嵌入式系统中的触摸屏及其控制

Touch-screen and its Control in the Embedded System

触摸屏逐渐取代键盘成为嵌入式系统常选用的人机交互工具。并以四线电阻式触摸屏和触摸屏控制器ADS7843,从系统的硬件入手,分析整个系统的硬软件原理及其实现方法,结合硬件的实现原理,阐述在W in-dow s CE系统下,触摸屏驱动的结构以及软件的实现方法。

The touch-screen gradually replaces the keyboard and becomes the man-machine interactive tools of the embedded system. And taking four resistances touch-screen and its controller ADS7843 as an example,this paper analyzes the theory of hardware and software of the system and the implementation approach. On the basis of hardware implementation principle, this paper also expounds the structure of touch-driven screen and software implementation in Windows CE system.