📄 在vc++6_0中用win32 api实现串行通信-软件-vc-天极yesky.htm

📁 串口编程
💻 HTM
📖 第 1 页 / 共 3 页
字号:
12 3 下一页
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd">
<!-- saved from url=(0040)http://soft.yesky.com/50/2214050_1.shtml -->
<HTML lang=zh-CN xmlns="http://www.w3.org/1999/xhtml"><HEAD><TITLE>在VC++6.0中用Win32 API实现串行通信-软件-VC-天极Yesky</TITLE>
<META content="在VC++6.0中用Win32 API实现串行通信," name=description>
<META content="在VC++6.0中用Win32 API实现串行通信," name=keywords>
<META content="天极Yesky | 全球中文IT第一门户" name=author>
<META content="天极Yesky | 全球中文IT第一门户" name=Copyright>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<META http-equiv=Content-Language content=zh-CN><LINK media=all 
href="在VC++6_0中用Win32 API实现串行通信-软件-VC-天极Yesky.files/y_mobile_content.css" 
type=text/css rel=stylesheet>
<SCRIPT src="在VC++6_0中用Win32 API实现串行通信-软件-VC-天极Yesky.files/showlay.js"></SCRIPT>

<META content="MSHTML 6.00.2900.3199" name=GENERATOR></HEAD>
<BODY><!--页面头部--><!--头部-->
<DIV>
<SCRIPT 
src="在VC++6_0中用Win32 API实现串行通信-软件-VC-天极Yesky.files/kingsoft-kuanban-071105.js"></SCRIPT>
</DIV>
<DIV id=topmenu><A href="http://www.yesky.com/">Yesky首页</A>| <A 
href="http://product.yesky.com/">产品报价</A>| <A 
href="http://cseek.yesky.com/">行情</A>| <A href="http://mobile.yesky.com/">手机</A> 
| <A href="http://digital.yesky.com/">数码</A> | <A 
href="http://notebook.yesky.com/">笔记本</A> | <A 
href="http://pc.yesky.com/">台式机</A> | <A href="http://diy.yesky.com/">DIY硬件</A> 
| <A href="http://oa.yesky.com/">外设</A> | <A href="http://net.yesky.com/">网络</A> 
| <A href="http://dh.yesky.com/">数字家庭</A> | <A 
href="http://lab.yesky.com/">评测</A> | <A href="http://soft.yesky.com/">软件</A> | 
<A href="http://e.yesky.com/">e时代</A> | <A href="http://game.yesky.com/">游戏</A> 
| <A href="http://pic.yesky.com/">图片</A> | <A 
href="http://desktop.yesky.com/">壁纸</A> | <A href="http://q.yesky.com/">群乐</A> | 
<A href="http://my.yesky.com/">社区</A> | <A href="http://blog.yesky.com/">博客</A> 
| <A href="http://www.mydown.com/">下载</A></DIV>
<DIV id=topbox>
<DIV class=tleft><A href="http://www.yesky.com/"><IMG alt=天极Yesky_全球中文IT第一门户 
src="在VC++6_0中用Win32 API实现串行通信-软件-VC-天极Yesky.files/logo.gif" border=0></A></DIV>
<DIV class=tad><SPAN id=ad1></SPAN></DIV>
<DIV id=search>
<DIV>
<FORM name=searchform action=http://search.chinabyte.com/search method=get 
target=_blank><INPUT id=searchzz onmouseover=this.focus() onfocus=this.select() 
name=q><INPUT type=hidden value=GB2312 name=encoding><INPUT type=hidden 
value=connect name=dir><INPUT type=hidden value=20002 name=cid><INPUT id=search_btn type=submit value=天极搜索> </FORM></DIV>
<DIV class=tdq>
<DIV class=rightarea><A href="http://bj.yesky.com/">北京</A> <A 
href="http://hd.yesky.com/">上海</A> <A href="http://gd.yesky.com/">广州</A> <A 
href="http://sz.yesky.com/">深圳</A><BR><A href="http://cd.yesky.com/">成都</A> <A 
