page 92
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.12 16-Bit Core Device Simulator Issues
This section discusses I/O pins, interrupts, registers, peripherals, modes, and
conditions for using 16-Bit Core devices.
2.12.1
16-Bit Core Devices
See the file README.SIM for a list of devices supported by the MPLAB SIM
simulator.
Part
2.12.2
I/O Pins
• MCLR
• RA0-RA5
• RB0-RB7
• RC0-RC7
• RD0-RD7
• RE0-RE2
These pin names can be used in the Modify window (Window > Modify) and in
stimulus files.
2.12.3
Interrupts
The MPLAB SIM simulator supports all interrupts on 16-Bit Core devices:
• External interrupt on INT pin
• TMR0 overflow interrupt
• External interrupt on RA0 pin
• Port B input change interrupt
• Timer/Counter1 interrupt
• Timer/Counter2 interrupt
• Timer/Counter3 interrupt
• Capture1 interrupt
• Capture2 Interrupt
 2001 Microchip Technology Inc.
DS51025E-page 93
Using
MPLAB IDE
The 16-Bit Core devices have I/O pins multiplexed with other peripherals (and
therefore referred by more than one name). When modifying pins either
manually or via the stimulus file, use the following pin names only. These are
the only ones that the MPLAB SIM simulator recognizes as valid I/O pins:
MPLAB® IDE User’s Guide
2.12.4
CPU Model
2.12.4.1 Reset Conditions
All RESET conditions are supported by the MPLAB SIM simulator.
A MCLR Reset during normal operation or during SLEEP can easily be
simulated by driving the MCLR pin low (and then high) via the stimulus file, by
clicking the Reset button on the toolbar or by selecting Debug > Run > Reset.
A WDT Time-out Reset is simulated when the WDT is enabled (Options >
Development Mode dialog, Configuration tab), the proper prescaler is set, and
the WDT actually overflows. WDT time-out period is approximated at 12 ms
(to closest instruction cycle multiple) but can be changed by using the dialog.
The Time out (TO) and Power-Down (PD) bits in the ALUSTA register reflect
appropriate RESET condition. This feature is useful for simulating various
power-up and time-out forks in the user code.
2.12.4.2 Sleep
The MPLAB SIM simulator simulates the SLEEP instruction and will appear
“asleep” until a wake-up from sleep condition occurs. For example, if the
Watchdog timer has been enabled, it will wake up the processor from sleep
when it times out. Another example of a wake-up-from-sleep condition would
be an input change on Port B. If the interrupt is enabled and the GLINTD bit is
set, the processor will wake-up and will resume executing from the instruction
following the SLEEP command. If the GLINTD = 0, the normal interrupt
response will take place.
2.12.4.3 Watchdog Timer
The Watchdog Timer is fully simulated in the MPLAB SIM simulator. Because
it is configuration bit-selectable and configuration bit-configurable on the
device, it must be enabled from the Configuration tab of the Development
Mode dialog, accessed by Options > Development Mode in the MPLAB SIM
simulator. The basic period of the WDT (with prescaler = 1) is approximated
at 12ms (to closest instruction cycle multiple).
2.12.5
Special Registers
To aid in debugging this device, certain items that are normally not
observable have been declared as “special” registers. Prescalers cannot be
declared in user code as “registers,” so the following special symbols are
available in the Special Function Registers window:
• T0PRE (Prescaler for Timer0)
• WDTPRE (Prescaler for WDT)
DS51025E-page 94
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.12.6
Peripherals
2.12.6.1 Peripherals Supported
Along with providing core support, the following peripheral modules (in
addition to general-purpose I/O) are supported:
• Timer0 in both internal and external clock modes
• Timer1 and Timer2 (and their respective period registers)
Part
• Timer3
• Two Capture Modules
2.12.6.2 TIMER0
Timer0 (and the interrupt it can generate on overflow) is fully supported by the
MPLAB SIM simulator, and will increment by the internal or external clock.
Delay from external clock edge to timer increment has also been simulated,
as well as the interrupt latency period. Clock input must have a minimum high
time of 1 Tcy and a minimum low time of 1 TCY due to the stimulus file
requirements. The prescaler for Timer0 is made accessible as T0PRE. It can
be watched and modified.
2.12.6.3 TIMER1 and TIMER2
Timer1 and Timer2 in its various modes is fully supported by the MPLAB SIM
simulator. Delay from clock edge to increment (when configured to increment
from rising or falling edge of external clock) is simulated as well as the
interrupt latency periods. Clock input must have a minimum high time of 1 TCY
and a minimum low time of 1 TCY due to the stimulus file requirements.
2.12.6.4 TIMER3 and Capture
The MPLAB SIM simulator fully supports Timer3 and the Capture module in
all of its modes. Delays from clock edge to increment (when configured in
external mode), delay for capture, and interrupt latency periods are fully
supported. Clock input must have a minimum high time of 1 TCY and a
minimum low time of 1 TCY due to the stimulus file requirements.
2.12.6.5 PWM
Both PWM outputs are supported (resolution greater than 1 TCY only) are
supported in this version of the MPLAB SIM simulator.
 2001 Microchip Technology Inc.
DS51025E-page 95
Using
MPLAB IDE
• Two PWM Modules
MPLAB® IDE User’s Guide
2.12.7
Memory Modes
The following memory modes are supported by the MPLAB SIM simulator:
• Microcontroller Mode
• Extended Microcontroller Mode
• Microprocessor Mode
The default is Microcontroller mode. If you would like to use any of the other
modes, you must use the Configuration tab of the Development Mode dialog,
accessed by Options > Development Mode in the MPLAB SIM simulator.
The extended memory is only available on PIC17CXXX devices.
DS51025E-page 96
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.13 Enhanced 16-Bit Core Device Simulator Issues
This section discusses I/O pins, interrupts, registers, peripherals, modes, and
conditions for using Enhanced 16-Bit Core devices (PIC18CXXX).
2.13.1
16-Bit Core Devices
See the file README.SIM for a list of devices supported by the MPLAB SIM
simulator.
2.13.2
I/O Pins
The Enhanced 16-Bit Core devices have I/O pins multiplexed with other
peripherals (and therefore referred to by more than one name). When
modifying pins either manually or via the stimulus file, use the following pin
names only. These are the only ones that the MPLAB SIM simulator
recognizes as valid I/O pins:
• MCLR
• RA0-RA5
• RB0-RB7
• RC0-RC7
• RD0-RD7
• RE0-RE2
These pin names can be used in the Modify window (Window > Modify) and in
stimulus files.
 2001 Microchip Technology Inc.
DS51025E-page 97
Part
Using
MPLAB IDE
Note that this family of PICmicro MCU devices has a byte-organized program
memory space rather than word addressed as in the other PICmicro MCU
families. There are some restrictions in the silicon on how the program
memory space can be accessed, especially when using long writes to
program memory. The simulator may not show the same restrictions in all
situations. Consult the data sheet for proper operation.
MPLAB® IDE User’s Guide
2.13.3
Interrupts
The MPLAB SIM simulator supports all interrupts on Enhanced 16-Bit Core
devices:
• External interrupt on INT pin
• TMR0 overflow interrupt
• External interrupt on RA0 pin
• Port B input change interrupt
• Timer/Counter1 interrupt
• Timer/Counter2 interrupt
• Timer/Counter3 interrupt
• Capture1 interrupt
• Capture2 Interrupt
2.13.4
CPU Model
2.13.4.1 Reset Conditions
All RESET conditions are supported by the MPLAB SIM simulator.
A MCLR Reset during normal operation or during SLEEP can easily be
simulated by driving the MCLR pin low (and then high) via the stimulus file, by
clicking on the Reset button on the toolbar or selecting Debug > Run > Reset.
A WDT Time-out Reset is simulated when the watchdog timer is enabled in
hardware (Options > Development Mode, Configuration tab) or disabled in
hardware and enabled in software through the WDTCON register. When the
Watchdog timer actually overflows during normal operation, the chip will either
Reset and continue execution or will break (Options > Development Mode,
Configuration tab). The Watchdog timer time-out period depends on the
postscaler settings and is approximated at 18 ms (to closest instruction cycle
multiple) when configured with no postscaler.
2.13.4.2 Sleep
The MPLAB SIM simulator simulates the SLEEP instruction and will appear
“asleep” until a wake-up from sleep condition occurs. For example, if the
Watchdog timer has been enabled, it will wake the processor up from sleep
when it times out. Another example of a wake-up-from-sleep condition would
be an input change on Port B. If the interrupt is enabled and the GLINTD bit is
set, the processor will wake-up and will resume executing from the instruction
following the SLEEP command. If the GLINTD = 0, the normal interrupt
response will take place.
DS51025E-page 98
 2001 Microchip Technology Inc.
Debugging and MPLAB SIM Simulator
2.13.4.3 Watchdog Timer
The Watchdog timer is fully simulated in the MPLAB SIM simulator. Because
it is configuration bit-selectable and configuration bit-configurable on the
device, it must be enabled from the Configuration tab of the Development
Mode dialog, accessed by Options > Development Mode in the MPLAB SIM
simulator. The basic period of the WDT (with prescaler = 1) is approximated
at 12 ms (to closest instruction cycle multiple).
2.13.5
Special Registers
Part
• T0PRE (Prescaler for Timer0)
• WDTPRE (Prescaler for WDT)
2.13.6
Peripherals
2.13.6.1 Peripherals Supported
Along with providing core support, the following peripheral modules (in
addition to general-purpose I/O) are supported:
• Timer0 in both internal and external clock modes
• Timer1 and Timer2 (and their respective period registers)
• Timer3
• Two Capture Modules
• Two PWM Modules
The delays are implemented on all peripherals, but the interrupt latency is not.
2.13.6.2 TIMER0
Timer0 (and the interrupt it can generate on overflow) is fully supported by the
MPLAB SIM simulator, and will increment by the internal or external clock.
Delay from external clock edge to timer increment has also been simulated,
as well as the interrupt latency period. Clock input must have a minimum high
time of 1 TCY and a minimum low time of 1 TCY due to the stimulus file
requirements. The prescaler for Timer0 is made accessible as T0PRE. It can
be watched and modified.
 2001 Microchip Technology Inc.
DS51025E-page 99
Using
MPLAB IDE
To aid in debugging this device, certain items that are normally not
observable have been declared as “special” registers. Prescalers cannot be
declared in user code as “registers,” so the following special symbols are
available in the Special Function Registers window:
MPLAB® IDE User’s Guide
2.13.6.3 TIMER1 and TIMER2
Timer1 and Timer2 in its various modes is fully supported by the MPLAB SIM
simulator. Delays from clock edge to increment (when configured to
increment from rising or falling edge of external clock) is simulated as well as
the interrupt latency periods. Clock input must have a minimum high time of 1
TCY and a minimum low time of 1 TCY due to the stimulus file requirements.
2.13.6.4 TIMER3 and Capture
The MPLAB SIM simulator fully supports Timer3 and the Capture module in
all of its modes. Delays from clock edge to increment (when configured in
external mode), delay for capture, and interrupt latency periods are fully
supported. Clock input must have a minimum high time of 1 TCY and a
minimum low time of 1 TCY due to the stimulus file requirements.
2.13.6.5 PWM
Both PWM outputs are supported (resolution greater than 1 TCY only) are
supported in this version of the MPLAB SIM simulator.
DS51025E-page 100
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
Chapter 1. MPLAB IDE Toolbar and Menu Options
1.1
Introduction
This chapter gives detailed information on using the MPLAB IDE desktop
toolbars and menu options. The chapter organization follows the entries on
the pull-down menus.
1.2
Highlights
This chapter will discuss the following:
• MPLAB IDE Desktop
• File Menu
• Project Menu
• Edit Menu
• Debug Menu
Part
• Programmer Menu
• Options Menu
MPLAB IDE
Reference
• Tools Menu
• Window Menu
• Help Menu
 2001 Microchip Technology Inc.
DS51025E-page 101
MPLAB® IDE User’s Guide
1.3
MPLAB IDE Desktop
The MPLAB IDE desktop is a resizable window that operates independently
of the rest of the menu items.
To reduce the size of the MPLAB IDE window on your desktop, click the
Maximize button in the upper right corner of the desktop. To maximize the size
of the MPLAB IDE window again, click the Maximize button again. The next
time you start MPLAB IDE, the MPLAB IDE window will automatically open in
the size you last set it to. When not using MPLAB IDE, you can iconize the
window by clicking the Minimize button. MPLAB IDE will remain in your
computer’s memory, but the desktop will be free for you to use.
Figure 1.1 shows a maximized desktop.
Figure 1.1: MPLAB IDE Desktop
MPLAB IDE dialog boxes behave as normal Windows applications and allow
you to access standard Windows functions (as well as MPLAB IDE-specific
functions) through the Microsoft Windows system button in the upper left hand
corner. Other standard Windows features include window size buttons, icon
buttons, vertical and horizontal scroll bars, and elevator buttons.
All MPLAB IDE functions are accessible through the menu bar located across
the top of the desktop. MPLAB IDE menus that pull down from the menu bar
allow you to access the emulator functions. Underlined characters on the pulldown menus are keyboard shortcuts. To use a shortcut, press and hold down
the <Alt> key and press the shortcut key. For example, press and hold down
DS51025E-page 102
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
the <Alt> key and press <F> to display the file menu. With the File menu
displayed and the <Alt> key still held down, press <O> to display the Open
File dialog.
1.3.1
Toolbars
For your convenience, MPLAB IDE contains four toolbars to provide you with
shortcuts for performing routine tasks. The four toolbars are:
• Edit Toolbar
• Debug Toolbar
• Project Toolbar
• User Defined Toolbar
Click the button at the far left of the toolbar to display the desired toolbar.
Refer to “Appendix 2: MPLAB IDE Toolbar and Status Bar Definitions” for
complete descriptions of all four toolbars.
The buttons on each toolbar can be reconfigured for your specific needs.
Refer to Section 1.9.5.1.2 for information.
Part
Figure 1.2: MPLAB IDE Debug Toolbar
Status Bar
The figure below shows the status bar (Figure 1.3) that appears at the bottom
of the MPLAB IDE desktop. Refer to “Appendix 2: MPLAB IDE Toolbar and
Status Bar Definitions” for a description of the symbols on the status bar.
Figure 1.3: Status Bar
 2001 Microchip Technology Inc.
DS51025E-page 103
MPLAB IDE
Reference
1.3.2
MPLAB® IDE User’s Guide
1.3.3
System Menu
MPLAB IDE provides windows for viewing various information.
Note:
Use the system window control to change how data is displayed in
the window.
system window control
1.4
File Menu
Options under the File menu are:
• New
• Open...
• View...
• Save
• Save As...
• Save All
• Close
• Close All
• Import
• Export
• Print
• Print Setup
• Exit
• (Most-Recently-Used File List)
DS51025E-page 104
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.4.1
New File
The File > New command opens a new, empty window in which you can type.
The window does not initially have a file name. To save the new file’s
contents, select File > Save As.
When the MPLAB Editor creates the window, it applies the set of modes that
are defined for new files.
The tab size and other settings are set for new files in the Editor Modes tab
after selecting Options > Environment Setup.
1.4.2
Open Existing File
To edit one or more existing files, select File > Open. It opens a standard
dialog from which you select the files to edit. If a selected file is already open,
MPLAB Editor activates the window that is currently showing the file.
Part
MPLAB IDE
Reference
Figure 1.4: Open Existing File
1. Use the Drives and Folders list boxes to select the disk drive and the
folder.
2. Select the files you want to open in the File Name list box.
To add multiple single files from the list, hold down the <Ctrl> key and click
on the desired files.
To add a list of files, either hold the <Shift> key and click on the first and
last file in the desired range, or click on the first file and drag down to the
last file.
You can also type the name of the file(s) to open in the File Name field.
3. If you want to open the files in read only mode, check the Read Only box.
This affects all the files you open in this operation.
4. Click OK to open the files.
 2001 Microchip Technology Inc.
DS51025E-page 105
MPLAB® IDE User’s Guide
The “List Files of Type” list at lower left allows you to restrict the files shown in
the list to those matching specific filename patterns. For example, “*.ASM” will
list all files with the suffix “.ASM.”
Whether you close the dialog with the OK or the Cancel buttons, MPLAB
Editor makes its current working folder the one in the dialog.
If a file is selected that is already being edited, MPLAB Editor activates the
window showing the file.
1.4.3
View File
The File > View command opens one or more existing files in read only mode.
You can examine their contents, but not alter them. The File > View action is
exactly as if you used the File > Open command and checked the Read Only
box.
DS51025E-page 106
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.4.4
Save File
To save files to disk you have three options:
Select File > Save to save the contents of the current window to disk. The
MPLAB Editor replaces the file with the contents of the current window. If the
current file is unnamed, MPLAB Editor prompts for a new filename. If a file of
the same name exists, MPLAB Editor makes that the backup copy and saves
the current file.
Select File > Save As to save the contents of a file to disk, allowing you to
specify the file name. The MPLAB Editor confirms overwrites of existing files.
1. Use the Drives and Directories list boxes to select the disk drive and the
folder where you want to save the file.
2. Either type the name of the file into in the File Name edit control, or select
the name of an existing file you want to overwrite from the list box.
3. Click OK to save the data to the file. If you specify the name of a file that
already exists, MPLAB Editor confirms the overwrite.
4. Use the List Files of Type list at the lower left to restrict the files shown
in the list to those matching specific filename patterns.
Part
MPLAB IDE
Reference
Select File > Save All to save all altered files, stores all altered templates into
template files, and saves all altered template files in a single operation.
Note:
 2001 Microchip Technology Inc.
Clicking Cancel in any of the dialogs that occur in this process cancels the entire Save operation.
DS51025E-page 107
MPLAB® IDE User’s Guide
1.4.5
Close File
To close the file being shown in the current window, select File > Close.
Select File > Close All to close all the open files that you’re working on.
If you have changed any of the files and haven’t saved the changes to disk,
MPLAB Editor prompts you to save the changes, discard them, or cancel the
entire operation.
1.4.6
Import
The File > Import functions allow you to move data from a PC file to the
emulator and into target memory or into the simulator memory. This function
also allows you to transfer data from the target into emulator memory for
debugging.
1.4.6.1
Import to Memory
Select File > Import > Import to Memory to display the dialog box for selecting
a file to import (download). The file you select is imported to the emulator
memory or simulator memory. The file must be a valid HEX file. If you have a
HEX file (ex; code.hex) ready for programming the PICmicro MCU device,
use this option to load your HEX code into the MPLAB IDE Program Memory
window. The file can be created by building an MPLAB IDE project or my
exporting program memory.
Figure 1.5: Import Emulation Memory Dialog
DS51025E-page 108
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.4.6.1.1. PIC17CXXX and PIC18CXXX Devices
If the current target processor belongs to the PIC17CXXX or PIC18CXXX
device family, then the file should be in the Intel extended hex file format
(INHX32). If the object file is successfully imported, then the symbols are
loaded automatically from the file ∗.COD. The default extension for the object
code file is .HEX.
If you do not have a *.COD file, you may want to turn off source tracking.
Select Options > Environment Setup, click the General tab, and locate the
source tracking setting in the Global Switches section of the dialog.
Note:
Use INHX32 if your application addresses memory beyond 64 KB
(32K words for the PIC17CXXX) or contains configuration bit information.
1.4.6.1.2. All Other PICmicro® MCU Devices
If the current target processor belongs to a PICmicro MCU family other than
the PIC17CXXX or PIC18CXXX device family, then the file should be in the
Intel 8-bit hex file format (INHX8M) or the Intel extended hex file format
(INHX32). If the object file is successfully imported, then the symbols are
loaded automatically from the corresponding .COD file if it exists. The default
extension for the object code is .HEX.
Part
MPLAB IDE
Reference
 2001 Microchip Technology Inc.
DS51025E-page 109
MPLAB® IDE User’s Guide
1.4.6.2
Import to Target Memory
For PIC17CXXX or PIC18CXXX devices (that support extended memory)
operating with an emulator in either microprocessor or extended
microcontroller mode, you may select off-chip memory from a target board.
Select Options > Development Mode and click the Configuration tab to
access the Processor Mode. Select Options > Development Mode and click
the Memory tab to access Off-Chip Memory.
To import (download) a data file to target memory, select File > Import >
Import to Target Memory to display the dialog box for selecting a file to import
through the emulator to target memory. The file must be a valid HEX file in the
Intel extended hex file format (INHX32). The file can be created by building an
MPLAB IDE project or by exporting program memory.
Figure 1.6: Import Target Memory Dialog (MPLAB ICE 2000)
Downloading data to off-chip memory on a target board does not
automatically update that memory range in the Program Memory window. To
perform this function, use the Window > Modify > Read Range feature. See
Section 1.11.14.
DS51025E-page 110
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.4.7
Export
1.4.7.1
Export Trace Buffer
Select File > Export > Export Trace Buffer to display a dialog box that will
allow you to save the emulator or simulator trace buffer to the selected file.
Note:
If you have a full trace buffer with maximum length labels, saving
the trace for the MPLAB ICE 2000 emulator could require over 7
MB. Saving the complete trace buffer as it appears in the Trace
Window (address, data, disassembled code and external logic
probe lines) can exceed 1 MB for the MPLAB SIM simulator.
1.4.7.1.1. MPLAB ICE 2000 Trace Buffer
Part
File name
Type the name of the file into in the File Name box or select the
name of an existing file you want to overwrite from the list.
Save file as
type
Specify the type of file the trace buffer will be saved as. The list
of files shown will be restricted to those of the type you specify.
Folders Select the folder where you want to save the file.
Drives
OK
Cancel
Read Only
 2001 Microchip Technology Inc.
Select the disk drive where you want to save the file.
Click OK to save the data to the file. If you specify the name of
a file that already exists, MPLAB Editor confirms the overwrite.
Note: Clicking Cancel cancels the entire Save operation.
Select Read Only if you wish to prevent the file from being
overwritten later.
DS51025E-page 111
MPLAB IDE
Reference
Figure 1.7: Export Trace Buffer Dialog (MPLAB ICE 2000)
MPLAB® IDE User’s Guide
1.4.7.1.1. MPLAB SIM Trace Buffer
Figure 1.8: Export Trace Buffer Dialog (MPLAB SIM)
Range
Select the range (0 to 8191) of the trace buffer that you
want to save. Enter the desired value for the Start line
number and for the End line number.
Filter Data: All Writes the complete trace buffer to the selected file.
Filter Data:
Opcode/
Data Only
Filter Data:
Address Only
DS51025E-page 112
Saves Opcode / Data only (for PIC17CXXX external
read/write cycles). Available only with the MPLAB ICE
2000.
Saves Address only.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.4.7.2
Export Memory
Select File > Export > Export Memory to display the Export Memory dialog
box and export memory contents to a file.
If you have a programmed PICmicro MCU device that you may wish to copy
to other devices later, you can save the device’s program memory by reading
it into MPLAB IDE (using the Read Device option from the device programmer
menu), then exporting the results of the Read to a HEX file using the File >
Export > Export Memory option. Later, you can program another device by
importing the file into MPLAB IDE and using the Program/Verify option from
the device programmer menu.
Note:
All locations (including the empty locations) in the range you select
when you export will overwrite program memory when you import
later. In contrast, the Build Project process ignores empty locations
when creating a HEX file.
Part
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Figure 1.9: Export Memory Dialog
Memory areas
Determine which memory areas you want to save in
the build output file.
Program Memory
Select to save program memory. Also state the Start
and End address of program memory to save (entire
range is the default).
Configuration Bits
Select to save configuration bit settings.
IDs
EEPROM Memory
Calibration Memory
 2001 Microchip Technology Inc.
Select to save ID information, if applicable.
Select to save EEPROM memory, if applicable.
Select to save the calibration memory, if applicable.
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Output format
Disassembled Code
HEX Code
1.4.8
Determine the format of the output file.
Select to save in disassembled code format.
Select either hex code format INHX32 or INHX85
(Intel split hex) format.
Print (Ctrl+P)
Select File > Print to print some or all of the current file on your currently
selected printer.
The Print dialog allows you to specify the details of how the file is to be printed
and on which printer.
By default, MPLAB IDE uses the same printer that you specified the last time
you printed a file. The default details of the printing, such as line wrapping,
page headers, tab size, and line numbering are taken from the window edit
modes set on the current window. You can configure both these settings with
the Options > Current Editor Modes menu command.
The dialog box shows the name of the printer that MPLAB IDE is currently
using—if you haven't specified otherwise, this will be your system default
printer.
1.4.8.1
Print Current File Options
Figure 1.10: Print Current File Dialog
Setup Printer
Whole File
DS51025E-page 114
Click Setup Printer to change printers, printer font,
or page margins.
Click Whole File (the default) to print entire file.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
Selected Text
Click Selected Text to print only the text that is
highlighted. This option is available only if you have
text highlighted.
Line Range
Click Line Range and fill in the start and end line
numbers to print a range of lines. You can use the
words “start” and “end” to represent the first and last
lines of the file.
Number Lines
Select Number Lines to print lines with numbering.
Wrap Long Lines
Select Wrap Long Lines to fold lines too long to fit
the page rather than being truncated.
Page Headers
1.4.9
Select Page Headers to start each page with a
header giving the file name and other information.
Print Setup
Select File > Print Setup to set up details of the printer that MPLAB IDE will
use, run an individual printer’s setup dialog, and select the font. MPLAB IDE
records the values you set with the Print Setup option for the selected printer.
Thus, you can have different settings for different printers. These values
become the defaults.
Part
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Reference
Figure 1.11: Printer Setup Dialog
File > Print Setup lets you specify:
• Which printer to use
• What page margins are to be applied when you print on this device
• What font to use with this printer
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MPLAB® IDE User’s Guide
File > Print Setup also allows you to run the printer’s own setup dialog to set
device-specific information.
