论文标题:基于增强型51系列单片机的TCP/IP协议栈的实现
Realization of the TCP/IP Protocol Stack Based on MCS-51 MCU
论文作者 姜玲玲
论文导师 张淑芳,论文学位 硕士,论文专业 通信与信息系统
论文单位 大连海事大学,点击次数 187,论文页数 63页File Size8129k
2005-03-01论文网 http://www.lw23.com/lunwen_398825557/ TCP/IP协议;单片机;uPSD3200; Sniffer
TCP/IP; MCU; uPSD3200; Sniffer
本文研究了嵌入式TCP/IP协议单片机在网络通信中的数据传输技术,开发了利用增强型单片机实现TCP/IP协议的应用系统,借助无线通信模块实现了单片机系统通过无线网络在Internet上的数据传输。用户终端以单片机系统板为媒介,通过网络与远程数据中心服务器实现数据通信。 本系统所使用的单片机是一款将可编程系统器件PSD和8032微控制器集成一体的功能强大的新型高速单片机——ST uPSD3200系列单片机,这款单片机既满足了系统对资源的要求又简化了系统的外围电路。为了系统开发的便利采用了Insight ME-3200仿真器及高性能集成开发环境MedWin。 利用单片机实现TCP/IP协议栈的技术难点在于:如何利用单片机自身有限的资源实现复杂的协议和状态机转换,同时保证系统的实时性,使之可以在Internet上传输IP数据包。由于TCP/IP协议比较复杂,受单片机内存和速度限制,如何将TCP/IP协议简化是本文所要研究和解决的重点问题。 为增强程序的可移植性,本文中所有代码都是由C语言编写的,并采用分层的结构,从底到上分别为:IP协议层、TCP协议层与应用层。上层函数的实现需要应用到底层函数,而底层函数的任务就是为上层函数提供服务,最终完成应用层任务——传送数据。 本课题采用包嗅探器Sniffer对通信数据进行跟踪分析,并验证协议栈程序的正确性。 本研究成果已经应用于交通部科技项目水上交通安全信息系统中。
This thesis researches a data transfer technology in network communication based on Embedded TCP/IP MCU, and develops an application system based on the MCU. The system integrates TCP/IP Protocol into Micro Chips and realizes data transfer between wireless model and Internet via wireless telecommunication modules. The MCU Board is one of basic components of User Terminal and the communication connection is built between Network and Remote Data Servers.A popular and powerful MCU, ST uPSD3200, is used in this system. The new MCU includes PSD (Programmable System Device) and 8032 Micro Controller, which can match the requirements on system resources and minimize the periphery circuits. In order to make development more convenient, Insight ME-3200(simulator) and MedWin(IDE) are used here.When TCP/IP stack is realized in MCU, the difficulties on technology are as the following: How to complete the complex protocols and status switchers on limited resources of MCU, and at the same time, the real time functionality is required in order to exchange IP data packets on internet. Because of complexity of TCP/IP and limited resources of MCU, how to predigest TCP/IP is the emphasis in this thesis.In order to make the program transplant into other systems, all the codes were done in C language in hierarchical structure. From bottom top is that: IP stack, TCP stack, and Application.The system traces and analyses communication data with Sniffer and checks whether the stack program is correct or not.
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