# How to enable the UART4 in IMX8MP soildrun hardknott build

**URL:** <https://community.solid-run.com/t/how-to-enable-the-uart4-in-imx8mp-soildrun-hardknott-build/818>\
**Category:** NXP i.MX8M Plus\
**Tags:** iMX8M-plus\
**Created:** [February 16, 2024, 12:25pm UTC](https://community.solid-run.com/t/how-to-enable-the-uart4-in-imx8mp-soildrun-hardknott-build/818 "2024-02-16T12:25:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![manoj](https://avatars.discourse-cdn.com/v4/letter/m/d9b06d/32.png) [@manoj](https://community.solid-run.com/u/manoj)\
**Post date:** [February 16, 2024, 12:25pm UTC](https://community.solid-run.com/t/how-to-enable-the-uart4-in-imx8mp-soildrun-hardknott-build/818/1 "2024-02-16T12:25:22Z")

</div>

Hi,

I wish to allow external devices to communicate with the UART4 pins.  
Therefore, kindly advise me on how to make UART4 available in the imx8mp-hummingboard-pulse.dts file.  
I’m developing using the Hardknott version as well.

Regards