Zephyr & RTC

RE: Zephyr & RTC

Håkon Alseth — Thu, 24 Oct 2019 13:46:58 GMT

Hi Ed,

This should be fixed in master now, where you can select the specific NRFX component you'd want to use.

However, when using an older codebase than master, you need to do this:

https://github.com/Rallare/fw-nrfconnect-nrf/blob/nrf9160_samples/samples/nrf9160/nrfx/rtc/prj.conf#L11

Kind regards,

Håkon

RE: Zephyr & RTC

EdP — Thu, 24 Oct 2019 13:44:51 GMT

Håkon,

Thanks for your reply. I tried to follow the NRFX example but it fails to compile. It complains about NRFX_RTC0_INST_IDX which in my case is not defined. I did my homework and figured out that instantiation depends on CONFIG_NRFX_RTC symbols.

And here is where I'm stuck because I can't find a valid place where to define these parameters. menuconfig shows them in red. Kconfig is ignored. So, where should I define these symbols provided that my setup is Unix Makefiles, not SEGGER?

RE: Zephyr & RTC

Håkon Alseth — Tue, 22 Oct 2019 10:32:02 GMT

You could post a thread on this in the backstage part of the forum: https://devzone.nordicsemi.com/nordic/backstage/

RE: Zephyr & RTC

Håkon Alseth — Tue, 22 Oct 2019 10:28:57 GMT

Hi,

1. RTC1 is used by the kernel: https://github.com/NordicPlayground/fw-nrfconnect-zephyr/blob/master/drivers/timer/nrf_rtc_timer.c#L16

2. Yes, the peripheral RTC0 can be used by the application: https://infocenter.nordicsemi.com/topic/ps_nrf9160/rtc.html?cp=2_0_0_5_10_9#topic

3. See this example on how to use nrfx_rtc directly: https://github.com/Rallare/fw-nrfconnect-nrf/tree/nrf9160_samples/samples/nrf9160/nrfx/rtc

Kind regards,

Håkon

RE: Zephyr & RTC

EdP — Tue, 22 Oct 2019 09:39:28 GMT

In fact, this is my ticket. I tried to submit it but it didn't work, don't know why. So I asked a friend to post it for me.

Is there an email address where I can send details about DevZone failure to?