Direct Test Mode coexisting with the BLE stackhttps://devzone.nordicsemi.com/f/nordic-q-a/81145/direct-test-mode-coexisting-with-the-ble-stackHi, I would like to include the direct test mode in my default application that runs the BLE stack. Is this possible ? Ideally I am implementing a custom NUS like service under BLE which instructs the unit to go into an appropriate test mode after disconnectingen-USTelligent Community 13Thu, 28 Oct 2021 09:39:37 GMTRE: Direct Test Mode coexisting with the BLE stackhttps://devzone.nordicsemi.com/thread/336396?ContentTypeID=1Thu, 28 Oct 2021 09:39:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f53a0986-8656-488f-a903-035c9f788fb5ovrebekk<p>Hi</p> <p>In order to run DTM mode you would have to disable the Bluetooth stack completely, and it doesn&#39;t seem like there is a way to do that at the moment. I will double check this with the software team to be sure.&nbsp;</p> <p>As for your undefined reference error, could you try to set CONFIG_NRFX_PPI=y in your prj.conf file?</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>