Guía del usuario del USBasp
AC-PG-USBASP USBASP AVR Programmer
User Guide
Version 2.0
18 January 2012
AC-PG-USBASP-UG
AC-PG-USBASP USBASP AVR Programmer
User Guide
Version 2.0
18 January 2012
TABLE OF CONTENTS
1. OVERVIEW ................................................................................................................ 1
1.1. Introduction .................................................................................................... 1
1.2. References .................................................................................................... 1
1.2.1. Referenced Web Pages .......................................................................... 1
1.2.2. Acronyms and Abbreviations .................................................................. 1
1.3. Supported Microcontrollers ............................................................................ 2
1.4. Warnings........................................................................................................ 3
2. LAYOUT .................................................................................................................... 4
2.1. USB Type A ................................................................................................... 4
2.2. ISP – 10 pin IDC ............................................................................................ 4
2.3. JP1 – Supply Target ...................................................................................... 5
2.4. JP2 – Self Program ........................................................................................ 5
2.5. JP3 – Slow SCK ............................................................................................ 5
2.6. LEDs .............................................................................................................. 5
3. CIRCUIT DIAGRAM ..................................................................................................... 6
4. USING THE PROGRAMMER .......................................................................................... 7
4.1. Connecting the programmer to your computer .............................................. 7
4.1.1. Windows 7 (32 and 64 Bit) ...................................................................... 7
4.1.2. Windows Vista (32 Bit) .......................................................................... 10
4.1.3. Windows XP (32 bit) ............................................................................. 13
4.1.4. Other operating systems ....................................................................... 16
4.2. Downloading firmware to your microcontroller ............................................. 17
4.2.1. Required Items...................................................................................... 17
4.2.2. Assumptions ......................................................................................... 17
4.2.3. Procedure ............................................................................................. 17
4.2.4. More information ................................................................................... 18
4.3. Upgrading your USBasp .............................................................................. 18
4.3.1. Required Items...................................................................................... 18
4.3.2. Assumptions ......................................................................................... 19
4.3.3. Procedure ............................................................................................. 19
5. COMMENT AND QUESTIONS ...................................................................................... 20
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AC-PG-USBASP USBASP AVR Programmer
User Guide
Version 2.0
18 January 2012
TABLE OF TABLES
Table 1. Referenced Documents ........................................................................................................... 1
Table 2. Acronyms and Abbreviations ................................................................................................... 2
Table 3. Supported Microcontrollers ...................................................................................................... 3
TABLE OF FIGURES
Figure 1. Device Layout ........................................................................................................................... 4
Figure 2. 10 Pin ISP pinout ..................................................................................................................... 4
Figure 3. LEDs ......................................................................................................................................... 5
Figure 4. Circuit Diagram ........................................................................................................................ 6
Figure 5. Driver Installation on Windows 7 – System Tray Message ..................................................... 8
Figure 6. Driver Installation on Windows 7 – Installing Device Driver Software ..................................... 8
Figure 7. Driver Installation on Windows 7 – No Driver found ................................................................ 8
Figure 8. Driver Installation on Windows 7 – Device Manager ............................................................... 9
Figure 9. Driver Installation on Windows 7 – Update Driver Software .................................................... 9
Figure 10. Driver Installation on Windows 7 – Browse for Driver Software .......................................... 10
Figure 11. Driver Installation on Windows 7 – Confirmation ................................................................. 10
Figure 12. Driver Installation on Vista 32 bit – Found new hardware ................................................... 11
Figure 13. Driver Installation on Vista 32 bit - Found New Hardware – USBasp ................................. 12
Figure 14. Driver Installation on Vista 32 bit – Windows couldn’t find driver software for your device. 12
Figure 15. Driver Installation on Vista 32 bit – Browse for driver software ........................................... 13
Figure 16. Installation on Vista 32 bit – Confirmation ........................................................................... 13
Figure 17. Installation on Windows XP – New Hardware Wizard ......................................................... 14
Figure 18. Installation on Windows XP – Insert CD or install from specific location............................. 15
Figure 19. Installation on Windows XP – Specify Location................................................................... 15
Figure 20. Installation on Windows XP – Driver installation ................................................................. 16
Figure 21. Installation on Windows XP – Installation Confirmation ....................................................... 16
Figure 22. AVRdude writing a flash image to the microcontroller ......................................................... 18
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AC-PG-USBASP USBASP AVR Programmer
User Guide
Version 2.0
18 January 2012
1.
Overview
1.1.
Introduction
USBasp is a USB in-circuit programmer for Atmel AVR controllers. It simply consists of an
ATMega8 and a few passive components. The programmer uses a firmware-only USB driver,
no special USB controller is needed.
Some of the key features include:
a.
Works under multiple platforms. Linux, Mac OS X and Windows are tested,
b.
Programming speed is up to 5kBytes/sec, and
c.
