论文部分内容阅读
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。
Liquid crystal display (LCD) low operating voltage, low power consumption, with the CMOS circuit matching; and display soft, clear writing, light weight, high reliability, long life, since its inception its rapid development, uses far beyond Other light-emitting devices. In automation instrumentation and automatic control systems, more and more designers use liquid crystal displays to interface with instruments. Although their interface circuits are more complex than traditional LED displays, they are widely used due to their unique advantages. Now introduce a microcontroller LCD display interface design. In the use of precision stepper motor control system, the use of 8031 microcontroller as a controller, combined with the 8255 parallel interface, can achieve the shift display, but also timely display of corner information and detection information. The design of a high degree of automation, controllability, can be used for precision positioning of aids, scanning and other self-monitoring system.