How to create a timer by using nRF connect SDK on nRF52840dk board

[Kalyan Agepati]

Hi nRF support team,

By using the nRF Connect SDK, I am trying to create a timer, which I can use for incrementing a counter by 1 for each second on a timer interrupt handler.

Can you please share how to create a timer and any sample code?

Regards,
Kalyan

[Håkon Alseth]

Hi,

 

In order to use interrupts in your application, you have to enable it using the OS wrapper functions, like done here:

https://github.com/nrfconnect/sdk-nrf/blob/master/samples/peripheral/radio_test/src/radio_test.c#L577-L581

 

For your case, you need to adjust "0" to "2".

 

Note that you can also create a kernel timer (based on the 32k RTC):

https://docs.zephyrproject.org/latest/reference/kernel/timing/timers.html#using-a-timer-expiry-function

 

Kind regards,

Håkon

[Kalyan Agepati]

Hi Hakon,

Thanks for the quick response and suggestion.

I have adjusted "0" to "2", but still I am not getting any nRF timer event.

I have tried Zephyr kernel timers (based on the 32k RTC) and it is working as expected and I am receiving timer event handler. Thanks for the suggestion.

Regards,

Kalyan