Exit from debug interface mode without power cycling the chiphttps://devzone.nordicsemi.com/f/nordic-q-a/67075/exit-from-debug-interface-mode-without-power-cycling-the-chipHello, regarding to another thread in this forum the debug interface mode can be turned off by sending the command &quot;writeDP 1 0&quot; via J-Link commander or by power cycling the chip. See https://devzone.nordicsemi.com/f/nordic-q-a/45441/nrf52-cannot-exiten-USTelligent Community 13Wed, 14 Oct 2020 14:37:58 GMTRE: Exit from debug interface mode without power cycling the chiphttps://devzone.nordicsemi.com/thread/274931?ContentTypeID=1Wed, 14 Oct 2020 14:37:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:da4ad9f1-110a-4dcd-9751-7ed12052c71fSigurd<p>Hi,</p> <p><span>The application can&#39;t exit debug mode, but the debugger can.</span></p> <p>You can see the recommendations here(chapter 3 and 8):</p> <p><a href="http://infocenter.nordicsemi.com/pdf/nwp_027.pdf" rel="noopener noreferrer" target="_blank">http://infocenter.nordicsemi.com/pdf/nwp_027.pdf</a></p> <p>1. To enter debug interface you request power in DP.CTRL/STAT register (DP = Debug Port)</p> <p>2. When you exit you should clear those bits</p> <p>This can only be done through the SWD (debugger), not from the CPU (application).&nbsp;</p><div style="clear:both;"></div>