硬件课程设计实验报告..docx

课程设计指导教师评阅书指导教师评语：成绩：指导教师签字：年月日摘要单片机是指一个集成在一块芯片上的完整计算机系统。尽管它的大部分功能集成在一块小芯片上，但是它具有一个完整计算机所需要的大部分部件：CPU、内存、内部和外部总线系统，目前大部分还会具有外存。同时集成诸如通讯接口、定时器，实时时钟等外围设备。而现在最强大的单片机系统甚至可以将声音、图像、网络、复杂的输入输出系统集成在一块芯片上。本设计是基于芯片为AT90C516RD的单片机和点阵控制芯片74HC573共同来控制8*8的点阵显示屏的过程。介绍了以它为控制系统的LED点阵电子显示屏的动态设计和开发过程。通过该芯片控制一个列驱动74HC573来驱动显示屏显示。该电子显示屏可以显示各种文字或单色图像，选用1块8×8点阵LED来进行显示。显示采用动态显示，使得图形或文字能够实现静止、移入移出等多种显示方式。文中详细介绍了LED点阵显示的硬件设计思路、硬件电路各个部分的功能及原理、相应软件的程序设计，以及使用说明等。单片机控制系统程序采用C语言进行编辑，通过编程控制显示点对应LED阳极和阴极端的电平，就可以有效的控制显示点的亮灭。所显示字符的点阵数据可以自行编写（即直接点阵画图），也可从标准字库中提取。关键词：单片机，AT90C51RD，LED8*8点阵显示屏，点阵控制，锁存器，驱动电路目录摘要 ·············································································2第0章 绪论·······································································41、引言·······································································42、单片机的发展和现状·························································4第1章 LED显示屏的介绍···························································61.1 LED显示屏的发展历程······················································61.2 LED显示屏的应用···························································61.3 LED显示屏的分类···························································71.4 LED显示屏的选择···························································8第2章基于单片机的LED广告牌原理·················································102.1 LED显示屏原理····························································112.2点阵LED扫描法介绍························································112.3 MCS-51的引脚及相关功能···················································122.4 74HC573芯片的逻辑连接表··················································14第3章 系统设计···································································153.1 设计任务及要求····························································153.2 总的电路连接······························································153.3 硬件电路连线······························································153.4 LED电路说明······························································16第4章 软硬件设计·················