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介绍了基于51单片机的LCD液晶显示系统的设计,该系统用来完成对简易信号发生器信号输出状态的提示。硬件系统由单片机最小系统和液晶显示系统组成;液晶显示系统由主控模块ST7920和LCD液晶显示模块接口电路组成。介绍了常用的字符显示和汉字显示方法及程序。实现了对信号发生器发出直流、方波、正弦波和三角波不同频率以及幅值的52种组合的实时判断和显示。
The design of LCD liquid crystal display system based on 51 single-chip microcomputer is introduced. The system is used to complete the signal output state of simple signal generator. The hardware system consists of the smallest system of the singlechip and the liquid crystal display system. The liquid crystal display system consists of the main control module ST7920 and the LCD liquid crystal display module interface circuit. Introduced the commonly used character display and Chinese characters display method and procedure. Realizes the real-time judgment and the display to the 52 kinds of combinations that the signal generator sends the direct current, the square wave, the sine wave and the triangle wave different frequency and the magnitude.