摘 要本文介绍了一款以 MSC-51 单片机为控制器的 LED 点阵显示屏系统的设计。该系统可实现中英文字符的显示和动态特效显示。并且可以通过级连的方式来扩大显示屏幕的尺寸以达到增加显示内容的目的。系统采纳 PC 机作为上位机，上位机向单片机发送控制命令和上位机所存储的显示代码，MSC-51 单片机接收并处理PC 机的控制命令以及显示代码，由显示驱动模块驱动一个 16×64 分辨率的 LED 点阵显示屏的扫描显示。PC 机与单片机之间的通信采纳 RS—232C 通信标准来实现。所选用的 MSC-51 单片机具有价格低廉程序写入方便的特点使得整个系统方便维护和检修。除此之外，该系统只占用了单片机少量的 I /O 口和内存，为系统留下了功能扩展的空间。关键字：MSC-51 单片机；LED 点阵显示；软件设计；串行通信 AbstractThis paper introduces a design of the LED lattice display system base on MSC-51. The system can display in both Chinese and English characters of the show and from top to bottom and move around the magic show. And can be cascaded to expand the screen size to achieve increased content purposes. The PC sends control commands and displays code to microcontroller, MSC-51 receives control commands from PC and shows the code, Driver module drives a 16×64-resolution LED lattice LED’s panel display scan showed. Communication between PC and the microcontroller using RS-232C communications standards. the characteristics that MSC-51 microcontroller is cheap and could be coded conveniently makes the whole system Convenient to Maintenance and Repair. In addition, the system will take up only a small amount of the MCU I/O and memory,so that the system has functional space for expansion.Key words: MSC-51; lattice LED’s panel display; serial communicatio第 1 章 前 言1.1 课题背景1.1.1 选题背景LED 显示屏是八十年代后期在全球迅速进展起来的新型信息显示媒体，显示屏由几万到几十万个半导体发光二极管像素点均匀排列组成。利用不同的材料可以制造不同色彩的 LED 像素点。目...
