摘要
针对当前液晶触摸屏系统屏幕尺寸大、操作简便、应用广泛的主流发展方向.提出采用ARM9处理器作为核心器件,ADS7846为触摸屏控制器和6.5寸背光源四线电阻式TFT-LCD面板构成触摸屏系统的方案.阐明了系统的总体方案,硬件组成及各部件的工作原理分析,器件的选型.阐述了ARM-Linux系统的软件应用模型及部分控制程序的实现.产品经过调试后能良好的显示,通过加载QT编写的应用程序可以较好的通过触摸屏来进行操作,达到了预期的设计要求.具有较高的实际应用价值.
In view of the development direction of liquid crystal touch screen system with large screen size, simple operation and wide application,this paper adopts ARM9 processor as the core device, ADS7846 as touch screen controller and 6.5 inch backlight four wire resistive TFT-LCD panel as touch screen system scheme. The overall scheme of the system, the working principle of hardware components and parts and the selection of devices are given. Describes the implementation of application model of ARM-Linux system and control program are described. The product can display well after the debugging. Through the application of loading QT preparation, it is easy to aperate the touchsureen, which meets the requirement of the design and has high practical application value.
出处
《湖南工程学院学报（自然科学版）》
2015年第1期37-40,共4页
Journal of Hunan Institute of Engineering(Natural Science Edition)
基金
湖南省教育厅科研资助项目(12C1097)
