分类号 TP273 单位代码 10642
密 级 公 开 学 号201108051018
学士学位论文
论文题目：基于单片机的LED点阵显示屏设计
论 文 作 者：付文星 指 导 教 师：杨宝亮（讲师） 专 业：电子信息科学与技术 提交论文日期：2015年5月11日 论文答辩日期：2015年5月17日 学位授予单位：重庆文理学院
中 国 ? 重 庆 2015年5月
Graduation Thesis of Chongqing University of Arts and Sciences
Design of LED Matrix Screen based on MCU
Candidate: Fu Wen Xing
Supervisor: Yang Bao Liang（lecturer）
Major: Electronic information Science Technology
College of Electron and Electrical Engineering Chongqing University of Arts and Sciences
05,2015
and 中文摘要
摘 要
此课题设计的是基于单片机的LED显示屏，以STC12C5A60S2单片机为整个系统的控制核心，由时钟芯片DS1302、温度传感器DS18B20和点阵显示屏驱动器构成整个系统。点阵显示屏采用16块8×8的LED点阵焊接成16×64点阵显示屏，能够实现显示时间、温度、简单的图像等。显示方式采用动态显示，文字、数字能够实现静止、滚动显示方式。单片机STC12C5A60S2控制程序采用C语言进行编程，通过程序控制各显示单元对应LED点阵屏的阳极和阴极端的高低电平，准确的控制没一个LED灯的亮灭。所需要显示文字、数字、符号的点阵数据使用字模提取软件获取。基于单片机的LED点阵屏便于信息更改、亮度高、能耗低、显示内容丰富，在广告宣传和实验教学中有着广泛的应用。
关键词：单片机；LED点阵屏；STC12C5A60S2；DS1302
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英文摘要
Abstract
Design of the subject is the LED display based on single chip microcomputer, STC12C5A60S2 microcontroller as the control core of the whole system, by the clock chip DS1302, temperature sensor DS18B20 and dot matrix display screen drive the whole system.Dot matrix display screen with 16 pieces of 8 x 8 of 16 * 64 dot matrix display screen, LED lattice welding into can achieve display time, temperature, simple image and so on.Display dynamic display, text, Numbers, can achieve static, scrolling display mode.SCM STC12C5A60S2 control program using C language programming, through the program control and display unit corresponding to the LED lattice screen anode and the cathode side of high and low level, the accurate control did not destroy the light of an LED lamp.The need to display text, Numbers, symbols of lattice software for extracting data using a font.Based on single chip microcomputer of LED dot matrix screen to facilitate information changes, high brightness, low energy consumption, shows rich content, in advertising and has been widely used in the experiment teaching.
Key words: MCU; LED matrix screen; STC12C5A60S2；DS1302
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