href="http://cq.yesky.com/">重庆</A> <A href="http://sy.yesky.com/">沈阳</A> <A 
href="http://xa.yesky.com/">西安</A> </DIV>
<DIV class=rightarea_right><A 
href="http://my.yesky.com/">用户<BR>登录</A></DIV></DIV></DIV>
<DIV class=tright>
<DIV class=box1>
<SCRIPT src="在VC++6_0中用Win32 API实现串行通信-软件-VC-天极Yesky.files/content_text_ad.js" 
type=text/javascript></SCRIPT>
</DIV></DIV></DIV>
<SCRIPT src="在VC++6_0中用Win32 API实现串行通信-软件-VC-天极Yesky.files/flash.js" 
type=text/javascript></SCRIPT>

<DIV id=childmenu><A href="http://soft.yesky.com/">软件频道&gt;</A><A 
href="http://design.yesky.com/">设计</A><A href="http://tools.yesky.com/">工具</A><A 
href="http://os.yesky.com/">系统</A><A href="http://dev.yesky.com/">开发</A><A 
href="http://soft.yesky.com/security/">安全</A><A 
href="http://soft.yesky.com/office/">办公</A><A 
href="http://homepage.yesky.com/">陶吧</A><A 
href="http://edu.yesky.com/">IT教育</A><A 
href="http://vista.yesky.com/">Vista频道</A>|<A 
href="http://soft.yesky.com/lesson/">软件频道产品中心</A><A 
href="http://q.yesky.com/group/search.do?cid=661">群乐</A><A 
href="http://www.mydown.com/soft/">软件下载</A><A 
href="http://q.yesky.com/group/202019"><FONT color=#ff0000>Vista群乐</FONT></A><A 
href="http://www.ibm.com/developerworks/cn/edu/j-dw-java-junit4.html?S_TACT=105AGX52&amp;S_CMP=top-yesky">深入探索JUnit 
4</A></DIV><!--导航条-->
<DIV id=location>
<DIV class=loleft>您现在的位置： <A href="http://www.yesky.com/" target=_self>天极网</A> 
&gt; <A href="http://soft.yesky.com/" target=_self>软件频道</A> &gt; 在VC++6.0中用Win32 
API实现串行通信</DIV>
<DIV class=adright><SPAN id=ad2></SPAN></DIV></DIV><!--内容块开始-->
<DIV id=conbox><!--左边开始-->
<DIV id=conleft>
<DIV id=contopla1>
<DIV id=__001>
<DIV class=qkong></DIV>
<DIV class=qw1>全文</DIV>
<DIV class=zkong>
<DIV class=kl></DIV>
<DIV class=bj><A href="http://soft.yesky.com/50/2214050_1.shtml#pls" 
target=_self>评论</A></DIV>
<DIV class=kr></DIV><!-- Error -->
<SCRIPT type=text/javascript>
var titiepic ="#";
if (titiepic!="#")
{
document.write("<div class=\"kl\"></div><div class=\"bj\"><a href=\"#\" target=\"_blank\">图片</a></div><div class=\"kr\"></div>");
}
</SCRIPT>
<!-- Error --></DIV></DIV></DIV>
<DIV class=topadbg><SPAN id=ad10></SPAN></DIV><A name=top></A>
<DIV id=contitle>
<H1>在VC++6.0中用Win32 API实现串行通信</H1></DIV>
<DIV id=conauthor><SPAN>2005-11-29 13:08 </SPAN><SPAN>作者： 刘涛 </SPAN><SPAN>出处： 
天极开发 </SPAN><SPAN>责任编辑：<A title=向本编辑提问 
href="http://comments.yesky.com/t/·&frac12;&Ouml;&Ucirc;/6,324/2214050.shtml" target=_blank>方舟</A> 
</SPAN></DIV>
<DIV class=topadbg><SPAN id=ad9></SPAN></DIV>
<DIV id=conneirong><SPAN id=ad3></SPAN>
<DIV class=guanggao><SPAN id=contentAdv></SPAN></DIV>　　<B>三、程序代码</B><BR><BR>
<TABLE borderColor=#cccccc width="90%" align=center bgColor=#e3e3e3 border=1>
  <TBODY>
  <TR>
    <TD>//////////////////////////////////////////////////////////////<BR><BR>#if 
