问题描述

如何将串口接收到的数据返回给主线程并显示在编辑框中？

小弟用的是serialPort，MFC,怎么才能把串口接收到的数据返回给主线程显示在编辑框中？求大侠帮助！

 void CRBAS_ODBCView::OnButtonSurveyStart()
{
    /**************发数据*********************************/
    SerialPort^ _serialPort = gcnew SerialPort("COM3", 38400, Parity(0), 8, StopBits(1));//设置串口信息
    _serialPort->DataReceived += gcnew SerialDataReceivedEventHandler(DataReceived);
    array<unsigned char>^ SendBuf = {0x01,0xF0,0X01,0X08,0XF9,0X0D};
    if (!_serialPort->IsOpen)
        _serialPort->Open();
    for (int i = 0;i < SendBuf->Length;i++)
    {
        _serialPort->Write(SendBuf, i, 1);
        Sleep(10);
    }
    //Draw();
}

 void CRBAS_ODBCView::DataReceived(Object^ sender, SerialDataReceivedEventArgs^ e)
{
    SerialPort^ _serialPort = (SerialPort^)sender;
    Sleep(100);
    int count = _serialPort->BytesToRead;
    array<unsigned char>^ ReadBuf = gcnew array<unsigned char>(count);
    _serialPort->Read(ReadBuf, 0, count);
    //解析
    double m_dInFlow = (ReadBuf[2] * 65536 + ReadBuf[3] * 256 + ReadBuf[4]) / 1000.000;
    _serialPort->Close();
}

解决方案

|在编辑框中显示数据|

解决方案二：

串口接收到数据之后，解析成功之后就给编辑框赋值就行了，可能需要设计两个线程之间的操作