nrf_sdh_enable_request() stops with fatal error

[Kosmine]

I have an application with three other tasks beside the sdh task. I'm trying to integrate softdevice to my existing freertos application, but soon after the task scheduler starts and running nrf_sdh_enable_request() the program hangs with the line "<error> app: Fatal error" Any ideas where I should start looking for solutions...? the first thing that comes to mind is interrupt priorities, but I don't know how using a softdevice affects those... in general i have not touched the basic configuration for those levels

[AndreasF]

Hi.

Have you tried to debug your program to see what is causing this "Fatal error"?

Best regards,

Andreas

[Kosmine]

Offending line seems to be

nrf_rng_shorts_disable(NRF_RNG_SHORT_VALRDY_STOP_MASK);

[AndreasF]

Hi.

Are you sure about this?

In the SDK, it does not look like this API function writes any errors if something goes wrong. Did you follow the debug tutorial in the link i sent?

Best regards,

Andreas

[Kosmine]

Well if it helps at all is that when i call nrfx_rng_init() before nrf_sdh_enable_request() the softdevice fails to load.

[AndreasF]

Hi.

I think the problem is that you call nrfx_rng_init(), looking at this API it seems that it does not check if the SoftDevice is enabled.

Could you instead use nrf_drv_rng_init()?

Best regards,

Andreas

[Kosmine]

I suppose I can, even if that driver seems to have more overhead. I'll let you know how it goes.