Available Printers
Print Options
Setup
Font
To use a different printer than the one that is highlighted in the Available Printers list, scroll the list and
click the left button on the printer name.
To change the margins used on each page, check
or uncheck the boxes in the Print Options area.
To run the highlighted printer’s own setup dialog,
click Setup.
To change the printer font that MPLAB IDE will use
for the highlighted printer, click Font.
Because MPLAB IDE is a text editor rather than a word processor, you’re
restricted to choosing fixed pitchfonts, where the characters are all the same
width.
If you run your printer’s own setup dialog after selecting a font, you may find
that the font is no longer available; some printers offer different fonts in
different operating modes.
1.4.10
Exit (Alt+F4)
Select File > Exit to terminate your MPLAB IDE session.
If any of the files you’re working with have changed and you haven’t saved the
changes to disk, MPLAB IDE will prompt you to save each one in turn. You
can choose to save the changes, discard them, or cancel the exit operation.
You will also be prompted to save the current project.
1.4.11
Most-Recently-Used File List
The MPLAB Editor adds the Most-Recently-Used (MRU) Files list to the end
of the File Menu. Whenever you open a file, MPLAB Editor records the file
name in the list, arranging the list so that the files that have been most
recently used appear at the top. Any file in the list can be reopened simply by
clicking on the menu item. This is a user configurable option. See
Section 1.9.5.3.
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MPLAB IDE Toolbar and Menu Options
1.5
Project Menu
The following options are available on the Project menu:
• New Project: Creates a new project
• Open Project: Opens an existing MPLAB IDE project
• Close Project: Closes the currently open MPLAB IDE project
• Save Project: Saves the MPLAB IDE project
• Edit Project: Allows you to adjust many settings, add files, etc.
• Make Project: Builds all changed nodes in the project
• Build All: Builds all nodes in the project
• Build Node: Builds the selected node
• Install Language Tool: Allows you to configure MPLAB IDE to recognize
a language tool
• (Most Recently Used Projects): Displays the most recently used
projects
For detailed information on Project menu items, refer to "Chapter 3. Getting
Started with MPLAB IDE – A Tutorial."
Part
MPLAB IDE
Reference
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1.6
Edit Menu
1.6.1
General Edit Options
MPLAB Editor inserts text in either insert or strikeover mode. MPLAB Editor
shows the mode as either “INS” or “OVR” on the status bar.
1.6.1.1
Undo – Ctrl+Z
Select Edit > Undo to undo the last edit action. When there is no edit action to
undo, the menu command shows Can’t Undo, and you cannot select the
command.
You can configure the number of recent edit actions that can be undone. See
Section 1.9.5.4.
1.6.1.2
Cut – Ctrl+X
Deletes the highlighted text in the current window, placing it on the clipboard.
After this operation, you can paste the deleted text into another MPLAB Editor
window or into another Windows application.
1.6.1.3
Copy – Ctrl+C
Copies the highlighted text in the current window onto the clipboard. After this
operation, you can paste the copied text into another MPLAB Editor window
or into another Windows application.
1.6.1.4
Paste – Ctrl+V
Pastes the contents of the clipboard into the current window at the position of
the cursor. You can only perform this operation if the clipboard contains data
in text format. MPLAB Editor does not support pasting of bitmaps or other
clipboard formats.
1.6.1.5
Select All
Highlights the entire contents of the current window.
1.6.1.6
Select Word – Left Mouse Button Double-Click
Double-click the left mouse button to highlight the word that the cursor is on.
1.6.1.7
Delete Line – Ctrl+Shift+K
Deletes the entire line containing the cursor and moves the cursor to the start
of the next line.
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MPLAB IDE Toolbar and Menu Options
1.6.1.8
Delete EOL – Ctrl+K
Deletes the text from the position of the cursor to the end of the line. If the
cursor is at the start of a line that is completely empty, the next line is moved
up to close the gap.
1.6.1.9
Goto Line – Ctrl+G
Moves the cursor to the start of a specific line.
This menu command allows you to specify either an absolute or a relative line
number.
1.6.1.10 Find – F3
This command searches the current window for the text string using the
search parameters you specify. If there is highlighted text in the current
window, the Find operation uses it as the search string.
To search for text in a window, place the cursor at the start point of the
search, and select Edit > Find.
Part
MPLAB IDE
Reference
Figure 1.12: Find Dialog
In the Find dialog you can search for special characters by using the escape
sequence for the character. You can use “\n” for carriage returns, “\t” for tabs,
and “\\” for backslashes.
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1.6.1.11 Replace – F4
This command searches the current window for a text string, and optionally
replaces occurrences with another string. This command lets you specify
search parameters. If there is highlighted text in the current window, the
Replace operation uses it as the search string.
Figure 1.13: Replace Dialog
To replace text or special characters in a window, place the cursor at the start
point, and select Edit > Replace. In the Replace dialog you can replace
special characters by using the escape sequence for the character. You can
use “\n” for carriage returns, “\t” for tabs, and “\\” for backslashes.
1.6.1.12 Repeat Find – Shift+F3
To repeat a search without using the Find Dialog, select Edit > Repeat Find.
1.6.1.13 Repeat Replace – Shift+F4
To repeat the last replace operation without prompting for details, select Edit >
Repeat Replace.
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MPLAB IDE Toolbar and Menu Options
1.6.1.14 Match Brace – Ctrl+B
MPLAB Editor allows the user to manipulate brace characters such as
brackets and parentheses, which often delimit sections of text or program
sources.
The definition of a brace character varies, depending on the language type
set in a window’s window modes. For C, braces are defined as the characters
that have syntactic meaning – opening braces are { [ or (, and closing
braces are } ] or ).
For the language type “none,” brace characters are defined as those
commonly used in text or many other languages – opening braces are
{ [ ( or <, and closing braces are } ] ) or > .
To locate matching braces, place the cursor on one of the braces and use Edit
> Match Brace. The cursor moves to the matching brace, respecting the level
of nesting in the code.
1.6.2
Template Options
1.6.2.1
Attach Template File
Part
Figure 1.14: Attach Template File Dialog
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The Edit > Template > Attach File command attaches an existing template
(.TPL) file, loading it into memory so the templates within it can be used.
Select the file you wish to attach, and click OK.
MPLAB® IDE User’s Guide
1.6.2.2
Detach Template File
Use the Edit > Template > Detach File command to remove a template file
from memory. Once a template file is detached, you cannot use the templates
it contains.
Select Edit > Template > Detach File, select the template file you wish to
detach, and click OK. You cannot detach the file if you’re editing one of its
individual templates.
Figure 1.15: Detach Template File Dialog
DS51025E-page 122
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MPLAB IDE Toolbar and Menu Options
1.6.2.3
Create Template File
The first step in preparing MPLAB IDE templates for application developers’
use is to create the file that will contain the templates.
Use the Edit > Template > Create File command to have MPLAB Editor create
the template (.TPL) file that will contain the individual templates. A template
(*.TPL) file is a binary file that must be created before storing a template.
Supply the filename, drive and folder. Click OK.
If you want this template file to automatically be available for all MPLAB IDE
projects, name the file auto.tpl. The templates in auto.tpl are always
available while you are editing source files in MPLAB IDE.
Part
1.6.2.4
Save Template File
When you edit, create, or delete a template, MPLAB Editor changes a copy of
the template in memory, which will be erased when you exit MPLAB IDE.
These changes are not saved to disk until you use the Edit > Template > Save
File command.
If you attempt to exit MPLAB IDE without saving the template file, you will be
prompted if you wish to save changes to the template (.TPL) file. Answer Yes.
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Figure 1.16: Create Template File Dialog
MPLAB® IDE User’s Guide
1.6.2.5
Insert Template
The Edit > Template > Insert command inserts an existing individual template
into a source file so that it can be used in application development. Before you
can insert the template, the file in which it resides must already be attached in
MPLAB IDE (see Section 1.6.2.1).
Position the cursor at the location in your source file where you want to insert
the template text. Select Edit > Template > Insert, select the template file that
contains the template, select the individual template you wish to insert, and
click OK.
Figure 1.17: Insert Template Dialog
1.6.2.6
Edit Template
To change a template in a template file, use the Template > Edit command,
select the template file and individual template you wish to modify, and click
OK. The template file must already be attached in MPLAB IDE (see
Section 1.6.2.1) in order for you to edit one of the files it contains.
When you select a template, MPLAB Editor places it in an edit window. The
window is the same as for a normal text file, but the caption shows that it is
actually a template. After editing the template use the Edit > Template > Store
command to update the template.
Figure 1.18: Edit Template Dialog
DS51025E-page 124
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MPLAB IDE Toolbar and Menu Options
1.6.2.7
New Template
Once you have created the .TPL file that will contain your templates, create
the source and/or text content for the individual templates. You may wish to
use the MPLAB IDE “canned” templates instead of creating your own from
scratch.
Use the Edit > Template > New command to create a template. MPLAB Editor
opens an edit window whose caption displays that it is a template.
To create your own source, simply type the text in the untitled template
window.
To use one of the MPLAB IDE template files, open the MPLAB IDE template
file in MPLAB\Templates\Code or MPLAB\Templates\Object. Select the
text you wish to copy (or use Edit > Select All), and then copy and paste it into
the untitled template window using the Edit > Copy and Edit > Paste
commands.
You may wish to insert marks into your template to indicate any custom
source code or text that developers will have to complete (see
Section 1.6.2.11). When you are through creating your template, be sure to
save it using the Edit > Template > Store or Edit > Template > Store Template
As commands (see Sections Section 1.6.2.8 and Section 1.6.2.9).
1.6.2.8
Store
 2001 Microchip Technology Inc.
Because the Store command only writes to memory, the changes
will be discarded when you exit MPLAB IDE. To save your template
changes for future use, use Edit > Template > Save File. When you
exit MPLAB IDE, you may be prompted if you wish to save changes
to the template (.TPL) file. Answer Yes.
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Select Edit > Template > Store to store a template in the template file. This
command overwrites the previous version of the template in the template file.
Note:
Part
MPLAB® IDE User’s Guide
1.6.2.9
Store As
Once you are through creating the template and inserting marks, use the Edit
> Template > Store As command to store the individual template source
code/text in the template file. You can also use this command to save the
changes to a new individual template file with a different name (for example,
to create a variation of the original template source/text).
Select Edit > Template > Store As, select the template file, specify the
template name, and click OK. If you select the name of an existing template,
this command overwrites the previous template’s contents. MPLAB Editor
confirms before executing this command.
Note:
Because the Store As command only writes to memory, the
changes or additions will be destroyed when you exit MPLAB IDE.
To save your template changes for future use, use Edit > Template
> Save File. When you exit MPLAB IDE, you may be prompted if
you wish to save changes to the template (.TPL) file. Answer Yes.
Figure 1.19: Store Template Dialog
DS51025E-page 126
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.6.2.10 Delete Template
To delete a template from a template file, use the Edit > Template > Delete
command. Select the template file containing the individual template you wish
to delete, select the individual template, and click OK. The template must
already be attached in MPLAB IDE (see Section 1.6.2.1) in order for you to
select it for deletion.
Note:
The Delete command only deletes the template from memory. To
permanently remove the template from the template file, use Edit >
Template > Save File. When you exit MPLAB IDE, you may be
prompted if you wish to save changes to the template (.TPL) file.
Answer Yes.
Part
1.6.2.11 Insert Template Mark
While you are creating your template, you may wish to insert marks to indicate
locations where developers will have to customize or insert special code for
their application.
Position the cursor at each location in the template that developers will need
to add their code and select Edit > Template > Insert Mark to insert marks
(<???>) at these locations. These marks will appear in their source file to
facilitate the developers’ work.
1.6.2.12 Find Template Mark
After you have inserted the template as described in Section 1.6.2.5, use the
Edit > Template > Find Mark command to search for template marks. As
described in the previous section, template marks identify locations where
you will want to customize or insert special code for your application. Enter
the desired text in place of each mark.
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DS51025E-page 127
MPLAB IDE
Reference
Figure 1.20: Delete Template Dialog
MPLAB® IDE User’s Guide
1.6.3
Text Options
This menu shows a list of text-related commands.
1.6.3.1
Transpose – Ctrl+T
Select Edit > Text > Transpose to transpose the character to the right of the
cursor and the character to the left of the cursor. This command has no effect
if the cursor is positioned at the start or end of a line.
1.6.3.2
Uppercase
Select Edit > Text > Uppercase to change all lowercase characters in the
currently highlighted text to uppercase characters.
1.6.3.3
Lowercase
Select Edit > Text > Lowercase to change all uppercase characters in the
currently highlighted text to lowercase characters.
1.6.3.4
Indent
To indent a single line, place the cursor anywhere within it and select Edit >
Text Indent. The MPLAB Editor moves the entire text of the line to the right by
one tab stop. The MPLAB Editor indents all highlighted lines. If no lines are
highlighted, the MPLAB Editor indents only the line that the cursor is in.
1.6.3.5
Unindent
To un-indent a single line, place the cursor within it and select Edit > Text
UnIndent. The MPLAB Editor moves the text left by one tab stop. The MPLAB
Editor does not alter a line that does not start with either a tab or a space.
Lines that do not start with white space are not affected.
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MPLAB IDE Toolbar and Menu Options
1.7
Debug Menu
The Debug menu contains all the options you would use when debugging
your code.
1.7.1
Run
The Run menu options allow you to control the execution of your firmware in
the target processor.
1.7.1.1
Run (F9)
Debug > Run > Run takes the processor out of the halt state and puts the
processor into execution until a break point is encountered or until you halt the
processor.
Execution starts at the current program counter (as displayed in the status
bar). The current program counter location is also highlighted in the Program
Memory window. While the processor is running, the Step and Run buttons
are disabled.
1.7.1.2
Reset (F6)
Part
1.7.1.3
Halt (F5)
Debug > Run > Halt forces the processor into the halt state. The Program
Counter is stopped and the processor status information is updated.
1.7.1.4
Halt Trace (Shift+F5)
Debug > Run > Halt Trace halts the trace buffer from capturing data but
allows the processor to continue running. Refer to your emulator
documentation for more information on Halt Trace.
1.7.1.5
Animate
Debug > Run > Animate causes the simulator to actually execute single steps
while in run mode, updating the values of the registers as it runs.
Use Animate mode to view the changing registers in the Special Function
Register window or in the Watch windows. Animate mode runs slower than
the Run function, but allows you to view changing register values.
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Debug > Run > Reset issues a RESET sequence to the target processor. This
issues a MCLR to reset the Program Counter to the RESET vector. If the
processor is running it will continue running from the RESET vector address.
MPLAB® IDE User’s Guide
1.7.1.6
Step (F7)
Debug > Run > Step single steps the processor. This command executes one
processor instruction (single or multiple cycle instructions) and then puts the
processor back into halt state. After execution of one instruction, all the
windows are updated with the current state of the processor. When the
processor runs in real-time, MPLAB IDE ignores the Step button.
1.7.1.7
Step Over (F8)
Select Debug > Run > Step Over to execute the instruction at the current
program counter location. At a call instruction, Step Over executes the called
subroutine, and halts at the address following the call.
1.7.1.8
Update All Registers
Debug > Run > Update All Registers updates all registers for the current
instruction.
1.7.1.9
Change Program Counter
Debug > Run > Change Program Counter allows you to change the current
program counter.
Figure 1.21: Change Program Counter Dialog
PC
Enter desired Program Counter address.
Change Click Change to change to the new program counter address.
The processor must be halted for the change to take effect.
Close Exits from the Change Program Counter dialog box.
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MPLAB IDE Toolbar and Menu Options
1.7.2
Execute
The Execute menu options allow you to control the polled execution of your
firmware in the target processor.
1.7.2.1
Execute an Opcode
Select Debug > Execute > Execute an Opcode to execute a single instruction
or a series of instructions without modifying the object code or program
memory. After executing the instruction, you may resume executing from the
current program memory location. Executing an opcode is not like single
stepping through code; executing an opcode doesn’t increment timers, cause
cycle counts to occur, etc.
Note:
Two-word instructions in the PIC18CXXX family cannot be executed in this manner.
Part
Figure 1.22: Execute an Opcode Dialog
Execute
1.7.2.2
Click Execute to execute an instruction without modifying the
current location of the program counter.
Conditional Break
Select Debug > Execute > Conditional Break to display a dialog box that
performs an automated single stepping of the processor. Execution starts
when you click Start and continues until the condition presented in the dialog
is met or until you click Halt.
Note:
The Conditional Break dialog is not available in MPLAB ICE 2000
or MPLAB ICD development modes. For MPLAB ICE 2000, refer
to the Complex Trigger dialog for this functionality.
For additional information on conditional breaks, see Section 2.8.
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Opcode Enter the instruction as an opcode (in HEX digits) or enter a
symbolic instruction (such as ADDWF 0x19). Click the Opcode
list to display the last eight commands. After executing a command, MPLAB IDE highlights the command so you can type in a
new instruction. (MPLAB IDE tracks the instructions you enter so
you don't get two copies of the same instruction in the opcode
list.)
MPLAB® IDE User’s Guide
Figure 1.23: Conditional Break Dialog
Single Cycle
DS51025E-page 132
Checks condition at every instruction. The Single Cycle
option samples conditions after every instruction, allowing
you to catch a particular condition.
Multiple
Cycles
Checks condition only at user-defined break points. The
Multiple Cycles option runs at real time except for the halt at
break points. This option allows interrupts to be serviced.
Update
Display
Executes the conditional break but does not update the disassembled code in the window. MPLAB IDE stores the last
1000 lines.
Conditions
The condition that you set up is tested on any register location and an 8-bit constant value that you enter. You can test
for the following conditions:
User Halt When processor is running, click Halt to stop the
processor.
Number of Cycles Enter the number of cycles in the Value
box.
Register Value Conditions
RAM Addr Data Value == Equals Value Entered
RAM Addr Data Value < > Not Equals Value Entered
RAM Addr Data Value > Greater Than Value Entered
RAM Addr Data Value < Less Than Value Entered
RAM Addr Data Value >= Greater or Equal Value Entered
RAM Addr Data Value <= Less or Equal Value Entered
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
If the tested condition is true, execution stops before executing the next instruction. The next instruction in the Program Memory window will be highlighted.
Caution: All register values are treated as 8-bit unsigned
values. Therefore, the condition <0 will never be true.
Reg Register Condition. Enter a RAM address location
where you want to test against the data value at that location. The location that you enter must be a file register location.
Value Enter an 8-bit value in the Value box that you want to
test against.
Trace Data
Trace Data samples specific registers at each time the processor is halted and displays the register data in the list.
Add, Remove, Edits the list of data variables sampled at each break point.
Remove All
Start
Starts execution and continues to execute single steps until
the condition is met or until you press the Halt button.
Halt
Halts execution of the Conditional Break.
Reset
Save Buffer
Opens the Break Point Settings dialog.
Opens the Save File dialog to save information from the list
box in a *.TB file.
Figure 1.24: ∗.TB File
Close
 2001 Microchip Technology Inc.
Exits the Conditional Break dialog.
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Reference
Break
Settings
Part
Resets the processor.
MPLAB® IDE User’s Guide
1.7.3
Simulator Stimulus
MPLAB SIM simulator functions allow you to set up regular clock stimulus
signals and allow the simulator to respond to events from files on your PC.
The files can be written with the MPLAB Editor or any other suitable text editor
or word processor and should be saved in the same folder as the current
project.
Simulator functions are:
• Asynchronous Stimulus
• Pin Stimulus
• Clock Stimulus
• Register Stimulus
For a detailed discussion of simulator stimulus, see Section 2.9.
1.7.4
Center Debug Location
Select Debug > Center Debug Location to move the current program counter
to the middle of the debugging window.
This function works on the Source Code Window, the Program Memory
Window, and the Absolute Listing Window.
1.7.5
Break Point Settings
Select Debug > Break Settings to set break points and break point qualifiers.
For more functional information on break points, see Section 2.7.
Note:
If execution doesn’t halt at the break point, select Options > Development Mode and click the Break Options tab. Make sure that
Global Break Enable is selected (check marked).
Figure 1.25: Break Point Settings Dialog
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 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
Operational Notes
• If execution doesn’t halt at the break point, select Options>Development Mode and click the Break Options tab. Make sure that Global
Break Enable is selected (checkmarked).
• When using MPLAB ICD, only one address can be set to a break point
in the Break Point Settings dialog.
• If a software break point is set, then checksums calculated on program
memory at run time will be incorrect. Programmer checksums are not
affected.
• Manually resetting the timestamp when using software break points will
cause the timestamp to be incorrect.
1.7.5.1
General Break Point Settings
You can define up to 16 named break point ranges. After entering a break
point title, start address, and end address (optional), click Add to accept the
break point range definition.
1.7.5.2
Saving Break Point Settings
Part
Break points are saved as part of the project.
Enter a unique title (up to 32 characters) for each break
point range. MPLAB IDE accepts the underscore character
but does not allow spaces. MPLAB IDE automatically enters
a default, unique title if you choose not to enter a title. The
break point range requires a title.
Start, End
Enter a Start and End address in HEX or as a label for the
break point range. The address range is restricted to the
valid address range of the target processor. You can enter
the start address and MPLAB IDE will fill in the same end
address for a break point on a single location (rather than a
range).
You can enter the Start and End values as addresses or
labels. If you use labels, MPLAB IDE allows you to modify
the labels by using offsets: “MAIN+2” or “EXECTIMR-10.”
When you use labels and recompile a project (and the label
moves due to the compilation) MPLAB IDE assigns the
break points to the new address range.
You can use an existing break point range item as the starting point for entering a new break point range. Click on a
desired item in the list box. Type in a new title. Then click
Add to accept the defined break point range.
 2001 Microchip Technology Inc.
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Reference
Title
MPLAB® IDE User’s Guide
Break Point
List
The list box allows you to enter up to 16 break point ranges.
On selecting a range, the break point Settings dialog box
displays Start, End, and Title to allow you to edit the start
and end address. The list box contains the following elements:
Title
Start
End
Enable/Disable
Qualifier
Figure 1.26: Break Point List
Enable/Disable This switch enables/disables the break point
range in program memory.
Qualifier Qualifier point designator. When a range item displays the letter q, the address range is a Pass Count
address.
Title, Start, End Click an item in the list box to display the
title, start, and end data. You can then edit the start and end
address or change the title to enter a new break point range.
Add Click Add to accept the selected range and add the range to
the list of ranges. Entering a range enables break points in
that range in program memory. Disabled break point ranges
will not clear break points included in other ranges.
Remove Removes the selected break point range. If an item is not
selected, Remove does nothing.
Remove All
Disable All
Disables all break point ranges.
Enable All
Enables all break point ranges.
Close
Help
DS51025E-page 136
Removes all break point ranges from the list.
Accepts your break point ranges and closes the Break Point
Settings dialog.
Displays this information.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.7.5.3
Break Point Qualifiers
This function applies only to the PICMASTER Emulator and Simulator
development modes.
1. Select a break point qualifier from the drop-down list.
2. Enter a pass count qualifier for the break point.
MPLAB IDE has a 16-bit Pass Counter that decrements by one on any
address match in program memory.
When the processor is in a Halt state, you can modify the count value in
the Break Point Settings dialog box. To set up the Pass Counter, first set
the desired address ranges and then load the counter with a desired count
value (up to 16 bits). When the counter decrements to zero, the emulator
will halt.
Note:
The pass counter does not automatically reset. You must select Set.
The Pass Counter decrements each time an event occurs. You can use
this feature to count the number of times an event happens.
Address is You can assign a Pass Count qualifier address to either
Qualifier break logic or trace logic. You must have an element in the
list selected. With an element selected, the dialog will
enable the Address is Qualifier check box.
Pass Count
Type in a pass count value. The pass count value defines
the number of times the program can pass a qualifier
address before halting the processor. Each time the program encounters an address that has been set as a qualifier, it decrements the pass count. When the pass count
reaches 0, it halts the processor.
Set Click Set to enter a pass count value. The displayed Pass
Count value does not download the value to the emulator’s
pass counter until you click Set.
 2001 Microchip Technology Inc.
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MPLAB IDE
Reference
When you check Address is Qualifier, you are assigning the
pass counter to all addresses in the selected range. Usually
it is useful to set only a single address for the pass counter.
After selecting Address is Qualifier, MPLAB IDE enables the
Pass Count Edit Box and the Set button. With the Pass
Count Edit Box enabled, you can set the pass counter to a
desired value (up to 65,534).
Part
MPLAB® IDE User’s Guide
1.7.6
Trace Settings
Select Debug > Trace Settings to display the Trace Point Settings dialog box
for defining up to 16 named trace point ranges. The Trace Point Settings
dialog is not available in MPLAB ICE 2000 or MPLAB ICD development
modes.
For more functional information on trace points, see Section 2.7.
Figure 1.27: Trace Point Settings Dialog
Note 1:
The pass counter qualifier address can be assigned to trace
logic or break logic.
2:
The Trace Point Settings dialog is not available in MPLAB ICE
2000 or MPLAB ICD development modes. The MPLAB ICE
2000 trace may be configured through the Complex Trigger dialog.
1.7.6.1
General Trace Settings
You can define up to 16 named trace point ranges. After entering a trace point
title, start address, and end address (optional), click Add to accept the trace
point range definition.
Note:
DS51025E-page 138
MPLAB ICD does not have trace capability.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.7.6.2
Saving Trace Point Settings
Trace points are saved as part of the project.
Title
Start, End
Enter a unique title (up to 32 characters) for each trace point
range. MPLAB IDE accepts the underscore character but
does not allow spaces. MPLAB IDE automatically enters a
default, unique title if you choose not to enter a title. The
trace point range requires a title.
