https://devzone.nordicsemi.com/f/nordic-q-a/61675/nrf52810-ble-glitchHi! I&#39;m trying to transfer data from UART to BLE in NRF52810. NRF52810 connects MSP430 controller via UART, MSP430 sends packet of 16 bytes lenght every 2ms (500 times in a second). UART baud rate is 460800 (NRF is uses 0x075F7000 constant). NRF52810en-USTelligent Community 13Tue, 16 Jun 2020 10:24:12 GMThttps://devzone.nordicsemi.com/thread/255213?ContentTypeID=1Tue, 16 Jun 2020 10:24:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ca8100b9-cf2c-49a3-a2b0-8c2d1dc3764cMike Anti<p><span>I add hardware flow control in the project and test it. At first sight, this seemed to solve the problem. But then the distance between&nbsp;</span><span>peripheral and cenrtal increase over 5 meters, RTS pin sticks hight level(deactivate) fast enough and stays forever, although receiver FIFO is empty. Only next data transfer makes it low(activete).</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/251146?ContentTypeID=1Thu, 21 May 2020 18:27:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:173a38f3-cc25-429d-907c-eb7fd3f292b7Turbo J[quote userid="90537" url="~/f/nordic-q-a/61675/nrf52810-ble-glitch"]Test with BLE transfer at 115200 also work fine!<br />Test with BLE transfer at 460800 - failed![/quote] <p>I am actually surprised that 115200 worked with BLE traffic present. Usually that is the point where those hardware flow control signals are absolutely required. Can you use these in your project? </p> <p>Also try using the highest possible interrupt priority for the UART(E).</p><div style="clear:both;"></div>