Firmware needs to use three RTCs while nRF52810 has only two RTCs

RE: Firmware needs to use three RTCs while nRF52810 has only two RTCs

user6207 — Mon, 16 May 2022 12:48:09 GMT

You need to understand the app_timer to be able to use it in the firmware. This app_timer library is one of the heaviest used and well documented libraries. Most of our examples are using app_timer for low accuracy/ lower power timer functionality.

You said that you already need to use the app_timer in your firmware. You just create an additional timer with the callback timeout that you need to wake the CPU.

RE: Firmware needs to use three RTCs while nRF52810 has only two RTCs

user114723 — Mon, 16 May 2022 11:27:30 GMT

I don't completely understand the app_timer, so can you please tell me how to implement that? Thank you!

RE: Firmware needs to use three RTCs while nRF52810 has only two RTCs

user6207 — Mon, 16 May 2022 05:54:13 GMT

Why do you need an extra RTC to wakeup the CPU? You can use the same app_timer to configure this timer to wake the CPU. Any timer expiry will generate an interrupt that wakes the CPU from sleep states.