基于LM3S1138的触摸屏系统设计  

Design of Touch Screen System Based on LM3S1138

作　　者：廉小龙[1] 夏路易[1] 胡旭[2] 

机构地区：[1]太原理工大学信息工程学院,山西太原030024 [2]中国飞机强度研究所,陕西西安710065

出　　处：《机械工程与自动化》2012年第4期17-19,共3页Mechanical Engineering & Automation

摘　　要：触摸屏是目前最易于使用的人机交互系统。介绍了触摸屏的分类,并以四线电阻触摸屏为例,介绍了它的工作原理;然后给合ILI9320液晶显示屏,给出了其基于LM3S1138处理器的硬件电路;并且简单介绍了触摸屏的校正原理,以及如何开发基于GRLIB库的图形化应用程序,最后给出了相应的软件流程图。Touch screen is the most easy-to-use man-machine interaction system. This paper introduces the classification of touch screen, as well as the working principle of 4-wire resistive touch screen. Combined with ILI9320 LCD screen, the hardware circuit based on LM3Sl138 processor is given, and the touch screen calibration principle is briefly described. Then it introduces how to develop graphical application programs based on the GRLIB Library. Finally, it gives the corresponding software flow chart.

关 键 词：LM3S1138 触摸屏 ILI9320 设计 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]