文件名称:touch_interfare
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触摸屏接口对包括个人数字助理 (PDA) 应用等在内的众多信息设备都很有用,而且还可在仪表与控制应用中作为通用指示设备。如何将通过触摸屏获得的信息传递给微处理器呢?这项工作可能颇具挑战性。本文将介绍电阻式触摸屏的工作原理,并指出如何最有效地将模拟输入转换为可用的数字数据。我们将讨论建立时间、噪声过滤以及速度权衡等问题。-Touch-screen interface, including personal digital assistants (PDA) applications, including large equipment is very useful information, but also in the application of instrumentation and control equipment as a universal instruction. How to get through the touch-screen information to the microprocessor so? This work may be challenging. This article will introduce Resistive Touch Screen working principle, and pointed out how best to analog input is converted to digital data available. We will discuss the set up time, noise filtering, and speed trade-offs and so on.
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touch_interfare.doc
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