基于 S3 C2410的触摸屏手写应用程序设计

摘要

触摸屏作为一种重要的电子输入设备，在各个领域都备受青睐。触摸屏以其简单、自然的人机交互方式，已广泛应用于工业过程控制、公共信息咨询、金融证券交易市场、家用电器等众多领域。基于S3 C2410的电阻式触摸屏应用，介绍了触摸屏的原理及结构以及在嵌入式系统中的应用、嵌入式文件系统的配置、LCD 和触摸屏的配置；采用了触摸屏3点校准方法，并利用 Linux 中的 Framebuffer设备实现了在触摸屏上追随手指显示轨迹的具体算法。%As a new electronic input device ,the touch screen technology has been gained popularity in various fields.Touch screen with its simple,natural human-computer interaction,has been widely used in industrial process control,public information consultation,finance and securities trading market,household appliances and many other fields.This paper describes the application of touchscreen based on S3C2410,introduces the principles and structure of touchscreen ,its application in the embedded system and configuration in the em-bedded file system configuration ,LCD and touch screen .Three -point calibration method is expounded and the algorithm is implemented by using framebuffer to realize touchscreen's finger follow based on S3C2410.