Enter a Start and End address in HEX or as a label for the
trace point range. The address range is restricted to the
valid address range of the target processor. You can enter
the start address and MPLAB IDE will fill in the same end
address for a trace point on a single location (rather than a
range).
You can enter the Start and End values as addresses or
labels. If you use labels, MPLAB IDE allows you to modify
the labels by using offsets: “MAIN+2” or “EXECTIMR-10.”
When you use labels and recompile a project (and the label
moves due to the compilation) MPLAB IDE assigns the
trace points to the new address range.
 2001 Microchip Technology Inc.
DS51025E-page 139
MPLAB IDE
Reference
You can use an existing trace point range item as the starting point for entering a new trace point range. Click on a
desired item in the list box. Type in a new title. Then click
Add to accept the defined trace point range.
Part
MPLAB® IDE User’s Guide
Trace Point
List
The list box allows you to enter up to 16 trace point ranges.
On selecting a range, the Trace Settings dialog box displays
Start, End, and Title to allow you to edit the start and end
address. The list box contains the following elements:
Title
Start
End
Qualifier
Enable/Disable
Figure 1.28: Trace Point List
Enable/Disable This switch enables/disables the trace point
range in program memory.
Qualifier Qualifier point designator. When a range item displays the letter q, the address range is a Pass Count
address.
Title, Start, End Click an item in the list box to display the
title, start, and end data. You can then edit the start and end
address or change the title to enter a new trace point range.
Add Click Add to accept the selected range and add the range to
the list of ranges. Entering a range enables trace points in
that range in program memory. Disabled trace point ranges
will not clear trace points included in other ranges.
Remove Removes the selected trace point range. If an item is not
selected, Remove does nothing.
Remove All
Disable All
Disables all trace point ranges.
Enable All
Enables all trace point ranges.
Close
Help
DS51025E-page 140
Removes all trace point ranges from the list.
Accepts your trace point ranges and closes the Trace Point
Settings dialog.
Displays this information.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.7.6.3
Trace Point Qualifiers
This function applies only to the PICMASTER Emulator and Simulator
development modes.
1. Select a trace point qualifier from the drop-down list.
2. Enter a pass count qualifier for the trace point.
MPLAB IDE has a 16-bit Pass Counter that decrements by one on any
address match in program memory.
When the processor is in a Halt state, you can modify the count value in
the Trace Point Settings dialog box. To set up the Pass Counter, first set
the desired address ranges and then load the counter with a desired count
value (up to 16 bits). When the counter decrements to zero, the trace will
start.
Note:
The pass counter does not automatically reset. You must select Set.
The Pass Counter decrements each time an event occurs. You can use
this feature to count the number of times an event happens.
Address is You can assign a Pass Count qualifier address to either
Qualifier break logic or trace logic. You must have an element in the
list selected. With an element selected, the dialog will
enable the Address is Qualifier check box.
Pass Count
Type in a pass count value. The pass count value defines
the number of times the program can pass a qualifier
address before halting the processor. Each time the program encounters an address that has been set as a qualifier, it decrements the pass count. When the pass count
reaches 0, it halts the processor.
Set Click Set to enter a pass count value. The displayed Pass
Count value does not download the value to the emulator’s
pass counter until you click Set.
 2001 Microchip Technology Inc.
DS51025E-page 141
MPLAB IDE
Reference
When you check Address is Qualifier, you are assigning the
pass counter to all addresses in the selected range. Usually
it is useful to set only a single address for the pass counter.
After selecting Address is Qualifier, MPLAB IDE enables the
Pass Count Edit Box and the Set button. With the Pass
Count Edit Box enabled, you can set the pass counter to a
desired value (up to 65,534).
Part
MPLAB® IDE User’s Guide
1.7.6.4
Global Trace Point Environment Options
Trace All applies to the PICMASTER emulator and the simulator (MPLAB
SIM). Trace First Cycle Only and Trace Data Cycle Only apply to the
PICMaster emulator only.
Trace All
Valid for all PICmicro MCU devices. Lets you trace each
enabled trace address location. This option displays the
trace buffer exactly the way the processor fetches and executes instructions at each clock cycle.
Trace First
Cycle Only
Valid for all PICmicro MCU devices. Filters cycles from the
trace buffer of all extra forced NOP cycles (or data cycles)
of two-cycle instructions. This allows the trace buffer to display only the exact instruction flow sequence. Eliminating
extra cycles also conserves valuable trace buffer space and
provides more room to capture meaningful data.
Trace Data
Cycle Only
Valid for PIC17CXXX devices only. Captures only the data
cycle (second cycle) of the two-cycle table write (TABLWT)
and table read (TABLRD) instructions. Use this feature to
read an array of tables, or to capture data memory values
from a desired RAM location and table write the values to
an unused program memory location in real-time for debugging purposes.
To save captured data cycles into a file for plotting or analysis, use File >
Export > Export Trace Buffer.
A simulator trace memory buffer looks like Figure 1.29. For information on
emulator display, see the documentation for that emulator.
Figure 1.29: Trace Memory Window
DS51025E-page 142
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.7.7
Trigger In/Out Settings
Select Debug > Trigger In/Out Settings to set trigger input and output. This
dialog applies to the MPLAB ICE 2000 and PICMASTER emulators.
Figure 1.30: Trigger In/Out Settings Dialog – MPLAB ICE 2000
Part
For more information on setting these emulator options, see either the
MPLAB ICE In-Circuit Emulator User’s Guide (DS51159) or the PICMASTER
User’s Guide (DS51037).
 2001 Microchip Technology Inc.
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MPLAB IDE
Reference
Figure 1.31: Trigger In/Out Settings Dialog – PICMASTER Emulator
MPLAB® IDE User’s Guide
1.7.8
Trigger Output Points
Select Debug > Trigger Output Points to set trigger output for the
PICMASTER emulator.
Figure 1.32: Trigger Out Point Settings Dialog
For more information on setting these emulator options, see the PICMASTER
User’s Guide (DS51037).
1.7.9
Clear All Points
Select Debug > Clear All Points to clear all break and trace points.
Figure 1.33: Clear All Points Message Box
DS51025E-page 144
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.7.10
Complex Trigger Settings
Select Debug > Complex Trigger Settings to set a complex trigger for the
MPLAB ICE 2000 emulator.
Part
For more information on setting these emulator options, see the MPLAB ICE
In-Circuit Emulator User’s Guide (DS51159).
1.7.11
Code Coverage
Select Debug > Code Coverage to enable/disable code coverage for the
MPLAB ICE 2000 emulator.
Figure 1.35: Code Coverage Dialog
For more information on setting these emulator options, see the MPLAB ICE
In-Circuit Emulator User’s Guide (DS51159).
 2001 Microchip Technology Inc.
DS51025E-page 145
MPLAB IDE
Reference
Figure 1.34: Complex Trigger Settings Dialog
MPLAB® IDE User’s Guide
1.7.12
Clear Program Memory (Ctrl+Shift+F2)
Select Debug > Clear Program Memory to set all program memory bits to
one.
Figure 1.36: Clear Program Memory Message Box
1.7.13
System Reset (Ctrl+Shift+F3)
Select Debug > System Reset to reset the entire emulator system including
the MPLAB ICE 2000 emulator hardware (if connected), software and the
target processor. System Reset performs the same initialization that is
performed when MPLAB IDE is first entered.
DS51025E-page 146
Note 1:
To perform a processor Reset (MCLR), select Debug > Run >
Reset.
2:
Always power down the emulator pod when changing probes or
processor modules, and then perform a system Reset. If you do
not perform a system Reset, MPLAB IDE will not be properly
configured for the new probe or processor module.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.7.14
Power-On-Reset (Ctrl+Shift+F5)
Select Debug > Power-On-Reset to display the Power-On-Reset dialog box
for selecting a POR option.
Figure 1.37: Power-On-Reset Dialog
Power-On-Reset allows you to fill RAM locations with random or determined
values.
Note:
Power-On-Reset is implemented on a device by tying the MCLR pin
to VDD. The POR does not necessarily reset all SFRs, especially
for the emulator.
The Power-On-Reset dialog can be used for the following functions:
• Randomize registers that have an unknown value at POR.
• Fill registers with a value, or clear registers.
• Set registers to the POR Condition shown in the Microchip Databook for
the respective part (MPLAB SIM simulator only). The Fill with Value
POR function will not affect the registers that have specifically defined
reset values.
• Save current POR values to a file.
• Load POR values from a file.
Note:
 2001 Microchip Technology Inc.
Program memory and break points are undisturbed when using the
POR dialog.
DS51025E-page 147
Part
MPLAB IDE
Reference
Often, uninitialized registers can lead to a program malfunction that is hard to
track down. POR will simulate the action of randomizing registers when the
application first starts up. If the application misbehaves sometimes, the
Power-On-Reset function may help you isolate the problem.
MPLAB® IDE User’s Guide
Randomize
Select Randomize to enter random values into registers
that have an unknown value at POR.
Fill with Value
Type a fill value in the Enter Value box that you want to
enter into registers at POR.
Last Values
Select Last Values to enter the last randomized or filled
values into the device at POR.
Power-On-Reset Click Power-On-Reset to reset and set selected register
values.
Cancel
Save As
Values from File
DS51025E-page 148
Click Cancel to close the Power-On-Reset dialog box
without performing a POR.
Opens a dialog box to enter the name of a file (*.POR) to
save Power-On-Reset settings.
To load data values from a file, click Values from File
and then click Select to open a dialog box to enter the
name of an *.POR file containing values to load at
power-on-reset.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.8
Programmer Menu
To select a programmer, open the Select Programmer dialog from the
Options > Programmer Options > Select Programmer menu item. Once you
change programmers, MPLAB IDE will shut down. The programmer change
will take effect when you restart MPLAB IDE. A menu specific to the
programmer you selected will appear on the menu bar.
For more information on the operation of individual programmers, refer to the
documentation for that programmer.
PICSTART Plus Programmer Menu
Enable/Disable
Programmer
Enable or disable the programmer. Once the programmer is enabled, this menu item changes to Disable
Programmer.
Program/Verify
Opens the Program/Verify dialog which allows you to
program the device selectively (e.g., program part of
program memory, or only configuration bits) or to verify
that the device was programmed properly.
Read Device Opens the Read Device dialog which allows you to read
the device selectively (e.g., part of program memory, or
only configuration bits of the device).
Blank Check All
Blank Check OTP
This function is intended for use with OTP devices that
come with factory programmed configuration bits.
Before using this function, set the displayed configuration bits to match the factory programmed settings. The
function verifies that all program memory bits are set to
“1” and that the configuration bits match the settings displayed in the Configuration Bits window.
Display Error Log
Displays the error log on the screen if any errors occur.
The error log is generated when programming or verification results in a mismatch of device data and data in
the Program Memory window and the Programmer Status dialog.
Erase Program Sets all bits in the MPLAB IDE Program memory, CaliMemory bration memory, and Data memory (if applicable) to “1.”
 2001 Microchip Technology Inc.
DS51025E-page 149
MPLAB IDE
Reference
Checks that the device is completely blank (all bits are
set to a “1”). This will also check that all configuration
bits are set to a “1” (unprogrammed state).
Part
MPLAB® IDE User’s Guide
Erase
Configuration Bits
Sets all available configuration bits and ID location bits
to “1.” If you then reload your HEX file which has configuration data or your project which has configuration bits
defined, these values will change in the Programmer
Status dialog. You can use this to override the values in
your code by selecting this after you have loaded your
HEX file or rebuilt your project.
Reset
Programmer
Resets the PICSTART Plus hardware and reestablishes
RS-232 communications. Use this option if power has
been disconnected from the programmer. This option
does not reset programming information in the Program
Memory window, configuration bits, or IDs.
PRO MATE Programmer Menu
Enable/Disable
Programmer
Enable or disable the programmer. Once the programmer is enabled, this menu item changes to Disable
Programmer.
Program/Verify
Opens the Program/Verify dialog which allows you to
program the data as shown in the Program Memory window or verify that the data in the device in the
PRO MATE socket matches data in the Program Memory window. You can select to program or verify only the
program memory or other memory areas on the target
device.
Read Device Opens the Read Device dialog which allows you to read
the program and configuration bits of the device. You
can set the program memory range and the other read
options.
Blank Check All
DS51025E-page 150
Checks that the device is completely blank (all bits are
set to a “1”). This will also check that all configuration
bits set to a “1” (unprogrammed state).
Blank Check OTP
This function is intended for use with OTP devices that
come with factory programmed configuration bits.
Before using this function, set the displayed configuration bits to match the factory programmed settings. The
function verifies that all program memory bits are set to
“1” and that the configuration bits match the settings displayed in the Configuration Bits window.
Display Error Log
When you have programmed a device or verified a
device, an error window will show you data from memory in the device that do not match the corresponding
memory in MPLAB IDE.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
Erase Program Sets all bits in the MPLAB IDE Program memory, CaliMemory bration memory, and Data memory (if applicable) to “1.”
Erase
Configuration Bits
Reset Voltages
Transfer to
PRO MATE
Transfer from
PRO MATE
Generate
SQTPSM File
Load SQTP File
Sets VDDMIN, VDDMAX, and VPP to their default values
for the selected device.
Transfers device information to the PRO MATE programmer.
Transfers device information from the PRO MATE programmer.
Generate an SQTP file for device serialization.
Part
Load an SQTP file from disk.
Download the latest version of the operating system to
the programmer.
Establish Establishes or reestablishes RS-232 communications
Communications with the device programmer. Use this if power has been
disconnected from the programmer. This does not reset
programming information in the Programmer Status Dialog, configuration bits, or IDs.
 2001 Microchip Technology Inc.
DS51025E-page 151
MPLAB IDE
Reference
Download
PRO MATE
Operating System
Sets all available configuration bits and ID location bits
to “1.” If you then reload your HEX file which has configuration data or your project which has configuration bits
defined, these values will change in the Programmer
Status dialog. You can use this to override the values in
your code by selecting this after you have loaded your
HEX file or rebuilt your project.
MPLAB® IDE User’s Guide
1.9
Options Menu
1.9.1
Development Mode Options
Select Options > Development Mode to open a dialog box that allows you to
change settings in the following areas:
• Tools
• Ports
• Clock
• Memory
• Configuration
• Power
• Pins
• Break options
1.9.1.1
Tools
Select Options > Development Mode and click the Tools tab to change the
current Development Mode setting and select a processor module or device.
Click Details and double-click the highlighted item in the list area to view
complete information on the inherent limitations for your selected device.
If you want to see which device your emulator is currently configured for,
make sure that the correct tool (MPLAB ICE 2000 or PICMASTER emulator)
is selected and click Inquire. The device will appear in the Processor box.
If you would like to save all of the changes you have made in the
Development Mode dialog so far, click Apply.
DS51025E-page 152
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
Figure 1.38: Development Mode Dialog
None (Editor
Only)
Selects the MPLAB SIM simulator mode.
Processor: Selects the processor that you are simulating.
MPLAB ICE
Emulator
Selects the MPLAB ICE 2000 Emulator mode (if connected) and displays Ice on the Status Bar.
Processor: Selects the processor that you are emulating.
PICMASTER
Emulator
Selects the PICMASTER Emulator mode (if connected)
and displays Em on the Status Bar.
Processor: Selects the processor that you are emulating.
ICEPIC
Emulator
Selects the ICEPIC Emulator (if connected).
Processor: Selects the processor that you are emulating.
MPLAB ICD
Debugger
Selects the MPLAB ICD in-circuit debugger (if connected)
and displays ICD on the Status Bar.
Processor: Selects the processor that you are debugging.
Cancel
Click Cancel to cancel your selection and exit this display.
Click OK to accept your selection and exit this display.
DS51025E-page 153
Part
MPLAB IDE
Reference
MPLAB SIM
Simulator
OK
 2001 Microchip Technology Inc.
Selects the Editor Only mode and displays EO on the Status Bar. In Editor Only mode, all emulator and simulator
functions are disabled. You can only edit, compile, and
perform project management operations.
Processor: Selects the processor that you are using for
development.
MPLAB® IDE User’s Guide
1.9.1.2
Device Ports
Select Options > Development Mode and click the Ports tab to set the port for
current Development Mode tool operation.
If you would like to save all of the changes you have made in the
Development Mode dialog so far, click Apply.
(Development Mode) Select the port over which the tool will communiPort cate with the PC in this development mode. The
items in this box are specific to the development
mode you have selected on the Tools tab of the
Development Mode dialog.
MPLAB ICE 2000 Emulator:
Figure 1.39: Ports Dialog – MPLAB ICE 2000
LPT Port Choose the LPT port you will use to communicate
with MPLAB ICE 2000 (e.g., LPT1). The LPT port
is also called the parallel or printer port. We recommend that your LPT port be configured for bidirectional operation (ECP preferred; EPP or PS/2 if no
ECP). This may require changing the LPT configuration in your BIOS.
Force LPT Check this item to force the MPLAB ICE 2000 to
Compatibility Mode communicate in compatibility mode rather than the
usual bidirectional mode. The current operational
mode appears to the right of this item.
DS51025E-page 154
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
LPT Port Information Click Query Port Info to view complete information on your PC’s LPT port configuration.
For more information on MPLAB ICE 2000 communications, refer to the
MPLAB ICE In-Circuit Emulator User’s Guide (DS51159).
WARNING
Do not select the MPLAB ICE emulator mode if
any other device (e.g., printer, scanner, zip drive)
is installed on the parallel port or permanent
damage to that device may result. See the
MPLAB ICE In-Circuit Emulator User’s Guide
(DS51159) for more details.
PICMASTER Emulator:
Part
MPLAB IDE
Reference
Figure 1.40: Ports Dialog – PICMASTER Emulator
I/O Port Select the I/O Port address that matches the base
address your PICMASTER PC Interface Card.
For more information on PICMASTER emulator communications, refer to the
PICMASTER User’s Guide (DS51037).
 2001 Microchip Technology Inc.
DS51025E-page 155
MPLAB® IDE User’s Guide
ICEPIC Emulator:
Figure 1.41: Ports Dialog – ICEPIC Emulator
Com Port
Baud Rate
Select the Com Port that the ICEPIC emulator is
connected to.
Select the baud rate at which data will travel over the
com port.
For more information on ICEPIC emulator communications, refer to the
ICEPIC User’s Guide (DS51103).
DS51025E-page 156
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.9.1.3
Clock Frequency
Select Options > Development Mode and click the Clock tab to set the clock
frequency. You can set the frequency in MHz, kHz, and Hz. Refer to the
specific device’s data sheet to determine the supported frequency range.
If you would like to save all of the changes you have made in the
Development Mode dialog so far, click Apply.
Part
1. Select the type of oscillator for an emulation system. The available oscillator selections are dependent on the selected processor.
2. Select Use Target Board Clock if appropriate for your MPLAB ICE 2000
application.
3. Enter the desired frequency and select MHz, kHz, or Hz. Refer to the
specific device's data sheet to determine the supported frequency
range.
Note:
The Actual Frequency is for use with MPLAB ICE 2000 only.
4. Click Apply to accept the new setting.
 2001 Microchip Technology Inc.
DS51025E-page 157
MPLAB IDE
Reference
Figure 1.42: Processor Clock Dialog
MPLAB® IDE User’s Guide
1.9.1.4
Memory
Select Options > Development Mode and click the Memory tab to set the
memory configuration being used.
Note:
This option is not available for all processors.
If you would like to save all of the changes you have made in the
Development Mode dialog so far, click Apply.
Figure 1.43: Memory Dialog
DS51025E-page 158
Memory Mapped
Peripheral Range
Enable/Disable the memory mapped peripheral range,
and specify the starting and ending high byte address. If
the End Address High Byte is set to 0xFF, the program
counter in the MPLAB IDE will get stuck at 0xFFFE
while operating in external microcontroller mode. The
highest value that can be entered for the high byte is
0xFE. To recover, change the high byte from 0xFF to
0xFE or lower, power the emulator pod off and on, and
select Debug>System Reset.
Off-Chip Memory
Select off-chip memory From Target Board or Supplied
By Emulator.
Note: The Processor Mode (Options> Development
Mode, Configuration tab) must be set to Microprocessor
or Extended Microcontroller in order for off-chip memory
to be used.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
Disable Long
Writes
1.9.1.5
Disable/enable long writes. It is possible to use the table
write instructions to trace values in Data RAM with the
PIC17C42; however, if the table write is to internal memory, you should select Disable Long Writes. If this is not
selected, then MPLAB IDE will wait for an interrupt to
exit the long write. These table write instructions should
be removed before a device is programmed.
Configuration
Select Options > Development Mode and click the Configuration tab to
change the settings for the watchdog timer and processor mode.
If you would like to save all of the changes you have made in the
Development Mode dialog so far, click Apply.
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Figure 1.44: Configuration Dialog
Watchdog Timer
 2001 Microchip Technology Inc.
Enable/disable the Watchdog Timer.
None: Disables the Watchdog Timer.
WDT Chip Reset Enable: Resets the processor when
the Watchdog Timer times out.
WDT Break Enable: Halts the processor when the
Watchdog Timer times out.
In addition to setting the Watchdog Timer, be sure to set
the OPTIONS register according to the device’s data
sheet.
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WDT Prescale For PIC17CXXX and PIC18CXXX processors: If you are
using the Watchdog Timer, remember to set its prescaler. This option is used for selecting the prescaler
value.
For all other processors, the WDT prescaler is set under
software control. For PIC12CXXX, PIC14000 and
PIC16CXXX devices, this is set in the OPTIONS register. See your device data sheet for more information.
Processor Mode
DS51025E-page 160
Select the processor mode, if available for the selected
processor. The processor mode must be set to Microprocessor or Extended Microcontroller in order for offchip memory to be used. Refer to individual data sheets
for more information on each mode.
Microcontroller: Accesses internal program memory
only.
Microprocessor: Accesses external program memory
only.
Extended Microcontroller: Accesses internal and external program memory.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.9.1.6
Power
Select Options > Development Mode and click the Power tab to set the
processor’s power source and voltage.
If you would like to save all of the changes you have made in the
Development Mode dialog so far, click Apply.
Part
Processor Power
For an emulator system, state whether the processor gets its power From Emulator or From Target
Board.
Low Voltage This line indicates whether low voltage is enabled
Enabled/Disabled or disabled. The emulator determines whether low
voltage is enabled or disabled.
 2001 Microchip Technology Inc.
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Figure 1.45: Power Dialog
MPLAB® IDE User’s Guide
1.9.1.7
Pins
Select Options > Development Mode and click the Pins tab to adjust pin
settings.
If you would like to save all of the changes you have made in the
Development Mode dialog so far, click Apply.
Figure 1.46: Pins Dialog
MCLR Enable
CCP2 muxed with RB3
OSC switch enable
Enable or disable Master Clear.
Mux CCP2 with RB3 or RB3 as I/O.
Enable or disable oscillator switch.
These options are only available for some devices. If they are not available,
they will be grayed-out.
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MPLAB IDE Toolbar and Menu Options
1.9.1.8
Break Options
Select Options > Development Mode and click the Break Options tab to
change the global break and trace point environment options.
If you would like to save all of the changes you have made in the
Development Mode dialog so far, click Apply.
Part
The following options apply to all development modes except Editor Only,
except as otherwise indicated.
Clear Break When selected, removes all break points, trace points, trigPoints on ger points, and pass count addresses on download to the
Download emulator.
 2001 Microchip Technology Inc.
Global Break
Enable
When selected, enables all break points. If Global Break
Enable is not selected, then all break points are disabled.
Global Break Enable is also available from the Status Bar
Disable Stack
Overflow
Warning
When selected, prevents a warning message from appearing if a stack overflow or underflow occurs. If you want to
see a warning in the event of a stack overflow or underflow,
clear this switch.
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Figure 1.47: Break Options Dialog
MPLAB® IDE User’s Guide
Freeze
Peripherals
on Halt
Note:
This option freezes peripherals (timers, ports, PWM, etc.)
on a halt operation. By default, this option is on so that you
will get a true picture of the status. When Freeze Peripherals on Halt is on, you can write to a port after a halt, but you
cannot read from the port until you perform a single-step.
You may wish to turn this option off if a peripheral must continue to run after a halt. This option facilitates troubleshooting of timers in situations when timers are continuing to get
set/reset and cleared after a halt.
If Freeze Peripherals On Halt is selected, the I/O port bits in the
SFR or the watch windows will not update when single stepping.
Break on This option is not available for the MPLAB ICE 2000 or the
Trace Buffer ICEPIC emulator.
Full When selected, causes the processor to halt when the trace
buffer is full. The trace buffer is full when it captures 8K
instructions/cycles. For MPLAB ICE 2000, this function is
available through the Complex Trigger dialog.
Stack Overflow Break
Enable
DS51025E-page 164
When selected, causes the processor to halt as soon as a
stack overflow or underflow occurs. If you do not wish to
stop processing specifically for a stack overflow or underflow, clear this switch. The setting of Disable Stack Overflow
Warning determines whether a message will be displayed
due to the overflow or underflow.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.9.2
Window Setup
1.9.2.1
Save Setup
Select Options > Window Setup > Save Setup to save the current
configuration to a file. The default extension of the configuration file is *.CFG.
Figure 1.48: Save Setup as Default Message Box
Save Setup only saves the currently open windows—not the break, trace, and
trigger points.
Yes
No If you answer No, MPLAB IDE displays the Save Configuration
dialog box. At this point, enter the name and path where you
want to save the setup.
Cancel
 2001 Microchip Technology Inc.
Select Cancel to exit the Save Configuration dialog without saving.
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If you answer Yes to the question, “Do you want to save the current configuration as the default?” MPLAB IDE will save the current configuration as the default user configuration that MPLAB
IDE loads during start-up.
