RE: How to create a dummy timer?

ovrebekk — Tue, 14 Apr 2020 13:36:25 GMT

One of my colleagues wrote a tutorial describing how to use the app_timer library:
https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/application-timer-tutorial

If you scroll down to the "Create a repeated timer" example you can see how to initialize and start a repated timer, which is essentially what the dummy timer is.

There is no need to do anything inside the timer handler, so you can remove the GPIO toggle call from the tutorial.

Best regards
Torbjørn

RE: How to create a dummy timer?

Turbo J — Wed, 08 Apr 2020 12:23:22 GMT

APP_TIMER actually has a config option (in sdk_config.h) to keep the RTC running.

Note that these are only prescaled RTC ticks, which run at a maximum of 32.768kHz. For exact timing using the HF clock use a TIMER peripherial.