not receiving data in serial when connecting the tx and rx pin with lpc controllerhttps://devzone.nordicsemi.com/f/nordic-q-a/119654/not-receiving-data-in-serial-when-connecting-the-tx-and-rx-pin-with-lpc-controllerHi i am using ble app uart example of nordic 5 sdk sodt device 140 for nrf52840 dk . i am configured that as peripheral my code works fine suddenly i face a issue that data is not receiving on serial com of ble app uart peripheral code . i faced thisen-USTelligent Community 13Mon, 10 Mar 2025 11:50:57 GMTRE: not receiving data in serial when connecting the tx and rx pin with lpc controllerhttps://devzone.nordicsemi.com/thread/526531?ContentTypeID=1Mon, 10 Mar 2025 11:50:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:39eaf753-4cdc-402c-a8cd-fc4ab73869d3Kenneth<p>Hello,</p> <p>If there are issues with serial communication here are some suggested debug steps:</p> <p>1. In addition to RXD and TXD, make sure ground is connected between the two boards.</p> <p>2. Make sure the supply voltage is about same level.</p> <p>3. Make sure baudrate is the same.</p> <p>4. If hadware flow control (cts and rxd) pins are used, make sure these are also connected.</p> <p>If you still can&#39;t find the problem, then make sure to connect a logic analyzer to the pins, so you can check&nbsp;that all the above are correct (and also check data).</p> <p>Kenneth</p><div style="clear:both;"></div>