https://devzone.nordicsemi.com/f/nordic-q-a/47913/how-to-reserve-certain-ppi-channels-and-groupsHello. I&#39;m using nRF SDK 15.2 together with the Nordic 802.15.4 driver ( here ). When trying to add the libuarte module to my project I started having mysterious issues. I believe I&#39;ve tracked down the cause. The same PPI channels are being used foren-USTelligent Community 13Fri, 31 May 2019 09:31:03 GMThttps://devzone.nordicsemi.com/thread/190221?ContentTypeID=1Fri, 31 May 2019 09:31:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:58e78347-843a-48ea-9214-01e25b8bb358mrono<p>Thank you. That is what I thought as well.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/190213?ContentTypeID=1Fri, 31 May 2019 09:08:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2ea7ce0a-1588-41ab-94e0-27ed2e097183Simonr<p>Hi Markku</p> <p>I&#39;m sorry but the only PPI defines/functions are the ones described on the&nbsp;<a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.2.0/group__nrf__ppi.html">Infocenter</a>, and you are correct in that it doesn&#39;t seem like these provide a good way to do this, so your best bet would be to modify it in order to make the SDK and 802.15.4 driver coexist.</p> <p>Best of luck and regards,</p> <p>Simon</p><div style="clear:both;"></div>