# How to config GPIO clock freq?

**URL:** <https://forums.developer.nvidia.com/t/how-to-config-gpio-clock-freq/258767>\
**Category:** Jetson Orin NX\
**Tags:** gpio, board-design\
**Created:** [July 4, 2023, 10:05am UTC](https://forums.developer.nvidia.com/t/how-to-config-gpio-clock-freq/258767 "2023-07-04T10:05:14Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![wangqunpj](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@wangqunpj](https://forums.developer.nvidia.com/u/wangqunpj)\
**Post date:** [July 6, 2023, 3:18am UTC](https://forums.developer.nvidia.com/t/how-to-config-gpio-clock-freq/258767/11 "2023-07-06T03:18:24Z")

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the value we got from TX2 is about 400KHz  
below is we search in forum

 ![image](https://global.discourse-cdn.com/nvidia/original/4X/1/4/f/14f978b8d5d00d212a2065a3bd130ebf7f6669cb.png)

> [@GPIO Bit-Bang Speed Increase](https://forums.developer.nvidia.com/t/gpio-bit-bang-speed-increase/68606/3):
>
> Hey Akmal.ali Yeah i actually referenced your thread for help on memory mapping the pins (so thank you). So i’ve also made sure my pointers are volatile and everything. My actual loop and code (sans the memory mapping part of course) was actually originally written for a very old ti davinci processor and it was performing much faster. That and given your experience with the speed of the TX1 running the same code indicates to me that the code should be fine and its something specific with the…

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