https://devzone.nordicsemi.com/f/nordic-q-a/2348/nrf51822-uart-exampleHi All, I am trying to run the uart example that comes with NRF51822 development kit. I&#39;ve set up the mother board (nrf6310) according to the sdk doc and have flash the programming onto nrf51 board using J-Link Lite interface without any problem. Howeveren-USTelligent Community 13Fri, 25 Jul 2014 11:28:02 GMThttps://devzone.nordicsemi.com/thread/9653?ContentTypeID=1Fri, 25 Jul 2014 11:28:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:144e7fef-1385-4561-904f-954fb7954197Li<p>Thanks. What was missing wa sthe RS232 connector. I was hoping the Jlink lite would work but it doesn&#39;t apparently. After plugged in a RS232 connector, everything works.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/9652?ContentTypeID=1Thu, 17 Jul 2014 14:08:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f57501e2-f490-496c-8138-0757c4b6ea4aFormerMember<p>In order to use UART/ble_app_uart with the development kit and motherboard you have do to the following:</p> <p><strong>In the code:</strong></p> <ul> <li>Include nrf6310 instead of pca10001, in order to get correct pin assignments</li> </ul> <p><strong>On the motherboard</strong>, connect the following:</p> <ul> <li>Pin P2.0 to RXD</li> <li>Pin P2.1 to TXD</li> <li>Pin P2.2 to CTS</li> <li>Pin P2.3 to RTS</li> <li>In addition, the motherboard has to be connected to the PC via RS232 connector.</li> </ul><div style="clear:both;"></div>