Add USB-serial capabilities

dirtyjtag / DirtyJTAG

JTAG probe firmware

MIT License

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Add USB-serial capabilities #29

Open jeanthom opened 6 years ago

jeanthom commented 6 years ago

STM32 dongles have 3 built-in serial IF, we could use them in addition to JTAG (bluepill targets mainly).

Inspiration : https://github.com/satoshinm/pill_serial

jeanthom commented 5 years ago

We can't both use the three USART and keep the current Bluepill pinout.

Should we use only two out of the three USART or break the existing pinout instead?

zoobab commented 4 years ago

@jeanthom sure break the pinout

jeanthom commented 4 years ago

I'm not sure about breaking compatibility, maybe having a BluePill ALT (breaking compatibility with the current BluePill pinout) could be a solution. Adding a new platform/pinout is fairly easy.

zoobab commented 4 years ago

Maybe reuse the usb-cdc code from BMP:

https://github.com/blacksphere/blackmagic/blob/master/src/platforms/common/cdcacm.c

zoobab commented 4 years ago

Actually the code of pill_serial is from BMP:

https://github.com/satoshinm/pill_serial/blob/master/src/cdcacm.c

zoobab commented 4 years ago

But since we are using unicoremx, the includes might be different...

jeanthom commented 4 years ago

I think I might start by porting the pill_serial code to ucmx than integrate it to DirtyJTAG. This way I'll better understand the code, and avoid writing unnecessary code.

KnorkFox commented 8 months ago

One serial port would be enough, on the blue pill board. Three available TTL ports add only confusion to the user, which port to use. The dirtyjtag-pico has only one serial port available.