1、 I 摘摘 要要 本系统是从实际应用角度出发，针对当前市场上流行的 LED 产品的应用领域而设计 制作的多功能电子显示屏，可用于商场导购促销显示、新闻与广告显示、车站机场班次 时间资讯显示等。 LED 电子显示屏根据题目设计要求，硬件部分主要包括 STC89C52 单片机系统、16 块 8*8LED 点阵显示模块构成 16*64 点阵、显示驱动电路、键盘输入控制器等部分，软 件编程主要用的是 C 语言。本系统不仅能够实现数字、字母、汉字等预存信息的切换显 示，同时还可以实现信息的定时循环、上下左右滚屏、LED 显示亮度连续可调，另外， 本系统可以和 PC 机通讯，通过 PC 机串口对显示信息进
2、行更新。通过对此 LED 广告屏的 设计，满足了设计要求，实现了设计的目的。 关键词：关键词：LED 电子显示屏 ，16*64 点阵 ，STC89C52 单片机 II Abstract This system sets out from the actual application angle and aim at current spread on the market of the multi-function electronics monitor of the applied realm but design creation of LED product, can used for
3、market to lead to buy promote sales to show, news and advertisement show, the station airports number times information show etc LED electronics the monitor design a request according to the topic. the hardware part mainly includes STC89 C52 list slice machine system and 16 pieces of ses show that t
4、he mold piece constitutes 16*64point, show to drive parts like the electric circuit, keyboard importation controller etc .softwares weaving a distance what to use mainly is a C language .This system can not only carry out number, letter of alphabet, and Chinese characters.etc. to prepare to save a c
5、utting over of information to suggest, but also can carry out an information in fixed time circularly, the top and bottom Be or so to roll to hold, LED show that the bright degree is in a row adjustable, moreover, this system can pass with PC machine communication one PC machine string to show that
6、the information carries on renewal .Pass the design that holds to this LED advertisement, satisfied a design request, carried out the purpose of design. Key words：LED electronics monitor, 64 of 16point, STC89 C52 list slice machine 青岛理工大学琴岛学院专科毕业设计说明书（论文） 目目 录录 摘摘 要要 I AbstractAbstract II 1 1 绪绪 论论 1 1.11.1 课题背景课题背景 1 1.21.2 LEDLED 广告屏广告屏 1 2 2 系统方案设计系统方案设计 3 2.12.1 LEDLED 广告屏功能的实现广告屏功能的实现 3 2.22.2 单片机的选型单片机的选型 5 3 3 硬件设计硬件设计 6 3.13.1 系统结构系统结构 . 6 3.23.2 电路的具体设计电路的具体设计 7 4 4 系统的软件
