This board is commonly known as "Blue Pill" and there is a second PR adding support for it here: #7727

This board is commonly known as "Blue Pill" and there is a second PR adding support for it here: #7727

The "blue pill" uses the stm32f103cb, this one is known as the "black pill" I think.

sorry wasn't aware of these alternative names, though I saw the other PR I (hence) didn't made the connection. I'll check if and how they are related, as @bergzand pointed out there might be differing MCUs here?

mhm, seems like mine is actually the bluepill, too. And as far as my quick look up resolved, the stm32f103cb and stm32f103c8t6 have only minor diffs, so it should be possible to integrate both into one or use the greatest common denominator (regarding periphs).

I'll try #7727 with my board and report back if it is working, and will close my PR then - no need to duplicate a board under different names 😉

The board added with #7727 theoretically also has an stm32f103c8, however, we discovered that it has 128 KiB flash even though it claims to have only 64 KiB flash therefore we decided to use stm32f103cb as the CPU_MODEL. We are currently investigating this further, would be nice to know if that's also the case on your board.

Nonetheless your PR seems to add some things we didn't take care of for instance the gpio_params.h saul configuration, if you decide to close this one in favor of #7727 I would copy this file to our PR.

@gebart wasn't aware of that, thanks for the pointer. And obviously a good idea, I totally agree to better keep order of periphs according to board and select RIOTs usage separately.

closing in favour #7727