https://devzone.nordicsemi.com/f/nordic-q-a/94096/using-lpcomp-with-nrf-connect-sdk-zephyrI&#39;m trying to use the LPCOMP to wake up from system OFF in Zephyr. I can see the device tree &quot;comp&quot; node definition in nrf52840.dtsi but that is about it. 1. How can I define the AIN input to the comp node in the device tree? 2. How to I setup theen-USTelligent Community 13Wed, 06 Mar 2024 07:10:09 GMThttps://devzone.nordicsemi.com/thread/472355?ContentTypeID=1Wed, 06 Mar 2024 07:10:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:15c05486-742f-4130-a396-a5106b806e6aQBSho<p>Thank you,&nbsp;</p> <p>However&nbsp;my DK board is not working with the code.&nbsp;</p> <p>But in the .dts also the&nbsp;</p> <div> <div><span>&amp;</span><span>comp</span><span> {</span></div> <div><span> </span><span>compatible</span><span> </span><span>=</span><span> </span><span>&quot;nordic,nrf-lpcomp&quot;</span><span>;</span></div> <div><span> </span><span>status</span><span> </span><span>=</span><span> </span><span>&quot;okay&quot;</span><span>;</span></div> <div><span>};</span></div> <div><span>information and it is still greyed out</span></div> </div> <p><br /><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1709708897638v1.png" alt=" " /></p> <p></p> <p>BR Sebastian</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/397297?ContentTypeID=1Thu, 24 Nov 2022 03:16:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:998bc614-d9cf-4fae-b77d-404e7c46ec16FrancoisG<p>Thank you, it looks a bit weird but it does work.</p> <p>If anyone else is interested, I distilled the example, changed every comp to lpcomp and added it to my simple project here:</p> <p><a href="https://github.com/fgervais/project-nrf-leak-detector/tree/20bef5062827cb92d8cb2c6136ccd1e757767391">github.com/.../20bef5062827cb92d8cb2c6136ccd1e757767391</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/397063?ContentTypeID=1Wed, 23 Nov 2022 07:52:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2a753608-873b-4c05-a69b-e8fde5b98d31Kazi Afroza Sultana<p>Hello,</p> <p>There is no zephyr driver for that. You need to use nrfx driver (<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfx/drivers/comp/driver.html">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfx/drivers/comp/driver.html</a>) directly instead. There is sample from previous case you can look at&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/78257/using-nrf_connect-zephyr-with-the-comparator-interrupt">https://devzone.nordicsemi.com/f/nordic-q-a/78257/using-nrf_connect-zephyr-with-the-comparator-interrupt</a>.</p> <p>Thanks.</p> <p>Best Regards,</p> <p>Kazi Afroza Sultana</p><div style="clear:both;"></div>