avr toolchain installer 3.4.0.1146 readme

avr toolchain installer 3.4.0.1146 readme
AVR Toolchain Installer: Release 3.4.0.1146
Atmel AVR Toolchain provides software development tools for both the 8-bit and
32-bit AVR device families.
The toolchains provided in this package are based on GNU C Compiler. Atmel
AVR Toolchain inherits from two software distributions - AVR32 GNU toolchain and
WinAVR. AVR32 GCC Toolchain was ported by Atmel and maintained internally.
While AVR (8 bit) GCC Toolchain was ported and is maintained by the opensource
communities. Atmel contributes to the latter. It is to be noted that these are two
different toolchains.
8/32-bits Atmel
Microcontrollers
Release
3.4.0.1146
Installation Instructions
Atmel AVR Toolchain is a suite of executable, open source software development tools for the Atmel AVR 8/32-bit
series of Micro Controller Units (MCU). It includes the GNU GCC compiler for C and C++.
Installation
The package comes in two forms:
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As a standalone installer (for Windows and Linux)
As part of Atmel Studio 6 installer (for Windows)
Mainfest
1. AVR 8-bit GNU Toolchain
2. *Compiler (GCC), Binary utilities (such as assembler, linker, etc.) and Standard C library (avr-libc) for AVR 8 bit
devices.
1. AVR 32-bit GNU Toolchain
2. *Compiler (GCC) , Binary utilities (such as assembler, linker, etc.) and Standard C library (Newlib) for AVR 32
bit devices.
Layout
The directory structure of the installation is as follows:
`<install>` = The directory where you installed AVR Toolchain.
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<install>
• The folder where you have installed AVR Toolchain.
• Default folder when using the installer is 'C:\Program Files\Atmel\AVR Tools\AVR Toolchain'
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<install>\bin
• The folder where all executables are installed
<install>\source
• The folder where patches for different open source programs is located
<install>\doc
• The folder where Readme files and other documentations are installed
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For more specific details see Release Notes for AVR 8-bit GNU Toolchain and AVR 32-bit GNU Toolchain.
`PATH` Environment Variable
There is one folder in AVR Toolchain that contain executable programs. If `<install>` is your install folder then this
folder is:
<install>\bin
The `<install>\bin` folder contains the software development toolset proper. This includes GNU binutils, GCC, and
other programs and many miscellaneous Unix or GNU programs that are built for Windows. This includes sh (bash)
and make among a host of other things.
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For your operating system to easily locate these folders, they must be put at the beginning of the `PATH`
environment variable. The reason for putting these directories at the beginning of the `PATH` environment variable
is for the correct make program to be called.
AVR Toolchain installer modifies this registry key: `HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
\Session Manager\Environment\Path`
IMPORTANT: On Windows NT/2K/XP you must have Administrator privileges for the installer to automatically put
these directories in your `PATH` environment variable.
Registry Keys
AVR Toolchain installs a minimal amount of registry keys. These keys are installed to inform of the installation path,
the uninstaller, and for GCC to find other parts of the compiler as needed. Below are the specific keys that are
installed.
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Installation Location
• This registry key will be added to provide the location of the AVR Toolchain installation:
HKEY_LOCAL_MACHINE\SOFTWARE\Atmel\AVR Toolchain\{VERSION}
with {VERSION} being replaced by the version number of AVR Toolchain.
Formerly, the key above without {VERSION} was equal to the install location.
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GCC Component Paths
• There are some keys that are installed that are used to help GCC find installed component programs:
HKEY_LOCAL_MACHINE\Software\Free Software Foundation\AVR Toolchain\{VERSION}\GCC
HKEY_LOCAL_MACHINE\Software\Free Software Foundation\AVR Toolchain\{VERSION}\BINUTILS
HKEY_LOCAL_MACHINE\Software\Free Software Foundation\AVR Toolchain\{VERSION}\G++
with {VERSION} being replaced by the version number of AVR Toolchain. Each of these keys points to the
AVR Toolchain install location for that version of AVR Toolchain.
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PATH Environment Variable
• The registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment\Path
may be modified (if selected at installation time) to add two directories to the PATH environment variable.
