Any Current savings after enabling RTC clock.

[beemavishnu]

Hello,

 

I am using nRF52832, SDK_15.3.0, S132 SoftDevice and Segger for flashing the image.

 

After wakeup from System OFF (due to GPIO event), I want to validate / debounce the pin state for 2 seconds. For this I am planning to use RTC as it will use low frequency clock.

During this 2 seconds, device will be in ideal loop (while loop) without performing any task. If pin state is not same even after 2 seconds, device will go to System OFF mode.

 

But my query is, since device is in ideal state whether CPU/ARM core will still run on high frequency clock and there by not much current savings even after enabling RTC clock.

 

Thanks & Regards

Vishnu Beema

[Simonr]

I believe the HFINT will trigger after the 2 seconds, but not while waiting. But you should probably do the measurements to be sure.

Best regards,

Simon