https://test-devzone.nordicsemi.com/f/nordic-q-a/88359/custom-uart-pin-on-nrf52840I have developed a custom board using nrf52840 IC and I need to use UART. For this I have two pins available P0.19 and P0.20 to be configured as RX and TX. I checked those pins in boards.h, where P0.19 is used as QSPI CLK and P0.20 is used as QSPI IOen-USTelligent Community 13 Non-ProductionThu, 02 Jun 2022 09:02:45 GMThttps://test-devzone.nordicsemi.com/thread/370622?ContentTypeID=1Thu, 02 Jun 2022 09:02:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2e36ca8b-23de-4df4-b56a-928d5370bed3user107729<p>Hi Jash,</p> <p>are you working on the nRF Connect SDK?</p> <p>-Priyanka</p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/370370?ContentTypeID=1Wed, 01 Jun 2022 08:53:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8dcfea7f-2d42-4b43-8618-c9df1e0d792buser116513<p>I have checked the config file and qspi isnt initialized there. But I am not able to utilize those pins for uart.</p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/370369?ContentTypeID=1Wed, 01 Jun 2022 08:51:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:18679c0f-0b6d-4866-aed1-18c62848cfc9user107729<p>If your using a custom board, then as long as you do not initialize the QSPI peripheral, the pins should work without any modifications.</p> <p>-Priyanka</p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/370322?ContentTypeID=1Wed, 01 Jun 2022 05:39:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1c580855-24f4-4ef7-880a-9347342d6789user116513<p>I am using the nrf52840 Ic</p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/370146?ContentTypeID=1Tue, 31 May 2022 08:59:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ffb0bbee-81a6-411b-8c54-de3edaa1a9bbuser107729<p>Hi Jash,</p> <p>Are you using a custom board or an nRF52840 DK?</p> <p>Best Regards,</p> <p>Priyanka</p><div style="clear:both;"></div>