Slightly less terrible serprog implementation for the Raspberry Pi Pico and possibly other RP2040 based boards. Based on pico-serprog by GitHub user "stacksmashing".
Pinout for the SPI lines:
| Pin | Function |
|---|---|
| GP5 | CS |
| GP4 | MISO |
| GP3 | MOSI |
| GP2 | SCK |
Substitute ttyACMx with the actual tty device corresponding to the firmware.
Read chip:
flashrom -p serprog:dev=/dev/ttyACMx -r flash.bin
Write chip:
flashrom -p serprog:dev=/dev/ttyACMx -w flash.bin
As a lot of the code itself was heavily inspired/influenced by stm32-vserprog
this code is licensed under GPLv3.