【正文】 ndow 圖形界面編程就是 VC++編程開發(fā)的經(jīng)典展現(xiàn)之一。 隨著 通信技術的不斷創(chuàng)新和發(fā)展以及 計 算機網(wǎng)絡和多微機系統(tǒng)的廣泛應用， USB 通信技術的 發(fā)展 如此迅速 ， 盡管如此， 然而串口通信技術以其 實現(xiàn)簡單、使用靈活方便、數(shù)據(jù)傳輸可靠等優(yōu)點并未面臨被淘汰，反而在通信領域中一直都被 人們廣泛的 應用。 CRC Cyclic Redundancy Check I 目 錄 摘 要 ..................................................................................................................................... I Abstract ...................................................................................................................................... II 第 1 章 緒論 .............................................................................................................................. 1 課題的研究意義 ......................................................................................................... 1 研究現(xiàn)狀及發(fā)展趨勢 ................................................................................................. 2 RS232 串行通信的研究現(xiàn)狀 ........................................................................... 2 RS232 串行通信的發(fā)展趨勢 ........................................................................... 2 本文主要的研究內(nèi)容 ................................................................................................. 2 第 2 章串行通信基本原理 ........................................................................................................ 4 RS232 通信協(xié)議 .......................................................................................................... 4 RS232 標準 ....................................................................................................... 4 RS232 接口 ....................................................................................................... 4 串行通信 ..................................................................................................................... 5 串行通信基本原理 .......................................................................................... 5 串行通信參數(shù) .................................................................................................. 6 串行通信的分類 ...................................................................................................... 7 串口的調制 ................................................................................................................. 8 串口連接 .......................................................................................................... 8 串口調試 .......................................................................................................... 9 本章小結 ................................................................................................................... 10 第 3 章 CRC 校驗 ................................................................................................................... 11 CRC 校驗原理 ........................................................................................................... 11 CRC 校驗碼的基本原理 ................................................................................ 11 CRC 校驗碼權的形式 .................................................................................... 12 CRC 校驗的實現(xiàn) ....................................................................................................... 13 本章小結 .................................................................................................................... 13 第 4 章 軟件的實現(xiàn)及其測試 ................................................................................................ 14 開發(fā)工具概述 ........................................................................................................... 14 Windows 編程與 MFC ................................................................................... 14 串行通信控件 MSComm .............................................................................. 14 程序的主要功能 ....................................................................................................... 15 程序運行平臺 ........................................................................................................... 17 II 詳細設計 .................................................................................................................... 17 建立工程 ........................................................................................................ 17 界面功能實現(xiàn) ................................................................................................ 18 模塊分析 ........................................................................................................ 21 程序測試 ........................................................................................................ 32 本章小結 ................................................................................................................... 36 第 5 章 結論 ............................................................................................................................ 37 參 考 文 獻 ............................................................................................................................ 38 致 謝 .................................................................................................... 錯誤 !未定義書簽。 Serial Communications。 關鍵詞： RS232 標準 ；串行通信； C++； CRC 校驗 II Abstract With the rapid development of science and technology, munication technology has bee an indispensable part of social economy,environment,living and learning. There are many kinds of munication selection of munication mode mainly depends on the munication industrial control systems and munication is widely used in puter and external equipment due to the simple and flexible advantage. Around serial munication technology, this paper mainly introduces the serial munication interface RS232 serial port, and expounds the basic principle of RS232 serial munication and CRC , realize serial munication through VC programming. During the process of transmission through the CRC to check the da