[riot-notifications] [RIOT-OS/RIOT] cpu/stm32f1: CPU hangs after wake-up from STOP power mode (#13918)

Juergen Fitschen notifications at github.com
Fri May 8 11:26:05 CEST 2020

Hmm, the two non-working cases restore the interrupts using: `msr     PRIMASK, r0`.
The working case uses `msr     PRIMASK, r2`.

I think I read something about `R0` being curruppted related to power saving modes?! But I cannot find the issue that mentioned that.

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