How do I find the wake source on a STM32H7A3? We have a product that under certain circumstances, will wake when it's not supposed to.

[mreed]

We track known (i.e. programmed) wake sources and report them at wake. The wake is not reporting any know source. The wake seems to be a loop, i.e. as soon as we enter sleep, the wake occurs.

 /* Set SLEEPDEEP bit of Cortex System Control Register */

 SET_BIT (SCB->SCR, SCB_SCR_SLEEPDEEP_Msk);

 /* Ensure that all instructions are done before entering STOP mode */

 __DSB ();

 __ISB ();

   /* Request Wait For Interrupt */

   __WFI ();

[Tesla DeLorean]

I think you have to repeat this, as WFI will drop thru if it causes interrupt service.

Mop up all pending interrupts