https://devzone.nordicsemi.com/f/nordic-q-a/12377/nrf-open-mesh-change-ppiHi, would there be any drawback in setting TIMER_PPI_CH_START to 11 to maximize the number of free PPI for application. 14-&gt;15 should be free to use in timeslot and ppis are only used in timeslots for the mesh if I understand correctly.en-USTelligent Community 13Tue, 08 Mar 2016 09:44:52 GMThttps://devzone.nordicsemi.com/thread/46797?ContentTypeID=1Tue, 08 Mar 2016 09:44:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0ac08b61-2efa-4c25-8606-635efaf52f84Trond Einar Snekvik<p>Hi,</p> <p>As long as you keep track of the PPIs for your own application, and make sure there aren&#39;t any conflicts, there shouldn&#39;t be any problems with changing the PPI channels for the mesh timer. In fact, version v0.7.0 and up don&#39;t use the PPI channels at all. They might be used in future releases though, so I wouldn&#39;t start throwing them out completely unless strictly necessary.</p> <p>You&#39;ll be fine moving them up to 11, now and in the future :) In fact, you can move them all the way up to 13, as the last slot is only used for timestamping, and cannot be assigned a PPI channel as the timer_control module is today. This is unlikely to change.</p><div style="clear:both;"></div>