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Uninstaller
• There are several registry keys written under:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\{Product GUID}
with Product-GUID beeing 2CE5E313-EC49-4527-A752-6DC89FE51C0D. These registry keys are used to
register the uninstaller with Windows.
Finding Help
Documentation
The first and best place to find help is in the documentation! AVR Toolchain includes the user manuals for many of
the software tools that are shipped in the package.
The documentation for any particular package may come in different formats depending upon what is available
from that package and available space in the AVR Toolchain installation. The different documentation formats that
you'll find in AVR Toolchain are:
1. HTML - Hyper Text Markup Language. Requires a web browser to view.
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2. PDF - Portable Document Format. Requires a PDF viewer such as Acrobat.
Additionally many user manuals can also be found online, especially packages that are part of the GNU project.
You can find links to many of these in the Links section below.
For packages that have HTML, and PDF documentation, look in your `<install>\doc` directory.
AVR Toolchain installs on your desktop two shortcuts. One is to the HTML documentation on avr-libc that is
installed locally. The other shortcut is to the GNU Manuals online (which requires Internet connection).
Online Sources
Please try and find the answer in the documentation first before asking for help online.
TIP: If you need to ask for help online, please read this first: How To Ask Questions The Smart Way (http://catb.org/
~esr/faqs/smart-questions.html)
Help for the AVR software development toolset (and specifically AVR GCC) can be found at:
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Atmel AVR Home (http://www.atmel.com/avr)
• Find info about different Atmel AVR products and application notes.
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AVR Freaks (http://www.avrfreaks.net)
• All AVR, all the time! This site has several forums including a general AVR Forum and an AVR GCC Forum
specifically for discussion of the GCC compiler for the AVR. They also have an Academy which contains
user's projects. This gives you access to a lot of sample code, libraries, and various AVR projects.
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avr-gcc mailing list (http://savannah.nongnu.org/mail/?group=avr)
• The avr-gcc list is intended as a forum for dicussion about the following: Bugs, Programming technique,
Installation and distributions, Hints and tips, Other avr-gcc related stuff. Note that all of the developers of the
toolset are subscribed to this list!
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Mikrocontroller.net (http://www.mikrocontroller.net/)
• For native German speakers. They have a forum for the AVR GCC compiler.
Help for other projects and tools included in AVR Toolchain can usually be found at the individual project's web
page which usually includes links to their mailing lists.
If you need help, do not contact the AVR Toolchain developers personally! Use these web sites and mailing lists
first!
Support and Bugs
You can fill out a relevant tracker on the http://support.atmel.no, if you have one of the following:
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a bug in the packaging
a bug in the installation
a bug in the software
any suggestions for a new tool to be added
any suggestions for improvements to the overall package
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New and Noteworthy
This chapter lists new and noteworthy items for the AVR Toolchain release.
AVR Toolchain
Replaces WinAVR and AVR32 GNU Toolchain
The AVR Toolchain replaces WinAVR and AVR32 GNU Toolchain packages.
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Contact Information
For support on AVR Toolchain please contact [email protected]
Users of AVR Toolchain are also welcome to discuss on the AVRFreaks website forum for AVR Software Tools.
Disclaimer and Credits
AVR Toolchain is distributed free of charge for the purpose of developing applications for Atmel AVR processors.
Use for other purposes are not permitted; see the software license agreement for details. AVR Toolchain comes
without any warranty.
Copyright 2006-2012 Atmel Corporation. All rights reserved. ATMEL, logo and combinations thereof, Everywhere
You Are, AVR, AVR32, and others, are the registered trademarks or trademarks of Atmel Corporation or its
subsidiaries. Windows, Internet Explorer and Windows Vista are either registered trademarks or trademarks
of Microsoft Corporation in the United States and/or other countries. Linux is the registered trademark of Linus
Torvalds in the United States and other countries. Built on Eclipse is a trademark of Eclipse Foundation, Inc. Sun
and Java are registered trademarks of Sun Microsystems, Inc. in the United States and other countries. Mozilla
and Firefox are registered trademarks of the Mozilla Foundation. Fedora is a trademark of Red Hat, Inc. SUSE is a
trademark of Novell, Inc. Other terms and product names may be the trademarks of others.
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