本文档讲述ARM9-S3C2440系统时钟和定时器的相关知识-This document describes ARM9-S3C2440 system clock and timer related knowledge

这是基于s3c2440开发板开发的底层timer硬件驱动程序。针对定时器的设计程序。-This is based on the development of the underlying s3c2440 development board timer hardware drivers. The design process for the timer.

这是基于s3c2440开发板开发的底层key硬件驱动程序。针对定时器的设计程序。主要功能是对键盘实现扫描功能。-This is based on the underlying s3c2440 development board development key hardware drivers. The design process for the timer. Main function is to realize the keyboard scan function.