https://test-devzone.nordicsemi.com/f/nordic-q-a/88726/nrf51822-repeated-resetHi， I have a circuit board, which is powered by the battery and runs the Bluetooth program. When the power is normally supplied, it runs well. Once the USB charges the battery at the same time, the chip program will reset repeatedly. Check that theen-USTelligent Community 13 Non-ProductionThu, 09 Jun 2022 07:35:52 GMThttps://test-devzone.nordicsemi.com/thread/371557?ContentTypeID=1Thu, 09 Jun 2022 07:35:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6ffe9318-6110-4b33-b240-f61fc07f7b85user108933<p>Hello,</p> <p>You can send us the schematic and layout of your board.</p> <p>&#39;&#39;<span>Once the USB charges the battery at the same time, the chip program will reset repeatedly. Check that the power supply voltage and the chip reset pin are not powered off.&nbsp;&#39;&#39; Could you explain elaborately what actually you meant here?</span></p> <p><span>Thanks.</span></p> <p><span>Best Regards,</span></p> <p><span>Kazi Afroza Sultana</span></p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/371323?ContentTypeID=1Wed, 08 Jun 2022 08:45:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e4266e7f-3c0c-4a6a-aa4f-5fff236d98b9user18935<p>Schematic? EMI check also needs layout.</p><div style="clear:both;"></div>