ble_stack_init asserts when enabling RTC2 ( nRF52832, SDK14.2, s132_nrf52_5.1.0 )

[kont40]

Hello,

I am working on a custom project with nRF52832 using SDK14.2 and s132_nrf52_5.1.0.

Now I am trying to configure and use RTC2, and face the problem that ble_stack_init() cannot pass and asserts, which leads to restart of the device.

For configuring RTC2 I took the lfclk_config and rtc_config from this example .

When RTC2 is not configured ble_stack_init() passes normally and BLE function works well. Also, when the code is looped before reaching ble_stack_init() , RTC2 functions normally.

I am a bit out of ideas where to seek for the problem, any advice will be appreciated.

[Jørgen Holmefjord]

Are you initializing the RTC before you initialize the softdevice? Note that the softdevice will handle LFCLK when it is enabled. You should make sure you have defined SOFTDEVICE_PRESENT in your project, and check that you do not configure the clock driver with a priority reserved by the softdevice.

[kont40]

Thanks for prompt advice: - commenting lfclk_config and moving rtc_config after the softdevice initialisation solved the problem.