摘要单片机技术在今天已经受到了许多领域的大力追捧，并且已经逐步走进普通人的生活。因此为了迎合市场的需求许多集成电路的生产厂家便前赴后继的推出了多种类型的单片机。其中以优越的性能、成熟的技术及高性价比和高可靠性牢牢占据市场头把交椅的当属MCS-51系列单片机了。随着技术的发展，能用于MCS-51系列单片机开发的产品飞速增加着，而对应的各种软件和开发系统也都在完善着。因此我们可以非常便利地利用现有的资源，开发出不同的应用系统来完成不同的目标或任务。学生是未来的社会精英，时代发展的中流砥柱，技术的发展迫切的需要他们去学习、钻研单片机领域的知识。39597
本文设计了一款单片机实验开发板，并详细的向读者介绍了开发板的研究背景，叙述了这款开发板的各个模块的功能和原理以及它的PCB板的制作过程。本开发板的设计目的便是帮助广大学生学习单片机的基础知识，而且该系统能实现对专业基础课，专业课知识的学习，还能帮助完成课程设计以及毕业设计中的实验的完成。本实验板是参照单片机教材所叙述的实验来设计的，它可以帮助学生完成简单的测试实验。
毕业论文关键词： STC89C52  单片机  实验系统  硬件
Abstract SCM technology today have been vigorously pursued in all fields, and it has gradually entered the lives of ordinary people, many IC manufacturers would have introduced a variety of types of microcontroller s. Among them, superior performance, proven technology and high cost performance and high reliability market firmly occupy the top spot comes as the MCS-51 family of microcontrollers. With the development of technology, it can be used for MCS-51 series microcontroller products developed rapidly increase with, and the corresponding variety of software and development systems are perfected. So we can be very convenient to use existing resources, develop different applications to accomplish different goals or tasks.
This paper presents a single-chip experimental development board, and a detailed description of the background to the reader development board, describes the functions and principles of each module of this development board and the production process of its PCB board. The development board is designed to help the students learn the basics of the microcontroller, and the system can realize the basic courses, specialized courses of study of knowledge, but also help to complete the completion of the course design and graduation design experiments. The experiment board is described with reference to the microcontroller textbook experiments to design, it can help students to complete a simple test experiments.
Key words：STC89C52  SCM   experimental systems   hardware
目   录
摘  要    I
Abstract    II
1  概述    1
1.1  研究意义及行业背景    1
1.2  国内外研究现状    1
2  实验系统硬件设计    4
2.1  实验系统的单片机选型以及硬件总体逻辑结构    4
2.1.1  选型原则    4
2.1.2  硬件总体逻辑结构    4
2.2  存储技术和ISP模块    5
2.3  单片机最小系统    6
2.4  键盘及显示模块    7
2.4.1  显示电路    7
2.4.2  键盘模块    7
2.5  模数转换模块    8
2.6  数模转换电路    8
2.7  时钟模块    9
2.8  LCD液晶显示模块    9
2.9  HX1838红外模块    10 STC89C52单片机实验开发板设计+电路图:http://www.youerw.com/zidonghua/lunwen_39950.html