NRF52 Calculation Method Between Rising Edges

[Glory]

HI.

I'm developing a nRF52 custom board.

I use a Crypto chip, and I have to calculate and store the count value between the Rising Edges.

How should I do it?

Please reply.

[Glory]

Oh...! 
There are a lot of things I don't know.

Thank you for helping me. I'll test the part you've mentioned after I've corrected it.

[Glory]

Handler does not work after timers_init.
timer_cfg.mode = NRF_TIMER_MODE_TIMER
timer_cfg.mode = NRF_TIMER_MODE_LOW_POWER_COUNTER

Is it correct to use these two functions together?

[Sigurd]

Glory said:

Is it correct to use these two functions together?

No, not for the same timer instance.

I made some adjustment to the example, e.g. added Segger RTT logging. It will count the number of low to high pulses for the duration of 10sec(COUNT_READ_INTERVAL), print the number, then it will restart counting from 0. I tested this with SDK 15.3:

Attachment: gpiote_timer_ppi.zip