基于单片机控制动态扫描文字显示系统的设计

电子机电论文编号:JD142 字数:8008,页数:25

目 录
1 引言 .....................................................................1
1.1概述 .....................................................................1
1.2 设计任务 ................................................................1
2系统的硬件构成及功能........................................................2
2.1单片机部分 ...............................................................2
2.1.1 AT89S52单片机 .........................................................2
2.1.2 MCS-5系列单片机最小系统最低配置........................................5
2.2 LED显示器................................................................6
2.3电阻、电容选用 ...........................................................7
2.3.1电阻的选择 .............................................................7
2.3.2 电容的选择.............................................................7
2.4 晶振、复位电路设计和电源部分 ............................................8
2.4.1 电源部分...............................................................8
2.4.2复位电路 ...............................................................8
2.4.3晶振电路 ...............................................................9
2.5单片机控制动态扫描文字显示功能 ...........................................9
2.6 LED8X8点阵显示文字图案编码 ..............................................10
3软件系统设计............................................................... 15
3.1软件流程图设计 ...........................................................15
3.2 源程序 ..................................................................16
3.3软件开发工具 .............................................................17
3.3.1 Proteus仿真软件 .......................................................17
3.3.2伟福仿真软件............................................................18
3.3.3下载器 .................................................................18
结论 .......................................................................20
致谢....................................................................... 21
参考文献 ....................................................................22

摘 要
随着社会的发展和进步，许多人性化的电子产品用再我们的日常生活之中，而单片机被广泛的运用到我的送接触的事物上，比如再银行交易窗口的滚动字幕，还有就是各种彩灯的控制，手机、电脑、机器人等各行各业之中。我的设计式满足现代社会的需求而设计，满足了人们的要求。作为用单片机控制的智能产品之一，在单片机设计中开辟出一块新的领域。本文主要介绍用单片机控制LED点阵模块显示器，运用动态扫描的原理和特点，具体研究方法是：以单片机AT89S52为核心，通过LED显示模块界面。本文对显示“上、下、左、右、一、二、三、四”和桃心图案进行具体分析讲解，使用了Proteus仿真软件和伟福仿真软件，成功的制作出产品。这项成果给人们带来了快乐，提高了人们的生活质量。
关键字：单片机；动态扫描；文字显示系统

Abstract
With society's development and progress, many user-friendly electronic products with again during ours daily life, but the monolithic integrated circuit is delivered the contact by widespread utilization me on the thing, for instance again banking transaction window roll titles, but also has is each kind of colored lantern's control, various trades and occupations and so on handset, computer, robot. My design type satisfied the modern society the demand to design, has satisfied people's request. As uses one which of intelligent products the monolithic integrated circuit controls, opens a new domain in the monolithic integrated circuit design. This article main introduction controls the LED lattice module monitor with the monolithic integrated circuit, the utilization dynamic scanning principle and the characteristic, the concrete research technique is: Take monolithic integrated circuit AT89S52 as the core, through LED display module contact surface. This article to demonstrated that “the top, bottom, left and right, one, two, three, four” and the peach heart design carried on the concrete study to explain, has used the Proteus simulation software and the great luck simulation software, the success manufacture product. This achievement has brought joyfully to the people, improved people's quality of life.
 Key words: SCM; Dynamic Scanning; Word Displaying System