点阵液晶显示模块在发动机控制系统中的应用

Application of the dot-matrix liquid crystal display module to the control system of an engine

介绍了MGLS12864点阵式液晶显示模块的原理及特性.给出了与89C51单片机的接口电路,显示汉字和字符所必需的一些子程序流程图,并编写了汉字显示的程序,编程思想可应用于其他型号液晶显示模块.应用该模块对原有的发动机控制系统进行了改进设计,改进后的结果表明,使用液晶显示模块后硬件电路比以前有所简化,人机交互界面更加友好.

The principle and characteristic of the dot-matrix liquid crystal display module MGLS12864 are introduced. The interface circuit with single chip microcomputer 89C51, the flow-chart of kanji and character display treating subroutine and the program of displaying kanji are described. The basic programming can be applied to the other dot-matrix liquid crystal display module. The original control system of the engine is improved by this module. The result indicates that the hardware circuit is brief, and the man-machine interface is friendly.