Repeatitive Timer and Edge Counter in nRF5340

[mexco]

I need repetitive Timer and Edge Counter in my application. There is is a single Timer Peripheral that can be used either as a Timer or Counter.  As well, further in counter mode, it is required to count both edges pe second. SO, how can all these be achieved ?

[Sigurd]

Hi,

I believe I have some code here that does what you describe:

https://github.com/sigurdnev/ncs-playground/blob/master/samples/pulse_detector/src/main.c

[mexco]

Hi, I have already used a Timer using Zephyr Kernel s below:

K_WORK_DEFINE(my_work, my_work_handler);

void my_timer_handler(struct k_timer *dummy)
{
k_work_submit(&my_work);
}

K_TIMER_DEFINE(my_timer, my_timer_handler, NULL);

void my_work_handler(struct k_work *work)

{

}

k_timer_start(&my_timer, K_SECONDS(4), K_SECONDS(30));

Form above it is not clear that which Timer has been used in it ?

[Sigurd]

mexco said:

Form above it is not clear that which Timer has been used in it ?

The zephyr kernel timer is using RTC1

https://github.com/nrfconnect/sdk-zephyr/blob/main/drivers/timer/Kconfig.nrf_rtc#L11