MPLAB® IDE User’s Guide
1.9.2.2
Load Setup
Select Options > Window Setup > Load Setup to load a configuration setup
from a file previously stored by the Options > Window Setup > Save Setup
command. Select the file that you want to read from the dialog box and press
Enter. The default extension of the setup file is *.CFG.
Figure 1.49: Load Setup Dialog
Note:
1.9.2.3
Setup.cfg is a configuration file used by the PRO MATE II programmer when programming Secure Data Product devices. Do not
overwrite this file.
Default Configuration
Select Options > Window Setup > Default Configuration, to load the default
user configuration the next time you start MPLAB IDE.
1.9.3
Current Editor Modes
Select Options > Current Editor Modes to configure the editor modes that
apply to the current window.
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MPLAB IDE Toolbar and Menu Options
Figure 1.50: Current Editor Modes Dialog
Part
Display/Input Modes
 2001 Microchip Technology Inc.
Auto Indenting
Indents new lines to the same level as the preceding line.
Strip Trailing Spaces
Removes white space from the end of a line whenever you press Enter.
Show Line Numbers
Displays line numbers in the window.
Overwrite
Overwrites the characters under the cursor with the
characters you type. Otherwise MPLAB Editor
inserts characters at the cursor.
Language
Select from this list to associate a language (such
as C or Pascal) with the file type. This associates
certain formatting settings (like indenting) with files
of the type you are setting modes for.
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These settings control how text is displayed in the window and any special
actions MPLAB Editor takes as you type.
MPLAB® IDE User’s Guide
Screen Formatting
These settings affect tabs and text wrapping.
Tab Size
Defines the width of a tab character.
Soft Tabs Inserts spaces instead of tabs when Soft Tabs is
checked.
Wrap Enabled To use line wrapping, place a checkmark to the left
Wrap Column of Wrap Enabled. In the Wrap Column box, specify
the column at which you want lines to wrap. Clear
the checkmark if you do not want lines to wrap.
Printing
These settings affect how MPLAB Editor prints the file. These settings
become the defaults for the Print File command, but can be overridden at the
time of printing.
Page Headers
Wrap Long Lines
Prints each page headed with the file name, the
page number and the date.
Wraps lines that are too wide to fit the page to the
next line during printing.
Current File
These settings are the file modes that apply to file.
Read Only
Backup When
Saving
Add Ctrl+Z On Save
No EOLN after
last line
1.9.4
Prevents users from saving files of this type.
Makes a backup copy of any existing file of the
same name when you write the file to disk.
Automatically adds a Ctrl+Z character to the end
of the file on disk when it saves the file.
Writes an end-of-line terminator (CR-LF or LF)
after the last character of the last line when it
saves the file.
Reset Editor Modes
Select Options > Reset Editor Modes to reset the modes that apply to the
current window to the default values.
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MPLAB IDE Toolbar and Menu Options
1.9.5
Environment Setup
Select Options > Environment Setup to open a dialog box that allows you to
change settings in the following areas:
• General Options
• Project Template Options
• Files
• Default Editor Modes
• Key Mappings
• Colors
1.9.5.1
General Options
When you select Options > Environment Setup and click the General tab, a
dialog displays settings for screen font, toolbar setup, symbol display width,
and global switches.
If you would like to save all of the changes you have made in the Environment
Settings dialog so far, click Apply.
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Figure 1.51: General Dialog
 2001 Microchip Technology Inc.
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MPLAB® IDE User’s Guide
1.9.5.1.1. Screen Font
When you select Options > Environment Setup and click the General tab, the
Screen Font area allows you to select a fixed point font for MPLAB IDE
screen displays.
1. Select ANSI, OEM, System or Other in the Screen Font area of the Environment Settings dialog.
2. If you select Other, click Select to display the Font dialog.
3. In the Font dialog, select the desired screen font, then click OK to return
to the Environment Settings dialog.
If you would like to save all the changes you have made in the Environment
Setup dialog so far, click Apply.
1.9.5.1.2. Toolbar Setup
Select Options > Environment Setup and click the General tab to set up the
MPLAB IDE toolbars.
On this tab you can:
• Select a location for the toolbar on the screen and change other display
settings. Available locations are: Top, Bottom, Left, Right, and Float.
• Select the Enable checkmark to have MPLAB IDE display the toolbar.
Click Layout in the General tab of the Environment Setup dialog to display
the Toolbar Setup dialog:
Figure 1.52: Toolbar Setup Dialog
From the Toolbar Setup dialog you can:
• Add a button to the toolbar or edit an existing button’s operation
• Remove a button from the toolbar
• Group toolbar buttons
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MPLAB IDE Toolbar and Menu Options
Toolbar
Selects which toolbar to edit: Edit, Debug, Project, or
User.
Button Selects a toolbar button location. The toolbar has 16
available locations.
Operation Selects the operation that MPLAB IDE will perform for
the selected button location.
Icon
Selects a button to display in the selected button location.
Disable Button
Disables the toolbar button at the selected location on
the toolbar.
Gap Before Button
Button Size
Ok
Cancel
Defaults
Inserts a small gap before the toolbar button.
Changes the toolbar button size. Button size options
are: Automatic, Large, Medium, and Small.
Defines the toolbar as currently shown.
Returns the toolbar to its previous state.
Adding and Editing Toolbar Buttons
If you wish to be able to perform an operation from the Toolbar for which there
is no toolbar button (such as FileSave), you can either add a button and
associate it with the desired operation, or modify an existing button.
1. Select Options > Environment Setup and click the General tab to view
the existing toolbar button setup. Click Layout to display the Toolbar
Setup dialog.
2. In the Toolbar drop-down list, select the toolbar to which you wish to add
a button. The toolbar you selected appears in the Toolbar area at the top
of the Toolbar Setup dialog.
3. In the Toolbar area at the top of the Toolbar Setup dialog, click the position to which you wish to assign the new button.
 2001 Microchip Technology Inc.
If there is not currently a red circle with a slash in the position, the
button and operation you select in the following steps will replace
the current button and operation. To preserve the currently
assigned buttons, add the desired button to the right of the currently assigned buttons. You cannot add a button beyond the 17th
position on the toolbar.
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If you would like to save all the changes you have made in the Environment
Setup dialog so far, click Apply.
Note:
Part
Restores ALL toolbars to their default settings, undoing any changes you have made to any toolbar.
MPLAB® IDE User’s Guide
4. From the Icon drop-down list, select the button you wish to display on the
toolbar.
5. From the Operation drop-down list, select the operation you wish to have
performed when users click on the button (e.g., EditTextIndent).
6. Click OK to save your changes (or click Cancel to discard them) and
return to the Environment Setup dialog.
Disabling (Removing) a Toolbar Button
If you do not wish a certain operation to be available from a toolbar you can
disable its toolbar button position. This removes it from the toolbar.
1. Select Options > Environment Setup and click the General tab to view
the existing toolbar button setup. Click Layout to display the Toolbar
Setup dialog.
2. In the Toolbar drop-down list, select the toolbar that contains the button
you wish to disable (remove). The toolbar you selected appears in the
Toolbar area at the top of the Toolbar Setup dialog.
3. In the Toolbar area at the top of the Toolbar Setup dialog, click the button
you wish to disable (remove). As you select the toolbar button, the operation that is performed when the user clicks the button appears in the
Operation drop-down list.
4. Click Disable Button to the right of the Icon drop-down list. A red circle
with a slash appears in the button’s position, replacing the button.
5. Click OK to save your changes (or click Cancel to discard them).
When you return to the MPLAB IDE desktop, the position where the button
was located will be blank.
Grouping the Buttons on a Toolbar
You can group several buttons on a together to make it easier to perform
logically related operations. For example, you may wish to group the file
operation buttons together on the Edit toolbar, and separate the other buttons
from them by a small space. Groups of buttons are separated from other
buttons by a small space on the toolbar.
1. Select Options > Environment Setup and click the General tab to view
the existing toolbar button setup. Click Layout to display the Toolbar
Setup dialog.
2. In the Toolbar drop-down list, select the toolbar you wish to customize.
The toolbar you selected appears in the Toolbar area at the top of the
Toolbar Setup dialog.
3. In the Toolbar area at the top of the Toolbar Setup dialog, click the first
(left most) button in each group, and select Gap Before. Click the
remaining buttons in the group and deselect (clear) Gap Before.
4. Click OK to save your changes (or click Cancel to discard them).
DS51025E-page 172
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MPLAB IDE Toolbar and Menu Options
1.9.5.1.1. Symbol Display Width
When you select Options > Environment Setup and click the General tab, the
Symbol Display Width area allows you to specify how many character spaces
MPLAB IDE allocates when displaying symbolic information.
Register
Variables
Allows you to select a width of 6 characters wide to 32
characters.
Address Labels
Allows you to select a width of 6 characters wide to 32
characters.
1.9.5.1.2. Global Switches
When you select Options > Environment Setup and click the General tab, the
Global Switches area allows you to turn the following user selections on or off:
Status Bar Enable Turns the status bar on and off.
When selected, this global switch clears memory before
MPLAB IDE downloads to the emulator. This function
sets all program memory bits to one.
Load Default
Configuration
When selected, MPLAB IDE loads the default user configuration at start-up. To change the default window
setup, open the windows you want to load at start-up,
select Options > Window Setup > Save Setup and click
Yes. The MPLAB IDE window setup may contain any
available MPLAB IDE window. MPLAB.CFG is the
default user configuration file.
Track Source
Code
When selected, MPLAB IDE updates the current line in
the source code when single stepping. You may wish to
turn this feature off if you have a *.HEX file, but no
*.COD file.
If you would like to save all the changes you have made in the Environment
Setup dialog so far, click Apply.
 2001 Microchip Technology Inc.
DS51025E-page 173
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Clear Memory on
Download
MPLAB® IDE User’s Guide
1.9.5.2
Project Template Options
Select Options > Environment Setup and click the Project tab to display and
edit the project language and path default options. The defaults you set here
will be used in new projects you subsequently create. Existing projects will not
be affected.
Note:
To change the settings for an individual MPLAB IDE project, select
Project > Edit Project and follow the instructions in Section 1,
Chapter 3: Getting Started with MPLAB IDE – A Tutorial.
If you would like to save all of the changes you have made in the Environment
Settings dialog so far, click Apply.
Figure 1.53: Project Template Dialog
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MPLAB IDE Toolbar and Menu Options
Default Language Suite You can select a Language Tool Suite (e.g.,
assembler, compiler) from the drop-down list at the
top of the Project Templates tab of the Environment Setup dialog. You may need to install the language tools for this suite. You can select a suite
that is not installed on your PC, but the project will
not build.
If you installed your language tool before installing
MPLAB IDE, you must give MPLAB IDE information about the language tool in the Install Language Tool dialog.
Default Project Type If you selected Microchip as the default language
suite, indicate whether your projects will consist of
multiple linked files or a single, absolute file.
Default Library Path In the Library box of the Edit Project dialog, enter
the path to the default project library file folder.
This path may be set only if you have selected the
Linked project type.
Default Linker Script In the Linker Script box of the Edit Project dialog,
Path enter the path to the default folder of project linker
script files. This path may be set only if you have
selected the Linked project type.
Each Path box can contain one or more absolute
or relative paths separated by semicolons. For
example:
c:\mplab\projects\mpproj\include;
c:\include\h;..\sys
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Default Include Path In the Include Path box, enter the path to the
default folder of included project files, e.g., Header
files.
If the include path is not set for an individual
project, Make Project will not be able to find the
include files and will proceed to build the entire
project. The build will be successful since the
assembler/compiler will find the files via the
MCC_INCLUDE variable in the AUTOEXEC.BAT
file. However, this is an inefficient way to make a
project.
MPLAB® IDE User’s Guide
Default Project Nodes
Indicate any non-compiled (object, library, and
linker script) nodes you wish to include in your
project template. Click Add Node to specify the
drive, folder and filename of each node you wish to
add. To remove an existing node from your project
template, select the node and click Delete Node.
The folder from which you choose your files
defaults to the project template’s default browse
folder. To select files from a different folder, select
the drive from the Drives drop-down list at the bottom right of the Add Node dialog, double-click the
folder in the Folders hierarchy at the top right of the
Add Node dialog, and be sure that Source Files is
selected in the Show files of type box below the list
of files.
Size of Most Recently The Size of Most Recently Used Projects List
Used Projects List allows you to select the length of the most recently
used project list at the bottom of the MPLAB IDE
Project menu. When you decrease this value, file
names will be removed from the list. These names
will not be remembered (redisplayed) when you
increase this value later. File names that you use
after you increase this value will appear in this list.
The default size of this list is five.
Build Timeout Length Set the maximum time allowed for a build. If a build
takes longer than the alotted time, a timeout will
occur and no new HEX file will result.
If Build Timeout is set to “off,” no timeout will occur.
DS51025E-page 176
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MPLAB IDE Toolbar and Menu Options
1.9.5.3
File Options
Select Options>Environment Setup and click the Files tab to set the default
browse folder for MPLAB IDE and adjust the number of files displayed in the
Most Recently Used File List. If you would like to save all of the changes you
have made in the Environment Settings dialog so far, click Apply.
Part
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Figure 1.54: File Options Dialog
1.9.5.3.1. Default File Browse Directory
The Default File Browse Directory is the directory (folder) in which MPLAB
IDE starts a file browse window.
To start from the last location a file was added, select Last Used. If the
directory no longer exists, MPLAB IDE will use the MPLAB IDE directory.
To start in the root of the project directory, select Project Directory. If this
directory doesn’t exist, MPLAB IDE will use the highest parent directory that
exists. If no project is open, MPLAB IDE will use the MPLAB IDE directory.
To specify a directory from which to start browsing, select Other, then enter
the desired directory. This setting defaults to Project Directory.
 2001 Microchip Technology Inc.
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MPLAB® IDE User’s Guide
1.9.5.3.2. Size of Most Recently Used Files List
The Size of Most Recently Used Files List allows you to select the length of
the most recently used file list at the bottom of the MPLAB IDE File menu.
When you decrease this value, file names will be removed from the list. These
names will not be remembered (redisplayed) when you increase this value
later. File names that you use after you increase this value will appear in this
list. The default size of this list is five.
1.9.5.4
Default Editor Modes
MPLAB Editor associates a set of Window Modes with every edit window for
existing and new files. The modes can be set with the Default Editor Modes
tab from Options > Environment Setup. If you would like to save all of the
changes you have made in the Environment Settings dialog so far, click
Apply.
Figure 1.55: Editor Modes Dialog
To set the default editor modes for a given type of files, click the File Type
button and either select the file type from the adjoining list or type a new one
(with a leading “.”) into the edit control. This mode is applied when you use the
File > Open Source, File > View, and File > Save As commands.
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MPLAB IDE Toolbar and Menu Options
1. To set the default editor modes for files created with the New File command, select New Files.
Or, click the Other Types button to set default modes for file types not in
the File Type list.
2. Check the mode boxes in the dialog to specify screen formatting, display/input, printing, and file save modes.
3. Click Apply Settings to save the settings for this file type.
4. Repeat steps 1 through 3 to set editor modes for other file types.
The modes you can set in the dialog are:
Screen Formatting
These settings affect tabs and text wrapping.
Tab Size
Defines the width of a tab character.
Soft Tabs
Inserts spaces instead of tabs when Soft Tabs is checked.
Wrap Lines at
Column
Place a checkmark to the left of this option and specify the
column at which you want lines to wrap. Clear the checkmark if you do not want lines to wrap.
Part
Auto Indent
Indents new lines to the same level as the preceding line.
Strip trailing Removes white space from the end of a line whenever you
spaces press Enter.
 2001 Microchip Technology Inc.
Show line
numbers
Displays line numbers in the window.
Overwrite
Overwrites the characters under the cursor with the characters you type. Otherwise MPLAB Editor inserts characters at
the cursor.
Language
Select from this list to associate a language (such as C or
Pascal) with the file type. This associates certain formatting
settings (like indenting) with files of the type you are setting
modes for.
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Display/Input Modes
These settings control how text is displayed in the window and any special
actions MPLAB Editor takes as you type.
MPLAB® IDE User’s Guide
Printing
These settings affect how MPLAB Editor prints the text in the current window. These settings become the defaults for the File > Print command, but
can be overridden at the time of printing.
Page Prints each page headed with the file name, the page numHeaders ber and the date.
Wrap Long
Lines
Wraps lines that are too wide to fit the page to the next line
during printing.
File Modes
These settings are the file modes that apply to file.
Read only
Prevents users from saving files of this type.
Backup when Makes a backup copy of any existing file of the same name
saving when you write the file to disk.
Strip Ctrl+Z
on load
DS51025E-page 180
Automatically removes any Ctrl+Z character at the end of
the file when it is loaded.
Add Ctrl+Z on
save
Automatically adds a Ctrl+Z character to the end of the file
on disk when it saves the file.
No EOLN
after last line
Writes an end-of-line terminator (CR-LF or LF) after the last
character of the last line when it saves the file.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.9.5.5
Key Mappings
Select Options > Environment Setup and click the Key Mappings tab to
display and edit the MPLAB IDE key mappings. By mapping keyboard keys to
MPLAB IDE functions, you can perform common operations quickly. You may
use the existing key mappings or modify the key mappings to meet your
specific needs for your current project. MPLAB IDE uses the binary
initialization file, MPLAB.KEY, in the MPLAB IDE folder to record the key
mapping values that will be carried from one session to another. If you would
like to save all of the changes you have made in the Environment Settings
dialog so far, click Apply.
Part
MPLAB IDE
Reference
Figure 1.56: Key Mappings Dialog
By default, no prefix keys are enabled. This means that only single keys are
available for mapping.
MPLAB IDE uses the binary initialization file, MPLAB.KEY, in the MPLAB IDE
folder to record the key mapping values that will be carried from one session
to another.
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MPLAB® IDE User’s Guide
To create a key mapping:
1. To modify an existing key mapping, click Load to select the existing key
mapping file.
2. Define a prefix key (optional).
3. Click the checkboxes below the prefix key to assign the key or key
sequence (e.g., Shift + F2). The Current Definition box displays the current function that is mapped to the key or key sequence.
4. Select the “Show this mapping on menu” checkbox if you want this key
mapping shortcut to appear to the right of the menu option on the
MPLAB IDE menu.
5. Select the function that you want this key or key sequence to perform
from the drop-down New Definition list. (Refer to “Appendix A: MPLAB
IDE Key Mapping Functions” for a list of available MPLAB IDE key mapping functions.)
6. Click Add to add this mapping to the key mapping file.
To change the function performed by an existing key mapping, select the
key or key sequence, select the desired function, then click Change.
To delete a key mapping, locate the key sequence and click Delete.
7. Click Save or Save As to save your key mapping.
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MPLAB IDE Toolbar and Menu Options
1.9.5.6
Colors
Select Options > Environment Setup and click the Colors tab to change the
colors assigned to displayed data. If you would like to save all of the changes
you have made in the Environment Settings dialog so far, click Apply.
Part
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Reference
Figure 1.57: Colors Dialog
To change the color, select the text that you want to alter by clicking on it.
Next, select the new color.
 2001 Microchip Technology Inc.
DS51025E-page 183
MPLAB® IDE User’s Guide
1.9.6
Programmer Options
1.9.6.1
Select Programmer
1. Select Options > Programmer Options > Select Programmer to select a
programmer from the list of available programmers.
2. Select the programmer from the drop-down list in the Select Programmer dialog.
3. Click OK.
Figure 1.58: Select Programmer Dialog
1.9.6.2
Communications Port Setup
Select Options > Programmer Options > Communications Port Setup to
select the comm port for the programmer you are using.
1. Select Options > Programmer Options > Communications Port Setup
from the menu bar.
2. Select the comm port in the Communications Port Setup dialog.
3. Click OK.
Figure 1.59: Communications Port Setup Dialog
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MPLAB IDE Toolbar and Menu Options
1.10 Tools Menu
1.10.1
DOS™ Command to Window (F11)
Tools > DOS Command to Window allows you to run a DOS program such as
a compiler, or an internal command such as DIR, and capture the output into
an edit window.
The command starts a dialog that prompts you for the command line to be
executed. This can be any DOS command, including built-in ones like DIR.
By clicking the Browse button, you can specify the working directory that the
command is to run in. This affects only the DOS command. MPLAB IDE will
still use its previous working directory.
When you start the dialog, MPLAB IDE sets the command string and the
proposed working directory name to the values you set the last time you used
it.
You may execute only one DOS command at a time. Until the command
completes, MPLAB IDE will reject attempts to start another.
Note:
You cannot start a Windows application with this dialog.
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Figure 1.60: Execute DOS Command Dialog
1. Set the various options you want to apply:
Beep when done causes the Editor to sound the standard system beep
when the DOS program finishes.
Minimize Editor causes the Editor to minimize into an icon before running
the DOS program.
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MPLAB® IDE User’s Guide
Save changed files causes the Editor to see if any of the files you’re editing
have changed and gives you the opportunity to save the changes before
running the DOS program. If you agree to save the changes, all the files
you’ve altered will be written to disk.
Reuse output window causes the Editor to place the DOS program’s output into the window used the last time you used this dialog. If not, a new
output window will be created.
Show end of output causes the Editor to automatically scroll the window
showing the output to show you the end of it rather than the start.
2. Click OK to run the DOS program.
The command line, working directory path, and options are recorded and
become the default the next time you use this dialog.
1.10.2
Repeat DOS Command to Window (Ctrl+F11)
Tools > Repeat DOS Command to Window exactly repeats the last DOS
command you ran with Execute DOS Command To Window and shows the
command output in a window when it completes.
If you have not previously run a command, the Editor will act as if you
selected Execute DOS Command To Window and will open the Execute DOS
Command and Capture Output dialog.
1.10.3
Verify PICMASTER Emulator
If you are using a PICMASTER emulator with MPLAB IDE, select Tools >
Verify PICMASTER to verify that the PICMASTER emulator is operating
properly. Refer to the PICMASTER User’s Guide (DS51037) for detailed
information on verifying the PICMASTER emulator.
1.10.4
Verify MPLAB ICE
If you are using an MPLAB ICE 2000 with MPLAB IDE, you must exit MPLAB
IDE and run VERIFY.EXE, located in the main MPLAB IDE folder, to verify
that the MPLAB ICE 2000 is operating properly. Refer to the MPLAB ICE InCircuit Emulator User’s Guide (DS51159) for detailed information.
DS51025E-page 186
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11 Window Menu
All Window options are available in simulator mode or emulator mode.
In Editor Only mode, Absolute Listing and Show Symbol List are available. In
addition, the window positioning options and the Open Windows selections
are also available.
Available windows are:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Program Memory
Trace Memory
EEPROM Memory (device dependent)
Calibration Data (device dependent)
Absolute Listing
Map File
Stack
File Registers
Special Function Registers
Show Symbol List
Stopwatch
Project
Watch Window
Modify
Part
The following commands affect the arrangement and appearance of windows
in MPLAB IDE.
 2001 Microchip Technology Inc.
MPLAB IDE
Reference
•
•
•
•
•
•
Tile Horizontal
Tile Vertical
Cascade
Iconize All
Arrange Icons
(Open Windows)
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MPLAB® IDE User’s Guide
1.11.1
Program Memory
Select Window > Program Memory to display program memory. The program
memory window can display locations in the range of program memory for the
currently selected processor. You can leave the Program Memory window
open at all times and move and resize the window.
The Program Memory window is only available in Emulator and Simulator
mode.
Figure 1.61: Program Memory Window – Machine Code Display
1.11.1.1 System Button Options
Click the system button in the upper left corner of the Program Memory
screen to display the following options:
DS51025E-page 188
Toggle Line
Numbers
Toggles field for displaying line numbers and qualifier
points.
HEX Code
Display
Displays program memory information as HEX data.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
Machine Code
Display
Disassembly
Display
Displays disassembled HEX code with no symbolic
information.
Displays disassembled HEX code with symbols.
1.11.1.2 Program Memory Display Modes
The program memory can be displayed three ways. The desired format is
chosen through the system menu.
• HEX Code Display – This displays the program memory as HEX data.
This option is most useful when using a device programmer
(Figure 1.62).
• Machine Code Display – This displays the disassembled HEX code
with no symbolic information (Figure 1.61).
• Disassembly Display – This displays the disassembled HEX code with
symbols.
When this window is in Machine Code Display mode or Disassembly Display
mode, the instruction at the current program counter address will be
highlighted. Other features of MPLAB IDE can alter the display of the program
memory window.
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Figure 1.62: Program Memory Window – HEX Code Display
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1.11.1.3 Program Memory Field Descriptions
MPLAB IDE displays data in the Program Memory window that it reads
directly from emulation memory. Program Memory fields contain the following
information:
Field One
Address in HEX.
Field Two
Opcode (or data) in HEX.
Field Three
Field Four
Highlight Bar
Program Label in symbolic format. You can increase the display width of labels by selecting Options > Environment
Setup and clicking the General tab.
Machine code, disassembled code, or source code.
Current location of the program counter.
Program Memory locations display break, trace, and trigger out status at each
memory location as follows:
1.11.1.3.1. Selecting Points
Symbol
Point Type
Menu Selection
(RMB = Right Mouse Button)
B
Break Points
RMB > Break Point(s)
T
Trace Points
RMB > Trace Point(s)
O
Trigger Output
RMB > Trigger Point(s)
Q
Pass Count Address Set from Break or Trace Point Settings Dialog
Available options depend on the development tool in use.
MPLAB IDE uses a combination of color and notations in the Program
Memory window to show break, trace, and trigger points. If no points have
been set at a particular address, the text will display normally. If a point is set,
the color of the text will change and the width of the line number window will
increase to show the active points. Unset points are displayed as periods.
1.11.1.4 Creating a Temporary Real-Time Break Point
To set up a temporary real-time break point from the Program Memory
Window, double-click the left mouse button anywhere on a valid address line.
