https://devzone.nordicsemi.com/f/nordic-q-a/3994/nrf51422-ppi-and-interrupt-latencyI need to do some single-cycle precision time measurement on the RADIO events. I am currently using PPI, configuring the radio events to to trigger timer tasks. From what I have read about the M0 core, the interrupts have fixed predictable executionen-USTelligent Community 13Thu, 09 Oct 2014 15:53:39 GMThttps://devzone.nordicsemi.com/thread/14351?ContentTypeID=1Thu, 09 Oct 2014 15:53:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:86e52b95-62f0-4220-98b2-feb18534bc73Asbj&#248;rn<p>Not more than what is already stated in the <a href="https://www.nordicsemi.com/eng/nordic/download_resource/20339/11/53334126">nRF51822 product specification</a> and the <a href="https://www.nordicsemi.com/eng/nordic/download_resource/20337/10/86904397">nRF51 reference manual.</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/14350?ContentTypeID=1Tue, 07 Oct 2014 11:30:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0cb996fd-397e-448d-822f-70c222ba0124Vito<p>Thanks. Is there a document where I can see the timings of various functions used in nrf51xxx, in general?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/14349?ContentTypeID=1Tue, 07 Oct 2014 11:26:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:da20b4d6-4d06-4bc9-8f9d-3a6dfd958c4aAsbj&#248;rn<p>The PPI timing from event to task is one clock cycle. So yes, the PPI event will have a deterministic execution time.</p><div style="clear:both;"></div>