https://devzone.nordicsemi.com/f/nordic-q-a/24726/zephyr-gpio-interrupt-not-fireingI just tried the Button example on the nrf52-dk development board, and the interrupt for the defined button GPIO does not seem to * trigger Zephyr 1.8.0 ( fcb9144dc git) make BOARD=nrf52_pca10040 and the example under samples/basic/buttonen-USTelligent Community 13Wed, 30 Aug 2017 09:37:21 GMThttps://devzone.nordicsemi.com/thread/97330?ContentTypeID=1Wed, 30 Aug 2017 09:37:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0cd0b8be-f411-44dc-8faf-a309764330f0drahnr<p>Addition to the comment:</p> <p>I think the problem here was related to JLinkExe preventing a proper reset with nrfjprog tools and thus the button example never started. My own application only occasionally worked due to the fact that PULL_UP config was missing (not sure about that).</p> <p>It is apparently reproducible for some people, see my ticket at zephyr&#39;s jira:</p> <p><a href="https://jira.zephyrproject.org/browse/ZEP-2578">jira.zephyrproject.org/.../ZEP-2578</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/97329?ContentTypeID=1Tue, 29 Aug 2017 15:55:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ca89b638-d9df-4d22-83ce-4fd171703f68J&#248;rgen Holmefjord<p>Are you seeing any output on the UART at all? I tested the same example, with same version of Zephyr and I get one interrupt when I push button 1 on the nRF52 DK (PCA10040).</p><div style="clear:both;"></div>