The processor runs in real time until one of the following occurs:
• The line containing the temporary break point is executed
• A break point is encountered
• You click on Halt
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 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11.2
Trace Memory
Select Window > Trace Memory to display the contents of the trace buffer.
This window can be left open at all times, moved around, and resized.
The trace memory window takes a “snapshot” of your program’s execution.
For emulators that have a trace buffer, this shows how your program runs at
full speed.
Some applications, such as motor control systems, cannot be halted. Some
bugs may appear only when the application is running; i.e., they don’t occur
when single-stepping through the code. The trace buffer gives you another
tool for testing such applications. Check your emulator user’s guide for more
information on the information collected in its hardware trace buffer.
In the simulator, the trace buffer is useful for collecting a long record of
program execution so you can analyze it later. The simulator will show slightly
different information than the emulator’s trace.
To use the simulator’s trace buffer, first you must select code to trace. If you
click and drag across the program memory window you can select
instructions to trace, then press the right mouse button. This will bring up a
shortcut menu where you can select “Trace Point(s).” Now reset and run the
code, then halt it after it runs for a few seconds. Select Window > Trace to see
the collected trace:
MPLAB IDE
Reference
Figure 1.63: Trace Memory Window
The simulator puts a time stamp on each line and also shows any registers
that were changed along with their values.
Field One
Address in HEX.
Field Two
Opcode (or data) in HEX.
Field Three
Program Label in symbolic format. You can increase the display width of labels by selecting Options > Environment Setup
and clicking the General tab.
Field Four
Machine code, disassembled code, or source code.
Field Five
Emulator: Status on External Logic Probe Lines. The status
fields are shown on the extreme right-hand side of the window.
Simulator: Time stamp and changed register information.
To save the contents of the trace buffer to a file, select File > Export > Export
Trace Buffer.
 2001 Microchip Technology Inc.
Part
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1.11.3
EEPROM Memory
Select Window > EEPROM Memory to display the EEPROM data memory
window for a microcontroller device that has EEPROM data memory. The
PIC16F84 is an example of a device that supports EEPROM memory.
The EEPROM window can be left open at all times, moved around, and
resized. This window is for information only and you cannot change values
from this window. To change the EEPROM values, select Window > Modify
and use the Modify dialog.
Figure 1.64: EEPROM Memory Window
The EEPROM window displays the data/opcode HEX information of the
particular processor being emulated. When an EEPROM register value
changes or the processor is halted, the data in the EEPROM window is
updated.
System Button Options
Click the system button in the upper left corner of the EEPROM Memory
screen to display the following options:
Toggle Line Numbers
HEX Display
Toggles field for displaying line numbers.
Displays program memory information as HEX data.
ASCII Display Displays the ASCII character at each memory location.
1.11.4
Calibration Data
If the emulated device contains calibration memory, the calibration memory
can be viewed by selecting Window > Calibration Data. The appearance of
this window will depend on the emulated device.
The Calibration Data dialog is for use with the PIC12CXXX or PIC14000
device families. It displays the floating point data in the Emulator Probe for
alteration by the user.
Saved calibration data may be loaded into MPLAB IDE using File>Import.
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 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
Figure 1.65: Calibration Constants Dialog – PIC12CXXX
OK
Closes the dialog and modifies the calibration value as specified.
Cancel
Closes the dialog and does not modify the values in the memory
area.
Part
 2001 Microchip Technology Inc.
Update
Takes the information from calibration data dialog, converts it from
the IEEE 754 format to the Microchip version of IEEE 754, and
stores it in the memory area for use in the embedded code. Only
the first four numbers KREF, KBG, VTHRM, and KTC are in floating
point format. The last two, Fosc and TWDT, are 8-bit, unsigned
numbers with values from 0 to 255.
Restore
Takes the original calibration data uploaded from the probe during
system Reset and resets the values in the memory area for use in
the embedded code.
Cancel
Closes the dialog and does not modify the values in the memory
area.
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Reference
Figure 1.66: Calibration Data Dialog – PIC14000
MPLAB® IDE User’s Guide
1.11.5
Absolute Listing
Select Window > Absolute Listing to display and single step through the list
(*.LST) file generated by the MPASM assembler or a compatible C compiler.
Use this function to display both C code and the assembly code that
corresponds to the C code. The Absolute Listing gives you a better idea how
the C compiler implemented your code. If you are not using C, an assembler
(e.g., MPASM) will generate a similar listing file.
The Absolute Listing Window shows the list file generated by the assembler
or compiler. The Absolute Listing displays source code with the generated
object code.
Figure 1.67: Absolute Listing Window
DS51025E-page 194
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11.6
Map File
A map file shows the used and unused memory regions after linking. To view
the map file, select Window > Map File.
Part
Figure 1.68: Map File Window
For more information on map files, see the MPASM User’s Guide with
MPLINK and MPLIB (DS33014).
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Reference
To generate a map file for a linked project, select Project > Edit Project to
bring up the Edit Project dialog. Then select/highlight the main node [.hex] in
the Project Files section of the dialog. Click Node Properties to bring up the
Node Properties dialog. Select the Map file checkbox to turn on the creation of
the map file.
MPLAB® IDE User’s Guide
1.11.7
Stack
Select Window > Stack to open a window displaying the contents of the stack.
The number of available levels depends on the processor type being
emulated. The Stack Window can be left open at all times, moved around,
and resized.
Figure 1.69: Stack Window
Note:
If Stack Overflow Break Enable is set (Options>Development
Mode>Break Options), MPLAB IDE will display stack overflow and
underflow warnings when they occur.
The contents of the stack may be displayed with (shown) or without line
numbers. The desired format is chosen through the system menu.
Note:
The system menu is accessed by clicking the top left corner of the
program memory window.
1.11.7.1 Hardware Stack Levels
1.11.7.1.1. 12-Bit Core Hardware Stack – 2-Levels Deep
Devices with a 12-bit core, such as PIC12C5XX and PIC16C5X, have a
2-level deep hardware stack.
1.11.7.1.2. 14-Bit Core Hardware Stack – 8-Levels Deep
Devices with a 14-bit core, such as PIC14000 and PIC16CXXX, have an 8level deep hardware stack.
Note:
DS51025E-page 196
If you clear Disable Stack Overflow Warning (Options > Development Mode, Break Options tab) and push the stack beyond its limit,
MPLAB IDE will display an underflow or overflow message.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11.7.1.3. 16-Bit Core Hardware Stack – 16-Levels Deep
Devices with a 16-bit core, such as PIC17CXXX, have a 16-level deep
hardware stack.
Note:
If you clear Disable Stack Overflow Warning (Options > Development Mode, Break Options tab) and push the stack beyond its limit,
MPLAB IDE will display an underflow or overflow message.
1.11.7.1.4. 16-Bit Enhanced Hardware Stack – 31-Levels Deep
Devices with an enhanced 16-bit core, such as PIC18CXXX, have a 31-level
deep hardware stack.
Note:
If you clear Disable Stack Overflow Warning (Options > Development Mode, Break Options tab) and push the stack beyond its limit,
MPLAB IDE will display an underflow or overflow message.
1.11.7.2 Simulator Stack—12-Bit Core Devices
1.11.7.3 Simulator Stack – 14-Bit Core Devices
The MPLAB SIM simulator presents an accurate simulation of the hardware
stack on the PIC14000 and PIC16CXX devices, and additionally provides
warning messages if an underflow or overflow condition occurs. When a
CALL instruction is encountered, or when an interrupt has occurred, the value
of the PC + 1 is pushed to the stack, and the stack is popped when a RETLW,
RETURN, or RETFIE instruction is executed. If more than eight values are
pushed to the stack before it is popped, the value will be pushed to the stack,
but a warning message will be issued indicating a stack overflow condition.
An error message will also be generated if the user attempts to pop an empty
stack. Popping an empty stack will cause the stack pointer to point to the top
of a full stack, and will not generate an error message if another pop is
initiated.
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DS51025E-page 197
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The MPLAB SIM simulator presents an accurate simulation of the hardware
stack on the PIC12C5XX and PIC16C5X devices and additionally provides
warning messages if an underflow or overflow condition occurs. When a
CALL instruction is encountered, or when an interrupt has occurred, the value
of the PC + 1 is pushed to the stack, and the stack is popped when a RETLW
instruction is executed. If more than two values are pushed to the stack before
it is popped, the value will be pushed to the stack, but a warning message will
be issued indicating a stack overflow condition. An error message will also be
generated if the user attempts to pop an empty stack. Popping an empty stack
will cause the last value popped to be put in the PC.
MPLAB® IDE User’s Guide
1.11.7.4 Simulator Stack – 16-Bit Core Devices
The MPLAB SIM simulator presents an accurate simulation of the hardware
stack on the PIC17CXXX, and additionally provides warning messages if an
underflow or overflow condition occurs. When a CALL or LCALL instruction is
encountered or when an interrupt has occurred, the value of the PC + 1 is
pushed to the stack. The stack is popped when a RETLW, RETURN, or
RETFIE instruction is executed. If more than sixteen values are pushed to the
stack before it is popped, the value will be pushed to the stack, a warning
message will be issued indicating a stack overflow condition, and the
STAKAVL bit will be cleared until a RESET condition occurs.
1.11.7.5 Simulator Stack – Enhanced 16-Bit Core Devices
The MPLAB SIM simulator presents an accurate simulation of the hardware
stack on the PIC18CXXX, and additionally provides warning messages if an
underflow or overflow condition occurs. When a CALL or LCALL instruction is
encountered or when an interrupt has occurred, the address of the next
instruction following the call is pushed to the stack. The stack is popped when
a RETLW, RETURN, or RETFIE instruction is executed. If more than 31
values are pushed to the stack before it is popped, the value will be pushed to
the stack, a warning message will be issued indicating a stack overflow
condition, and the STAKAVL bit will be cleared until a RESET condition
occurs.
DS51025E-page 198
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11.8
File Registers
Select Window > File Registers to display a window of all the File Registers of
the particular processor being emulated. When a file register value changes,
or the processor is interrogated, the data in the File Register window is
updated. The File Register window can be left open at all times, moved
around, and resized.
Part
File register contents can also be modified through this window. To change a
range of registers (i.e., to fill them with a constant value), click the left mouse
button and drag over the values you want to change. To change one register,
simply place the cursor over the register you want to change. Then click the
right mouse button to display the Fill Register pop-up menu. Select Fill
Register to display the Modify dialog (Figure 1.80) with the address range
already entered.
 2001 Microchip Technology Inc.
DS51025E-page 199
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Reference
Figure 1.70: File Registers Window – Symbolic Display
MPLAB® IDE User’s Guide
1.11.8.1 File Registers Window Display Modes
File registers can be displayed three ways. The desired format is chosen
through the system menu.
• HEX Display – This displays the file registers as HEX data
(Figure 1.71).
• Symbolic Display – This displays each file register symbolically with
corresponding data in HEX, decimal, binary and character formats
(Figure 1.70).
• ASCII Display – This displays the file registers as ASCII data.
Note 1:
The system menu is accessed by clicking the top left corner of
the File Register window.
2:
If Freeze Peripherals On Halt is selected in the Break Options
tab under Options > Development Mode, the I/O port bits in the
SFR or the watch windows will not update when single stepping. The pin will be modified, but the read request to retrieve
the new value is blocked by the freeze and cannot be updated
until the next step or run command.
Figure 1.71: File Register Window – HEX Display
DS51025E-page 200
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11.8.2 System Button Options
Click the system button in the upper left corner of the File Register Memory
screen to display the following options:
Toggle Line Numbers
Toggles field for displaying line numbers.
HEX Display Displays file registers information as HEX data.
Symbolic Display
ASCII Display
Displays data at each memory location in the following formats: HEX, Decimal, Binary, ASCII Character,
Symbol, and Name.
Displays the ASCII character at each memory location.
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1.11.9
Special Function Registers
Select Window > Special Function Registers to display the contents of the
Special Function Registers (SFR) for the processor being emulated. The
format provided by this window is more useful for viewing the SFRs than the
normal file register window, since each SFR name is included and several
number formats are presented. Whenever a break occurs, the contents of the
SFRs are updated.
This window can be left open at all times, moved around and resized. A
sample of this window is shown below.
SFRs may be displayed with (shown) or without line numbers. The desired
format is chosen through the system menu.
Note 1:
The system menu is accessed by clicking the top left corner of
the program memory window.
2:
If Freeze Peripherals On Halt is selected in the Break Options
tab under Options > Development Mode, the I/O port bits in the
SFR or the watch windows will not update when single stepping. The pin will be modified, but the read request to retrieve
the new value is blocked by the freeze and cannot be updated
until the next step or run command.
Figure 1.72: Special Function Registers
DS51025E-page 202
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
Field One
Name of SFR.
Field Two Data as a hexadecimal value.
Field Three
Data as a decimal value.
Field Four
Data as a binary number.
Field Five
Data as ASCII characters.
To modify the contents of a particular SFR:
1. Double-click on a register in this window to invoke the Modify dialog box
with the symbol/address and data fields already filled in, or
2. Use the execute Window > Modify menu.
Note:
The SFR names and addresses are different for every device.
Part
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MPLAB® IDE User’s Guide
1.11.10
Show Symbol List (Ctrl+F8)
Select Window > Show Symbol List to display all symbols known to MPLAB
IDE. Symbols include constants and labels. Show Symbol List is an
information only dialog box. The symbols displayed in this dialog box
represent the symbols imported from your source code after compiling or
assembling. These symbols are from the *.COD file in your project.
Note:
A project must be open and built in order for you to display a symbol list.
Figure 1.73: Show Symbol List
Variable, Address
Label, Address
Constants
DS51025E-page 204
Displays variables from the File Register memory and
the address of each variable.
Displays labels from program memory and the address
of each label.
Constants defined in the source code can be used in
executing opcode and as operands for instructions in
Modify.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11.11
Simulator Stopwatch
Select Window > Stopwatch to display the current value of the Cycle counter.
The system Stopwatch counts the number of clock cycles that the processor
executes. The counting occurs with real-time execution and with polled
execution. The timer triggers on every cycle of an instruction. The stopwatch
allows you to measure code execution time. It is not always accurate while
single stepping. The stopwatch calculates time based upon the clock
frequency of the PICmicro MCU device. To set the clock frequency, select
Options > Development Mode and click the Clock tab.
Part
Figure 1.74: Simulator Stopwatch Dialog Box
Displays the number of cycles that the processor executes.
Time
Displays the stopwatch time in seconds. Computed from
the number of cycles executed and from the processor
frequency.
Zero
Click Zero to reset the cycle counter to zero. You can
reset the timer at any time when the processor is halted.
Example 1.1: You can use this timer for precise timing measurements.
If you need to measure the exact time a subroutine takes to execute,
then simply reset the timer before entering the subroutine and put a
break point at the end of the subroutine. The timer displays the total
number of cycles executed in the subroutine and also displays the
execution time.
Processor
Frequency
Note:
 2001 Microchip Technology Inc.
Displays the selected Processor Frequency. To change
the frequency, you must select Options > Development
Mode and click the Clock tab.
The stopwatch is not available with MPLAB ICD or MPLAB ICE
2000. For MPLAB ICE 2000, refer to the MPLAB ICE Emulators
User’s Guide (DS51159) for an example of a “Time Between Events”
Complex Trigger.
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MPLAB IDE
Reference
Cycles
MPLAB® IDE User’s Guide
1.11.12
Project Window
The Project Window is available only when a project is open. It displays the
list of files currently in the project. If the project has been compiled, the project
window displays a list of all included files in the project. Otherwise, the Project
Window only displays the main project file. Double-click on any file displayed
in the Project Window to open that file for editing.
Figure 1.75: Project Window
DS51025E-page 206
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11.13
Watch Window
MPLAB IDE allows the contents of file registers to be monitored through a
Watch window. Using either the MPLAB IDE menu or a system menu inside
the Watch window, you can add and remove symbols and change their
display properties. The contents of the Watch window may be displayed with
or without line numbers. To choose the desired format, select Toggle Line
Numbers on the system menu inside the Watch window.
1.11.13.1 New Watch Window
To create a Watch window, select Window > Watch Window > New Watch
Window. Both the Add Watch Symbol dialog (Figure 1.77) and the Watch_1
window (Figure 1.76) will open. Refer to Section 1.11.13.4 for information on
editing Watch windows.
Part
1.11.13.2 Load Watch Window
Select Window > Watch Window > Load Watch Window to load a Watch
window that you previously created and saved to disk. Select a Watch window
file to load and click OK, or double-click the desired file.
In the Load Watch dialog, select the Drive from the Drives pull down list at the
bottom right of the dialog. Double-click the folder in the Folders hierarchy at
the top right of the Load Watch dialog to specify the path on the selected
drive. In the list of files below the File Name box at the left of the Load Watch
dialog, select the Watch window file you wish to open. Click OK. Both the Add
Watch Symbol dialog and the Watch window will open.
Select Add Watch Symbol from the system menu to add symbols to the
Watch window. Refer to Section 1.11.13.4 for information on editing Watch
windows.
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DS51025E-page 207
MPLAB IDE
Reference
Figure 1.76: Watch Window
MPLAB® IDE User’s Guide
1.11.13.3 Add Watch Window Symbols
You can add symbols to the active Watch window.
Figure 1.77: Add Watch Symbol Dialog
Select Window > Watch Window > Add to Active Watch. Select symbols (see
Section 1.11.13.7) to add to the open Watch window by clicking on them in the
Add Watch Symbol list box. Or, you can enter the address of the symbol you
want to watch (e.g., 0x40). Click Add to add them to the Watch window.
To change how a symbol is displayed in the Watch window, select that symbol
and click Properties to open the Properties dialog (see Section 1.11.13.5).
Click Close when you have finished adding symbols. The Watch window will
display the current value of the variables you selected.
DS51025E-page 208
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11.13.4 Edit Watch Window Symbols
You can use either the MPLAB IDE menu or the system menu inside the
Watch window to change the display properties of symbols that are already in
the Watch window, or delete the symbols from the Watch window.
After creating or opening a Watch window, select Window > Watch Window >
Edit Active Watch from the MPLAB IDE menu to display the Edit Watch
Symbol dialog. Or, select Edit Watch from the system menu inside the Watch
window. The dialog lists all symbols you have added in the Watch window.
Part
In the Symbol list of the Edit Watch Symbol dialog, scroll to the symbol of the
variable you wish to change and highlight it. Click Properties.
To delete a symbol from the Watch window in the Edit Watch Symbol dialog,
scroll to the symbol of the variable you wish to delete and click Delete. Or,
simply place the cursor on the symbol in the Watch window and select Delete
> Watch from the system menu inside the Watch window.
Once you are through editing or deleting watch symbols, click Close to close
the Edit Watch dialog and return to the Watch window.
 2001 Microchip Technology Inc.
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MPLAB IDE
Reference
Figure 1.78: Edit Watch Symbol Dialog
MPLAB® IDE User’s Guide
1.11.13.5 Changing Watch Symbol Properties
The Properties dialog allows you to select the format in which the symbols will
be displayed in the Watch window. You may display the Properties dialog box
by clicking Properties from the Add Watch Symbol and Edit Watch Symbol
dialogs.
Figure 1.79: Properties Dialog
Format Determines what type of number to display:
Hexadecimal, Binary, Mchip Float, Decimal, ASCII, or
IEEE Float. Mchip Float and IEEE Float are available
only for 24- and 32-bit size selections.
Size
Determines how many bits will be included in the display
of the number.
Byte Order
Determines the display order of each byte. Available for
16-, 24-, and 32-bit numbers.
Display Bits
To display a specific bit, select Bit in the Size area, then
select the bit to be displayed here.
OK
Cancel
DS51025E-page 210
Click OK to accept the changes and return to the Edit
Watch Symbol dialog.
Click Cancel to return to the Edit Watch Symbol dialog
without accepting any changes.
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11.13.6 Save Watch Window
Select Window > Watch Window > Save Watch Window to save the Watch
window that you are active in.
In the Save Watch dialog, select the Drive from the Drives pull-down list at the
bottom right of the dialog. Double-click the folder in the Folders hierarchy at
the top right of the Save Watch dialog to specify the path on the selected
drive. In the File Name box at the top left of the Save Watch dialog, replace
the “*” with the name you want to give your Watch window. Click OK to save
the Watch window to disk.
1.11.13.7 Watch Window Symbols Defined
Watch window symbols are represented differently depending on their
application.
Symbol
Example
Definition
lower case
portb
Always available; internal to MPLAB IDE
upper case
PORTB
Loaded from header file
Part
Note:
The variable W represents an address of ‘0’, where as the variable
w represents the W register value.
MPLAB IDE
Reference
 2001 Microchip Technology Inc.
DS51025E-page 211
MPLAB® IDE User’s Guide
1.11.14
Modify
Select Window > Modify to display and/or modify the contents of Data
Memory, Program Memory, the Stack, or EEPROM memory. You can use this
feature to write input pin states.
Modify allows you to Read/Write to a specific address, Read/Write while
incrementing to the next address, or fill an address block. MPLAB IDE allows
you to leave the Modify window open at all times and move it around.
Figure 1.80: Modify Dialog Box
MPLAB IDE provides four ways to open the Modify dialog box:
• Select Window > Modify.
• Double-click on an item in the Special Functions Register window.
• Double-click an item in a Watch Window.
• Select an address or range in the File Register Window and click the
right mouse button to display a popup menu which contains the Fill
Register(s) option. Select Fill Register(s) from the popup menu to display the Modify dialog box.
Address Select a label from the drop-down list or enter the address
at which data is to be read or modified. You can enter a
numeric address or a symbol (label).
Note:
Numeric constants must begin with a numeric digit. Therefore, HEX
values may need to be preceded by “0”; e.g. "0FF" instead of "FF."
Data/Opcode Click Read to display data value/opcode at a selected
address and memory area. Click Write to write data
value/Opcode to the selected address and memory area.
Radix
DS51025E-page 212
HEX or Decimal
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
Memory Area Select the Memory Area that you want to modify:
Data Memory:RAM Memory
Program Memory:ROM Memory in the emulator
Stack:Stack Memory on the Device
EEPROM:EE Data Memory
End Address
The ending address for Fill Range.
Fill Range Fills the range defined by the two addresses with the value
entered in Data/Opcode.
Read Range Reads the memory range defined by the two addresses.
This is used to read off-chip memory when using devices
that support extended memory, such as the PIC17CXXX.
Auto Select Auto Increment to increment to the next address after
Increment each Read/Write.
Note:
Auto increment increments to the next address, displays the next
address, and reads the contents at the address. If you are using
Auto Increment to read a range, enter the address of the memory
area minus one because the first read will increment the address.
Part
Read Click Read to read the data at a specified address.
Close Click Close to exit the Modify dialog.
Caution: The Program Counter should not be changed through the Modify
dialog. Instead, use the Change Program Counter dialog.
1.11.15
Tile Horizontal
The Window > Tile Horizontal command sizes open windows in a horizontal
format making each window as wide as possible to allow you to see as much
of each line in as many windows as possible. The command arranges all open
windows in a tile pattern, placing the windows above one another. Excess
windows are tiled in a horizontal pattern in the lower part of the screen.
Windows containing the output from commands run by the Tools > DOS
Command To Window command are arranged preferentially at the top of the
screen.
 2001 Microchip Technology Inc.
DS51025E-page 213
MPLAB IDE
Reference
Write Enter new data in the Data/Opcode field, and click Write to
modify the data at the specified address. (You can enter
data in symbolic format.) When data is modified, all the
appropriate windows are updated with the new information.
MPLAB® IDE User’s Guide
1.11.16
Tile Vertical
Window > Tile Vertical command sizes open windows vertically in columns to
allow you to see as many lines as possible in each window.
The Tile Vertical command arranges all open windows in a tile pattern,
placing them side by side so that each window is as deep as possible.
1.11.17
Cascade
The Window > Cascade command arranges all open windows in a cascade
pattern.
1.11.18
Iconize All
Window > Iconize All makes all windows into icons.
1.11.19
Arrange Icons
Window > Arrange Icons arranges all iconized windows so that their icons are
visible in rows at the bottom of the desktop. Open windows are not affected by
this command.
DS51025E-page 214
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.11.20
Open Windows
Open windows are listed at the end of the Window commands.
Whenever you open a window, MPLAB IDE records the name in the list,
ordering it so that the windows you have used most recently always appear at
the top. Click on a window name to jump to that window.
More When the Windows list contains more files than can be disWindows played on the menu, More Windows is automatically added
to the Windows menu. The command opens a dialog that
displays the entire list of windows. To open a window from
the list, either double-click the window name in the list, or
select the name and press the Open button.
The More Windows dialog box also provides additional
options. The settings of the additional options are remembered and become the default for the next time you use this
dialog.
Part
MPLAB IDE
Reference
Figure 1.81: More Windows Dialog
Changed
Windows Only
Named Files
Unnamed Files
Templates
Command Output
 2001 Microchip Technology Inc.
Displays only windows that have been changed since
opening.
Lists all windows having an associated file name.
Lists all windows that do not have an associated file
name.
Lists all template windows.
Lists all windows containing command output obtained
by selecting Tools > DOS Command to Window.
DS51025E-page 215
MPLAB® IDE User’s Guide
1.12 Help Menu
1.12.1
Release Notes (Shift+F1)
Help > Release Notes opens and displays the recent change history of
MPLAB IDE software. The Release Notes are contained in the file
README.LAB.
1.12.2
Tool Release Notes
If you are using additional tools, there may be an item on the Help menu on
release notes for those tools.
1.12.3
MPLAB IDE Help
Help > MPLAB IDE Help contains help on using MPLAB IDE.
1.12.4
Editor Help
Help > MPLAB Editor Help contains help on using the MPLAB Editor.
