用UCB1400芯片实现掌上电脑中触摸屏驱动及其取点优化方法

Using UCB1400 Driving HPC's Touch Screen and Data Optimization

本文介绍触摸屏原理、特点和应用领域 ,讲述了 UCB1 40 0芯片功能、工作模式、ADC转换模式以及对触摸屏驱动方法。主要着重讨论 UCB1 40 0芯片在嵌入式 Linux掌上电脑中对 Philips和 Sony触摸屏的驱动实现。

The article introduces the touch screen's theory, characters and application cases. The functions, working models and two ADC models of the UCB1400 chip are described. The solution for driving Philips and Sony's touch screens in Linux-based hand-hold terminals is given with methods of data optimization and generating stimulant mouse events.