Debugging NRF51422?? How can i use err_code to debug my nrf51422??

[Rahul Faizu]

I'm a beginner, the question might be simple but its really important for me. where does this error codes get store?? How to make use of err_code and whats the best way to debug my application?

[MartinBL]

One way to use the err_code is to define DEBUG globally, like shown in the image, and hence use APP_ERROR_CHECK(err_code); to assert the error code. This way, if you get an error, you will end up in a while forever loop in app_error_handler() (defined in app_error.c) and you can find out in which file and line number your error occurred using the debugger.

[Rahul Faizu]

Thanks Martin for your help.

[syntroniks]

I wanted to add that I supplied my own app_error_handler and could not get line number & filename without the DEBUG preprocessor directive. Hope this helps someone in the future.