SW-DP interface for debugging?

[nullbert]

Hi,

Does ChibiOS have any functions for using the SW-DP for outputting debuging messages over SWD? I'm using openocd as well.

Having this would free up a USART we're currently using for debugging output.

Barring that, can anyone recommend a software UART implementation for STM32 that could be used for debugging output? I would only need TX, no receive needed.

Thanks!

[nullbert]

Hm, it might be as simple as some inline assembly. Here's a hint of how it might work:

https://electronics.stackexchange.com/q ... d-using-gd

[nullbert]

Any recommendations? Should the example code in the link simply do the job?

Thanks!

[Giovanni]

ChibiOS does not have such a functionality, I have not tried that code.

Giovanni