https://devzone.nordicsemi.com/f/nordic-q-a/66306/debug-nrf52840-with-nrf9160Hi, i have two boards with me i.e. nrf52840DK and nrf9160DK. I want to debug nrf52840DK using nrf9160DK, I don&#39;t want to use onboard jlink on nrf52840Dk, is it possible to do as we have switch to toggle between nrf52 and nrf9160 on nrf9160DK.en-USTelligent Community 13Thu, 24 Sep 2020 09:45:46 GMThttps://devzone.nordicsemi.com/thread/271279?ContentTypeID=1Thu, 24 Sep 2020 09:45:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:91e96ff0-151a-49b1-8880-e4496a3ff88aMartin Lesund<p>Hi Raj,<br />To use the Debugger on the nRF9160DK on a nRF52840DK you just use a regular 10-pin connector from the <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nrf91_dk%2FUG%2Fnrf91_DK%2Fhw_debug_out.html" rel="noopener noreferrer" target="_blank">&quot;Debug-out&quot; on the nrf91DK </a>to the<a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nrf52840_dk%2FUG%2Fnrf52840_DK%2Fhw_debug_in_trace.html" rel="noopener noreferrer" target="_blank"> &quot;Debug-in&quot; on the nRF52DK.</a><br /><br /><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-3169f0ba7cca4e46bfa3d4c8a89562cf/pastedimage1600940688887v1.png" alt=" " /></p> <p></p> <p>Best regards,<br />Martin L.</p><div style="clear:both;"></div>