Data is not transmitted when changing the pin setting of Tx of UART of nRF52840https://devzone.nordicsemi.com/f/nordic-q-a/38804/data-is-not-transmitted-when-changing-the-pin-setting-of-tx-of-uart-of-nrf52840Hello. I am testing the sending and receiving of UART using nRF 52840-DK. If you change the UART pin settings as follows, you can receive but you can not send. It is confirmed that the waveform of the transmission data is not displayed on the oscilloscopeen-USTelligent Community 13Sat, 22 Sep 2018 09:21:03 GMTRE: Data is not transmitted when changing the pin setting of Tx of UART of nRF52840https://devzone.nordicsemi.com/thread/149903?ContentTypeID=1Sat, 22 Sep 2018 09:21:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dc878095-48e3-44f0-b938-daa78ca531c1RK<p>P0.23 is used for the external flash memory. You have to cut a solder bridge to disconnect it from the memory and short another one to connect it to the external header if you want to use it as a GPIO. See the hardware description in the manual.&nbsp;</p><div style="clear:both;"></div>