https://devzone.nordicsemi.com/f/nordic-q-a/2617/nrf51822-external-interruptHi I use the PORT EVENT to produce multiple interrupts.But I have a question by these: NRF_GPIO-&gt;PIN_CNF[BUTTON1] = (GPIO_PIN_CNF_SENSE_Low &lt;&lt; GPIO_PIN_CNF_SENSE_Pos) | (GPIO_PIN_CNF_DRIVE_S0S1 &lt;&lt; GPIO_PIN_CNF_DRIVE_Pos) | (NRF_GPIO_PIN_NOPULLen-USTelligent Community 13Sun, 02 Nov 2014 16:59:15 GMThttps://devzone.nordicsemi.com/thread/10341?ContentTypeID=1Sun, 02 Nov 2014 16:59:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a611d73d-3323-4f0d-b481-5bd94a1a792dJoe Merten<p>The provided link seems to be broken. Looks that the right one is located <a href="https://devzone.nordicsemi.com/question/2444/nrf51422-gpiote-port-events-stop-being-generated-why/?answer=2489#post-id-2489">here</a>.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/10340?ContentTypeID=1Fri, 23 May 2014 06:30:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:748c213a-1529-406f-968e-e10f141ea4d0Stefan Birnir Sverrisson<p>Hi</p> <p>I think the issue is described at the bottom of <a href="http://devzone.nordicsemi.com/index.php/nrf51422-gpiote-port-events-stop-being-generated-why#reply-2489">this thread</a>, and a workaround</p><div style="clear:both;"></div>