Question

我正在开发一个通过端口4与我的电子电路通信的应用程序。我可以毫无问题地将数据从PC发送到电路;然后我从电路中获取数据。但是，当我第二次尝试从我的电路中获取数据时，我收到了错误的数据。关于如何解决这个问题的任何指示？

这是C＃代码：

byte[] Sent_Byte = {1,2,3,4,5,6};
byte[] Received_Byte = new byte[10];

private void button_sendData_Click(object sender, EventArgs e)
{
    // I send this data because the circuit is ready to get data
    serialPort1.Write("G");
    serialPort1.Write(Sent_Byte, 0, 6);
}

private void button_getData_Click(object sender, EventArgs e)
{
    // I send this data because the circuit is ready to send data
    serialPort1.Write("A");
}


private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
        serialPort1.Read(Received_Byte, 0, 10); 
}

这是Arduino代码：

char Control_OP=0;
char Received_Data[6]; 
byte Sent_Data[10];

void loop()
{
  while(Serial.available())
  {
    Control_OP = Serial.read(); // determines whether receiving data or sending data

    if(Control_OP=='G') // receiving data
    {   
      Number=Serial.readBytes(Received_Data,6); 
    }

    else if(Control_OP=='A') // sending data
    {
      Serial.write(Sent_Data,10);
    }
  }
}

Answer 1

我找到了解决方案。

我更改了此代码

private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
            serialPort1.Read(Received_Byte, 0, 10); 
}

进入这个

private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
    {
            for (int i = 0; i <Received_Byte.Length; i++)
            {
                Received_Byte[i] = Convert.ToByte(serialPort1.ReadByte());
            }
    }

感谢大家帮助我

SerialPort读取过程在C＃中无法正常工作

1 个答案: