蔡婷 基于单片机的LED汉字显示屏4.doc

JIU JIANG UNIVERSITY
毕业论文(设计)
题目基于单片机的LED显示屏设计
英文题目 The design based on monolithic integrated circuit LED display monitor
院系电子工程学院
专业电子信息工程
姓名吕品
年级二零零三级
指导教师张孟忠瓦俊
二零零七年五月
基于单片机的LED显示屏设计
摘要
随着微电子技术、自动化技术、计算机技术的迅速发展,生产工艺的更新及新材料的应用,LED显示屏以其色彩鲜艳,动态范围广,亮度高,寿命长,工作性能稳定而日渐成为显示媒体中的佼佼者,广泛应用于广告、证券、信息传播、新闻发布等方面,是目前国际上极为先进的显示媒体。LED显示屏是一种新型的图文信息传播媒体,用于显示文字、图形、图像、动画、行情、视频、录像信号等各种信息的LED器件阵列组成的显示屏幕。它主要由控制系统和显示屏两部分组成。显示屏又主要由若干个LED显示驱动模块拼接而成。因此,显示驱动模块的设计与制造,对整个LED大屏显示起着至关重要的影响和作用。
[关键词] 单片机, LED显示屏, 滚动
Abstract
Along with micro electron technology, automated technology, computer technology rapid development, production craft renewal and new material application, LED display monitor by its color bright, dynamite range broad, brightness high, life long, the operating performance is stable and es the outstanding person in the demonstration media day after day, is widely applied to advertisement, negotiable securities, information dissemination, news issue, is on the present international extremely advanced demonstration media. The LED display monitor is one kind of new chart article information dissemination medias position screen that is consist of ponent array ,used to demonstrating each kind of informations,such as the writing, the graph, the picture, the animation, the quotation, the video frequency, the video recording signal and so on. It is posed by the control system and the display monitor two parts. The display monitor mainly es by certain LED demonstration actuation module splicing. Therefore, demonstrated the actuation module the design and the manufacture, demonstrates the very important influence and the
function to the entire LED big screen.
[Keyword] Monolithic integrated circuit, LED display monitor, Rolls
目录
目录 1
前言 2
第一章总体设计 3
系统设计方案论证 3
工作原理及其实现功能 4
本章小结 4
第二章硬件设计 5
硬件概述 5
硬件接口电路图 8
本章小结 8
第三章软件设计 9
软件设计分析 9
程序设计及流程图 9
汉字显示的基本原理 11
系统部分程序设计 12
本章小结 12
附录1 控制源程序 13
附录2 系统电路图 18
结束语 19
参