https://devzone.nordicsemi.com/f/nordic-q-a/49494/program-external-bmd340ar-with-nrf52dkHello there, i am using the nrf52dk and want to program a selfmade breakout board which includes the BMD-340-ar Bluetooth module from rigado. I use Segger Embedded Studio and the nrf52 sdk for programming. My current problem is that as soon as ien-USTelligent Community 13Mon, 08 Jul 2019 18:51:31 GMThttps://devzone.nordicsemi.com/thread/197221?ContentTypeID=1Mon, 08 Jul 2019 18:51:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:41bf9259-0bb6-46e0-8a9a-317a6ccc140cSimonB<p>just found the problem, swdio and swdclk on my board have been reversed.</p> <p>Now with this setup:</p> <p>&nbsp;<img src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1562611853676v2.png" alt=" " /></p> <p>it works.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/197212?ContentTypeID=1Mon, 08 Jul 2019 17:30:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:16694ae5-eb09-4792-98da-e9c25db23628SimonB<p>Hi,</p> <p>thanks for your answer.</p> <p>Yes, i have tried both. With and without external voltage supply for my board. Both times without success.</p> <p>Best Regards,</p> <p>Simon&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/197174?ContentTypeID=1Mon, 08 Jul 2019 14:28:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e55866f5-979b-4d2e-999e-0c1b07502ba8Marjeris Romero<p>Hi,</p> <p>Have you remember to power your custom board? The custom board needs to be powered externally, it will not get any power from the debug pins.</p> <p>Best Regards,</p> <p>Marjeris</p><div style="clear:both;"></div>