《多功能点阵显示屏的设计设计论文》.doc

学号苏州市职业大学 毕业设计题目 多功能点阵显示屏的设计学生姓名：张专业：学院 (部)：指导教师：指导教师：日期：年月 摘 要： LED电子显示屏是利用发光二极管构成的点阵模块或像素单元组成可变面积的显示屏幕，在信息显示领域得到了广泛的应用，实现显示屏的技术也有很多种。本文介绍了基于单片机AT80C52为控制器的16×64LED点阵显示屏系统的设计。以美国ATMEL公司生产的40脚单片机AT89C52为核心，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行驱动器74LS154和八个列驱动器74HC595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，全屏能显示4个汉字，采用16块8×8点阵LED显示模块来组成一个16×64点阵显示模式。本文介绍了利用Proteus软件进行原理图的绘制，利用汉字转换软件将汉字转换为将要发送给单片机的点阵数据，在Keil 软件当中采用C语言编程，与Proteus 进行联调，并通过仿真软件Proteus最终实现自己设想的效果，总体上系统的设计简单、显示清晰、成本较低。 关键词：单片机 LED点阵显示屏 C语言 Proteus仿真Abstract:LED electronic display module using the dot or pixel unit is constituted with a light emitting diode display of variable area , the information display has been widely applied to achieve the display , there are many techniques . This paper describes the design of the controller based on MCU AT80C52 16 × 64LED dot matrix display system. In the United States produced 40 feet ATMEL AT89C52 microcontroller as the core , introduced to it as the electronic control system of LED dot matrix display dynamic design and development process . 74LS154 74HC595 and eight column drivers to drive through the display driver chip controls a row . The electronic display can display a variety of text or monochrome images, full screen can display four characters , using 16 8 × 8 LED dot matrix display module consisting of a 16 × 64 dot matrix display mode. This paper describes the use of Proteus schematic drawing software , the use of Chinese characters kanji conversion software will convert SCM lattice data to be sent to , the Keil software which uses the C programming language , and Proteus the FBI , and finally by Proteus simulation software realize their vision effect, the overall design of the system is simple , clear display and low cost. Keywords: microcontroller LED dot matrix display C language Proteus simulation目录 1 引言 1 2 系统的概述和方案 2 2.1 设计方案 2 2.1.1 单片机的选择 2 2.1.2 数据传输方案 2 2.1.3 时间矛盾问题的解决 2 2.2 字模点阵工具使用说明 3 2.2.1 功能介绍 3 2.2.2 使用方法解析 4 3 系统硬件电路的设计