基于单片机的串行通信发射机的设计.doc

毕业设计(论文)
题目: 基于单片机的串行通信发射机的设计
作者届别
院别专业
指导教师职称
完成时间

摘要

随着计算机以及各种电子设备的小型化发展,单片机凭借自身集成度高,体积小,可靠性高,控制功能强,低电压,低功耗,易扩展,性能价格比高的特点,在仪器仪表、医用设备、工业控制、汽车设备、家用电器、计算机网络和通信等领域得到了广泛的应用。
本次设计中使用的是STC89C51单片机,STC89C51单片机是一种八位单片机,简单,容易上手和多功能性受到了人们广泛使用。本次设计的目的是利用单片机实现其作为串行通信发射机的功能,是视作者自身情况而确定的设计类课题。本论文以设计题目的要求为目的,采用STC89C51/STC89C52单片机为控制核心,通过编写相应的程序,利用单片机自带串行通信接口,实现数据的发送,并利用仿真软件和虚拟串口软件,进行串口数据的接收,用于验证发射机是否正常工作。实验测试结果表明本次设计基本满足单片机串行通信发射机的设计要求。本文着重介绍了该系统的硬件设计,软件编程及测试结果分析。

关键词:单片机;串行通信;发射机


Abstract

With the miniaturization puter device  and  other kinds  of  electronic product, microcontroller has been widely applied to the field of instrumentation, medical device, industrial control, automotive equipments, household appliances, work munication and so on, with its unique features of high degree of integration, small size, high reliability, powerful control function, low voltage,  low power consumption, easy extensibility, cost effectiveness and so on.
STC89C51, a kind of 8-bit microcontroller which is widely applied for it is easy to use and its versatility, has been employed in the design. The intention of this design is to realize the function of microcontroller as correspondence blast-off device and the subject is based on the condition of author. This system regards the request of the topic, adopting STC89C51/STC89C52 for controlling core, writing the programs, employing the munication interfaces of single chip puter to transmit data, and receiving data by using software for simulation and virtual serial port to ensure that the transmitter is running correctly. The test result shows that the system meets the requirements of the subject. The paper will detail the design process, including hardware circuit design, software programming and the result analyze.
Key words: single chip puter, munication, transmitter.
目录

摘要 II
Abstract II
第1章绪论 1
第2章方案设计与论证 2
设计思路 2
单片机的选择 2
系统原理图 3
第3章系统设计 4
STC89C52单片机的硬件结构 4
微处理器(CPU) 5