https://devzone.nordicsemi.com/f/nordic-q-a/8619/nrf51-segger-programmingI am trying to program custom boards with the NRF51822 using an ARM-Flasher with no success. Using J-Flash I can connect to the device properly, program and verify the hex, but the application never runs (I can&#39;t find the Nordic device using bluetoothen-USTelligent Community 13Wed, 12 Aug 2015 06:45:24 GMThttps://devzone.nordicsemi.com/thread/31537?ContentTypeID=1Wed, 12 Aug 2015 06:45:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9972c0dc-929d-47b2-b123-aa34ff895705Susheel Nuguru<p>seems like your UART code has asserted somewhere. Atleast we now know that the board works fine.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/31536?ContentTypeID=1Tue, 11 Aug 2015 15:09:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:94ee63e7-3e50-41b7-8bf1-6621d784d9eeTy Locke<p>Found the problem this morning. Our application is built from the ble_app_uart example and for some reason the uart is causing the app not to run on the nrf51822. When comment our the uart initialization from main.c and program the custom boards again the app runs fine.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/31535?ContentTypeID=1Tue, 11 Aug 2015 10:35:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cf2030d6-e583-43da-8f30-f18b7c3aa2a1Susheel Nuguru<p>We have been using J-Flash internally on dev kits and we have seen no problems. I think Segger uses same way to communicate with nrf51 chips within their different products.</p> <p>Are you flashing some application without softdevice? It is best to get standalone example like blinky work on your board before trying out any other complicated tasks.</p><div style="clear:both;"></div>