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 stderravrdude-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.
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