Slow SCK option to support targets with low clock speed (< 1.5MHz).
1.2.
References
1.2.1. Referenced Web Pages
The web pages referenced in this User Guide are listed in Table 1.
Name
Address
USBasp - USB programmer for Atmel AVR
controllers
http://www.fischl.de/usbasp/
AVRdude
http://savannah.nongnu.org/projects/avrdude/
AVRdude Documentation
http://www.nongnu.org/avrdude/usermanual/avrdude.html
V-USB
http://www.obdev.at/products/vusb/index.html
WinAVR
http://winavr.sourceforge.net/
CrossPack for AVR® Development
http://www.obdev.at/products/crosspack/index.html
Table 1. Referenced Documents
1.2.2. Acronyms and Abbreviations
The acronyms and abbreviations utilised in this User Guide are listed in Table 2.
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AC-PG-USBASP USBASP AVR Programmer
User Guide
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18 January 2012
Acronym and Abbreviation
Description
AVR
According to Atmel, AVR stands for nothing, it's just a name.
Others say it stands for Advanced Virtual RISC. However, the
inventors of the AVR series chips are named Alf Egil Bogen and
Vegard Wollan, so you be the judge.
IDC
Insulation Displacement Connector
ISP
In System Programmer
LED
Light Emitting Diode
RISC
Reduced Instruction Set Computing
SCK
Serial Clock
SIL
Single in Line
SPI
Serial Peripheral Interface
USB
Universal Serial Bus
Table 2. Acronyms and Abbreviations
1.3.
Supported Microcontrollers
Table 3 lists the microcontrollers that are supported by the USB AVR Programmer.
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Supported Microcontrollers
Mega Series
ATmega8
ATmega8A
ATmega48
ATmega48A
ATmega48P
ATmega48PA
ATmega88
ATmega88A
ATmega88P
ATmega88PA
ATmega168
ATmega168A
ATmega168P
ATmega168PA
ATmega328
ATmega328P
ATmega103
ATmega128
ATmega128P
ATmega1280
ATmega1281
ATmega16
ATmega16A
ATmega161
ATmega162
ATmega163
ATmega164
ATmega164A
ATmega164P
ATmega164PA
ATmega169
ATmega169A
ATmega169P
ATmega169PA
ATmega2560
ATmega2561
ATmega32
ATmega32A
ATmega324
ATmega324A
ATmega324P
ATmega324PA
ATmega329
ATmega329A
ATmega329P
ATmega329PA
ATmega3290
ATmega3290A
ATmega3290P
ATmega64
ATmega64A
ATmega640
ATmega644
ATmega644A
ATmega644P
ATmega644PA
ATmega649
ATmega649A
ATmega649P
ATmega6490
ATmega6490A
ATmega6490P
ATmega8515
ATmega8535
ATtiny12
ATtiny13
ATtiny13A
ATtiny15
ATtiny25
ATtiny26
ATtiny45
ATtiny85
ATtiny2313
ATtiny2313A
AT90S1200
AT90S2313
AT90S2333
AT90S2343
AT90S4414
AT90S4433
AT90S4434
AT90S8515
Tiny Series
Classic Series
AT90S8535
Can Series
AT90CAN128
PWN Series
AT90PWM2
AT90PWM3
Table 3. Supported Microcontrollers
1.4.
Warnings
Some of the components discussed in this document are very sensitive to
electrical static discharges. The reader should take precautions to ensure
that components are protected against these discharges.
Whilst the voltages typically seen in microcontroller circuits are low, the
reader should be aware of the risk of working with electrical circuits and
take necessary precautions.
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User Guide
Version 2.0
18 January 2012
2.
Layout
The layout of the USBASP programmer is shown in Figure 1.
Figure 1. Device Layout
2.1.
USB Type A
The USB end of the programmer connects directly into your computers USB port.
2.2.
ISP – 10 pin IDC
The 10 pin ISP connection provides an interface to the microcontroller. This interface uses a
10 pin IDC connector and the pinout is shown in Figure 2
(MOSI) 1
2 (VCC +5V)
(GROUND) 3
4 (TXD)
(RESET) 5
6 (RXD)
(SCK) 7
8 (GROUND)
(MISO) 9
10 (GROUND)
Figure 2. 10 Pin ISP pinout
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2.3.
JP1 – Supply Target
This jumper controls the voltage on the ISP VCC connector. It can be set to +3.3V, +5V or
disable this jumper if the target device has its own power source.
2.4.
JP2 – Self Program
This jumper is used to update the firmware of the USBasp programmer. In order to update
the firmware you will need 2 programmers. One to be programmed and the other to do the
programming.
2.5.
JP3 – Slow SCK
When this jumper is selected, the slow clock mode is enabled. If the target clock is lower
than 1.5 MHz, you need to set this jumper. Then SCK is scaled down from 375 kHz to about 8
kHz.
