nRF51822 doesn`t execute hardware resethttps://devzone.nordicsemi.com/f/nordic-q-a/10038/nrf51822-doesn-t-execute-hardware-resetHello, on our custom hardware design, the hardware reset won`t be executed after programming with nrfjprog.exe, until complete new boot with disconnecting Vcc. After reconnecting Vcc, reset works as expected. I have meassured the hardware pin. Theen-USTelligent Community 13Thu, 12 Nov 2015 08:27:35 GMTRE: nRF51822 doesn`t execute hardware resethttps://devzone.nordicsemi.com/thread/37207?ContentTypeID=1Thu, 12 Nov 2015 08:27:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:72e61b5a-a599-4c6d-8c64-e03412a73980run_ar<p>I guess that you are somehow accidental entering debug mode again. You might need a pull up/down on swdio and swdclk, somewhere between 1k-10k.</p><div style="clear:both;"></div>RE: nRF51822 doesn`t execute hardware resethttps://devzone.nordicsemi.com/thread/37203?ContentTypeID=1Wed, 04 Nov 2015 15:41:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3960f283-c928-4242-8b6f-e22b1605ffd7Andreas<p>Thank you, I found the settings. Unfortunately all parameters were setted correcly. But when programming from KEIL, the reset sometimes doesn`t work after reset. Maybe there is another problem. I use the SEGGER J-Link lite programm from the Nordic development kit.</p><div style="clear:both;"></div>RE: nRF51822 doesn`t execute hardware resethttps://devzone.nordicsemi.com/thread/37202?ContentTypeID=1Wed, 04 Nov 2015 10:00:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:79cc21c7-160a-4a17-8509-0d6729a73e0crun_ar<p>Yes, these settings are well hidden in Keil. In &quot;Options for Target&quot; go to the &quot;debug&quot; tab. Click &quot;Settings&quot; for the J-Link. In the new window go to the &quot;Flash Download&quot; tab. Choose &quot;Reset and Run&quot; under &quot;Download Function&quot;.</p><div style="clear:both;"></div>RE: nRF51822 doesn`t execute hardware resethttps://devzone.nordicsemi.com/thread/37201?ContentTypeID=1Wed, 04 Nov 2015 09:50:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:34afe2d6-bf5e-4e62-a314-31e40701240fAndreas<p>Hello Runar, the Reset is now working, after doing &quot;nrfjrog.exe --pinreset&quot;. But when I`m programming the device with KEIL, i have the same problem. Is there any option, where I can select a pinreset after programming? I searched the projct settings but without success.</p><div style="clear:both;"></div>RE: nRF51822 doesn`t execute hardware resethttps://devzone.nordicsemi.com/thread/37206?ContentTypeID=1Tue, 03 Nov 2015 20:06:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c5fa4de0-b793-4572-837b-8ef32e84d873run_ar<p>Do you mean it doesn&#39;t work even after the --pinreset? After programming the device you will have to either do a --pinreset or use the --run option to start the program.</p><div style="clear:both;"></div>RE: nRF51822 doesn`t execute hardware resethttps://devzone.nordicsemi.com/thread/37205?ContentTypeID=1Tue, 03 Nov 2015 14:28:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:810a3583-5607-4627-b805-4eb6f7295d3dAndreas<p>Hello Runar, thank you for your comment. Your right. nrfjprog.exe --pinreset did the trick. Is there any other effect especialliy to the button configuration, when the controller is in debug mode? We have some other strange effects with our buttons after programming. Sometimes they are not working directly after programming.</p><div style="clear:both;"></div>RE: nRF51822 doesn`t execute hardware resethttps://devzone.nordicsemi.com/thread/37204?ContentTypeID=1Tue, 03 Nov 2015 14:01:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2c4cc0da-64a2-48c2-82f9-e304d6d9cdb2run_ar<p>Not sure I understand you completely. I assume you are still in debug mode. Did you run nrfjprog.exe --pinreset after programming?</p><div style="clear:both;"></div>