https://devzone.nordicsemi.com/f/nordic-q-a/116950/regarding-pan-57-ppi-concurrent-operations-on-the-ppi-peripheral-will-failHi, we are seeing an rare issue that might be connected to PAN #57 for NRF51822 and are looking for some more info on this. I assume the underlying issue is some form of read-modify-write race condition for example lets say i configure group #0 to containen-USTelligent Community 13Wed, 04 Dec 2024 08:20:45 GMThttps://devzone.nordicsemi.com/thread/513353?ContentTypeID=1Wed, 04 Dec 2024 08:20:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:89067927-f588-49ba-b4da-c469a3110625Kenneth<p>Hi,</p> <p>Issue #57 was fixed on revision 3 of the nRF51822, which build code is on the chip you have?<br /><a href="https://docs.nordicsemi.com/bundle/nRF51-Series-Errata/resource/nRF51422-PAN_v3.1.pdf">https://docs.nordicsemi.com/bundle/nRF51-Series-Errata/resource/nRF51422-PAN_v3.1.pdf</a>&nbsp;</p> <p>Kenneth</p><div style="clear:both;"></div>