how to create a timer ms on nRF Connect SDK ?

RE: how to create a timer ms on nRF Connect SDK ?

yoyou — Wed, 22 Dec 2021 07:44:11 GMT

thank you very much

RE: how to create a timer ms on nRF Connect SDK ?

Edvin — Tue, 21 Dec 2021 13:22:37 GMT

Oh, sorry. I didn't catch that you were doing this in NCS.

The app_timer is not present in the nRF Connect SDK (NCS). You can look into the k_timer documentation which in many ways is the equivalent of app_timer in NCS.

I can recommend the section Using a Timer Expiry Function, as this also shows you how to implement the k_work. It may not be needed in your case, but if you have some interrupt dependent work you need to do in your app_timer, you can use this.

Based on your snippet above, you shouldn't need the k_work, but you can increment the ms_timer directly in your "my_timer_handler()" interrupt.

Best regards,

Edvin

RE: how to create a timer ms on nRF Connect SDK ?

yoyou — Tue, 21 Dec 2021 01:02:57 GMT

Hello, Edvin,

thanks for reply.

These codes work well on nRF SDK17.02,

but i'm using nRF Connect SDK 1.8.0.

build error: app_timer.h: No such file or directory

is it need cross use nRF SDK17?

what does the text in the red box mean？

what shall I do?

thanks

RE: how to create a timer ms on nRF Connect SDK ?

Edvin — Mon, 20 Dec 2021 13:00:07 GMT

Hello,

It looks like you are on the right track. Does it work? If not, what does app_timer_create() and app_timer_start return?

Best regards,

Edvin