RE: Wake up System on

thang47 — Mon, 25 Sep 2023 03:51:33 GMT

Hi,

Thank you for your question. I've revised my sleep section to:

__WFE();
__SEV();
__WFE();
__SEV();
__WFE();
__SEV();
__WFE();

The system no longer wakes up on its own

RE: Wake up System on

Vidar Berg — Thu, 21 Sep 2023 12:11:07 GMT

Hello,

The __WFE()/__WFI() instruction should not be called from the app, instead you should let your program run the idle thread when there is no work to do. For instance, by calling k_sleep() or by exiting your current thread.

In your case, the system is probably being woken up by the low power RTC timer used by the scheduler (the RTC is configured to trigger a timeout interruption after a few minutes).

Best regards,

Vidar