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程序初始化的部分代码：
    YbCommDevice1->PackageInterval = 40;   //间隔为 40 毫秒, 根据实际情况设置
    YbCommDevice1->PackageSize = 1024; //产生一次事件最多能够接收的字节数, 根据实际情况设置
    YbCommDevice1->PackageType = cptFrameTimeout; //用判断时间间隔的方法接收数据
    YbCommDevice1->UsePackage = true;
串口OnPackage部分代码：
void __fastcall TMainForm::YbCommDevice1Package(TObject *Sender,
      int NotifyType)
{
    if(NotifyType & EV_RXCHAR) //如果 NotifyType 的 RXCHAR 位为 1
    {
        unsigned char Buf[8192]; //收到的字节数不会超过串口缓存的容量, 所以分配一个缓存容量相同的Buf
        int n = YbCommDevice1->ReadPackage(Buf,8192); //收到 n 个字节
        if(n == 0) return;

        AnsiString s;
        AnsiString msg;
        static int dataCount1 = 0;
        static int dataCount2 = 0;

        for(int i=0; i        switch(iComm1Status)
        {
            case 2:    // 谱图采集状态
            {
                if(s==("55555500"+sPCCode+"FC"))
                {
                    //Memo3->Lines->Add("已经停止数据采集！");
                    msg = DateTimeToStr(Now())+ "    已经停止数据采集！";
                    mm.AddMessage(3, msg.c_str());
                    dxbtnStart->Enabled = true;
                    dxbtnStop->Enabled = false;
                    sbtnFunctionTest->Enabled = true;
                    sbtnTempTest->Enabled = true;
                    dataCount1 = 0;
                    fclose(datafile);
                    iComm1Status = 0;
                    return;
                }
            break;
            }
            case 1:    // 基线测试状态
            {
                if(s==("55555500"+sPCCode+"008555FFFF55"))
                {
                    //Memo3->Lines->Add("已经停止基线测试！");
                    msg = DateTimeToStr(Now())+ "    已经停止基线测试！";
                    mm.AddMessage(3, msg.c_str());
                    dxbtnAdjust->Enabled = true;
                    dxbtnEnd->Enabled = false;
                    sbtnFunctionTest->Enabled = true;
                    sbtnTempTest->Enabled = true;
                    dataCount2 = 0;
                    iComm1Status = 0;
                    return;
                }
                int tmpY;
                double Y;
                tmpY = Buf[0]*256 + Buf[1];
                Y = RoundTo(2500.0*tmpY/65535.0, -2);
                stTime->Caption = dataCount2;
                stVolt->Caption = Y;
                SampleSeries->AddXY(dataCount2, Y);
                dataCount2++;
                break;
            }
            case 0:     // 命令状态
            {
                if(s==("55555500"+sPCCode+"8A"))
                {
                    //vMemo[iNowPageIndex]->Lines->Add(DateTimeToStr(Now())+ "    开始接收数据……");
                    msg = DateTimeToStr(Now())+ "        开始接收数据……";
                    mm.AddMessage(3, msg.c_str());
                    iComm1Status = 2;
                    dxbtnCompute1->Enabled = false;
                    dxbtnStart->Enabled = false;
                    dxbtnStop->Enabled = true;
                    sbtnFunctionTest->Enabled = false;
                    sbtnTempTest->Enabled = false;
                }
                else if(s==("55555500"+sPCCode+"2B0155FFFF55"))
                {
                    bIsSuccess = true;
                    msg = DateTimeToStr(Now())+ "        成功建立通讯！";
                    mm.AddMessage(1, msg.c_str());
                    bTongxunOK = true;
                    ltvwTestContent->Items->Item[0]->SubItems->Strings[0] = testObj[0].Command[0].Status;
                }
                break;
            }
            default:
                break;
        }
    }        
}

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