Here’s a Python script for Windows that watches for the RP2040 bootloader to connect, then copies a firmware file from the build folder.
Combine this with a button.scr script that jumps to bootloader, and firmware can be updated by pressing the button. This has been a really nice improvement when I’m not developing with a debugger.
A Linux version using pyudev is easier.
Python script
Script shamelessly pulled from here, with only small modifications.
bootloadwatch.zip (2.1 KB)
def backup(drive: Drive):
if drive.label != 'RPI-RP2':
return
logger.info('RP2040 bootloader has been plugged in')
logger.info(f'Copying firmware to {drive.letter}')
shutil.copyfile(r'C:\buspirate5-firmware\build\bus_pirate5_rev10.uf2', drive.letter + '\\firmware.uf2')
Set the location of your build folder on line 135.
The script cannot be ctrl-c exited, so there’s that.
button.scr
# Jump to bootloader
$
Add the jump to bootloader command to a file called button.scr in the root folder of the Bus Pirate disk. Now pressing the button will activate the bootloader.