| 一种液晶显示系统的单片机接口设计 |
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| 引用本文： | 郭燕,李焕信.一种液晶显示系统的单片机接口设计[J].时间频率学报,1997(1). |
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| 作者姓名： | 郭燕 李焕信 |
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| 作者单位： | 中国科学院陕西天文台!陕西省临潼，710600 |
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| 摘 要： | 液晶显示器（LCD）工作电压低、功耗小、能与CMOS电路匹配；且显示柔和、字迹清晰、重量轻、可靠性高、寿命长，自问世以来其发展速度之快，用途之广远远超过了其它发光器件。在自动化仪表及自动控制系统中，越来越多的设计者采用液晶显示与仪器对接，尽管其接口电路较传统的LED显示器复杂，由于其独特的优点，正得到广泛地应用。现介绍一种单片机LCD显示器接口的设计。在使用步进电机进行精密自动控制的系统中，利用8031单片机作为控制器，加之使用8255并行接口，可实现移位显示，也可适时显示转角信息和检测信息。该设计自动化程度高、可控性强，可用于天文仪器的精密定位、扫描以及其它自控监示系统。
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| 关 键 词： | 单片机 显示器接口 自动控制和监测 |
A Design of Interface for Single Chip Processor to LCD |
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| GUO Yan, LI HuanXin.A Design of Interface for Single Chip Processor to LCD[J].Journal of Time and Frequency,1997(1). |
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| Authors: | GUO Yan LI HuanXin |
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| Abstract: | The new luminous device LCD (Liquid Crystal Display)has been widely used in automatic control system eventhough the circuit of the interface between LCD and singlechip processor is more comp1icated than that for LCD. Thispaper presents the design of a LCD interface which is adapted to fine automatic control systems with stepper motors.With an 8031 chip as a control unit together with an 8255chip, the shift display is realized and the control informationof rotation angle is shown automatically. The system discussed here can be applied to an astronomical telescope toautomatically track stars and make the data acquisitioneasy. |
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| Keywords: | Single Chip LCD Automatic Control and Monitoring |
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