https://devzone.nordicsemi.com/f/nordic-q-a/122450/evaluate-direct-test-mode-app-with-dwm3001cdkHello, I am working with the DWM3001CDK (nRF52833 + DW3110) using SDK 17.1.0 . I have successfully compiled and flashed the DTM example. I am trying to use nRF Connect for Desktop v5.2.0 to perform tests with the Direct Test Mode application. Howeveren-USTelligent Community 13Wed, 25 Jun 2025 13:52:13 GMThttps://devzone.nordicsemi.com/thread/540496?ContentTypeID=1Wed, 25 Jun 2025 13:52:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:649046a9-28a9-4941-ad62-7969e3c7ed35oussema ben khedher<p>yeah , that works with inversing pins from sw side,&nbsp;<br /><br />As they are already connected to jlink uart , inversing the ftdi cable pins have no sense.<br /><br />thank you for the support.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/540452?ContentTypeID=1Wed, 25 Jun 2025 10:49:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8bd28419-bf3b-4ed9-b6c8-5b1f8c2e556bEdvin<p>It is not an error:</p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1750848087720v1.png" alt=" " /></p> <p>It is just 0x00 0x00 being sent over UART.</p> <p>Are you certain you are using the UART pins that are connected to the on board J-Link debugger? (I am not sure what pins that are. You need to check either with the board files for your board, or ask Qorvo).</p> <p>Best regards,</p> <p>Edvin</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/540427?ContentTypeID=1Wed, 25 Jun 2025 07:54:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a435e247-af63-40a4-a197-999377705929oussema ben khedher<p>yes , just error when starting the dtm application ( picture below)&nbsp;<br />and yeah whend debuging it reach the uart init<br /><br /><br /><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1750838063175v1.png" alt=" " /></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/540397?ContentTypeID=1Tue, 24 Jun 2025 20:58:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ce2b8ab1-3db6-40d8-a04d-00aff35edfb8Edvin<p>And do you see any data on these pins using a logic analyzer? Have you tried debugging the application to see if it does in fact reach the initialization of the UART?</p> <p></p> <p>Best regards,</p> <p>Edvin</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/540376?ContentTypeID=1Tue, 24 Jun 2025 15:24:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6685ae5d-0163-4eb3-a3f4-773b18400434oussema ben khedher<p>Hi,<br /><br />Thanks for the reply , i lalready changed before posting my question.<br /><br />i just modified the pin numbers for uart to p0.15 and p0.19 for tx and rx</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/540315?ContentTypeID=1Tue, 24 Jun 2025 11:46:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4ee5246a-ae69-4a23-b556-539f15a16c2eEdvin<p>Hello,</p> <p>When you are building any of the examples from the SDK, it will use pins that are the default UART pins for the DK you are building for. If you are building for the nRF52833 DK (pca10100), then the default UART pins are P0.06(TX) and P0.08(RX). Try changing these in your board files, and see if that helps.</p> <p></p> <p>As for the Quick start application, this only works for the newer DKs (nRF54L15DK, for instance, but not the nRF52833 DK, and not for custom/3rd party boards).</p> <p></p> <p>Best regards,</p> <p>Edvin</p><div style="clear:both;"></div>