https://devzone.nordicsemi.com/f/nordic-q-a/50200/fatal-error-after-calling-app_uart_fifo_initHello I am getting fatal error and system reset after calling APP_UART_FIFO_INIT. I want to receive some data over ble and send it to the uart. I connected physical UART to USB adapter to the RX,TX and GND pins on my nRF52 DK. I think there is aen-USTelligent Community 13Wed, 24 Jul 2019 12:05:59 GMThttps://devzone.nordicsemi.com/thread/200275?ContentTypeID=1Wed, 24 Jul 2019 12:05:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:46397bd9-a116-427c-9047-62f826a78c1dawneil<p>If you run the &#39;Debug&#39; configuration, you should get more details.</p> <p>Or just step the code in the debugger to see what happens, and where...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/200274?ContentTypeID=1Wed, 24 Jul 2019 12:01:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:93205b0e-d0ba-42e5-b01f-d1401ebcfa93mojangeex<p>Where is the error logged?&nbsp;<br />I got only this message to the console:</p> <p><br />rror&gt; app: Fatal error</p> <p>arning&gt; app: System reset </p> <p>I will try some SDK examples. Thank you&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/200267?ContentTypeID=1Wed, 24 Jul 2019 11:40:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:70bc4ece-36e6-49fb-9bdc-f60bba296cf0awneil<p>So what error, exactly, do you receive?</p> [quote userid="81950" url="~/f/nordic-q-a/50200/fatal-error-after-calling-app_uart_fifo_init"] I dont know which things can be enabled in configuration file[/quote] <p>IMO/IME, the best way is to start with&nbsp;an SDK example, or examples, which uses the feature(s) you require...&nbsp;</p><div style="clear:both;"></div>