基于单片机led点阵图文显示控制设计.docx

毕 业 设 计 课题名称 基于单片机的LED点阵图文显示控制设计 院/专 业 机械工程学院/ 机电一体化 班 级 机电1311班 学 号 学生姓名 指导教师： 2016年5月24日 摘要 LED的点阵图文显示目前被广泛应用于各个方面，尤其当LED点阵图文显示与功能强大且价格低廉的单片机，其化学效应异常剧烈，单片机不仅丰富了LED点阵图文显示的应用范围，也增强了其实用性。 本次毕业设计就是针对STC89C52单片机作为驱动LED的图文显示控制的芯片，主要阐述了单片机的硬件结构，工作原理及方式，LED的工作方式及原理以及相关软件的运行。研究了单片机对LED点阵显示屏的控制技术。 在以上理论为基础的前提下，我设计了搭建基于单片机的LED图文点阵图文显示控制的电路，并用相关的元器件，在万用电路板上以焊接的形式，实现了单片机对LED点阵显示屏的图文控制，并最终达到预期设计要求。 关键词：LED；单片机； 点阵控制  ABSTRACT LED lattice of graphic display has been widely applied in various aspects, especially when the LED dot-matrix graphic display and powerful and low cost of single chip microcomputer, the chemical effect unusually intense, single-chip microcomputer not only enriched the application range of the LED lattice graphic display, also enhanced its usefulness. This graduation design is aimed at the STC89C52 single-chip microcomputer as the drive LED graphic display control chip, mainly expounds the hardware structure of single chip microcomputer, working principle and mode, working way and principle of the LED and the operation of relevant software.Studies the technique of single-chip microcomputer control of the LED dot matrix display screen. On the premise of theory on the basis of above, I designed the building graphic dot-matrix LED graphic display based on MCU control circuit, and related components in universal circuit boards in the form of welding, implements the single-chip microcomputer control of LED dot matrix display screen shots, and ultimately achieve the design requirements. Key Words: LED；Singlechip；Dot matrix control 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc452041396 第一章 绪论 PAGEREF _Toc452041396 \h 1 HYPERLINK \l _Toc452041397 1.1 选题背景及研究意义 PAGEREF _Toc452041397 \h 1 HYPERLINK \l _Toc452041398 1.2 单片机与LED图文显示的应用现状 PAGEREF _Toc452041398 \h 1 HYPERLINK \l _Toc452041399 1.3 论文工作内容 PAGEREF _Toc452041399 \h 2 HYPERLINK \l _Toc452041400 第二章 设计原理与总体方案 PAGEREF _Toc452041400 \h 3 HYPERLINK \l _Toc452041401 2.1 设计原理 PAGEREF _To