https://devzone.nordicsemi.com/f/nordic-q-a/10014/spi-slave-cs-resets-nrf52I am using the spi slave example code from SDK 0.9.2 and connect the board to an Atmel SAM4S who is the SPI master. I can see that every time the CS signal is released from the Atmel the nrf52 seems to reset. What could be the reason for that behavioren-USTelligent Community 13Sun, 01 Nov 2015 17:13:02 GMThttps://devzone.nordicsemi.com/thread/37097?ContentTypeID=1Sun, 01 Nov 2015 17:13:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3a313a84-153c-4475-8027-7945da6822ceBernd (nvisionary)<p>No it does reset. I have a printf in the top of the main function. The APP_ERROR_CHECK was a good hint. I didn&#39;t think about that. Without the DEBUG define it will actually reset the chip every time. It works correctly now. Thanks!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/37096?ContentTypeID=1Sat, 31 Oct 2015 02:49:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:43e275da-5087-4b38-8d4c-c9a024550897RK<p>it seems to reset or it does reset? Do you have an error handler which resets the board, are you ending up in the error handler because of an APP_ERROR_CHECK somewhere?</p><div style="clear:both;"></div>