Send UARTE data , but an error has occurredhttps://devzone.nordicsemi.com/f/nordic-q-a/37726/send-uarte-data-but-an-error-has-occurredHi , I don&#39;t know if it is related to the code below? #define UART_TX_BUF_SIZE 256 /**&lt; UART TX buffer size. */ I cut two pictures and hope to help understand the problem. I don&#39;t understand how the 0x04 framing error happened. In additionen-USTelligent Community 13Wed, 22 Aug 2018 17:00:55 GMTRE: Send UARTE data , but an error has occurredhttps://devzone.nordicsemi.com/thread/145365?ContentTypeID=1Wed, 22 Aug 2018 17:00:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:03b4c4ad-05da-49ef-9fe2-397df7a4be5dawneil<p>Is this still your DMX project?</p> <p>As your 2nd picture shows, the DMX has a BREAK condition&nbsp; before the first &quot;real&quot; UART frame.</p> <p>I think it is to be expected that the UART <em><strong>will</strong> </em>give a Framing Error on a BREAK ?</p> <p><a href="https://en.wikipedia.org/wiki/Universal_asynchronous_receiver-transmitter#Break_condition">https://en.wikipedia.org/wiki/Universal_asynchronous_receiver-transmitter#Break_condition</a></p> <p></p> <p>You will probably need to detect the BREAK separately (as the&nbsp;start&nbsp; of a new DMX protocol packet).</p> <p></p> <p>Again, DMX512 is a well-established and widely-used protocol - there must be plenty of <em>prior art</em> on this ...</p><div style="clear:both;"></div>