MicroPython Forum (Archive)

For the STM32 based boards, there's a module "stm", that allows direct access to processor registers.
Is there something like this also for the nrf port?
If not, where should I start to write one?

You can easily develop such support for any processor using uctypes module (http://docs.micropython.org/en/latest/l ... types.html). Here's updated docs with some examples: https://pycopy.readthedocs.io/en/latest ... types.html

You can also add support for machine_mem.

You'd need to add these 3 lines:
https://github.com/micropython/micropyt ... #L485-L487
to this file:
https://github.com/micropython/micropyt ... ine.c#L190

and then you'd have the mem8, mem16, and mem32 accessors available. You'll still need to define constants for all of the registers you want to access, but that would be needed whether you use this approach or the uctypes approach that @pfalcon mentioned.

Would you like to add that officially?

Regarding the OP, machine.mem32[...] works great and is definitely the way to go: viewtopic.php?f=12&t=5377