Arduino for STM32

Regarding the RCC, I also had thoughts on it, I may use something similar to libopencm3.
Thanks for opening an issue, I will work on it.

setPeriod fixed with https://github.com/stevstrong/Arduino_S ... 1956190387.

This commit most probably provides a fix for it.

The issue is solved, please check out the latest core files form my repo.

I recommend to use my fork of SdFat.

And get the latest core files from my repo, because I pushed today a commit to solve an issue which is also relevant for SPI and other peripherals.

I can reproduce the issue, please wait for a solution I will post on Github.

ag123 wrote: ↑Tue Dec 31, 2019 12:56 pm f401 can't do h/w sdio in 48pins, i think f411 has it even with the same set of pins

That's true!

After you upload your code and restart the device, the bootloader is no longer active.
So if you have not activated USB serial in your uploaded code, then the PC cannot recognize anything, is normal.

I just committed some changes to support Blackpill F401 in my repo . Blinky works, and anything else should also work, as I tried a lot of interfaces of F411 which was used as base for F401. Should anyone give it a try and find some problems, please open an issue in my repo. Remarks: - PB11 is missi...

For STM32 chips the Tx is the first and has the lower number.
So PA9 is Tx, the next (PA10) is Rx. This applies for other U(S)ART ports, too.