1.12.5
Error Help
Help > MPLAB Error Help contains help on selected MPLAB IDE error
messages.
1.12.6
MPASM Assembler Help
Help > MPASM Assembler Help opens an on-line version of the MPASM
User’s Guide with MPLINK and MPLIB (DS33014) with MPASM assemblerspecific information. Click on the green, underlined items to get more
information.
MPASM Assembler Help also contains a Quick Reference Guide that includes
assembly directives and device-specific instruction sets.
1.12.7
MPLINK Linker Help
Help > MPLINK Linker Help opens an on-line version of the MPASM User’s
Guide with MPLINK and MPLIB (DS33014) with MPLINK linker- and MPLIB
librarian-specific information. Click on the green, underlined items to get more
information.
1.12.8
Tool Help
If you are using additional tools, there may be an item on the Help menu on
help for those tools.
DS51025E-page 216
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Menu Options
1.12.9
About
Help > About displays:
• MPLAB IDE Version
• Microchip’s Address
• Processor Version
• Disassembler Version
• Information on other registered applications
Part
MPLAB IDE
Reference
Figure 1.82: About Help Dialog
 2001 Microchip Technology Inc.
DS51025E-page 217
MPLAB® IDE User’s Guide
NOTES:
DS51025E-page 218
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
Chapter 2. MPLAB IDE Toolbar and Status Bar Definitions
2.1
MPLAB IDE Toolbars
2.1.1
Edit Toolbar
The Edit toolbar contains buttons that are commonly used when editing
source code.
Figure 2.1: Edit Toolbar
The default buttons are:
 2001 Microchip Technology Inc.
Part
Change toolbar
File New
File Open
File Save
Cut
Copy
Paste
Print
Find
Repeat Last Find
Replace
Repeat Last Replace
Undo Edit
Indent
Unindent
Goto Line
Toggle Line Numbers
Help Contents
MPLAB IDE
Reference
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
DS51025E-page 219
MPLAB® IDE User’s Guide
2.1.2
Debug Toolbar
The Debug toolbar contains buttons that are commonly used when running
and debugging code.
Figure 2.2: DebugToolbar
The default buttons are:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
2.1.3
Change toolbar
Run Program
Halt Program
Step Through Program
Step Over
Reset System
Change PC
Execute Opcode
New Watch Window
Modify Window
Break Point
Trace Point
Trigger
Clear All Breaks
Conditional Break
Halt Trace
System Reset
Help Release Notes
Project Toolbar
The Project toolbar contains icons that are commonly used when running and
debugging code.
Figure 2.3: Project Toolbar
The default buttons are:
1. Change toolbar
DS51025E-page 220
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Status Bar Definitions
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
2.1.4
New Project
Open Project
Close Project
Save Project
Edit Project
Make Project
Build All
Build Node
Install Tools
Help
User Defined Toolbar
The User Defined toolbar is intended to be customized to contain buttons that
meet the individual user’s needs.
Part
Figure 2.4: User Defined Toolbar
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
 2001 Microchip Technology Inc.
MPLAB IDE
Reference
It initially contains the following buttons:
Change Toolbar
Open Project
Save Project
Find
Cut
Copy
Paste
Save File
Run
Halt
Step
Step Over
Reset
Program Memory Window
File Registers Window
Special Function Registers Window
New Watch Window
Make Project
DS51025E-page 221
MPLAB® IDE User’s Guide
2.2
MPLAB IDE Status Bar
The Status Bar indicates such current information as cursor position,
development mode and device, and active toolbar.
Figure 2.5: Status Bar
Typical
Entry
Title
Line No., Column–Windows
Open
Ln 1 Col 1
2.00.00
Or, displays MPLAB IDE Version
Number when no windows are
open
Lines in File
72
File Modified
#
Write/Read Only
WR
Text Wrap
No Wrap
Insert/Strikeover
INS
Current Processor
PIC16C61
Current Program Counter
pc:0x5f
Current w Register Value
Status Bits
W:0x00
ov Z dc c
Global Break Enable
Bk On
DS51025E-page 222
Result from Double
Clicking
Description
Displays current line number and column Opens Goto Line Dialog
in file
MPLAB IDE Version Number
No Action
Displays number of lines in current text
file
Displays # Symbol if file has been
changed since opening
Displays Write/Read Only Status.
WR = Editable File
RO = Read Only File
Displays current wrap mode and wrap
column if text wrap is on
Example 1: NoWrap
Example 2: WR 72
Useful for text files. Use Options >
Current Editor Modes to change wrap
column.
Toggles typing mode between insert and
strikeover
INS = Insert Characters
OVR = Type over characters
Displays the currently selected
processor
Displays the current program counter
Displays current w register value
Upper Case = Set
(1)
Lower Case = Reset (0)
Displays current status of Global Break
Enable
No Action
No Action
Toggles between write and
read only for files that you
have access to
Toggles between wrap and
no wrap
No Wrap
Wrap at Column 72
Toggles between INS and
OVR
No Action
Opens Change Program
Counter dialog
No Action
No Action
Toggles Global Break
Enable On and Off
 2001 Microchip Technology Inc.
MPLAB IDE Toolbar and Status Bar Definitions
Title
Typical
Entry
Current Development Mode
Sim
Processor Frequency
4 MHz
Current Toolbar
Edit
Description
Result from Double
Clicking
Displays Current Development Mode.
Displays Development
Examples:
Mode Dialog
EO = Editor Only
Sim = Simulator – MPLAB SIM
Si = Simulator – SIMICE
ICE = Emulator – MPLAB ICE 2000
Em = Emulator – PICMASTER emulator
Displays current processor frequency
Opens processor clock
dialog
Displays current toolbar
No Action
Part
MPLAB IDE
Reference
 2001 Microchip Technology Inc.
DS51025E-page 223
MPLAB® IDE User’s Guide
NOTES:
DS51025E-page 224
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
Appendix A. MPLAB IDE Key Mapping Functions
A.1
INTRODUCTION
This appendix lists the available MPLAB IDE key mapping functions.
A.2
MPLAB IDE KEY MAPPING FUNCTIONS
Key Map Function
Definition
Default Key
Assignment
“Move Cursor to Bottom of Window”
Ctrl+PgDn
CursorBottomOfWindowSelect
“Move Cursor to Bottom of Window Selecting”
Ctrl+Shift+PgDn
CursorDown
“Move Cursor Down”
Down
CursorDownSelect
“Move Cursor Down Selecting”
Shift+Down
CursorEndOfFile
“Goto End of File”
Ctrl+End
CursorEndOfFileSelect
“Goto End of File Selecting”
Ctrl+Shift+End
CursorEndOfLine
“Move Cursor to End of Line”
End
CursorEndOfLineSelect
“Move Cursor to End of Line Selecting”
Shift+End
CursorLeft
“Move Cursor Left”
Left
CursorLeftSelect
“Move Cursor Left Selecting”
Shift+Left
CursorLeftWord
“Move Cursor Left by Word”
Ctrl+Left
CursorLeftWordSelect
“Move Cursor Left by Word Selecting”
Ctrl+Shift+Left
CursorPageDown
“Page Down”
PgDn
CursorPageDownSelect
“Page Down Selecting”
Shift+PgDn
CursorPageUp
“Page Up”
PgUp
CursorPageUpSelect
“Page Up Selecting”
Shift+PgUp
CursorRight
“Cursor Right”
Right
CursorRightSelect
“Cursor Right Selecting”
Shift+Right
CursorRightWord
“Cursor Right by Word”
Ctrl+Right
CursorRightWordSelect
“Cursor Right by Word Selecting”
Ctrl+Shift+Right
CursorStartOfFile
“Cursor Start of File”
Ctrl+Home
CursorStartOfFileSelect
“Cursor Start of File Selecting”
Ctrl+Shift+Home
CursorStartOfLine
“Cursor Start of Line”
Home
CursorStartOfLineSelect
“Cursor Start of Line Selecting”
Shift+Home
CursorStartOfText
“Cursor Start of Text” Alt Home
Alt+Home
CursorStartOfTextSelect
“Cursor Start of Text Selecting”
Alt+Shift+Home
CursorTopOfWindow
“Cursor Top of Window”
Ctrl+PgUp
 2001 Microchip Technology Inc.
DS51025E-page 225
Part
Appendices
CursorBottomOfWindow
MPLAB® IDE User’s Guide
Key Map Function
Definition
Default Key
Assignment
CursorTopOfWindowSelect
“Cursor Top of Window Selecting”
Ctrl+Shift+PgUp
CursorUp
“Cursor Up”
Up
CursorUpSelect
“Cursor Up Selecting”
Shift+Up
DebugAnimate
“Animate”
Ctrl+F9
DebugBreak
“Set Break Settings”
F2
DebugCenterDebug
“Center Debug Location”
DebugChangePC
“Change Program Counter”
DebugClearAll
“Clear All Qualifiers”
DebugClearMemory
“Clear Program Memory”
DebugConditionalBreak
“Conditional Break”
DebugExecuteOpcode
“Execute an Opcode”
DebugHalt
“Halt the Processor”
F5
DebugHaltTrace
“Halt the Trace”
Shift+F5
DebugPerformanceAnalysis
“Performance Analysis”
DebugPORReset
“Power-On-Reset”
Ctrl+Shift+F5
DebugStep
“Step”
F7
DebugReset
“Reset Processor”
F6
DebugRun
“Run”
F9
DebugStepOver
“Step Over”
F8
DebugStepTrace
“Step The Trace Window”
Shift+F7
DebugAsyncStim
“Asynchronous Stimulus”
DebugClockStim
“Clock Stimulus”
DebugPinStim
“Pin Stimulus”
DebugRegStim
“Register Stimulus”
DebugSystemReset
“System Reset”
DebugTrace
“Trace Settings”
DebugTrigger
“Trigger Settings”
DebugUpdateRegisters
“Update Registers”
EditCancelSelection
Ctrl+Shift+F2
Ctrl+Shift+F3
keypad5
EditClearUndo
“Forgets details of all stored undo actions”
EditCopy
“Copies highlighted text to the clipboard”
Ctrl+C
Ctrl+Ins
EditCut
“Cuts highlighted text to the clipboard”
Ctrl+X
Shift+Del
DS51025E-page 226
 2001 Microchip Technology Inc.
MPLAB IDE Key Mapping Functions
Key Map Function
EditDeleteBackwards
Definition
“Delete Character Backwards”
Default Key
Assignment
Backspace
Ctrl+H
EditDeleteForwards
“Delete Forwards”
Del
EditDeleteLine
“Deletes the entire line containing the cursor”
Ctrl+Shift+K
EditDeleteSelection
“Delete Selection”
EditDeleteToEndOfLine
“Deletes from the cursor to end of line”
Ctrl+K
EditFind
“Searches for a text string”
F3
EditGotoLine
“Moves the cursor to a specific line”
Ctrl+G
EditInsertHardTab
“Insert Hard Tab”
EditInsertSoftTab
“Insert Soft Tab”
EditInsertTab
“Insert Tab”
Tab
Ctrl+I
EditMarkUnchanged
“Mark File As Unchanged”
EditNewLine
“Insert New Line”
Enter
Ctrl+M
EditPaste
“Pastes the clipboard at the cursor position”
Ctrl+V
Shift+Ins
EditRepeatLastFind
“Repeats the last search action exactly”
Shift+F3
EditRepeatLastReplace
“Repeats the last replace action exactly”
Shift+F4
EditReplace
“Replaces a text string”
F4
EditSelectAll
“Highlights all the text in the current window”
EditSelectLine
“Select Line”
EditSelectWord
“Highlights the word containing the cursor”
EditShowCursor
“Scrolls the window to bring the cursor into view”
EditShowNextLine
“Show Next Line”
EditShowNextPage
“Show Next Page”
EditShowPreviousLine
“Show Previous Line”
EditShowPreviousPage
“Show Previous Page”
EditSplitLine
“Split Line”
EditTextIndent
“Moves text right by one tab stop”
EditTextInsertASCIICode
“Inserts an arbitrary character code”
EditTextLowercaseSelection
“Converts the highlighted text to lower case”
EditTextMatchBrace
“Moves to a matching brace character”
Ctrl+B
EditTextMatchBraceSelect
“Moves to a matching brace character and highlights”
Shift+Ctrl+B
Ctrl+Shift+O
Ctrl+Q
DS51025E-page 227
Appendices
 2001 Microchip Technology Inc.
Part
MPLAB® IDE User’s Guide
Key Map Function
Default Key
Assignment
Definition
EditTextTransposeCharacters
“Swaps the characters to left and right of the cursor”
EditTextUnIndent
“Moves text left by one tab stop”
EditTextUppercaseSelection
“Converts the highlighted text to upper case”
EditTextWidenBraceSelect
“Highlights the next largest braced area of text”
Shift+Ctrl+W
EditUndo
“Undoes the last edit action”
Ctrl+Z
ExecDosCommand
“Runs a DOS command and captures output”
F11
ExecRepeatDosCommand
“Repeats the last DOS command-with-capture”
Ctrl+F11
FileAbandon
“Abandon File”
FileClose
“Closes the file in the current window”
FileCloseAll
“Closes all open files”
Shift+F9
FileExit
“Ends your MPLAB IDE session”
Alt+F4
FileImportDownloadToMemory
“Download A Hex file to the Engine”
FileImportDownloadToTarget
“Download A Hex file to the Target”
FileImportReadTarget
“Copy Engine Memory to Target”
FileInsert
“Inserts a file at the position of the cursor”
FileName
“Changes the file name for the current window”
FileNew
“Creates a new, empty edit window”
Ctrl+N
FileOpen
“Opens an existing file”
Ctrl+O
FilePrint
“Prints the current file”
Ctrl+P
FilePrintSetup
“Changes details of the current printer”
FileSave
“Saves the current file to disk”
FileSaveAll
“Saves all open files to disk”
FileSaveAs
“Saves the current file to disk”
FileSaveHex
“Save Hex File”
FileSaveTrace
“Save Trace File”
FileSimulatorStimulus
“Load Simulator Stimulus File”
FileView
“Opens an existing file in read-only mode”
FileWrite
“Writes the current file to disk”
HelpAbout
“Gives information about this MPLAB IDE version”
HelpBugs
“MPLAB IDE Bug List”
HelpCommands
“Gives help on MPLAB IDE commands”
HelpContents
“Enters the MPLAB IDE help file at the Contents
screen”
HelpEditor
“Editor Help”
DS51025E-page 228
Ctrl+T
Ctrl+S
F1
 2001 Microchip Technology Inc.
MPLAB IDE Key Mapping Functions
Key Map Function
Definition
“MPASM Assembler Help”
HelpMpc
“MPLAB C Help”
HelpOnHelp
“Gives help on using the help system”
HelpPICmicro
“PICmicro Users Guide”
HelpReleaseNotes
“Release Notes”
OptionsColors
“Edit Color Options”
OptionsCommunicationsPort
“Set Communications Address”
OptionsCurrent
“Sets modes for the current window and file”
OptionsDefault
“Sets default modes for files”
OptionsDevelopmentMode
“Select Development Mode”
OptionsEnvironmentSetup
“Setup Environment”
OptionsHardware
“Select Hardware Options”
OptionsKeyMapping
“Changes the mapping of keys to commands”
OptionsLoadSetup
“Load Setup File”
OptionsMultiProcessor
“Setup Multi-Processor”
OptionsPreferences
“Sets MPLAB IDE configuration options”
OptionsResetModes
“Sets the current file/window modes to default values”
OptionsSaveSetup
“Save Setup File”
OptionsScreenFontANSI
“Sets the screen font to the standard ANSI fixedpitch font”
OptionsScreenFontOEM
“Sets the screen font to the standard OEM font”
OptionsScreenFontOther
“Selects the screen font from all available fixedpitch fonts”
OptionsScreenFontSystem
“Sets the screen font to the standard system font”
OptionsSimulatorIOSetup
“Setup Simulator I/O”
OptionsToggleInsertMode
“Toggle Insert Mode”
OptionsToggleLineNumbers
“Toggle Line Numbers”
OptionsToggleStatusBar
“Hides or shows the status bar”
OptionsToolbarBottom
“Moves the toolbar to the bottom of the window”
OptionsToolbarFloat
“Makes the toolbar a floating window”
OptionsToolbarHide
“Makes the toolbar invisible”
OptionsToolbarLeft
“Moves the toolbar to the left of the window”
OptionsToolbarRight
“Moves the toolbar to the right of the window”
OptionsToolbarShow
“Makes the toolbar visible”
 2001 Microchip Technology Inc.
Shift+F1
Ctrl+F7
Part
Ins
DS51025E-page 229
Appendices
HelpMpasm
Default Key
Assignment
MPLAB® IDE User’s Guide
Key Map Function
Default Key
Assignment
Definition
OptionsToolbarTop
“Moves the toolbar to the top of the window”
ProjectBuildAll
“Build Full Project”
Ctrl+F10
ProjectBuildNode
“Build Node”
Alt+F10
ProjectCloseProject
“Close Project”
ProjectCompileSingle
“Compile Single File”
Alt+F10
ProjectEditProject
“Edit the Project Definition”
Ctrl+F3
ProjectMakeProject
“Make the Current Project”
F10
ProjectMakeSetup
“Setup the Project Make”
ProjectNewProject
“Create a New Project”
ProjectOpenProject
“Open a Project”
ProjectSaveProject
“Save the Current Project”
SwapToolbar
“Swap Toolbar”
SysSetMenuMode
“Set Menu Mode”
TemplateDelete
“Deletes a template from a template file”
TemplateEdit
“Edits a template from a template file”
TemplateFileAttach
“Loads a template file for use”
TemplateFileCreate
“Creates an empty template file”
TemplateFileDetach
“Releases an attached template file”
TemplateFileSave
“Saves an altered template file to disk”
TemplateFindMark
“Searches for a template marker in the current window”
TemplateInsert
“Inserts a template at the position of the cursor”
TemplateInsertMark
“Inserts a template marker at the position of the
cursor”
TemplateNew
“Creates a new window for a template”
TemplateStore
“Saves a template into a template file”
TemplateStoreAs
“Saves a template into a template file”
ToolsEmulatorConfiguration
“Setup Emulator Configuration”
ToolsProgramHeader
“Program Emulator Header”
ToolsProgramPod
“Program Emulator Pod”
ToolsVerifyEmulator
“Verify Emulator Components”
WindowAbsoluteListing
“Absolute Listing”
WindowArrangeIcons
“Arranges all iconic windows neatly”
WindowCascade
“Arranges windows in a cascade pattern”
WindowClose
“Closes the current window”
DS51025E-page 230
Ctrl+F2
Ctrl+F4
 2001 Microchip Technology Inc.
MPLAB IDE Key Mapping Functions
Key Map Function
Definition
WindowDuplicate
“Makes a duplicate of the current window”
WindowEeprom
“EEPROM Memory Window”
WindowFileRegisters
“File Register Memory”
WindowIconize
“Iconize Window”
WindowIconizeAll
“Makes all windows into icons”
WindowLoadWatch
“Load a Watch Window”
WindowMaximize
“Maximize Window”
WindowModify
“Modify Window”
WindowNewWatch
“Create New Watch Window”
WindowNext
“Activates the next non-iconic window”
WindowProgramMemory
“Program Memory Window”
WindowRestore
“Restore Window”
WindowSelect
“Chooses a window to activate from a list”
Default Key
Assignment
Ctrl+W
WindowSpecialFunctionRegisters “Special Functions Register Window”
WindowStack
“Stack Window”
WindowStopwatch
“Stopwatch Window”
WindowSymbolList
“Symbol List Window”
WindowTileHorizontal
“Tiles windows to maximize height”
WindowTileVertical
“Tiles windows to maximize width”
WindowTrace
“Trace Window”
WindowWiden
“Maximizes the width of the current window”
Ctrl+F8
Part
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NOTES:
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 2001 Microchip Technology Inc.
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MPLAB® IDE USER’S GUIDE
Appendix B. MPLAB Editor Default Key Commands
B.1
INTRODUCTION
This appendix describes the default key commands specific to the MPLAB
Editor and lists the equivalent menu commands (if any).
The key commands perform the most common operations quickly. These key
commands can be modified to suit individual preferences. By default, no
prefix keys are enabled, so that only single keys are available for mapping.
For a table that lists the keys with the names of the functions used in the key
mapping dialog, see Appendix A: MPLAB IDE Key Mapping Functions.
B.2
HIGHLIGHTS
The categories for the default key commands are:
• Function Keys
• Movement Keys
• Control Keys
• Formatting and Editing Keys
B.3
FUNCTION KEYS
Displays the appropriate help topic when pressed from a
window (e.g., File Registers Window).
F2
Executes the Debug > Break Settings command to open
the Break Settings dialog.
F3
Executes the Edit > Find command to find strings.
F4
Executes the Edit > Replace command to replace strings.
F5
Executes the Debug > Halt command to halt debugging.
F6
Executes the Debug > Reset command to issue a reset to
the emulated or simulated processor.
F7
Executes the Debug > Step command to execute a single
opcode from program memory.
F8
Executes the Debug > Step Over command to step over a
call instruction in program memory.
F9
Executes the Debug > Run command to issue a run to the
emulated/simulated processor.
F10
Executes the Project > Make Project command to initiate a
“make” for the current project.
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F1
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DS51025E-page 234
F11
Executes the Execute > DOS Command To Window command to run a DOS command and capture its output in a
window.
Shift+F3
Executes the Edit > Repeat Find command to repeat the
last find operation.
Shift+F4
Executes the Edit > Repeat Replace command to repeat
the last replace operation.
Shift+F5
Executes the Debug > Halt Trace command to halt the
execution trace for the simulated processor.
Shift+F9
Executes the File > Close All command to close all files
and windows.
Ctrl+F2
Executes the Project > Open Project command to open the
Open Project Dialog.
Ctrl+F3
Executes the Project > Edit Project command to open the
Edit Project Dialog.
Ctrl+F7
Executes the Options > Environment Setup to open the
Environment Setup dialog.
Ctrl+F8
Executes the Windows > Show Symbol List command to
open the Symbol List dialog.
Ctrl+F10
Executes the Project > Build All command to build all the
source files for the current project.
Alt+F4
Executes the File > Exit command to end your MPLAB
Editor session.
Alt+F10
Executes the Project > Build Node command to build the
current node.
Shift+Ctrl+F2
Executes the Debug > Clear Program Memory command to
clear all of program memory to an “erased” state.
Shift+Ctrl+F3
Executes the Debug > System Reset command to reset the
entire emulator system.
Shift+Ctrl+F5
Executes the Debug > POR Reset Emulation command to
open the POR Reset dialog.
 2001 Microchip Technology Inc.
MPLAB Editor Default Key Commands
B.4
MOVEMENT KEYS
Adding <Shift> to cursor movement keys causes a text selection to be
extended.
Note that where the <Alt> key is combined with either an arrow key, or
<Home>, <End>, <PgDn>, <PgUp>, <Ins> or <Del>, you must use the keys in
the extended key areas, and not those in the numeric keypad.
Moves the cursor up by one line
Shift+Up
Moves the cursor up by one line, extending the highlighting
Down
Moves the cursor down by one line
Shift+Down
Moves the cursor down by one line, extending the
selection
Left
Moves the cursor left by one character
Shift+Left
Moves the cursor left by one character, extending the
selection
Ctrl+Left
Moves the cursor left by one word
Ctrl+Shift+Left
Moves the cursor left by one word, extending the
selection
Right
Moves the cursor right by one character
Shift+Right
Moves the cursor right by one character, extending
the selection
Ctrl+Right
Moves the cursor right by one word
Ctrl+Shift+Right
Moves the cursor right by one word, extending the
selection
PgDn
Moves the cursor down by one page
Shift+PgDn
Moves the cursor down by one page, extending the
selection
Ctrl+PgDn
Moves the cursor to the start of the last line in the window
Ctrl+Shift+PgDn
Moves the cursor to the start of the last line in the window, extending the selection
PgUp
Moves the cursor up by one page
Shift+PgUp
Moves the cursor up by one page, extending the
selection
Ctrl+PgUp
Moves the cursor to the start of the first line of the
window
Ctrl+Shift+PgUp
Moves the cursor to the start of the first line of the
window, extending the selection
Home
Moves the cursor to the start of the line
Shift+Home
Moves the cursor to the start of the line, extending the
selection
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DS51025E-page 236
Ctrl+Home
Moves the cursor to the start of the file
Ctrl+Shift+Home
Moves the cursor to the start of the file, extending the
selection
Alt+Home
Moves the cursor to the first non-white-space character in the current line
Alt+Shift+Home
Moves the cursor to the first non-white-space character in the current line, extending the selection
End
Moves the cursor to the end of the line
Shift+End
Moves the cursor to the end of the line, extending the
selection
Ctrl+End
Moves the cursor to the end of the file
Ctrl+Shift+End
Moves the cursor to the end of the file, extending the
selection
 2001 Microchip Technology Inc.
MPLAB Editor Default Key Commands
B.5
CONTROL KEYS
Moves the cursor to the brace character matching the
brace the cursor is currently on, and highlights all the
text between and including the brace characters
Ctrl+C
Executes the Edit > Copy command to copy selected
text to the clipboard
Ctrl+G
Executes the Edit > Goto Line command to move the
cursor to a specific line
Ctrl+H
Deletes the character to the left of the cursor
Ctrl+I
Inserts a TAB character, or the required number of
spaces to bring the cursor to the next TAB stop,
depending on whether the current window’s Window
Mode is set for hard or soft tabs.
