基于S3C44B0的触摸屏技术的研究与设计

Research and design of touch screen panel technology based on S3C44B0

触摸屏(Touch Screen Panel,TSP)做为一种最新的电脑输入输出设备,因具有简单、方便的特点而逐步被广泛使用。在对TSP技术介绍的基础上,详细叙述了基于S3C44B0的四线电阻式TSP控制电路和驱动程序设计过程。这种触摸屏使用逐次逼近式的A/D转换器来获取触摸点的坐标,并通过平均值法修正误差而得到最后结果。

Touch Screen Panel（TSP） is easy , convenient and natural. TSP has Become popular in public as a kind of new computer I/O equipment. Basing on introduction to TSP technology, the article introduces particularly four line resistance TSP control circuit based on ARM chip S3C44B0 and correlative driver . The TSP can get a location of screen through successive approximation A/D converter, and finally get the result with the method of average.