AvrdudeRemoteFlashing

AvrdudeRemoveFlashing

A simple script to monitor .hex, .eep files and program it to the avr chip

FEATURES

• .hex and .eep flashing
• file system monitoring (Build directory) for instant flash to the chip
• works on RPI/Linux

NEEDED HARDWARE

• A avrdude compatible programmer like the cheap USBASP

USAGE

modify the following lines to setup the system in avrdude_flasher.py:

• 9 chip = "attiny2313" define here the default chip if it not in the filename. See avrdude docu -p flag
• programmer = "usbasp" define here your programming device. See avrdude docu for the -c flag
• path_to_watch = "./GccApplication3/GccApplication3/Debug" define the path to watch for .hex files

See at function flash for more configration flags.

SETUP

Any linux system with python2 and avrdude installed. I used a RPI Zero W with an USBASP connected.

I setup a smb share and setup the path_to_watch path to it, so if AtmelStudio generates a new build and the pythonscript flashes the new file to the chip on an other Computer.

After setup simply run avrdude_flasher.py

BUILD FILESNAMES

A feature is that the chip to programm can be determand in the filename, so you dont need to change the script. The filename for .hex and .eep need the following pattern: _<projectname>_<chipname>_.hex and _<projectname>_<chipname>_.eep So a valid build file for an Attiny2313 is:

• HEX:~/build/_ledblink_attiny2313_.hex
• EEP:~/build/_ledblink_attiny2313_.eep

AtmelStudioSetup

A AtmelStudioProject runs not very well on a FileShare i have noticed. So i added a PostBuildRule to copy the build files to the share via a windows copy command:

• hardcoded chip name: copy $(MSBuildProjectDirectory)Debug$(AssemblyName).hex C:UsersrootDropboxtestprojDebug_$(AssemblyName)_attiny2313_.hex

OR:

• with atmel studio macro: copy $(MSBuildProjectDirectory)Debug$(AssemblyName).hex C:UsersrootDropboxtestprojDebug_$(AssemblyName)_$(avrdevice)_.hex

RUNNING MONITOR ON SMB SHARE

If you want to watch *.hex files on smb shares you have to mount it on ubuntu into the filesystem. The normal Files-Application dont do that. So first you have to install cifs-utils

• sudo apt-get install cifs-utils Create a local mounting folder
• sudo mkdir /mnt/tmp_dev_share And mount the SMB Server to it (Here the smb share is on 192.168.1.23 and we want to mount the /home/tmp folder)
• sudo mount -t cifs //192.168.1.23/home/tmp /mnt/tmp_dev_share

The last step is to edit the path_to_watch Variable to /mnt/tmp_dev_share