SDK15.3.0: Counting Rising Edges only for 1 ms using the GPIOTE example

[tBStar]

I am using the gpiote example in the peripheral folder as a base project which works as is. I can see that the example is counting rising edges properly matching the frequency on my scope in a continuous way; however, I am struggling to change it to satisfy the following requirements:

- Fire the timer_handler_read event on demand from a button press.

- Get count of the rising edges that occurred for 1ms

- Average out 5 sampling counts for accuracy

Thanks

[tBStar]

Hi,

Thanks for the feedback. I've replaced the button with a 3rd timer that triggers the count which works just fine. However, the current consumption increased from ~10 uA up to 400uA.

Is this because the 3rd timer requires HF clock? How can I reduce the current consumption while using Timer3?

Thanks

[ovrebekk]

Hi

A TIMER module in counter mode should draw less current than one in timer mode, but is this the only TIMER module that you are using?

A TIMER in timer mode will use considerably more current than the RTC timers, because they use the HF clock as you say. 

Best regards
Torbjørn