https://devzone.nordicsemi.com/f/nordic-q-a/38011/ant-acknowledge-message-send-resets-the-deviceHi, I am using a NRF52832 with S212 in a custom board with a host processor. The host processor configures the NRF52 through UART. The custom board is configured as slave.The master is an application in a PC with an ANT receiver. The slave and theen-USTelligent Community 13Mon, 03 Sep 2018 07:58:57 GMThttps://devzone.nordicsemi.com/thread/146902?ContentTypeID=1Mon, 03 Sep 2018 07:58:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:99eabe88-df02-4b12-adf1-bbcaecb1ab12Kenneth<p>Hi,</p> <p>Sounds to me like you are asserting on an error returned from&nbsp;sd_ant_broadcast_message_tx() or&nbsp;sd_ant_acknowledge_message_tx().&nbsp;</p> <p>By default when there is an assert the application will reset, this is default behavior done in&nbsp;app_error_fault_handler(). You can define DEBUG (in Preprocessor Symbols) and thereby set a breakpoint in&nbsp;app_error_fault_handler() to find the exact error code, file name, and line number. Likely you&nbsp;can ignore the error code in <span>ant_message_send() instead of calling&nbsp;APP_ERROR_CHECK(err_code);</span>.</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>