基于PXA255的触摸屏控制器ADS7843驱动程序设计  

The Design of Touch Screen Controller ADS7843 Driver on PXA255

作　　者：李外云[1] 胡文静[2] 刘锦高[1] 

机构地区：[1]华东师范大学电子科学技术系,上海200062 [2]湖南理工学院物电系,湖南岳阳414000

出　　处：《电子器件》2005年第1期207-210,共4页Chinese Journal of Electron Devices

基　　金：上海市科委AM基金(D206)资助。

摘　　要：在研发具有操作系统的设备时,高质量的设备驱动程序可以大大提高设备的稳定性与可靠性。本文以触摸屏控制器ADS7843为例,介绍了其内部结构、工作原理,并详细阐述了在L inux操作系统的设备文件系统机制中编写设备驱动程序的过程与方法,同时给出基于PXA255微外理器的触摸屏控制器ADS7843中断方式的驱动程序。The device stability and reliability can be improved based on high quality device driver program during designing devices with operation system.This paper takes touch-screen controller ADS7843 as an example and introduces its internal structure and principle. The process and method of device driver program is elaborated in embedded Linux operation system,which has device file system,then the device driver interrupt program of touch-screen controller ADS7843 based on PXA255 microprocessor is given.

关 键 词：嵌入式LINUX 触摸屏 ADS7843 PXA255微处理器 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]