https://devzone.nordicsemi.com/f/nordic-q-a/34408/the-nrf-connect-application-can-not-search-the-device-after-i-modified-the-rx-tx-pin-in-my-own-pcb-board-can-anyone-tell-me-whyThe nRF Connect application can not search the device after I modified the Rx, Tx pin in my own PCB board.Can anyone tell me why? The UART can run well,but the application can not search the device.en-USTelligent Community 13Tue, 22 May 2018 08:07:36 GMThttps://devzone.nordicsemi.com/thread/132667?ContentTypeID=1Tue, 22 May 2018 08:07:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3f13a0d8-707b-4a5b-a28b-f509bb3279b7ovrebekk<p>Hi</p> <p>It should not, but if you get a lot of interrupts from the UART it could affect the processing of BLE events, which can affect the SoftDevice operation.&nbsp;</p> <p>How do you verify that the UART runs well?&nbsp;</p> <p>Are you able to debug the code and see if any SoftDevice or driver calls return an error code?</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/132379?ContentTypeID=1Thu, 17 May 2018 06:09:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f118ec36-1df2-48eb-903d-bb0a32f736fepocket_chan<p>I didn&#39;t enable HWFC.、</p> <p><span>Will the configuration of UART affect the initialization of softdevice?</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/132312?ContentTypeID=1Wed, 16 May 2018 14:18:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0445bcaa-6d6d-4afd-9693-5d24a9ca96b0ovrebekk<p>Hi</p> <p>Do you have hardware flow control (HWFC) enabled?</p> <p>If so, can you try to enable internal pull ups on the flow control lines (CTS and RTS) ?</p> <p>I have some times seen issues if these lines are floating when HWFC is enabled.&nbsp;</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>