How to set RTC time in nRF9160DK

[Khushi]

Hi,

I am new to nRF9160DK . I want to set RTC time for the nRF9160DK.

In the application we are getting UTC time from NTP server and we need to set RTC .

I have referred the example asset tracker for getting time from NTP server?

Could you please let me know if any example is available to set RTC?

Thank you in advance.

Best Regards,
Khushi

[Hakon]

Hello,

there is this "unofficial" RTC sample that you can look at.

[Adrian Boc]

Hi Hakon,

This example suggests to add RTC0 to spm.c to run in non-secure mode. What does it exactly mean? I'm looking at nrf/subsys/spm/spm.c - enabling RTC0 is behind NRF_RTC0 macro in spm_config_peripherals(). Does it mean that adding "-DNRF_RTC0" to CONFIG_COMPILER_OPT in https://github.com/Rallare/fw-nrfconnect-nrf/blob/nrf9160_samples/samples/nrf9160/nrfx/rtc/prj.conf is enough?

--EDIT--

It seems the following parameters should be added to prj.conf to build the example:

CONFIG_SPM_NRF_RTC0_NS=y
CONFIG_NRFX_RTC=y
CONFIG_NRFX_RTC0=y

With above parameters, the following line is not required:

CONFIG_COMPILER_OPT="-DNRFX_RTC_ENABLED=1 -DNRFX_RTC0_ENABLED=1"

BR,
Adrian