https://devzone.nordicsemi.com/f/nordic-q-a/29225/nrf52-uart-linker-errorHello, I am trying to intergrate the blinky, timer, and UART examples. Blinky and Timer examples seem to work fine. When I added UART, linker error starts to show up. I&#39;m pretty sure I just followed the working UART example in the SDK. Attacheden-USTelligent Community 13Mon, 08 Jan 2018 06:59:24 GMThttps://devzone.nordicsemi.com/thread/116237?ContentTypeID=1Mon, 08 Jan 2018 06:59:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0ef6ed6b-bd51-4271-a9d1-e0a9f74dd45djdelapena<p>Thank you! Now everything is working :D</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/116236?ContentTypeID=1Fri, 05 Jan 2018 10:37:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cc390186-7aed-4ee0-be48-1992f65ed89cJ&#248;rgen Holmefjord<p>Hi,</p> <p>You have not enabled and configured the UART driver, UART library and FIFO library in your sdk_config.h file. I have attached a working config file, please check the diff between this and your original file:</p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/2541.sdk_5F00_config.h">sdk_config.h</a></p> <p>Best regards,</p> <p>Jørgen</p><div style="clear:both;"></div>