This guide details the GPIO interface usage on the Allwinner D1 Linux platform, covering module configuration, API interfaces, and debugging methods.
This document serves as a development guide for the Allwinner D1 Linux platform, specifically focusing on the GPIO (General Purpose Input/Output) interface. It is intended for personnel developing device drivers on the Linux sunxi kernel platform. The guide covers the Pinctrl framework, source code structure, and configuration methods. This manual is written in Chinese.
The default sampling clock should be 32k.