嵌入式系统TCP/IP协议栈的定制研究

由于受硬件资源的限制,标准TCP/IP协议栈移植到嵌入式系统中,必须进行精简处理,形成嵌入式TCP/IP协议栈。本文在对标准TCP/IP协议栈的组成结构分析基础上,针对简单文件传输的需要,选择ARP、IP、UDP、TFTP四个基本协议进行简化定制,提出了一种新的嵌入式TCP/IP协议栈。文中阐述了对各协议进行优化精简的原理和方法,给出了协议的具体运行机制和处理流程。所提出的协议栈占用系统资源少,文件传输速度快且具有很高的可靠性。

Customization and Research of the TCP/IP Protocol Stack for Embedded System

Due to the limits of hardware resources,to transplant the standard TCP / IP protocol stack into embedded system,the standard TCP / IP protocol stack should be simplified to become embedded TCP / IP protocol stack.In this paper,base on the analysis of the structure of the standard TCP / IP protocol stack,according to the need of simple file transfer,four basic protocols ARP,IP,UDP,TFTP are chosen and simplification customized,a new embedded TCP/ IP protocol stack is proposed.The simplification principles and methods of every protocol are deeply described in this paper.The specific operational mechanisms and processes of every protocol are given.The new protocol stack occupies less system resources,the file transfer is fast and reliable.