tree 57760a5967edeaeb5ee8d7d04f332d6b8d62cd85
parent 53cf5f59dcf106371a05176997d29d5f64b0740c
author PulkoMandy <pulkomandy@pulkomandy.tk> 1685348097 +0200
committer PulkoMandy <pulkomandy@pulkomandy.tk> 1685349026 +0200

pcw2hid: Add bootloader

Forked from LUFA DFU bootloader.

Flash fuses: lfuse 0xEF, hfuse 0xD8 (enable BOOTRST) efuse 0xF7

This means the boot always goes to the bootloader first. The bootloader
wait for a while to see if there is any activity on the keyboard pins,
in that case, it jumps to the main app. Otherwise, the device enters DFU
mode and can be upgraded with a newer firmware using dfu-programmer or
Atmel FLIP.