【正文】 c value. It firstly introduces the embedded system position and for embedded Inter generation. Based on the existing embedded Inter and pared several recent microcontroller access Inter, under the precondition of realizing scheme used a based on single chip the characteristics of its own specific solution: embedded TCP/IP protocol. Based on TCP/IP work protocol, the indepth analysis of TCP/IP protocol, reasonable simplified embedded in its limited resources to the interior, so as to realize microprocessor by Email remote data transmission. Key words:摘 要 ........................................................................................................................................................IIABSTRACT ...........................................................................................................................................III第 1 章 引 言 ............................................................................................................................................3 論文選題的背景及意義 .................................................................................................................3 本文主要工作 .................................................................................................................................3第 2 章 嵌入式 INTERNET 系統(tǒng)組成 ...................................................................................................5 嵌入式系統(tǒng)概述 .............................................................................................................................5 嵌入式系統(tǒng)的概念機特點 .....................................................................................................5 嵌入式系統(tǒng)的組成 .................................................................................................................5 嵌入式操作系統(tǒng) ......................................................................................................................6 嵌入式 INTERNET............................................................................................................................7 嵌入式 Inter 概念及特點 ..................................................................................................7 單片機接入 Inter 方案 ......................................................................................................8第 3 章 網(wǎng)絡協(xié)議 ..................................................................................................................................10 TCP/IP 分層模型 ...........................................................................................................................10 數(shù)據(jù)封裝 .......................................................................................................................................11 數(shù)據(jù)幀分用 ...................................................................................................................................12 協(xié)議層簡介 ...................................................................................................................................13 網(wǎng)際層協(xié)議 ...........................................................................................................................13 IP 地址分配 .....................................................................................................................................14 地址解析協(xié)議 .................................................................................................................................15 ICMP 協(xié)議 .......................................................................................................................................16 傳輸控制協(xié)議 .......................................................................................................................16 TCP 連接和釋放 ..............................................................................................................................16 用戶數(shù)據(jù)報協(xié)議 .............................................................................................................................18第四章 系統(tǒng)總體設計 ......................................................................................................................19 硬件設計 .......................................................................................................................................19 TCP/IP 協(xié)議層選擇及分析 ...........................................................................................................20 鏈路層協(xié)議選擇及分析 .......................................................................................................21 網(wǎng)絡層協(xié)議選擇及分析 .......................................................................................................21 傳輸層協(xié)議選擇及分析 .......................................................................................................21 應用層協(xié)議選擇 ...................................................................................................................22第五章 TCP/IP 協(xié)議棧的實現(xiàn) .............................................................................................................24 ARP 協(xié)議的實現(xiàn) ...........................................................................................................................24 ARP 分組格式及數(shù)據(jù)結構 ....................................................................................................24 ARP 協(xié)議軟件實現(xiàn) ................................................................................................................24 IP 協(xié)議及其實現(xiàn) ...........................................................................................................................26 IP 數(shù)據(jù)報格式 .......................................................................................................................27 IP 軟件實現(xiàn) ...........................................................................................................................27 ICMP 報文協(xié)議的實現(xiàn) .................................................................................................................29 TCP 協(xié)議的實現(xiàn) ..............