STM32L431xxx device support

[highjeans]

Would it be possible to support the STM32L431 series of microcontrollers? I have a small project that requires one and I would like to use microzig for it.

[mattnite]

We do have some level of support in the form of MMIO code generation. If you look here, we have a few variants of that microcontroller.

[highjeans]

I see, how would I get microzig to build for that chip then?

[mattnite]

You can follow the getting started example and replace the parts targeting rp2040 to your stm32:

https://microzig.tech/docs/getting-started/

To get the specific chip name check out the Chips.zig file under port/stmicro/stm32, sometimes code completion doesn't work.

And note that the blinky example uses rp2040 specific code, so you'll have to clear that out.

[highjeans]

What about the hal? Which board would I select? None of the boards there seem to use the chip I need to work with. I really do not want to work with raw registers.