https://devzone.nordicsemi.com/f/nordic-q-a/4574/interrupt-towards-own-functionI should have an own function wich is called upon after Port 3 goes low. I haven&#39;t succeeded yet using ppi channels. (I&#39;m using the NRF51422) For the moment the code is: static void gpiote_init(void) { nrf_gpiote_event_config(0,3, NRF_GPIOTE_POLARITY_HITOLOen-USTelligent Community 13Mon, 01 Dec 2014 15:07:21 GMThttps://devzone.nordicsemi.com/thread/16201?ContentTypeID=1Mon, 01 Dec 2014 15:07:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:57c7feaa-5c8e-41a2-aa2d-814e16af8f2bPetter Myhre<p>Please have a look at <a href="https://devzone.nordicsemi.com/question/430/something-simple/">this</a> question. If this doesn&#39;t cover what you need, please let me know.</p><div style="clear:both;"></div>