https://devzone.nordicsemi.com/f/nordic-q-a/11577/irq-latency-with-softdeviceHi, My goal is to capture on gpio burst infrared proprietary &quot;messages&quot; composed of multiple &quot;bits&quot;. The Length of each bit is around 100 to 200us. Initially I planned to use timer1 and timer2 to capture the low and high level length, store theen-USTelligent Community 13Thu, 28 Jan 2016 07:19:13 GMThttps://devzone.nordicsemi.com/thread/43735?ContentTypeID=1Thu, 28 Jan 2016 07:19:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1a77f3a1-a6ef-476d-bdd2-ecdcf4d50757Susheel Nuguru<p>+1 on RK&#39;s answer. It is not possible to capture your GPIO trasitions with that kind of accuracy when softdevice is running.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/43734?ContentTypeID=1Wed, 27 Jan 2016 16:27:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:11796c44-86fe-45a2-afa6-b4941cba94f0RK<p>There is no way to do this kind of time critical task using interrupts when the softdevice is running. You can capture a couple of edges and then turn off capture until you process them, then turn it back on again, but if I understand what you&#39;re trying to do here, it&#39;s not going to work.</p><div style="clear:both;"></div>