https://devzone.nordicsemi.com/f/nordic-q-a/61672/nrf52-software-serialHi, I&#39;m using NRF52 and used inbuilt UART for communication with host controller.now i need one more uart port for log printing. so how we can achieve on NRF52? Thanks.en-USTelligent Community 13Fri, 22 May 2020 09:46:16 GMThttps://devzone.nordicsemi.com/thread/251211?ContentTypeID=1Fri, 22 May 2020 09:46:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0d39cac8-7b50-434b-84d7-f4300ff18e9dKarl Ylvisaker<p>Hello,<br /><br />The nRF52832 only has one UART instance. You may not use it for both logging and device interfacing at the same time.<br />As <a href="https://devzone.nordicsemi.com/members/turboj">Turbo J</a> suggests, you should enable the RTT_backend for the logger module, to see your logs in the Segger Embedded Studio debug terminal, or on the standalone J-Link RTT Viewer desktop application.<br />Configuration of the RTT Backend for the logger module is demonstrated in the <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/ble_sdk_app_nus_eval.html">ble peripheral Nordic UART example</a>, please see its sdk_config for further detail.<br /><br />Best regards,<br />Karl</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/251148?ContentTypeID=1Thu, 21 May 2020 18:29:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6d365367-9c81-40fc-badc-c065d7a662b2Turbo J[quote userid="26770" url="~/f/nordic-q-a/61672/nrf52-software-serial"]for log printing.[/quote] <p>Why not just use Segger RTT via SWD port?</p><div style="clear:both;"></div>