https://devzone.nordicsemi.com/f/nordic-q-a/34012/threadHello, I ask a question about power_manager() which is internally called sd_app_evt_wait(). I want the program to enter power_manager () to stop waiting for the event to come, but the program has been running in the main function for the loop, can noten-USTelligent Community 13Thu, 03 May 2018 13:39:46 GMThttps://devzone.nordicsemi.com/thread/130829?ContentTypeID=1Thu, 03 May 2018 13:39:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:00f6153a-6872-40f3-8f90-d6d0202a1730Sigurd<p>Hi,</p> <p>When you call&nbsp;sd_app_evt_wait() you will enter System ON idle mode, and wait for an&nbsp;application event/interrupt. If you&nbsp;stop the code execution while debugging, and<span>&nbsp;if you are in System ON idle mode,&nbsp;</span>you should see the WFE/SEV&nbsp;<span>instructions in the disassembly. It will return when an application interrupt has occurred, thereby allowing the main thread to process it if needed.</span></p><div style="clear:both;"></div>