https://devzone.nordicsemi.com/f/nordic-q-a/84749/dtm-with-libuartHello!!!! I use libuart to carry out DTM test. I start DTM test use follow codes: after the codes executed, when i send data to device use libuart, it receive nothing, but nrf_libuarte_async_tx() works.en-USTelligent Community 13Tue, 15 Feb 2022 12:38:34 GMThttps://devzone.nordicsemi.com/thread/353097?ContentTypeID=1Tue, 15 Feb 2022 12:38:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1c5e7427-9324-4263-b123-9146d9f90c29Simonr<p>Hi</p> <p>The DTM application is not really made for doing lots of changes to, as it&#39;s only a test application specifically enabling the test functions described in the Bluetooth spec v5.2, Vol. 6, Part F.</p> <p>Is there a specific reason you want/need to use the libuart instead of &quot;normal&quot; UART in your case?</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/352956?ContentTypeID=1Mon, 14 Feb 2022 16:13:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d7336bb8-ebd9-4c49-bf19-e7e9505a566ayangyongkai<p><span>use&nbsp;app_uart&nbsp;instead of libuart to carry out DTM test, everything is OK.&nbsp;</span><span>app_uart can receive anything.How can i fix it when use libuart.</span></p><div style="clear:both;"></div>