基于ARM嵌入式触摸屏的设计与研究  

Design of the Embedded Touch-screen Based on ARM

作　　者：刘荣林[1] 刘亚坤[1] 武华[1] 程晓东[1] 

机构地区：[1]内蒙古大学电子信息工程学院,呼和浩特010021

出　　处：《内蒙古大学学报（自然科学版）》2009年第6期708-711,共4页Journal of Inner Mongolia University：Natural Science Edition

摘　　要：通过对触摸屏及控制器ADS7843工作原理的分析以及与ARM7微处理器LPC2387硬件连接的研究,设计出两种不同的触摸屏控制方式,并给出必要的软件编程及相关的触摸屏逻辑坐标与LCD物理坐标的转换公式.实验表明,Microwire总线控制方式反应更灵敏、人机交互能力更强.Based on the study and analysis of ADS 7843 touchscreen controller working principle and the hardware connections with LPC 2387,two different kinds of touch-screen control were designed,and a necessary software were given.The formula transformation between logical coordinates of touch-screen and physical coordinates of LCD was also given.The experiment results showed that the bus control of Microwire is more sensitive to response and more capable of human-computer exchange.

关 键 词：触摸屏 微处理器 I/O时序模拟 Microwire总线 

分 类 号：TN673[电子电信—电路与系统] TP311.55[自动化与计算机技术—计算机软件与理论]