Ctrl+K
Executes the Edit > Delete To End Of Line command
to delete everything from the cursor position to the
end of the line
Ctrl+Shift+K
Executes the Edit > Delete Line command to delete
the entire line that the cursor is in
Ctrl+N
Executes the File > New command to create a new,
empty edit window
Ctrl+O
Executes the File > Open command to open an existing file
Ctrl+Shift+O
Splits the current line at the position of the cursor,
leaving the cursor unmoved
Ctrl+P
Executes the File > Print command to print the file
showing in the current window
Ctrl+Q
Executes the Edit > Text Insert ASCII Code command to insert a character specified by its ASCII
code number
Ctrl+S
Executes the File > Save command to save the current file to disk
Ctrl+T
Executes the Edit > Text Transpose Characters command to transpose the character under the cursor
with the one to its left
Ctrl+V
Executes the Edit > Paste command to paste data
from the clipboard into the current window
Ctrl+W
Executes the Window > Select command to let you
choose between many open windows
Ctrl+Shift+W
With the cursor between braces, this command highlights the closest (inner-most) pair of braces and all
the text between them
Ctrl+X
Executes the Edit > Cut command to cut selected text
to the clipboard
Ctrl+Z
Executes the Edit > Undo command to undo the last
edit action
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Part
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Ctrl+Shift+B
MPLAB® IDE User’s Guide
B.6
FORMATTING AND EDITING KEYS
DS51025E-page 238
Enter
Inserts a new line
BackSpace
Deletes the character to the left of the cursor
Del
Deletes the character to the right of the cursor
Shift+Del
Executes the Edit > Cut command to cut selected text
to the clipboard
Ins
Toggles the current window between Insert and Overwrite modes
Shift+Ins
Executes the Edit > Paste command to paste data
from the clipboard into the current window
Ctrl+Ins
Executes the Edit > Copy command to copy selected
text to the clipboard
Tab
Inserts a tab character, or the required number of
spaces to bring the cursor to the next tab stop,
depending on whether the current window’s Window
Mode is set for hard or soft tabs.
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
Appendix C. File Extensions Used by MPLAB IDE
The default extensions of files used by the MPLAB IDE are listed below:
Assembly language source file
∗.C
C source file
∗.CFG
Configuration/setup files
∗.CSV
Trace save files (MPLAB ICE 2000 only)
∗.COD
Contains symbolic information and object code
∗.DAT
Simulator data file
∗.ERR
Error file generated by assembler/compiler
∗.H
C include file
∗.HEX
PICmicro machine code in hex format
∗.HLP
Help file
∗.INC
Assembly language include file
∗.INI
MPLAB IDE and language tool configuration file
∗.KEY
MPLAB IDE key mappings
∗.LKR
MPLINK linker script
∗.LST
Absolute listing file generated by assembler/compiler
∗.MTC
Language tool configuration file
∗.PJT
Contains most of the information related to a project
∗.REG
Stimulus register file
∗.STI
Stimulus pin file
∗.TB
Conditional break trace file
∗.TBR
Toolbar file
∗.TPL
Template file
∗.TRC
Trace save files
∗.TXT
Trace save file other than MPLAB ICE 2000
∗.WAT
Watch window file
Part
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∗.ASM
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NOTES:
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 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
Glossary
Introduction
To provide a common frame of reference, this glossary defines the terms for
several Microchip tools.
Highlights
This glossary contains terms and definitions for the following tools:
• MPLAB IDE, MPLAB SIM Simulator, MPLAB Editor
• MPASM Assembler, MPLINK Linker, MPLIB Librarian
• MPLAB CXX C Compilers
• MPLAB ICE 2000 In-Circuit Emulator, PICMASTER Emulator
• MPLAB ICD In-Circuit Debugger
• PICSTART Plus, PRO MATE programmer
Terms
Absolute Section
A section with a fixed (absolute) address which can not be changed by the
linker.
Access RAM (PIC18CXXX Devices Only)
Special general purpose registers on PIC18CXXX devices that allow access
regardless of the setting of the bank select bit (BSR).
Alpha Character
Alpha characters are those characters, regardless of case, that are letters of
the alphabet: (a, b, …, z, A, B, …, Z).
Alphanumeric
Alphanumeric characters include alpha characters and numbers: (0,1, …, 9).
Application
A set of software and hardware developed by the user, usually designed to be
a product controlled by a PICmicro microcontroller.
Assemble
What an assembler does. See assembler.
Assembler
A language tool that translates a user’s assembly source code (.asm) into
machine code. MPASM is Microchip’s assembler.
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Assembly
A programming language that is once removed from machine language.
Machine languages consist entirely of numbers and are almost impossible for
humans to read and write. Assembly languages have the same structure and
set of commands as machine languages, but they enable a programmer to
use names (mnemonics) instead of numbers.
Assigned Section
A section which has been assigned to a target memory block in the linker
command file. The linker allocates an assigned section into its specified target
memory block.
Break Point – Hardware
An event whose execution will cause a halt.
Break Point – Software
An address where execution of the firmware will halt. Usually achieved by a
special break opcode.
Build
A function that recompiles all the source files for an application.
C
A high level programming language that may be used to generate code for
PICmicro MCUs, especially high-end device families.
Calibration Memory
A special function register or registers used to hold values for calibration of a
PICmicro microcontroller on-board RC oscillator.
COFF
Common Object File Format. An intermediate file format generated by the
MPLINK linker that contains machine code and debugging information.
Command Line Interface
Command line interface refers to executing a program on the DOS command
line with options. Executing MPASM assembler with any command line
options or just the file name will invoke the assembler. In the absence of any
command line options, a prompted input interface (shell) will be executed.
Compile
What a compiler does. See compiler.
Compiler
A language tool that translates a user’s C source code into machine code.
MPLAB C17 and MPLAB C18 are Microchip’s C compilers for PIC17CXXX
and PIC18CXXX devices, respectively.
DS51025E-page 242
 2001 Microchip Technology Inc.
Configuration Bits
Unique bits programmed to set PICmicro microcontroller modes of operation.
A configuration bit may or may not be preprogrammed. These bits are set in
the Options > Development Mode dialog for simulators or emulators and in
the _ _ CONFIG MPASM directive for programmers.
Control Directives
Control directives in the MPASM assembler permit sections of conditionally
assembled code.
Data Directives
Data directives are those that control the MPASM assembler’s allocation of
memory and provide a way to refer to data items symbolically; that is, by
meaningful names.
Data Memory
General purpose file registers (GPRs) from RAM on the PICmicro MCU
device being emulated. The File Register window displays data memory.
Directives
Directives provide control of the assembler’s operation by telling the MPASM
assembler how to treat mnemonics, define data, and format the listing file.
Directives make coding easier and provide custom output according to
specific needs.
Download
Download is the process of sending data from the PC host to another device,
such as an emulator, programmer or target board.
EEPROM
Electrically Erasable Programmable Read Only Memory. A special type of
PROM that can be erased electrically. Data is written or erased one byte at a
time. EEPROM retains its contents even when power is turned off.
Emulation
The process of executing software loaded into emulation memory as if the
firmware resided on the microcontroller device under development.
Emulation Memory
Program memory contained within the emulator.
Emulator
Hardware that performs emulation.
Emulator System
The MPLAB ICE 2000 emulator system includes the pod, processor module,
device adapter, cables, and MPLAB IDE software. The PICMASTER emulator
system includes the pod, device-specific probe, cables, and MPLAB IDE
software.
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Event
A description of a bus cycle which may include address, data, pass count,
external input, cycle type (fetch, R/W), and time stamp. Events are used to
describe triggers and break points.
Executable Code
See HEX Code.
Export
Send data out of the MPLAB IDE in a standardized format.
Expressions
Expressions are used in the operand field of the MPASM assembler’s source
line and may contain constants, symbols, or any combination of constants and
symbols separated by arithmetic operators. Each constant or symbol may be
preceded by a plus or minus to indicate a positive or negative expression.
Note:
MPASM assembler expressions are evaluated in 32-bit integer
math. (Floating point is not currently supported.)
Extended Microcontroller Mode
(PIC17CXXX and PIC18CXXX Devices Only)
In extended microcontroller mode, on-chip program memory as well as
external memory is available. Execution automatically switches to external if
the program memory address is greater than the internal memory space of
the PIC17CXXX or PIC18CXXX device.
External Input Line (MPLAB ICE 2000 only)
An external input signal logic probe line (TRIGIN) for setting an event based
upon external signals.
External Linkage
A function or variable has external linkage if it can be accessed from outside
the module in which it is defined.
External RAM (PIC17CXXX and PIC18CXXX Devices Only)
Off-chip Read/Write memory.
External Symbol
A symbol for an identifier which has external linkage.
External Symbol Definition
A symbol for a function or variable defined in the current module.
External Symbol Reference
A symbol which references a function or variable defined outside the current
module.
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 2001 Microchip Technology Inc.
External Symbol Resolution
A process performed by the linker in which external symbol definitions from all
input modules are collected in an attempt to update all external symbol
references. Any external symbol references which do not have a
corresponding definition cause a linker error to be reported.
File Registers
On-chip general purpose and special function registers.
Flash
A type of EEPROM where data is written or erased in blocks instead of bytes.
FNOP
Forced No Operation. A forced NOP cycle is the second cycle of a two-cycle
instruction. Since the PICmicro MCU architecture is pipelined, it prefetches
the next instruction in the physical address space while it is executing the
current instruction. However, if the current instruction changes the program
counter, this prefetched instruction is explicitly ignored, causing a forced NOP
cycle.
GPR
See Data Memory.
Halt
A function that stops the emulator. Executing Halt is the same as stopping at a
break point. The program counter stops, and the user can inspect and change
register values, and single step through code.
HEX Code
Executable instructions assembled or compiled from source code into
standard hexadecimal format code. Also called executable or machine code.
HEX code is contained in a HEX file.
HEX File
An ASCII file containing hexadecimal addresses and values (HEX code)
suitable for programming a device. This format is readable by a device
programmer.
High Level Language
A language for writing programs that is of a higher level of abstraction from
the processor than assembler code. High level languages (such as C) employ
a compiler to translate statements into machine instructions that the target
processor can execute.
ICD
In-Circuit Debugger. MPLAB ICD is Microchip’s in-circuit debugger for
PIC16F87X devices. MPLAB ICD works with MPLAB IDE.
 2001 Microchip Technology Inc.
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ICE
In-Circuit Emulator. MPLAB ICE 2000 is Microchip’s in-circuit emulator that
works with MPLAB IDE.
IDE
Integrated Development Environment. An application that has multiple
functions for firmware development. The MPLAB IDE integrates a compiler,
an assembler, a project manager, an editor, a debugger, a simulator, and an
assortment of other tools within one Windows application. A user developing
an application can write code, compile, debug, and test an application without
leaving the MPLAB IDE desktop.
Identifier
A function or variable name.
Import
Bring data into the MPLAB Integrated Development Environment (IDE) from
an outside source, such as from a HEX file.
Initialized Data
Data which is defined with an initial value. In C, int myVar=5; defines a
variable which will reside in an initialized data section.
Internal Linkage
A function or variable has internal linkage if it can not be accessed from
outside the module in which it is defined.
Librarian
A language tool that creates and manipulates libraries. MPLIB is Microchip’s
librarian.
Library
A library is a collection of relocatable object modules. It is created by
assembling multiple source files to object files, and then using the librarian to
combine the object files into one library file. A library can be linked with object
modules and other libraries to create executable code.
Link
What a linker does. See Linker.
Linker
A language tool that combines object files and libraries to create executable
code. Linking is performed by Microchip’s linker, MPLINK.
Linker Script Files
Linker script files are the command files of MPLINK (.LKR). They define linker
options and describe available memory on the target platform.
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 2001 Microchip Technology Inc.
Listing Directives
Listing directives are those directives that control the MPASM assembler
listing file format. They allow the specification of titles, pagination and other
listing control.
Listing File
A listing file is an ASCII text file that shows the machine code generated for
each C source statement, assembly instruction, MPASM assembler directive,
or macro encountered in a source file.
Local Label
A local label is one that is defined inside a macro with the LOCAL directive.
These labels are particular to a given instance of a macro’s instantiation. In
other words, the symbols and labels that are declared as local are no longer
accessible after the ENDM macro is encountered.
Logic Probes
Up to 14 logic probes connected to the emulator. The logic probes provide
external trace inputs, trigger output signal, +5V, and a common ground.
Machine Code
Either object or executable code.
Macro
A collection of assembler instructions that are included in the assembly code
when the macro name is encountered in the source code. Macros must be
defined before they are used; forward references to macros are not allowed.
All statements following a MACRO directive and prior to an ENDM directive are
part of the macro definition. Labels used within the macro must be local to the
macro so the macro can be called repetitively.
Macro Directives
Directives that control the execution and data allocation within macro body
definitions.
Make Project
A command that rebuilds an application, re-compiling only those source files
that have changed since the last complete compilation.
MCU
Microcontroller Unit. An abbreviation for microcontroller. Also µC.
Memory Models
Versions of libraries and/or precompiled object files based on a device’s
memory (RAM/ROM) size and structure.
Microcontroller
A highly integrated chip that contains all the components comprising a
controller. Typically this includes a CPU, RAM, some form of ROM, I/O ports,
and timers. Unlike a general-purpose computer, which also includes all of
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these components, a microcontroller is designed for a very specific task – to
control a particular system. As a result, the parts can be simplified and
reduced, which cuts down on production costs.
Microcontroller Mode (PIC17CXXX and PIC18CXXX Devices Only)
One of the possible program memory configurations of the PIC17CXXX and
PIC18CXXX families of microcontrollers. In microcontroller mode, only
internal execution is allowed. Thus, only the on-chip program memory is
available in microcontroller mode.
Microprocessor Mode (PIC17CXXX and PIC18CXXX Devices Only)
One of the possible program memory configurations of the PIC17CXXX and
PIC18CXXX families of microcontrollers. In microprocessor mode, the on-chip
program memory is not used. The entire program memory is mapped
externally.
Mnemonics
Instructions that are translated directly into machine code. Mnemonics are
used to perform arithmetic and logical operations on data residing in program
or data memory of a microcontroller. They can also move data in and out of
registers and memory as well as change the flow of program execution. Also
referred to as Opcodes.
MPASM Assembler
Microchip Technology’s relocatable macro assembler. The MPASM assembler
is a DOS or Windows-based PC application that provides a platform for
developing assembly language code for Microchip’s PICmicro microcontroller
families. Generically, the MPASM assembler will refer to the entire
development platform including the macro assembler and utility functions.
The MPASM assembler will translate source code into either object or
executable code. The object code created by the MPASM assembler may be
turned into executable code through the use of the MPLINK linker.
MPLAB CXX
Refers to MPLAB C17 and MPLAB C18 C compilers.
MPLAB ICD
Microchip’s in-circuit debugger for PIC16F87X devices. MPLAB ICD works
with MPLAB IDE. The MPLAB ICD system consists of a module, header,
demo board (optional), cables, and MPLAB Software.
MPLAB ICE 2000
Microchip’s in-circuit emulator that works with MPLAB IDE.
MPLAB IDE
The name of the main executable program that supports the IDE with an
Editor, Project Manager, and Emulator/Simulator Debugger. The MPLAB IDE
software resides on the PC host. The executable file name is MPLAB.EXE.
MPLAB.EXE calls many other files.
DS51025E-page 248
 2001 Microchip Technology Inc.
MPLAB SIM Simulator
Microchip’s simulator that works with MPLAB IDE.
MPLIB Librarian
MPLIB is a librarian for use with COFF object modules (filename.o)
created using either MPASM v2.0, MPASMWIN v2.0, or MPLAB C v2.0 or
later.
MPLIB librarian will combine multiple object files into one library file. Then the
MPLIB librarian can be used to manipulate the object files within the created
library.
MPLINK Linker
MPLINK is a linker for the Microchip relocatable assembler, MPASM, and the
Microchip C compilers, MPLAB C17 or MPLAB C18. MPLINK linker also may
be used with the Microchip librarian, MPLIB. MPLINK linker is designed to be
used with MPLAB IDE, though it does not have to be.
MPLINK linker will combine object files and libraries to create a single
executable file.
MPSIM
The DOS version of Microchip’s simulator. MPLAB SIM simulator is the
newest simulator from Microchip.
MRU
Most Recently Used. Refers to files and windows available to be selected
from MPLAB IDE main pull down menus.
Nesting Depth
The maximum level to which macros can include other macros. Macros can
be nested to 16 levels deep.
Non Real-Time
Refers to the processor at a break point or executing single step instructions
or MPLAB IDE being run in simulator mode.
Node
MPLAB IDE project component.
NOP
No Operation. An instruction that has no effect when executed except to
advance the program counter.
Object Code
The intermediate code that is produced from the source code after it is
processed by an assembler or compiler. Relocatable code is code produced
by the MPASM assembler or MPLAB C17 and C18 C compilers that can be
run through the MPLINK linker to create executable code. Object code is
contained in an object file.
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Object File
A module which may contain relocatable code or data and references to
external code or data. Typically, multiple object modules are linked to form a
single executable output. Special directives are required in the source code
when generating an object file. The object file contains object code.
Object File Directives
Directives that are used only when creating an object file.
Off-Chip Memory (PIC17CXXX and PIC18CXXX Devices Only)
Off-chip memory refers to the memory selection option for the PIC17CXXX or
PIC18CXXX device where memory may reside on the target board, or where
all program memory may be supplied by the Emulator. The Memory tab
accessed from Options > Development Mode provides the Off-Chip Memory
selection dialog box.
Opcodes
Operational Codes. See Mnemonics.
Operators
Arithmetic symbols, like the plus sign ‘+’ and the minus sign ‘-’, that are used
when forming well-defined expressions. Each operator has an assigned
precedence.
Pass Counter
A counter that decrements each time an event (such as the execution of an
instruction at a particular address) occurs. When the pass count value
reaches zero, the event is satisfied. You can assign the Pass Counter to
break and trace logic, and to any sequential event in the complex trigger
dialog.
PC
Personal Computer or Program Counter.
PC Host
Any IBM or compatible Personal Computer running Windows 3.1x or
Windows 95/98, Windows NT, or Windows 2000. MPLAB IDE runs on 486 or
higher machines.
PICmicro MCUs
PICmicro microcontrollers (MCUs) refers to all Microchip microcontroller
families.
PICMASTER Emulator
The hardware unit that provides tools for emulating and debugging firmware
applications. This unit contains emulation memory, break point logic,
counters, timers, and a trace analyzer among some of its tools. MPLAB ICE
2000 is the newest emulator from Microchip.
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PICSTART Plus Programmer
A device programmer from Microchip. Programs 8, 14, 28, and 40 pin
PICmicro microcontrollers. Must be used with MPLAB Software.
Pod
The external emulator box that contains emulation memory, trace memory,
event and cycle timers, and trace/break point logic. Occasionally used as an
abbreviated name for the MPLAB ICE 2000 emulator.
Power-on-Reset Emulation
A software randomization process that writes random values in data RAM
areas to simulate uninitialized values in RAM upon initial power application.
Precedence
The concept that some elements of an expression are evaluated before
others; i.e., * and / before + and -. In MPASM assembler, operators of the
same precedence are evaluated from left to right. Use parentheses to alter
the order of evaluation.
Program Counter
A register that specifies the current execution address.
Program Memory
The memory area in a PICmicro microcontroller where instructions are stored.
Memory in the emulator or simulator containing the downloaded target
application firmware.
Programmer
A device used to program electrically programmable semiconductor devices
such as microcontrollers.
Project
A set of source files and instructions to build the object and executable code
for an application.
PRO MATE Programmer
A device programmer from Microchip. Programs all PICmicro microcontrollers
and most memory and Keeloq devices. Can be used with MPLAB IDE or
stand-alone.
Prototype System
A term referring to a user’s target application, or target board.
PWM Signals
Pulse Width Modulation Signals. Certain PICmicro MCU devices have a PWM
peripheral.
Qualifier
An address or an address range used by the Pass Counter or as an event
before another operation in a complex trigger.
 2001 Microchip Technology Inc.
DS51025E-page 251
MPLAB® IDE User’s Guide
Radix
The number base, HEX, or decimal, used in specifying an address and for
entering data in the Window > Modify command.
RAM
Random Access Memory (Data Memory).
Raw Data
The binary representation of code or data associated with a section.
Real-Time
When released from the halt state in the emulator or MPLAB ICD mode, the
processor runs in real-time mode and behaves exactly as the normal chip
would behave. In real-time mode, the real-time trace buffer of MPLAB ICE
2000 is enabled and constantly captures all selected cycles, and all break
logic is enabled. In the emulator or MPLAB ICD, the processor executes in
real-time until a valid break point causes a halt, or until the user halts the
emulator.
In the simulator real-time simply means execution of the microcontroller
instructions as fast as they can be simulated by the host CPU.
Recursion
The concept that a function or macro, having been defined, can call itself.
Great care should be taken when writing recursive macros; it is easy to get
caught in an infinite loop where there will be no exit from the recursion.
Relocatable Section
A section whose address is not fixed (absolute). The linker assigns addresses
to relocatable sections through a process called relocation.
Relocation
A process performed by the linker in which absolute addresses are assigned
to relocatable sections and all identifier symbol definitions within the
relocatable sections are updated to their new addresses.
ROM
Read Only Memory (Program Memory).
Run
The command that releases the emulator from halt, allowing it to run the
application code and change or respond to I/O in real time.
Section
An portion of code or data which has a name, size, and address.
SFR
Special Function Registers of a PICmicro microcontroller.
Shared Section
A section which resides in a shared (non-banked) region of data RAM.
DS51025E-page 252
 2001 Microchip Technology Inc.
Shell
The MPASM assembler shell is a prompted input interface to the macro
assembler. There are two MPASM assembler shells: one for the DOS version
and one for the Windows version.
Simulator
A software program that models the operation of the PICmicro
microprocessor.
Single Step
This command steps though code, one instruction at a time. After each
instruction, MPLAB IDE updates register windows, watch variables, and
status displays so you can analyze and debug instruction execution.
You can also single step C compiler source code, but instead of executing
single instructions, MPLAB IDE will execute all assembly level instructions
generated by the line of the high level C statement.
Skew
The information associated with the execution of an instruction appears on
the processor bus at different times. For example, the executed opcode
appears on the bus as a fetch during the execution of the previous instruction,
the source data address and value and the destination data address appear
when the opcode is actually executed, and the destination data value appears
when the next instruction is executed. The trace buffer captures the
information that is on the bus at one instance. Therefore, one trace buffer
entry will contain execution information for three instructions. The number of
captured cycles from one piece of information to another for a single
instruction execution is referred to as the skew.
Skid
When a hardware break point is used to halt the processor, one or more
additional instructions may be executed before the processor halts. The
number of extra instructions executed after the intended break point is
referred to as the skid.
Source Code – Assembly
Source code consists of PICmicro MCU instructions and MPASM assembler
directives and macros that will be translated into machine code by an
assembler.
Source Code – C
A program written in the high level language called “C” which will be
converted into PICmicro MCU machine code by a compiler. Machine code is
suitable for use by a PICmicro MCU or Microchip development system
product like MPLAB IDE.
 2001 Microchip Technology Inc.
DS51025E-page 253
MPLAB® IDE User’s Guide
Source File – Assembly
The ASCII text file of PICmicro MCU instructions and MPASM assembler
directives and macros (source code) that will be translated into machine code
by an assembler. It is an ASCII file that can be created using any ASCII text
editor.
Source File – C
The ASCII text file containing C source code that will be translated into
machine code by a compiler. It is an ASCII file that can be created using any
ASCII text editor.
Special Function Registers
Registers that control I/O processor functions, I/O status, timers, or other
modes or peripherals.
Stack – Hardware
An area in PICmicro MCU memory where function arguments, return values,
local variables, and return addresses are stored; i.e., a “Push-Down” list of
calling routines. Each time a PICmicro MCU executes a CALL or responds to
an interrupt, the software pushes the return address to the stack. A return
command pops the address from the stack and puts it in the program counter.
The PIC18CXXX family also has a hardware stack to store register values for
“fast” interrupts.
Stack – Software
The compiler uses a software stack for storing local variables and for passing
arguments to and returning values from functions.
Static RAM or SRAM
Static Random Access Memory. Program memory you can Read/Write on the
target board that does not need refreshing frequently.
Status Bar
The Status Bar is located on the bottom of the MPLAB IDE window and
indicates such current information as cursor position, development mode and
device, and active toolbar.
Step Into
This command is the same as Single Step. Step Into (as opposed to Step
Over) follows a CALL instruction into a subroutine.
Step Over
Step Over allows you to debug code without stepping into subroutines. When
stepping over a CALL instruction, the next break point will be set at the
instruction after the CALL. If for some reason the subroutine gets into an
endless loop or does not return properly, the next break point will never be
reached.
The Step Over command is the same as Single Step except for its handling of
CALL instructions.
DS51025E-page 254
 2001 Microchip Technology Inc.
Stimulus
Data generated to exercise the response of simulation to external signals.
Often the data is put into the form of a list of actions in a text file. Stimulus may
be asynchronous, synchronous (pin), clocked and register.
Stopwatch
A counter for measuring execution cycles.
Symbol
A symbol is a general purpose mechanism for describing the various pieces
which comprise a program. These pieces include function names, variable
names, section names, file names, struct/enum/union tag names, etc.
Symbols in MPLAB IDE refer mainly to variable names, function names and
assembly labels.
System Button
The system button is another name for the system window control. Clicking
on the system button pops up the system menu.
System Window Control
The system window control is located in the upper left corner of windows and
some dialogs. Clicking on this control usually pops up a menu that has the
items “Minimize,” “Maximize,” and “Close.” In some MPLAB IDE windows,
additional modes or functions can be found.
system window control
Figure G1: System Window Control Menu – Watch Window
Target
Refers to user hardware.
Target Application
Firmware residing on the target board.
Target Board
The circuitry and programmable device that makes up the target application.
