How to wake up the CPU from WFI using GPIO, but not using interrupt?https://devzone.nordicsemi.com/f/nordic-q-a/121940/how-to-wake-up-the-cpu-from-wfi-using-gpio-but-not-using-interruptWe&#39;re developing a low-power application on the nRF9160 where we need the device to stay connected to the server over LTE, so we cannot enter System OFF mode. Instead, we&#39;re using PSM sleeping mode for LTE, and leave CPU in __WFI. We want to wake theen-USTelligent Community 13Tue, 03 Jun 2025 16:58:23 GMTRE: How to wake up the CPU from WFI using GPIO, but not using interrupt?https://devzone.nordicsemi.com/thread/537926?ContentTypeID=1Tue, 03 Jun 2025 16:58:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6020d380-a06a-4ece-8aff-b9859860d828Achim Kraus<p>You&#39;re welcome.</p><div style="clear:both;"></div>RE: How to wake up the CPU from WFI using GPIO, but not using interrupt?https://devzone.nordicsemi.com/thread/537924?ContentTypeID=1Tue, 03 Jun 2025 16:50:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0daa7381-610f-4157-a035-3c24c0d32da6harryle<p>Thank you so much for the solution. After switching from interrupt-on-edge to interrupt-on-level,&nbsp;the power reduced&nbsp;to the desired level.</p><div style="clear:both;"></div>RE: How to wake up the CPU from WFI using GPIO, but not using interrupt?https://devzone.nordicsemi.com/thread/537595?ContentTypeID=1Mon, 02 Jun 2025 07:19:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7c1b8db9-279e-43bd-9eb6-71cca57a5cddAchim Kraus<p>Do you use:</p> <p>&amp;gpio0 {<br />&nbsp; &nbsp; sense-edge-mask = &lt;0xffff&gt;;<br />};</p> <p>(or similar) in an overlay to mask the used interrupt GPIO?</p> <p>Using &quot;GPIO_INT_EDGE_TO_INACTIVE&quot; without that mask drains some more energy.&nbsp;</p> <pre></pre><div style="clear:both;"></div>