RE: what timer is used to wake up 52832 per broadcast interval

sean — Tue, 03 Sep 2019 08:28:18 GMT

I see. Thank you !

RE: what timer is used to wake up 52832 per broadcast interval

bjorn-spockeli — Tue, 03 Sep 2019 07:42:33 GMT

HI Sean,

the SoftDevice uses RTC0 to schedule advertisment and connection intervals. RTC0 is blocked from application access when the SD is enabled and the SD will not forward interrupts/events from peripherals that are exclusively used by the SoftDevice to the application. Instead the SD generates a SW interrupt to notify the application when this is appropriate. This is to avoid "waking up" the application when it strictly does not need to "wake up".

So if you plan on using the RTC0 IRQ in the application when the SD is enabled, then I do not think it will work.

Best regards

Bjørn