https://devzone.nordicsemi.com/f/nordic-q-a/98697/uart-rx-pin-pulled-upHello everyone, I am having trouble communicating with nRF5340DK kit through UART0. My baudrate is 115200 and there is no flow control. The UART RX pin (P0.22) seems to be pulled up which is causing the signal to not receive correctly. The TX pinen-USTelligent Community 13Thu, 13 Apr 2023 12:39:52 GMThttps://devzone.nordicsemi.com/thread/420247?ContentTypeID=1Thu, 13 Apr 2023 12:39:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7cb7063f-bfd2-421f-a04f-250cd75b7de7San<p>Yes indeed this was the issue. I was using the Interface USB (IF) J2 to power and debug. Powering through J3 solved my problem. Thank you Turbo !!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/420177?ContentTypeID=1Thu, 13 Apr 2023 10:36:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b4076cdd-3dd2-49d7-9651-18ba3cb47669Turbo J<p>Look at the DK backside: The P0.22 is connected to the debug (IF) MCU.</p><div style="clear:both;"></div>