RE: SD card initialization failure sometimes

Karl Ylvisaker — Wed, 09 Dec 2020 14:11:21 GMT

Hello,

[quote user=""]The write and read functions works fine, but the initialization does not work sometimes and it stays in a loop (because of the way the event handler is working).[/quote]

I too would suspect it to be due to the way the event handler is set up.
I notice that you are never checking the returned error code of the app_sdc_init call. Could you please make sure to pass the returned error code to an APP_ERROR_CHECK?
You should always check the returned error codes, since you will not know that the function has failed unless you do.

Please also make sure that you have DEBUG enabled in your preprocessor defines, like shown in the included image:

This will make a more detailed debug message be written to your log when an APP_ERROR_MESSAGE is passed a non-NRF_SUCCESS error code.

Please do this, and let me know what is written to the logger when the initialization fails.

Looking forward to resolving this issue together!

Best regards,
Karl