# How to add new ch9434.c(SPI to UART) on Orin nx

**URL:** <https://forums.developer.nvidia.com/t/how-to-add-new-ch9434-c-spi-to-uart-on-orin-nx/279543>\
**Category:** Jetson Orin NX\
**Tags:** spi, device-tree\
**Created:** [January 20, 2024, 8:28am UTC](https://forums.developer.nvidia.com/t/how-to-add-new-ch9434-c-spi-to-uart-on-orin-nx/279543 "2024-01-20T08:28:22Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![sjz\_SH](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@sjz\_SH](https://forums.developer.nvidia.com/u/sjz_SH)\
**Post date:** [February 1, 2024, 2:22am UTC](https://forums.developer.nvidia.com/t/how-to-add-new-ch9434-c-spi-to-uart-on-orin-nx/279543/8 "2024-02-01T02:22:54Z")

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Hi,Kevin  
When I loaded CH934.KO, the error message in the figure appeared through dmesg, I used GPIO06(PCC.03) as the interrupt, is the error message because of GPIO06(PCC.03)? Thank you

 ![pic1](https://global.discourse-cdn.com/nvidia/original/4X/4/1/6/416a64821b45adf08c38c14a6d8b3e98e285a2a5.png)  
 ![pic2](https://global.discourse-cdn.com/nvidia/original/4X/a/8/e/a8e01b8ac76d9b025bdec9b4d4b4fb308a014605.png)

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