基于ARM9的嵌入式电子触摸屏设计  

Design of Embedded Electronic Touch Screen Based on ARM9

作　　者：汪鹏程 WANG Peng-cheng(Guilin University Of Technology At Nanning,Nanning 530000,China)

机构地区：[1]桂林理工大学南宁分校,广西南宁530000

出　　处：《装备制造技术》2018年第4期123-125,共3页Equipment Manufacturing Technology

基　　金：2017年度校园技术应用项目<智能校园照明管理系统>(XYJS2017006)

摘　　要：以ARM9内核的嵌入式微处理器S3C2440A为系统核心,采用广州友善之臂Friendly ARM的Mini2440开发板,选择广州友善之臂的LCD2VGA模块作为图像数据处理转换核心,设计一款小体积、低功耗的触摸屏控制系统。系统以Linux2.6.13为实时操控系统,利用Q t4.5构建桌面运行环境,采用C++编写应用的查询程序,实现了四线电阻屏与液晶显示器组成的触摸屏的控制功能。通过系统设备的实际使用,验证了系统设计的正确性和合理性,电子触摸屏的触控准确度高,响应速度快,系统稳定性好。Taking the embedded microprocessor S3 C2440 A of the ARM9 kernel as the core of the system,using the Mini2440 development board of ARM9 of the Guangzhou friendly arm,the LCD2 VGA module of Guangzhou friendly arm is selected as the core of the image data processing and conversion,and a small volume and low power consumption touch screen control system is designed. The system uses Linux2.6.13 as the real-time control system,uses the Qt4.5 to build the desktop running environment,uses C＋＋ to write the application query program,and realizes the control function of the touch screen composed of four line resistance screen and liquid crystal display. Through the practical use of system equipment,the correctness and rationality of the system design is verified. The electronic touchscreen has high touch accuracy,fast response speed and good system stability.

关 键 词：ARM9 嵌入式系统 电子触摸屏 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]