一种自适应电阻式触摸屏控制器的设计  

Design of Self-adaptive Resistive Touch Panel Controller

作　　者：邓中亮[1] 杨子明[1] 陈杰[1] 

机构地区：[1]北京邮电大学电子工程学院,北京100876

出　　处：《现代电子技术》2011年第2期123-126,129,共5页Modern Electronics Technique

摘　　要：提出一种电阻式触摸屏控制器的设计方案。针对电阻式触摸屏x,y向总电阻存在型号差异和个体差异的特点,为了避免传统测量方法中人工确定触摸屏阻值参数的问题,提出一种x,y向总电阻的测量方法。该方法通过软硬件的配合,自动测量触摸屏x,y向总电阻,实现针对不同型号或个体触摸屏的自适应压力电阻计算。该方法适用于已封装好的电子产品,可避免产品组装前对触摸屏的测试工作,有效地节约产品的开发成本和生产时间。The implementation and working principle of resistive touch panel controller are proposed. A self-adaptive algo- rithm based on resistive touch panel is introduced to obtain the value of total resistance on x-direction and y-direction, and im- plemented with a mix of software and hardware. The designed touch panel controller is convenient to operate and calculate, and can avoid measuring the resistive touch panel parameters individually. This design can reduce the cost and period of pro duction, and is widely applied to embedded system platform.

关 键 词：电阻式触摸屏 自适应 电阻测量 压力电阻 

分 类 号：TN919-34[电子电信—通信与信息系统] TP334.2[电子电信—信息与通信工程]