8×8led点阵显示数字a到f

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1、摘  要 本文研究了基于AT89S51单片机LED8×8点阵显示屏的设计并运用PROTEUS软件进行原理图绘制，运用KEIL软件进行仿真和调试。主要介绍了LED8×8点显示屏的硬件电路设计、汇编程序设计与调试、PROTEUS软件绘制原理图和实物制作等方面的内容，本显示屏的设计具有体积小、硬件少、电路结构简单及容易实现等优点。能帮助广大电子爱好者了解点阵显示原理，认识单片机的基本结构、工作原理及应用方法，并提高单片机知识技术的运用能力。利用单片机来设计的系统，既能实现系统所需的功能，也可以满足计数的准确、迅速性，并且电路简单，操作简单

2、，通用性强。18目录1.绪论···································································21.1前言·······················································21.2国内外的研究概况············································22. 系统概述······················································33.课程设计目的

3、··················································34.课程设计题目和任务············································35.设计内容······················································45.1系统功能的描述······················································45.2系统硬件设计···························

4、····················45.2.1AT89S51芯片的介绍···································45.2.2单片机系统设18计·······································75.2.3单片机的发展趋势·····································85.2.4时钟电路的设计········································95.2.5复位电路的设计·························

5、···············95.2.6驱动电路的设计········································105.2.78×8LED点阵………………………………………………………105.3计数器初值计算·············································115.4字母A到F点阵显示代码的形成·······························115.5程序流程图················································

6、·125.6源程序·····················································126. 调试及性能分析 ···············································136.1系统调试···················································13 186.1.1软件调试··············································13 6.1.2硬件调试···············

7、·······························14  6.2设计分析 ···················································147．设计总结·····················································14附件调试结果···················································15参考书目·················································

8、·······1618  1.绪论 1.1前言  LED点阵显示屏是集微电子技术、计算机技术、信息处理技术于一体的大型显示屏系统。它以其色彩鲜艳，动态范围广，亮度高，寿命长，工作稳定可靠等优点而成为众多显示媒体以及户外作业显示的理想选