https://devzone.nordicsemi.com/f/nordic-q-a/38569/nrf52-level-triggered-interruptI&#39;m using the nrf52 to connect to a CAN bus via mcp2515. This chipset features an interrupt pin that will pull low when any interrupt is triggered and will stay low until all interrupt conditions are cleared . Currently I only seem to be able to attachen-USTelligent Community 13Mon, 17 Sep 2018 12:31:58 GMThttps://devzone.nordicsemi.com/thread/149032?ContentTypeID=1Mon, 17 Sep 2018 12:31:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8d491ac1-abb9-42a4-8eec-8d67d4598cd6Kenneth<p>Hi,</p> <p>I believe there are two ways to solve this, either using PORT event or falling edge as you do today:</p> <p>1. PORT event, in that case configure the GPIO pin with sense mechanism in PIN_CNF register (this is level-triggered). You will have to check the (NRF_GPIO) LATCH register to find the pin which triggered the (NRF_GPIOTE) PORT event.</p> <p>2. Use as today the falling edge interrupt, but make sure that&nbsp;after enabling the interrupt you manually read the pin to check if it may already be low. If it&#39;s already low execute the callback&nbsp;handler directly to handle the interrupt.</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>