2.6.
LEDs
The USBASP programmer has 2 LEDs near the ISP connection. These have the following
functions:
a.
LED R – Programmer communicating with target device
b.
LED G – Power
Figure 3. LEDs
Whilst you might assume that LED R is red and LED G is green, they do vary depending on
the batch. The one I use for instance has 2 red LEDs.
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User Guide
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18 January 2012
3.
Circuit Diagram
Figure 4. Circuit Diagram
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AC-PG-USBASP USBASP AVR Programmer
User Guide
Version 2.0
18 January 2012
4.
Using the Programmer
4.1.
Connecting the programmer to your computer
Connecting the programmer to your computer comprises of 2 steps:
a.
Physically connecting the programmer to the USB port, and
b.
Installing drivers in order for it to work.
Whilst the USBasp programmer will work on a wide variety of operating systems, this
procedure will focus on Widows Vista 32 bit and Windows XPs
4.1.1. Windows 7 (32 and 64 Bit)
4.1.1.1.
Required items
Items required to run this procedure are:
a.
USBasp programmer
b.
Computer with USB port and Windows 7 installed
c.
USBasp drivers downloaded and unzipped from
(1)
http://www.protostack.com/download/USBasp-win-driver-x86-x64-ia64v1.2.5.zip or
(2)
http://www.protostack.com/download/USBasp-win-driver-x86-x64-ia64v1.2.5.rar .
Some people have problems with the zip file so rar file is available as well
4.1.1.2.
Assumptions
This procedure assumes that:
a.
The logged in user has sufficient privileges to install device drivers
4.1.1.3.
Procedure
To install the USBasp programmer:
a.
Insert the programmer into an available USB port
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AC-PG-USBASP USBASP AVR Programmer
User Guide
Version 2.0
18 January 2012
b.
A message will appear in the system tray, as shown below. Click on “Click here for
status” to see what is going on.
Figure 5. Driver Installation on Windows 7 – System Tray Message
c.
Windows will attempt to install a driver from Windows Update
Figure 6. Driver Installation on Windows 7 – Installing Device Driver Software
d.
and will fail
Figure 7. Driver Installation on Windows 7 – No Driver found
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18 January 2012
e.
At this point, go into device manager and find the entry for the USBASP programmer. It
should be displayed with a yellow alert icon next to it.
f.
Right click on the device and select “Update Driver Software”
Figure 8. Driver Installation on Windows 7 – Device Manager
g.
When prompted “How do you want to search for driver software”, select “Browse my
computer for driver software”
Figure 9. Driver Installation on Windows 7 – Update Driver Software
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h.
Select the folder where you unzipped the driver files then click “Next”
Figure 10. Driver Installation on Windows 7 – Browse for Driver Software
i.
When the installation is complete, a confirmation screen will be displayed. Click close
to close it.
Figure 11. Driver Installation on Windows 7 – Confirmation
j.
your programmer is now ready for use.
4.1.2. Windows Vista (32 Bit)
4.1.2.1.
Required items
Items required to run this procedure are:
a.
USBasp programmer
b.
Computer with USB port and Windows Vista 32 Bit installed
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AC-PG-USBASP USBASP AVR Programmer
User Guide
Version 2.0
18 January 2012
c.
USBasp drivers downloaded and unzipped from
(1)
http://www.protostack.com/download/USBasp-win-driver-x86-x64-ia64v1.2.5.zip or
(2)
http://www.protostack.com/download/USBasp-win-driver-x86-x64-ia64v1.2.5.rar .
Some people have problems with the zip file so rar file is available as well
4.1.2.2.
Assumptions
This procedure assumes that:
a.
The logged in user has sufficient privileges to install device drivers
4.1.2.3.
Procedure
To install the USBasp programmer:
a.
Insert the programmer into an available USB port
b.
When the “Found New Hardware” dialog opens, select “Locate and install driver
software (recommended)”
Figure 12. Driver Installation on Vista 32 bit – Found new hardware
c.
Wait while Windows Vista attempts to locate a driver
d.
When the “Found New Hardware – USBasp” dialog box is displayed, select “I don’t
have the disc. Show me other options”
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Figure 13. Driver Installation on Vista 32 bit - Found New Hardware – USBasp
e.
On the next screen select “Browse my computer for driver software (advanced)”
Figure 14. Driver Installation on Vista 32 bit – Windows couldn’t find driver software
for your device
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f.
Click Browse and select the folder where you unzipped the USBasp drivers, then click
Next
Figure 15. Driver Installation on Vista 32 bit – Browse for driver software
g.
When the installation is complete, a confirmation screen will be displayed. Click close
to close it.
Figure 16. Installation on Vista 32 bit – Confirmation
h.
Your programmer is now ready for use
4.1.3. Windows XP (32 bit)
4.1.3.1.
