基于單片機控制動態掃描文字顯示系統的設計

電子機電論文編號:JD142 字數:8008,頁數:25

目 錄
1 引言 .....................................................................1
1.1概述 .....................................................................1
1.2 設計任務 ................................................................1
2系統的硬件構成及功能........................................................2
2.1單片機部分 ...............................................................2
2.1.1 AT89S52單片機 .........................................................2
2.1.2 MCS-5系列單片機最小系統最低配置........................................5
2.2 LED顯示器................................................................6
2.3電阻、電容選用 ...........................................................7
2.3.1電阻的選擇 .............................................................7
2.3.2 電容的選擇.............................................................7
2.4 晶振、復位電路設計和電源部分 ............................................8
2.4.1 電源部分...............................................................8
2.4.2復位電路 ...............................................................8
2.4.3晶振電路 ...............................................................9
2.5單片機控制動態掃描文字顯示功能 ...........................................9
2.6 LED8X8點陣顯示文字圖案編碼 ..............................................10
3軟件系統設計............................................................... 15
3.1軟件流程圖設計 ...........................................................15
3.2 源程序 ..................................................................16
3.3軟件開發工具 .............................................................17
3.3.1 Proteus仿真軟件 .......................................................17
3.3.2偉福仿真軟件............................................................18
3.3.3下載器 .................................................................18
結論 .......................................................................20
致謝....................................................................... 21
參考文獻 ....................................................................22

摘 要
隨著社會的發展和進步，許多人性化的電子產品用再我們的日常生活之中，而單片機被廣泛的運用到我的送接觸的事物上，比如再銀行交易窗口的滾動字幕，還有就是各種彩燈的控制，手機、電腦、機器人等各行各業之中。我的設計式滿足現代社會的需求而設計，滿足了人們的要求。作為用單片機控制的智能產品之一，在單片機設計中開辟出一塊新的領域。本文主要介紹用單片機控制LED點陣模塊顯示器，運用動態掃描的原理和特點，具體研究方法是：以單片機AT89S52為核心，通過LED顯示模塊界面。本文對顯示“上、下、左、右、一、二、三、四”和桃心圖案進行具體分析講解，使用了Proteus仿真軟件和偉福仿真軟件，成功的制作出產品。這項成果給人們帶來了快樂，提高了人們的生活質量。
關鍵字：單片機；動態掃描；文字顯示系統

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