      !defined(_COMM_ACCESS_FUNCTIONS_AND_DATA)<BR>#define 
      _COMM_ACCESS_FUNCTIONS_AND_DATA<BR>#if _MSC_VER &gt; 1000<BR>#pragma 
      once<BR>#endif // _MSC_VER &gt; 1000<BR>#define EVENTCHAR 0x0d<BR>#define 
      MAXBLOCKLENGTH 59<BR><BR>extern BYTE XwCom;<BR>extern BYTE 
      sCom1[5],sCom2[MAXBLOCKLENGTH+12]；<BR>extern 
      sCom3[MAXBLOCKLENGTH+12];<BR>extern BYTE opation;<BR>extern short 
      ComNum;<BR><BR>#define FC_DTRDSR 0x01<BR>#define FC_RTSCTS 0x02<BR>#define 
      FC_XONXOFF 0x04<BR>#define ASCII_BEL 0x07<BR>#define ASCII_BS 
      0x08<BR>#define ASCII_LF 0x0A<BR>#define ASCII_CR 0x0D<BR>#define 
      ASCII_XON 0x11<BR>#define ASCII_XOFF 0x13<BR><BR>class 
      CComStatus<BR>{<BR>　public:<BR>　　HANDLE m_hCom;<BR>　　BYTE 
      m_bComId;<BR>　　BYTE m_bByteSize;<BR>　　BYTE m_bStopBits;<BR>　　BYTE 
      m_bParity;<BR>　　DWORD m_dwBaudRate;<BR><BR>　　//WORD 
      m_fChEvt;<BR><BR>　　char m_bEvtChar;<BR>　　DWORD m_fBinary;<BR>　　BOOL 
      m_bConnected;<BR>　　BOOL m_fXonXoff;<BR>　　BOOL m_bFlowCtrl;<BR>　　OVERLAPPED 
      m_rdos;<BR>　　OVERLAPPED 
      m_wtos;<BR><BR>　　//functions<BR><BR>　　CComStatus();<BR>　　CComStatus(BYTE 
      bComId,BYTE bByteSize,BYTE bStopBits,BYTE bParity,<BR>　　　　DWORD 
      dwBaudRate,/*WORD fChEvt,*/char bEvtChar,DWORD fBinary);<BR>　　BOOL 
      OpenConnection();<BR>　　BOOL CloseConnection();<BR>　　BOOL 
      SetupConnection();<BR>　　BOOL IsConnected();<BR>};<BR><BR>UINT 
      CommWatchProc( LPVOID lpData );<BR>BOOL WriteCommBlock( CComStatus&amp; 
      comDev, LPSTR lpByte , DWORD dwBytesToWrite);<BR>int 
      ReadCommBlock(CComStatus&amp; comDev,LPSTR lpszBlock, int nMaxLength 
      );<BR>int ReadCommBlockEx(CComStatus&amp; comDev,LPSTR lpszBlock, int 
      nMaxLength,DWORD 
      dwTimeOut);<BR>#endif<BR><BR>///////////////////////////////////////////////////////////////////////<BR><BR>#include 
      "stdafx.h"<BR>#include "com232.h"<BR><BR>BYTE XwCom=0x40;<BR>BYTE 
      sCom1[5],sCom2[MAXBLOCKLENGTH+12],sCom3[MAXBLOCKLENGTH+12];<BR>BYTE 
      opation;<BR>short ComNum;<BR>CComStatus::CComStatus()<BR>{<BR>　m_hCom = 
      NULL;<BR>　m_bComId = 
      (char)ComNum;//COM1<BR>　m_bByteSize=8;<BR>　m_bStopBits=ONESTOPBIT;<BR>　m_bParity=NOPARITY;<BR>　m_dwBaudRate=9600;<BR>　m_bEvtChar=EVENTCHAR;<BR>　m_fBinary=1;<BR>　m_bConnected 
      = FALSE;<BR>　m_bFlowCtrl = FC_XONXOFF ;<BR>　m_fXonXoff = 
      FALSE;<BR>}<BR><BR>CComStatus::CComStatus(BYTE bComId,BYTE bByteSize,BYTE 
      bStopBits,BYTE bParity,DWORD dwBaudRate,/*WORD fChEvt,*/char 
      bEvtChar,DWORD fBinary)<BR>{<BR>　m_hCom = NULL;<BR>　m_bComId = 
      bComId;<BR>　m_bByteSize=bByteSize;<BR>　m_bStopBits=bStopBits;<BR>　m_bParity=bParity;<BR>　m_dwBaudRate=dwBaudRate;<BR>　m_bEvtChar=bEvtChar;<BR>　m_fBinary=fBinary;<BR>　m_bConnected 
