Automatic restart in DFU Bootloader mode

[ladyada]

When using the built in USB DFU bootloader, lets auto-reset into the bootloader mode from USB Serial using something like 1200-baud knocking

[stas2z]

Uh, that will be great, ive tried to implement smth like this with F401 (using maple "LEAF" sequence as a trigger), but stucked cuz it just reboots instead of running bootloader, seems like BL code checks for BOOT0 not pulling up and jumping to fw stored

[fpistm]

I have a first working version 😉