dtm_init throws NRF_FAULT_ID_SDK_ERROR

[Franz]

I am using SDK V15.2 and opened the SES example for dtm. I modified RXD and TXD pins since i use a custom board based on the nRF52832.

When debugging the example on the board, i am getting stuck with the mentioned error, where i hand in a breakpoint condition.

I narrowed down the cause of the hardfault using the debug configuration in SES and located the call for the hardfault: it seems that this happens as soon as I enable the NRF_LOG in sdk_config header.

Is there some way of letting the example code log into the RTT console?

Any help on how I could proceed during debugging, is appreciated.

Thanks

[Franz]

Solved... seems like enabling logging on the SDK example causes hard to trace hardfaults... without logging, it works. Had no time to further struggle with the logging mechanism though..

[Einar Thorsrud]

Hi,

Thanks for letting us know. That makes sense since the default configuration of the logger module has UART logging enabled. And this will conflict with how UART is used in the DTM example. You should be able to use RTT logging though.

[Franz]

HI,

Well yes, I tried that but also ran into trouble (sorry i cannot remeber exactly because I was in a hurry). It´s a pity that the sdk_config.h files are selsom "complete" in the various examples, i.e. the mostly onl include the defines for the modules that are used in the SDK. That is a bit of a pain, because "just switching to RTT" soon becomes more work than one would think of. ;-)