［精品］基于单片机的LED滚动汉字显示器设计.doc

目 录 摘要 Ⅰ Abstract Ⅱ 引 言 1 第1章 LED显示屏的介绍 2 1.1 LED显示屏的发展背景及国内外研究现状 2 1.2 LED显示屏的分类 3 1.3 LED显示屏的显示方案 3 1.4 LED显示屏的作用及市场前景 4 第2章 系统总体分析 6 2.1 设计目标及采取的方案 6 2.1.1 设计目标 6 2.1.2 设计采取的方案 6 2.3 工作原理 7 2.4 总体设计 7 第3章 系统硬件设计 8 3.1 AT89C51芯片的简要介绍 8 3.2 时钟电路 9 3.3 复位电路 10 3.4 驱动电路设计 10 3.4.1 行驱动电路设计 10 3.4.2 列驱动电路设计 13 3.5 电源模块设计 16 3.6 点阵式LED汉字显示屏设计 16 3.6.1 点阵式LED显示屏设计 16 3.6.2 LED电子显示屏显示字符原理 17 3.6.3 汉字显示原理 18 3.7 系统整体电路 20 第4章 系统软件设计 21 4.1 主程序设计 21 4.2 子程序设计 21 第5章 系统制作与调试 25 5.1 Proteus软件简要介绍 25 5.2 仿真过程 25 5.3 硬件制作与调试 26 5.3.1 硬件电路板的制作 26 5.3.2 系统硬件调试 26 5.4 系统软件调试 27 结 论 29 致 谢 30 参考文献 31 附录A源程序 32 附录B实物图 36 基于单片机的LED滚动汉字显示器设计Light Emitting Diode）行业已成为一个快速发展的新兴产业，市场空间巨大，前景广阔。本文介绍了基单片机汉字滚动显示屏的设计本显示屏的设计具有体积小、硬件少、电路结构简单及容易实现等优点关键词：单片LED 点阵汉字显示 esign of LED Rolling Characters Display Based on SCM Abstract: This design in view of the present LED display monitor, in national dividend’s many domains obtain in the widespread quotation situation, has carried on this paper design after the investigation. This article introduces the design of Chinese scroll screen with 16 x 16 lattice LED based on monolithic AT89C51. And it emphatically introduced the LED lattice demonstration hardware design mentality, hardware circuit each part of functions and the principle, the corresponding software’s programming emphatically, as well as detailed operating instructions and work flow. This design divides into six parts, the primary coverage is the system macro analysis, the system hardware design , the system software designs three parts. The system macro analysis is this article foundation, the system hardware design is this article key, is this design hard core, this part first simply describes the system hardware principle of work, and attaches by the system hardware design diagram, elaborated various hardware interface technology which and each interface module function and the work process this graduation project applies. The system software design is this article sublimation.