      = FALSE;<BR>　m_bFlowCtrl = FC_XONXOFF ;<BR>　m_fXonXoff = 
      FALSE;<BR>}<BR><BR>BOOL CComStatus::OpenConnection()<BR>{<BR>　char 
      csCom[10];<BR>　COMMTIMEOUTS CommTimeOuts ;<BR>　if((m_bComId &lt; 0) || 
      (m_bComId &gt; 4))<BR>　　return FALSE;//从COM1到COM4<BR>　if(m_hCom)//if 
      already open<BR>　return 
      FALSE;<BR><BR>　//OVERLAPPED包含异步I/O信息<BR><BR>　m_rdos.Offset = 
      0;<BR>　m_rdos.OffsetHigh = 0;<BR>　m_rdos.hEvent = 
      CreateEvent(NULL,TRUE,FALSE,NULL);<BR>　if(m_rdos.hEvent == 
      NULL)<BR>　　return FALSE;<BR>　m_wtos.Offset = 0;<BR>　m_wtos.OffsetHigh = 
      0;<BR>　m_wtos.hEvent = 
      CreateEvent(NULL,TRUE,FALSE,NULL);<BR>　if(m_wtos.hEvent == 
      NULL)<BR>　{<BR>　　CloseHandle(m_rdos.hEvent);<BR>　　return 
      FALSE;<BR>　}<BR><BR>　wsprintf(csCom,"COM%d",m_bComId);<BR><BR>　m_hCom = 
      CreateFile(csCom,GENERIC_READ | GENERIC_WRITE, 0,NULL, 
      OPEN_EXISTING,ILE_ATTRIBUTE_NORMAL | 
      FILE_FLAG_OVERLAPPED,NULL);<BR><BR>　if(m_hCom == INVALID_HANDLE_VALUE) 
      {<BR>　　//dwError = GetLastError();<BR>　　// handle error <BR>　　return 
      FALSE;<BR>　}<BR>　else<BR>　{<BR>　　SetCommMask( m_hCom, EV_RXCHAR ) ; // get 
      any early notifications<BR>　　SetupComm( m_hCom, 4096, 4096 ) ; // setup 
      device buffers<BR>　　// purge any information in the 
      buffer<BR><BR>　　PurgeComm( m_hCom, PURGE_TXABORT | PURGE_RXABORT 
      |PURGE_TXCLEAR | PURGE_RXCLEAR ) ;<BR><BR>　　// set up for overlapped 
      I/O<BR><BR>　　DWORD dwTemp = 1000 / (this-&gt;m_dwBaudRate / 
      8);<BR>　　CommTimeOuts.ReadIntervalTimeout = 0xFFFFFFFF 
      ;<BR>　　CommTimeOuts.ReadTotalTimeoutMultiplier = 0;//((dwTemp &gt; 0) ? 
      dwTemp : 1);<BR>　　CommTimeOuts.ReadTotalTimeoutConstant = 1000 
      ;<BR><BR>　　// CBR_9600 is approximately 1byte/ms. For our purposes, 
      allow<BR>　　// double the expected time per character for a fudge 
      factor.<BR><BR>　　CommTimeOuts.WriteTotalTimeoutMultiplier 
      =2*CBR_9600/this-&gt;m_dwBaudRate;//( npTTYInfo ) 
      ;<BR>　　CommTimeOuts.WriteTotalTimeoutConstant = 0;//1000 
      ;<BR><BR>　　SetCommTimeouts( m_hCom, &amp;CommTimeOuts ) 
      ;<BR>　}<BR>　if(!SetupConnection())<BR>　{<BR>　　CloseConnection();<BR>　　return 
      FALSE;<BR>　}<BR>　EscapeCommFunction( m_hCom, SETDTR );<BR>　m_bConnected = 
      TRUE;<BR>　return TRUE;<BR>}<BR><BR>BOOL 
      CComStatus::CloseConnection()<BR>{<BR>　if (NULL == m_hCom)<BR>　　return ( 
      TRUE ) ;<BR>　// set connected flag to FALSE<BR>　m_bConnected = 
      FALSE;<BR>　// disable event notification and wait for thread<BR>　// to 
      halt<BR>　SetCommMask( m_hCom, 0 ) ;<BR>　EscapeCommFunction( m_hCom, CLRDTR 
      ) ;<BR>　// purge any outstanding reads/writes and close device 
      handle<BR>　PurgeComm( m_hCom, PURGE_TXABORT | PURGE_RXABORT | 