Required items
Items required to run this procedure are:
a.
USBasp programmer
b.
Computer with USB port and Windows XP 32 bit installed
c.
USBasp drivers downloaded and unzipped from
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18 January 2012
(1)
http://www.protostack.com/download/USBasp-win-driver-x86-x64-ia64v1.2.5.zip or
(2)
http://www.protostack.com/download/USBasp-win-driver-x86-x64-ia64v1.2.5.rar .
Some people have problems with the zip file so rar file is available as well
4.1.3.2.
Assumptions
This procedure assumes that:
a.
The logged in user has sufficient permissions to install device drivers
4.1.3.3.
Procedure
To install the USBasp programmer:
a.
Insert the programmer into an available USB port
b.
When the “New Hardware Wizard” dialog box is displayed, select “No, not this time”
then click Next
Figure 17. Installation on Windows XP – New Hardware Wizard
c.
On the next page select “Install from a list of specific location (Advanced)” then click
Next
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Figure 18. Installation on Windows XP – Insert CD or install from specific location
d.
On the Search and Installation options page
(1)
Ensure that “Include this location in the search” is checked,
(2)
Click Browse and select the folder where you unzipped the USBasp drivers, then
(3)
Click Next
Figure 19. Installation on Windows XP – Specify Location
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18 January 2012
e.
Wait for the driver to install
Figure 20. Installation on Windows XP – Driver installation
f.
When the installation is complete, a confirmation screen will be displayed. Click close
to close it.
Figure 21. Installation on Windows XP – Installation Confirmation
g.
Your programmer is now ready for use
4.1.4. Other operating systems
USBasp works under other operating systems such as Mac OS X and Linux, by drivers are not
provided by Protostack nor are installation instructions included in this user’s guide.
The USBasp programmer uses the V-USB library and driver source code can be downloaded
this page http://www.obdev.at/products/vusb and http://libusb-win32.sourceforge.net/ .
Mac users may also want to look at http://www.obdev.at/products/crosspack.
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18 January 2012
4.2.
Downloading firmware to your microcontroller
4.2.1. Required Items
Item required for this procedure include:
a.
USBasp programmer,
b.
Computer with USB port and AVRdude software installed,
c.
Precompiled firmware to be loaded,
d.
10 pin ISP cable, and
e.
AVR Microcontroller with ISP interface wired to it (e.g. an AVR microcontroller on a
Protostack 28 pin AVR board)
4.2.2. Assumptions
This procedure assumes that
a.
AVRdude is in the path, and
b.
USBasp drivers have already been installed.
4.2.3. Procedure
To download the firmware to your microcontroller:
a.
Insert the programmer into an available USB port
b.
Connect the programmer to the microcontroller via a 10 pin ISP cable
(see Required items d & e),
c.
Open a command prompt
d.
Enter the following command where
(1)
<FILE> is the filename of the precompiled binary file , and
(2)
<DEVICE> is the micro controller type you are programming (eg ATMEGA8).
The full list of device codes is listed at http://www.nongnu.org/avrdude/usermanual/avrdude_4.html#Option-Descriptions
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18 January 2012
avrdude -p <DEVICE> -P usb -c usbasp
-U flash:w:<FILE>
Figure 22. AVRdude writing a flash image to the microcontroller
4.2.4. More information
Please refer to the AVRdude documentation at http://www.nongnu.org/avrdude/usermanual/avrdude.html for more information.
4.3.
Upgrading your USBasp
4.3.1. Required Items
Item required for this procedure include:
a.
USBasp programmer being programmed (referred to as target programmer)
b.
USBasp programmer doing the programming (referred to as active programmer),
c.
Computer with USB port and AVRdude software installed,
d.
Precompiled firmware to be loaded (can be downloaded from
http://www.fischl.de/usbasp/), and
e.
10 pin ISP cable.
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AC-PG-USBASP USBASP AVR Programmer
User Guide
Version 2.0
18 January 2012
4.3.2. Assumptions
This procedure assumes that
a.
The precompiled firmware filename is main.hex,
b.
AVRdude is in the path, and
c.
USBasp drivers have already been installed.
4.3.3. Procedure
To download a new copy of the firmware to a USBasp progammer:
a.
Insert the active programmer into an available USB port
b.
Set the JP2 jumper on the target programmer
If there is no header on JP2, then solder one on
c.
Connect the 10 pin ISP cable from the active to the target programmer
d.
Open a command prompt
e.
Enter the following command
avrdude -p atmega8 -P usb -c usbasp
-U flash:w:main.hex
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AC-PG-USBASP USBASP AVR Programmer
User Guide
Version 2.0
18 January 2012
5.
Comment and Questions
If you have any questions or comments regarding this documentation or any of our
products, please contact us via
http://www.protostack.com/index.php?main_page=contact_us.
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