https://devzone.nordicsemi.com/f/nordic-q-a/46896/nrfjprog-pinreset-while-connected-with-rtt-viewerWhen connected with RTT viewer, a pin reset with nrfjprog shows a J-Link Error popup saying: J-Link currently uses target interface SWD while current debugger tries to select target interface JTAG. Is this normal? Can it be avoided?en-USTelligent Community 13Mon, 06 May 2019 10:55:41 GMThttps://devzone.nordicsemi.com/thread/185432?ContentTypeID=1Mon, 06 May 2019 10:55:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fae0a9c0-f812-475d-b9c4-3ece05bbbeedJared<p>Yes, nrfjprog use the SWD interface to issue a pin reset, this is not supported when the SWD is already in use by the RTT viewer.&nbsp;</p> <p>An alternative would be to switch logger backend to UART</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/185378?ContentTypeID=1Mon, 06 May 2019 08:47:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f42f51be-54f6-4f07-a23d-6dbc7f0a457abds<p>I understood that, but does it mean a pinreset is not supported while using the SWD interface?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/185355?ContentTypeID=1Mon, 06 May 2019 07:29:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6b1cfb8c-317a-4bc7-ab2f-8f337a9164a4Jared<p>Hi,</p> <p>Yes, the nRF52 doesn&#39;t support JTAG but SWD.</p> <p>Best regards</p> <p>Jared&nbsp;</p><div style="clear:both;"></div>