      PURGE_TXCLEAR | PURGE_RXCLEAR ) ;<BR>　CloseHandle( m_hCom ) ;<BR>　m_hCom = 
      NULL;<BR><BR>　// change the selectable items in the 
      menu<BR><BR>　CloseHandle(m_rdos.hEvent);<BR>　CloseHandle(m_wtos.hEvent);<BR>　return 
      ( TRUE ) ;<BR>}<BR><BR>BOOL CComStatus::SetupConnection()<BR>{<BR>　BOOL 
      fRetVal ;<BR>　BYTE bSet ;<BR>　DCB dcb ;<BR>　if(m_hCom == NULL)<BR>　　return 
      FALSE; <BR>　dcb.DCBlength = sizeof( DCB ) ;<BR>　GetCommState( m_hCom, 
      &amp;dcb ) ;<BR>　dcb.BaudRate = this-&gt;m_dwBaudRate;<BR>　dcb.ByteSize = 
      this-&gt;m_bByteSize;<BR>　dcb.Parity = 
      this-&gt;m_bParity;<BR>　dcb.StopBits = this-&gt;m_bStopBits 
      ;<BR>　dcb.EvtChar = this-&gt;m_bEvtChar ;<BR>　// setup hardware flow 
      control<BR>　bSet = (BYTE) ((m_bFlowCtrl &amp; FC_DTRDSR) != 0) 
      ;<BR>　dcb.fOutxDsrFlow = bSet ;<BR>　if (bSet)<BR>　　dcb.fDtrControl = 
      DTR_CONTROL_HANDSHAKE ;<BR>　else<BR>　　dcb.fDtrControl = DTR_CONTROL_ENABLE 
      ;<BR>　bSet = (BYTE) ((m_bFlowCtrl &amp; FC_RTSCTS) != 0) 
      ;<BR>　dcb.fOutxCtsFlow = bSet ;<BR>　if (bSet)<BR>　　dcb.fRtsControl = 
      RTS_CONTROL_HANDSHAKE ;<BR>　else<BR>　　dcb.fRtsControl = RTS_CONTROL_ENABLE 
      ;<BR>　// setup software flow control<BR>　bSet = (BYTE) ((m_bFlowCtrl &amp; 
      FC_XONXOFF) != 0) ;<BR>　dcb.fInX = dcb.fOutX = bSet ;<BR>　dcb.XonChar = 
      ASCII_XON ;<BR>　char xon = ASCII_XON ;<BR>　dcb.XoffChar = ASCII_XOFF 
      ;<BR>　char xoff = ASCII_XOFF ;<BR>　dcb.XonLim = 100 ;<BR>　dcb.XoffLim = 
      100 ;<BR>　// other various settings<BR>　dcb.fBinary = TRUE 
      ;<BR>　dcb.fParity = TRUE ;<BR>　fRetVal = SetCommState( m_hCom, &amp;dcb ) 
      ;<BR>　return ( fRetVal ) ;<BR>} // end of SetupConnection()<BR><BR>BOOL 
      CComStatus::IsConnected()<BR>{<BR>　return m_bConnected;<BR>}<BR><BR>UINT 
      CommWatchProc( LPVOID lpData )<BR>{<BR>　DWORD dwEvtMask ;<BR>　//NPTTYINFO 
      npTTYInfo = (NPTTYINFO) lpData ;<BR>　OVERLAPPED os ;<BR>　int nLength 
      ;<BR>　//BYTE abIn[ MAXBLOCK + 1] ;<BR><BR>　CComStatus * pCom = (CComStatus 
      *)lpData;<BR>　memset( &amp;os, 0, sizeof( OVERLAPPED ) ) ;<BR>　// create 
      I/O event used for overlapped read<BR><BR>　os.hEvent = CreateEvent( NULL, 
      // no security<BR>　　TRUE, // explicit reset req<BR>　　FALSE, // initial 
      event reset<BR>　　NULL ) ; // no name<BR><BR>　if (os.hEvent == 
      NULL)<BR>　{<BR>　　MessageBox( NULL, "Failed to create event for thread!", 
      "TTY Error!",MB_ICONEXCLAMATION | MB_OK ) ;<BR>　　return ( FALSE ) 
      ;<BR>　}<BR>　if (!SetCommMask( pCom-&gt;m_hCom, EV_RXCHAR ))<BR>　　return ( 
      FALSE ) ;<BR>　char buf[256];<BR>　while ( pCom-&gt;m_bConnected
12 3 下一页
💿 文件大小 128 K
👤 上传用户 afaslgo
📂 所属分类串口编程
🏷️ 相关标签

#串口编程
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -