https://devzone.nordicsemi.com/f/nordic-q-a/123939/nrf7002-dk---proprietary-protocol---uart-rtu-framingHello, I need to detect the end of messages coming through UART. nRF7002 asks requests and the device connected via UART responds. Baudrate is set to: 921600. It is a proprietary protocol similar to MODBUS, where 2 bytes are be used to determine theen-USTelligent Community 13Wed, 27 Aug 2025 21:58:38 GMThttps://devzone.nordicsemi.com/thread/546983?ContentTypeID=1Wed, 27 Aug 2025 21:58:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bdc509f9-cb09-418b-846e-eb3d951da4a9Hieu<p>Hi iotdeveloper,</p> <p>The nRF7002 doesn&#39;t provide UART capability, so you would be&nbsp;actually using a different&nbsp;Nordic SoC here. On the nRF7002-DK, that would be the nRF5340.</p> <p>There is a Modbus implementation in Zephyr that you can reference. It looks like their strategy for baud rate higher than 38400 is to simply delay for more than 3.5 character times. Refer:&nbsp;<a href="https://github.com/nrfconnect/sdk-zephyr/blob/ncs-v3.1.0/subsys/modbus/modbus_serial.c#L585-L590">https://github.com/nrfconnect/sdk-zephyr/blob/ncs-v3.1.0/subsys/modbus/modbus_serial.c#L585-L590</a>.</p> <p>At the&nbsp;baud rate as high as 921600, if you want&nbsp;to optimize performance, you will have to use <a href="https://docs.nordicsemi.com/bundle/ps_nrf5340/page/dppi.html">DPPI</a> to connect UARTE and <a href="https://docs.nordicsemi.com/bundle/ps_nrf5340/page/timer.html">TIMER</a> tasks and events.</p> <p>Hieu</p><div style="clear:both;"></div>