 2001 Microchip Technology Inc.
DS51025E-page 255
MPLAB® IDE User’s Guide
Target Processor
The microcontroller device on the target application board that is being
emulated.
Template
Lines of text that you build for inserting into your files at a later time. The
MPLAB Editor stores templates in template files.
Toolbar
A row or column of icons that you can click on to execute MPLAB IDE
functions.
Trace
An emulator or simulator function that logs program execution. The emulator
logs program execution into its trace buffer which is uploaded to MPLAB IDE’s
trace window.
Trace Memory
Trace memory contained within the emulator. Trace memory is sometimes
called the trace buffer.
Trigger Output
Trigger output refers to an emulator output signal that can be generated at
any address or address range, and is independent of the trace and break
point settings. Any number of trigger output points can be set.
Unassigned Section
A section which has not been assigned to a specific target memory block in
the linker command file. The linker must find a target memory block in which
to allocate an unassigned section.
Uninitialized Data
Data which is defined without an initial value. In C, int myVar; defines a
variable which will reside in an uninitialized data section.
Upload
The Upload function transfers data from a tool, such as an emulator or
programmer, to the host PC or from the target board to the emulator.
Warning
An alert that is provided to warn you of a situation that would cause physical
damage to a device, software file, or equipment.
WatchDog Timer (WDT)
A timer on a PICmicro microcontroller that resets the processor after a
selectable length of time. The WDT is enabled or disabled and set up using
configuration bits.
Watch Variable
A variable that you may monitor during a debugging session in a watch
window.
DS51025E-page 256
 2001 Microchip Technology Inc.
Watch Window
Watch windows contain a list of watch variables that are updated at each
break point.
 2001 Microchip Technology Inc.
DS51025E-page 257
MPLAB® IDE User’s Guide
NOTES:
DS51025E-page 258
 2001 Microchip Technology Inc.
12
MPLAB® IDE USER’S GUIDE
Index
Symbols
.asm ................................................................ 37
.c ..................................................................... 37
.cod ................................................................. 37
.hex ................................................................. 37
.lib ................................................................... 37
.lkr ................................................................... 37
.lst ................................................................... 37
.map ............................................................... 37
.o .................................................................... 37
Numerics
12-Bit Core Devices ....................................... 86
I/O Pins .................................................... 86
Peripherals ............................................... 87
Reset and Sleep Conditions .................... 86
Watchdog Timer ....................................... 87
14-Bit Core Devices ....................................... 88
I/O Pins .................................................... 88
Interrupts .................................................. 89
Peripherals ............................................... 91
Reset Conditions ...................................... 89
Sleep ........................................................ 89
Special Registers ..................................... 90
Watchdog Timer ....................................... 90
16-Bit Core Devices ....................................... 93
I/O Pins .................................................... 93
Interrupts .................................................. 93
Memory Modes ........................................ 96
Peripherals ............................................... 95
Reset Conditions ...................................... 94
Sleep ........................................................ 94
Special Registers ..................................... 94
Watchdog Timer ....................................... 94
A
Absolute Listing Window .............................. 194
Absolute Section .......................................... 241
Access RAM ................................................. 241
Add Watch Window Symbols ....................... 208
Adding Toolbar Buttons ................................ 171
Address Labels ............................................. 173
Arrange Icons ............................................... 214
ASCII Display ....................................... 192, 201
Assembler .................................................... 241
 2001 Microchip Technology Inc.
Assigned Section .......................................... 242
B
Break and Trace Points .................................. 69
Break Options ............................................... 163
Break Point Settings ..................................... 134
Break Point, Hardware .................................. 242
Break Point, Software ................................... 242
Break Points ................................................... 69
Real-Time ................................................. 70
Break Settings ...................................... 133, 134
Break on Address Match .......................... 71
Break on Stack Overflow .......................... 72
Break on Trace Buffer Full ............... 71, 164
Break on Watchdog Timer ....................... 72
Clear Breakpoints on Download ............. 163
Global Break Enable .............................. 163
Pass Counter ........................................... 72
Saving Breakpoint Settings ............ 135, 139
Stack Overflow Break Enable ................ 164
C
Calibration Data Window .............................. 192
Calibration Memory ............................... 113, 242
Calibration Memory Window ......................... 192
Cascade ........................................................ 214
CD-ROM
Microchip Technology Library .................... 4
Center Debug Location ................................. 134
Change Program Counter ............................. 130
Change Watch Window Symbol Properties .. 210
Clear All Points ............................................. 144
Clear Memory on Download ......................... 173
Clear Program Memory ................................ 146
Clock Frequency ........................................... 157
Code
Start Up .................................................... 37
Code File ........................................................ 37
Colors ........................................................... 183
Command Line Interface .............................. 242
Communications Port Setup ......................... 184
Compiler ....................................................... 242
Conditional Break ................................... 75, 131
Configuration ................................................ 159
Configuration Bits ................................. 113, 243
DS51025E-page 259
MPLAB® IDE User’s Guide
Creating a Watch Window ............................ 207
Customer Notification Service .......................... 6
D
Data Memory ................................................ 243
Debug ........................................................... 129
Break PointSettings ................................ 134
Center Debug Location .......................... 134
Clear All Points ....................................... 144
Execute .................................................. 131
Conditional Break ............................ 131
Execute an Opcode ......................... 131
Power-On Reset ..................................... 147
Run ......................................................... 129
Change Program Counter ................ 130
Halt Trace ........................................ 129
Reset ............................................... 129
Run .................................................. 129
Step ................................................. 130
Step Over ......................................... 130
System Reset ......................................... 146
Default Configuration .................................... 166
Default Editor Modes .................................... 169
Default File Browse Directory ....................... 177
Development Mode Options ......................... 152
Break Options ......................................... 163
Clock Frequency .................................... 157
Configuration .......................................... 159
Device Ports ........................................... 154
Memory .................................................. 158
Pin Settings ............................................ 162
Processor Power .................................... 161
Tools ....................................................... 152
Device Ports ................................................. 154
Directives ...................................................... 243
Control .................................................... 243
Data ........................................................ 243
Listing ..................................................... 247
Macro ..................................................... 247
Object File .............................................. 250
Disabling Toolbar Buttons ............................. 172
Disassembled Code ...................................... 114
DOS
Command to Window ............................. 185
Repeat Command to Window ................ 186
E
Edit ................................................................ 101
Edit Watch Window Symbols ........................ 209
Editing Toolbar Buttons ................................ 171
DS51025E-page 260
Editor Modes .................................................178
Display/Input Modes ...............................179
File Modes ..............................................180
Printing ...................................................180
Screen Formatting ..................................179
EEPROM .......................................................243
EEPROM Memory .................................113, 192
Emulator ........................................................243
Enhanced 16-Bit Core Devices .......................97
I/O Pins .....................................................97
Interrupts ..................................................98
Peripherals ...............................................99
Reset Conditions ......................................98
Sleep ........................................................98
Special Registers ......................................99
Watchdog Timer .......................................99
Environment Setup ........................................169
Colors .....................................................183
Editor Modes ..........................................178
Display/Input Modes .........................179
File Modes ........................................180
Printing .............................................180
Screen Formatting ............................179
File Options ............................................177
Default File Browse Directory ...........177
Size of MRU File List ........................178
General Options .....................................169
Clear Memory on Download .............173
Load Default Configuration ..............173
Status Bar Enable ............................173
Track Source Code ..........................173
Global Switches ......................................173
Key Mappings .........................................181
Project Template Options .......................174
Screen Font ............................................170
Symbol Display Width .............................173
Toolbar Setup .........................................170
Executable
Files ..........................................................37
Executable Code ...........................................244
Execute
Conditional Break ...................................131
Execute an Opcode ................................131
Execution
Non Real-Time .........................................67
Exit ................................................................116
Export ............................................................244
Export Memory .......................................113
Export Trace Buffer ................................111
 2001 Microchip Technology Inc.
Index
Expressions .................................................. 244
Extended Microcontroller Mode .................... 244
External RAM ............................................... 244
HEX Code ..................................................... 245
HEX Display ................................................. 192
HEX File ......................................................... 37
F
File
I
ICD ............................................................... 245
ICE ................................................................ 246
ICEPIC .......................................................... 153
Iconize All ..................................................... 214
IDE ............................................................ 9, 246
IDs ................................................................ 113
Import ................................................... 108, 246
Import to Memory ................................... 108
Import to Target Memory ........................ 110
Import to Memory ......................................... 108
Import to Target Memory .............................. 110
Index ............................................................. 259
Initialization
Data .......................................................... 37
Initialized Data .............................................. 246
Internet Address ............................................... 5
Interrupts
Handler Code ........................................... 37
Exit ......................................................... 116
Export
Export Trace Buffer ......................... 111
Import
Import to Memory ............................ 108
Import to Target Memory ................. 110
Listing .................................................... 247
Print ....................................................... 114
File Extensions Used by MPLAB .................. 239
File Options .................................................. 177
Default File Browse Directory ................ 177
Size of MRU File List ............................. 178
File Register Window ................................... 199
File Registers
ASCII Display ......................................... 201
HEX Display ........................................... 201
Symbolic Display ................................... 201
G
Global Break Enable .................................... 163
Global Switches ............................................ 173
Break on Trace Buffer Full ..................... 164
Clear Breakpoints on Download ............ 163
Global Break Enable .............................. 163
Stack Overflow Break Enable ................ 164
Glossary ....................................................... 241
Grouping Toolbar Buttons ............................ 172
H
Hardware
Stack Levels .......................................... 196
Help .............................................................. 216
About ..................................................... 217
Editor Help ............................................. 216
Error Help .............................................. 216
MPASM Help ......................................... 216
MPLAB Help .......................................... 216
MPLIB Help ............................................ 216
MPLINK Help ......................................... 216
Release Notes ....................................... 216
Tool Help ............................................... 216
Tool Release Notes ............................... 216
 2001 Microchip Technology Inc.
K
Key Mapping Functions ................................ 225
Key Mappings ............................................... 181
Keyboard Shortcut ........................................ 102
L
Librarian ........................................................ 246
Library ........................................................... 246
Files .......................................................... 37
Linker ............................................................ 246
Script ........................................................ 37
Linker Script Files ......................................... 246
Listing File .............................................. 37, 247
Load Default Configuration ........................... 173
Load Setup ................................................... 166
Load Watch Window ..................................... 207
Local Label ................................................... 247
Logic Probes ................................................. 247
M
Map File .......................................................... 37
MCU ............................................................. 247
DS51025E-page 261
MPLAB® IDE User’s Guide
Memory ................................................... 96, 158
Calibration .............................................. 242
Data ........................................................ 243
Export ..................................................... 113
Program .................................................. 251
Trace ...................................................... 256
Memory Models ............................................ 247
Menu Shortcut .............................................. 102
Microchip Internet Web Site .............................. 5
Microcontroller Mode .................................... 248
Microprocessor Mode ................................... 248
Mnemonics ................................................... 248
Modify
Address .................................................. 212
Auto Increment ....................................... 213
Data/Opcode .......................................... 212
End All .................................................... 213
Fill Range ............................................... 213
Memory Area .......................................... 213
Radix ...................................................... 212
Read ....................................................... 213
Read Range ........................................... 213
Modify Window ............................................. 212
Most-Recently-Used File List ................ 116, 178
MPASM Assembler.......................... 11, 241, 248
MPASM Assembler Help .............................. 216
MPLAB
IDE ............................................................. 9
MPLAB Editor ................................................. 11
MPLAB File Extensions ................................ 239
MPLAB IDE ................................................... 248
MPLAB Project Manager ................................ 11
MPLAB/PICMASTER Help ........................... 216
MPLAB CXX ................................................. 248
MPLAB CXX C Compiler ................................ 11
MPLAB ICD .................................................. 248
MPLAB ICE ........................................... 153, 248
Verify ...................................................... 186
MPLAB ICE Emulator ..................................... 11
MPLAB SIM Simulator ........................... 153, 249
MPLAB SIM Simulator .................................... 11
MPLIB Librarian ......................... 11, 37, 246, 249
MPLINK Linker........................... 11, 37, 246, 249
MPLINK Linker Help ..................................... 216
MRU .............................................................. 116
Multiple Cycles ................................................ 76
DS51025E-page 262
N
New Project .....................................................67
O
Object Code ..................................................249
Object Files, Precompiled ...............................37
Off-Chip Memory ...........................................250
Opcodes ........................................................250
Open Windows ..............................................215
Operators ......................................................250
Options ..........................................................150
Development Mode ................................152
Development Mode Options ...........152, 163
Break Options ..................................163
Clock Frequency ..............................157
Configuration ....................................159
Device Ports .....................................154
Memory ............................................158
Pin Settings ......................................162
Processor Power ..............................161
Tools ................................................152
Environment Setup .................................169
Colors ...............................................183
Editor Modes ....................................178
File Options ......................................177
Global Switches ...............................173
Key Mappings ..................................181
Project Template Options .................174
Screen Font ......................................170
Symbol Display Width ......................173
Toolbar Setup ...................................170
Programmer Options ..............................184
Communications Port Setup ............184
Select Programmer ..........................184
Window Setup ........................................165
Default Configuration .......................166
Load Setup .......................................166
Save Setup .......................................165
P
Pass Counter ..........................................72, 250
Assigned to Break ....................................74
Assigned to Trace .....................................75
Points ........................................................73
Set Up .......................................................73
Using to Count Events ..............................75
PICMASTER Emulator...........................153, 250
Verify ......................................................186
PICmicro MCU .......................................253, 254
PICSTART Plus Programmer ........................251
 2001 Microchip Technology Inc.
Index
Pin Settings .................................................. 162
Power-On-Reset ........................................... 147
Precedence .................................................. 251
Print .............................................................. 114
Print Options ................................................. 114
PRO MATE Programmer............................... 251
Processor Power .......................................... 161
Program Counter .......................................... 251
Program Memory .......................................... 251
Creating Temporary Breakpoint ............. 190
Load ....................................................... 108
Save ....................................................... 113
Window .................................................. 188
Programmer ................................................. 251
Programmer Options .................................... 184
Communications Port Setup .................. 184
Select Programmer ................................ 184
Project .......................................................... 251
Project Template Options ............................. 174
Project Window ............................................ 206
Q
Qualifier ........................................................ 251
R
Radix ............................................................ 252
Real-Time ..................................................... 252
Register Definitions ........................................ 37
Register Variables ........................................ 173
Release Notes .............................................. 216
Relocatable Section ..................................... 252
Removing Toolbar Buttons ........................... 172
Repeat DOS Command to Window .............. 186
Reset ............................................................ 129
Conditions .............................. 86, 89, 94, 98
Run ............................................................... 129
S
Save Setup ................................................... 165
Save Watch Window .................................... 211
Screen Font .................................................. 170
Section ......................................................... 252
Absolute ................................................. 241
Assigned ................................................ 242
Relocatable ............................................ 252
Shared ................................................... 252
Unassigned ............................................ 256
Select Programmer ...................................... 184
Shared Section ............................................. 252
Shortcut ........................................................ 102
 2001 Microchip Technology Inc.
Show Symbol List Window ........................... 204
Simulator ...................................................... 253
Single Cycle .................................................... 76
Single Step ................................................... 253
Skew ............................................................. 253
Skid ............................................................... 253
Sleep ............................................ 86, 89, 94, 98
Source Code ................................................... 37
Source Code, Assembly ............................... 253
Source Code, C ............................................ 253
Special Function Registers Window ............. 202
Stack
12-Bit Core Devices ............................... 197
14-Bit Core Devices ............................... 197
16-Bit Core Devices ............................... 198
Enhanced 16-Bit Core Devices .............. 198
Levels ..................................................... 196
Overflow ................................................... 72
Window .................................................. 196
Stack Overflow Break Enable ....................... 164
Stack, Hardware ........................................... 254
Stack, Software ............................................ 254
Start Up Code ................................................. 37
Status Bar ..................................................... 103
Current Development Mode ................... 223
Current Processor .................................. 222
File Modified ........................................... 222
Insert/Strikeover ..................................... 222
Line No. .................................................. 222
Lines in File ............................................ 222
MPLAB Version ...................................... 222
Write/Read Only ..................................... 222
Status Bar Enable ......................................... 173
Step Over ..................................................... 130
Stimulus ................................................ 134, 255
Stopwatch ..................................................... 255
Target Frequency ................................... 205
Window .................................................. 205
Symbol .......................................................... 255
Symbol Display Width ................................... 173
Address Labels ...................................... 173
Register Variables .................................. 173
Symbolic Display .......................................... 201
System Button .............................................. 255
System Reset ............................................... 146
System Window Control ............................... 255
DS51025E-page 263
MPLAB® IDE User’s Guide
T
Target ........................................................... 255
Tile Horizontal ............................................... 213
Tile Vertical ................................................... 214
Tool Release Notes ...................................... 216
Toolbar .......................................................... 103
Debug ..................................................... 220
Edit ......................................................... 219
Project .................................................... 220
User Defined .......................................... 221
Toolbar Setup ............................... 170, 171, 172
Tools ..................................................... 152, 185
DOS Command to Window .................... 185
Repeat DOS Command to Window ........ 186
Verify MPLAB ICE .................................. 186
Verify PICMASTER Emulator ................. 186
Trace ............................................................. 256
Circular Trace Buffer ................................ 72
Halting from the Toolbar ........................... 73
Trace Buffer Full ............................................. 71
Trace Data ...................................................... 76
Trace Memory ......................................... 73, 256
Window ................................................... 191
Trace Points .................................................... 69
Real-Time ................................................. 72
Trace Settings ............................................... 138
Track Source Code ....................................... 173
U
Unassigned Section ...................................... 256
Uninitialized Data .......................................... 256
Calibration Data ......................................192
Calibration Memory ................................192
Cascade .................................................214
EEPROM Memory ..................................192
File Registers ..........................................199
Iconize All ...............................................214
Modify .....................................................212
Open Windows .......................................215
Program Memory ............................146, 188
Project ....................................................206
Show Symbol List ...................................204
Special Function Registers .....................202
Stack .......................................................196
Stopwatch ...............................................205
Tile Horizontal .........................................213
Tile Vertical .............................................214
Trace Memory ................................142, 191
Watch Window ........................................207
Add Symbols ....................................208
Edit ...................................................209
Load Watch Window ........................207
Save Watch Window ........................211
Symbol Properties ............................210
Window Setup ...............................................165
Default Configuration ..............................166
Load Setup .............................................166
Save Setup .............................................165
WWW Address ..................................................5
V
Verify MPLAB ICE ........................................ 186
Verify PICMASTER Emulator ........................ 186
W
Watchdog Timer ......................... 87, 90, 99, 256
Watch Window .............................................. 257
Add Symbols .......................................... 208
Creating .................................................. 207
Edit Symbols .......................................... 209
Load Watch Window .............................. 207
Save Watch Window .............................. 211
Symbol Properties .................................. 210
Watchdog Timer ............................... 72, 94, 159
WDT .............................................................. 256
Window ......................................................... 187
Absolute Listing ...................................... 194
Arrange Icons ......................................... 214
DS51025E-page 264
 2001 Microchip Technology Inc.
Index
NOTES:
 2001 Microchip Technology Inc.
DS51025E-page 265
MPLAB® IDE User’s Guide
NOTES:
DS51025E-page 266
 2001 Microchip Technology Inc.
Index
NOTES:
 2001 Microchip Technology Inc.
DS51025E-page 267
MPLAB® IDE User’s Guide
NOTES:
DS51025E-page 268
 2001 Microchip Technology Inc.
Index
NOTES:
 2001 Microchip Technology Inc.
DS51025E-page 269
MPLAB® IDE User’s Guide
NOTES:
DS51025E-page 270
 2001 Microchip Technology Inc.
Index
NOTES:
 2001 Microchip Technology Inc.
DS51025E-page 271
M
WORLDWIDE SALES AND SERVICE
AMERICAS
ASIA/PACIFIC
Japan
Corporate Office
Australia
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200 Fax: 480-792-7277
Technical Support: 480-792-7627
Web Address: http://www.microchip.com
Microchip Technology Australia Pty Ltd
Suite 22, 41 Rawson Street
Epping 2121, NSW
Australia
Tel: 61-2-9868-6733 Fax: 61-2-9868-6755
Microchip Technology Japan K.K.
Benex S-1 6F
3-18-20, Shinyokohama
Kohoku-Ku, Yokohama-shi
Kanagawa, 222-0033, Japan
Tel: 81-45-471- 6166 Fax: 81-45-471-6122
Rocky Mountain
China - Beijing
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7966 Fax: 480-792-4338
Atlanta
500 Sugar Mill Road, Suite 200B
Atlanta, GA 30350
Tel: 770-640-0034 Fax: 770-640-0307
Boston
2 Lan Drive, Suite 120
Westford, MA 01886
Tel: 978-692-3848 Fax: 978-692-3821
Chicago
333 Pierce Road, Suite 180
Itasca, IL 60143
Tel: 630-285-0071 Fax: 630-285-0075
Dallas
4570 Westgrove Drive, Suite 160
Addison, TX 75001
Tel: 972-818-7423 Fax: 972-818-2924
Detroit
Tri-Atria Office Building
32255 Northwestern Highway, Suite 190
Farmington Hills, MI 48334
Tel: 248-538-2250 Fax: 248-538-2260
Kokomo
2767 S. Albright Road
Kokomo, Indiana 46902
Tel: 765-864-8360 Fax: 765-864-8387
Los Angeles
18201 Von Karman, Suite 1090
Irvine, CA 92612
Tel: 949-263-1888 Fax: 949-263-1338
San Jose
Microchip Technology Inc.
2107 North First Street, Suite 590
San Jose, CA 95131
Tel: 408-436-7950 Fax: 408-436-7955
Toronto
6285 Northam Drive, Suite 108
Mississauga, Ontario L4V 1X5, Canada
Tel: 905-673-0699 Fax: 905-673-6509
Microchip Technology Consulting (Shanghai)
Co., Ltd., Beijing Liaison Office
Unit 915
Bei Hai Wan Tai Bldg.
No. 6 Chaoyangmen Beidajie
Beijing, 100027, No. China
Tel: 86-10-85282100 Fax: 86-10-85282104
China - Chengdu
Microchip Technology Consulting (Shanghai)
Co., Ltd., Chengdu Liaison Office
Rm. 2401, 24th Floor,
Ming Xing Financial Tower
No. 88 TIDU Street
Chengdu 610016, China
Tel: 86-28-86766200 Fax: 86-28-86766599
China - Fuzhou
Microchip Technology Consulting (Shanghai)
Co., Ltd., Fuzhou Liaison Office
Unit 28F, World Trade Plaza
No. 71 Wusi Road
Fuzhou 350001, China
Tel: 86-591-7503506 Fax: 86-591-7503521
China - Shanghai
Microchip Technology Consulting (Shanghai)
Co., Ltd.
Room 701, Bldg. B
Far East International Plaza
No. 317 Xian Xia Road
Shanghai, 200051
Tel: 86-21-6275-5700 Fax: 86-21-6275-5060
China - Shenzhen
Microchip Technology Consulting (Shanghai)
Co., Ltd., Shenzhen Liaison Office
Rm. 1315, 13/F, Shenzhen Kerry Centre,
Renminnan Lu
Shenzhen 518001, China
Tel: 86-755-82350361 Fax: 86-755-82366086
China - Hong Kong SAR
Microchip Technology Hongkong Ltd.
Unit 901-6, Tower 2, Metroplaza
223 Hing Fong Road
Kwai Fong, N.T., Hong Kong
Tel: 852-2401-1200 Fax: 852-2401-3431
India
Microchip Technology Inc.
India Liaison Office
Divyasree Chambers
1 Floor, Wing A (A3/A4)
No. 11, O’Shaugnessey Road
Bangalore, 560 025, India
Tel: 91-80-2290061 Fax: 91-80-2290062
Korea
Microchip Technology Korea
168-1, Youngbo Bldg. 3 Floor
Samsung-Dong, Kangnam-Ku
Seoul, Korea 135-882
Tel: 82-2-554-7200 Fax: 82-2-558-5934
Singapore
Microchip Technology Singapore Pte Ltd.
200 Middle Road
#07-02 Prime Centre
Singapore, 188980
Tel: 65-6334-8870 Fax: 65-6334-8850
Taiwan
Microchip Technology (Barbados) Inc.,
Taiwan Branch
11F-3, No. 207
Tung Hua North Road
Taipei, 105, Taiwan
Tel: 886-2-2717-7175 Fax: 886-2-2545-0139
EUROPE
Austria
Microchip Technology Austria GmbH
Durisolstrasse 2
A-4600 Wels
Austria
Tel: 43-7242-2244-399
Fax: 43-7242-2244-393
Denmark
Microchip Technology Nordic ApS
Regus Business Centre
Lautrup hoj 1-3
Ballerup DK-2750 Denmark
Tel: 45 4420 9895 Fax: 45 4420 9910
France
Microchip Technology SARL
Parc d’Activite du Moulin de Massy
43 Rue du Saule Trapu
Batiment A - ler Etage
91300 Massy, France
Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79
Germany
Microchip Technology GmbH
Steinheilstrasse 10
D-85737 Ismaning, Germany
Tel: 49-89-627-144 0 Fax: 49-89-627-144-44
Italy
Microchip Technology SRL
Centro Direzionale Colleoni
Palazzo Taurus 1 V. Le Colleoni 1
20041 Agrate Brianza
Milan, Italy
Tel: 39-039-65791-1 Fax: 39-039-6899883
United Kingdom
Microchip Ltd.
505 Eskdale Road
Winnersh Triangle
Wokingham
Berkshire, England RG41 5TU
Tel: 44 118 921 5869 Fax: 44-118 921-5820
10/18/02
DS51025E-page 272
 2002 Microchip Technology Inc.
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