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Minimal tool-set for flashing bit-streams to AVR micro-controllers.

Project Description

# avr_helpers #

This package provides helper classes for interacting with the [AVR][1] tool-chain. It includes a copy of avrdude for Windows, and Linux _(32-bit and 64-bit)_, along with the avrdude.conf file from the [Arduino 1.0.5 IDE][2]. This allows stand-alone flashing of compile .hex firmware files.

[1]: http://en.wikipedia.org/wiki/Atmel_AVR [2]: http://arduino.cc/en/main/software

## avrdude API ##

The avr_helpers.AvrDude class implements an API for:

  • Scanning available serial ports for a connected device.
  • Flashing a .hex bit-stream file to an AVR device.

### AvrDude API Usage ###

>>> from avr_helpers import AvrDude
>>> AvrDude?
Type:            type
String form:     <class ‘avr_helpers.AvrDude’>
File:            ...
Init definition: AvrDude(self, protocol, microcontroller, baud_rate, conf_path=None, port=None)
Docstring:       ...
>>> avr_dude = AvrDude(‘arduino’, ‘atmega168’, ‘19200’)
>>> # `-D` disables erase cycle to speed up programming.
>>> stdout, stderr = avr_dude.flash(‘blink.hex’, [‘-D’])
>>> print stdout
>>> print stderr

avrdude-x64: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude-x64: Device signature = 0x1e9406 avrdude-x64: reading input file “blink.hex” avrdude-x64: writing flash (1056 bytes):

Writing | ################################################## | 100% 0.76s

avrdude-x64: 1056 bytes of flash written avrdude-x64: verifying flash memory against blink.hex: avrdude-x64: load data flash data from input file blink.hex: avrdude-x64: input file blink.hex contains 1056 bytes avrdude-x64: reading on-chip flash data:

Reading | ################################################## | 100% 0.68s

avrdude-x64: verifying … avrdude-x64: 1056 bytes of flash verified

avrdude-x64 done. Thank you.

Note that since the avrdude.conf file from the Arduino IDE is included in the avr_helpers package, the arduino protocol may be used, allowing easy flashing of pre-compiled .hex files to Arduino devices.

Release History

Release History

This version
History Node

0.2

History Node

0.1.post3.dev153609906

History Node

0.1.post2.dev7356594

History Node

0.1

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avr_helpers-0.2.tar.gz (943.1 kB) Copy SHA256 Checksum SHA256 Source Aug 27, 2014

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