基于ARM7嵌入式触摸屏设计  

Apparatus design for embedded touch-screen based on ARM7

作　　者：杨亮[1] 谭南林[1] 苏树强[1] 李响[1] 

机构地区：[1]北京交通大学机械电子控制工程学院,北京100044

出　　处：《国外电子测量技术》2006年第8期17-19,共3页Foreign Electronic Measurement Technology

摘　　要：本文介绍基于ARM7单片机的触摸屏及液晶屏工作原理、硬件结构和软件程序流程。实现用触摸屏控制液晶屏的功能。重点阐述触摸屏、液晶屏和LCP2294各个模块的作用,以及三个模块之间的工作过程。触摸屏采用ADS7843控制器,液晶屏采用SED1335控制器与LPC2294之间的接口电路。另外还简要介绍了LPC2294与打印机的连接以及液晶屏、触摸屏的软件设计和软件流程图。The article described the theory of touch-screen and LCD based on ARM7, including its principium, structure of hardware and software procedures flow. It achieves that touch-screen controis LCD, focused on the principle of touch-screen , LCD and LPC2294. Touch-screen uses ADS7843 and LCD for SED1335, which link with LPC2294. This article also gave a part of software flow chart and the touch-screen and LCD and printer interface circuit diagram.

关 键 词：LPC2294 液晶屏 触摸屏 ADS7843 

分 类 号：TN792[电子电信—电路与系统] TP311.1[自动化与计算机技术—计算机软件与理论]