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  • Windows Mobile 串口通信之串口打开

    不多说先来段代码(重叠方式)

       if(hCom != NULL)
    {
    CloseHandle(hCom);
    }
    hCom=CreateFile(_T("COM1:"), GENERIC_READ|GENERIC_WRITE, 0,NULL , OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, NULL);
    if (hCom==INVALID_HANDLE_VALUE)
    {
    AfxMessageBox(_T("打开COM失败!"));
    return false;
    }
    else{

    SetupComm(hCom,100,100);
    COMMTIMEOUTS TimeOuts;

    TimeOuts.ReadIntervalTimeout=MAXDWORD;
    TimeOuts.ReadTotalTimeoutMultiplier=0;
    TimeOuts.ReadTotalTimeoutConstant=0;

    TimeOuts.WriteTotalTimeoutMultiplier=100;
    TimeOuts.WriteTotalTimeoutConstant=500;

    SetCommTimeouts(hCom,&TimeOuts);
    DCB dcb;
    dcb.BaudRate=1200;
    dcb.ByteSize=8;
    dcb.Parity=NOPARITY;
    dcb.StopBits=TWOSTOPBITS;
    SetCommState(hCom,&dcb);
    PurgeComm(hCom,PURGE_TXCLEAR|PURGE_RXCLEAR);


    CreateFile(_T("COM1:")...)  因为少了一个“:” 浪费一下午,哎。。。。。。

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  • 原文地址:https://www.cnblogs.com/marky/p/2394225.html
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