Hardfault when using both UART and GPIOTE, how can I solve this problem?https://devzone.nordicsemi.com/f/nordic-q-a/21516/hardfault-when-using-both-uart-and-gpiote-how-can-i-solve-this-problemHello, I feel like this question has an answer similar to this question, but I can&#39;t seem to get it working devzone.nordicsemi.com/.../ I am using the nrf51422 chip on a board I designed myself and I&#39;m using a UART and GPIO interrupt. The UART interrupten-USTelligent Community 13Fri, 21 Apr 2017 08:49:12 GMTRE: Hardfault when using both UART and GPIOTE, how can I solve this problem?https://devzone.nordicsemi.com/thread/84460?ContentTypeID=1Fri, 21 Apr 2017 08:49:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4f416a68-d83c-4311-918b-d668d01d92b9Jordi<p>It seems to be that the problem was in my main.c.</p> <p>I called the gpio_init(); function first and the init_uart(); function second. By switching this around the problem seems to be solved.</p> <p>I don&#39;t know exactly why this is. Does anyone know why this happens? I call both these functions only once, so how does this impact my code?</p><div style="clear:both;"></div>