/// <summary>
/// 发送数据
/// </summary>
/// <param name="serialPort">串口</param>
/// <param name="txData">要发送的数据</param>
/// <param name="isWriteData">是否是写数据</param>
public static void SendData(SerialPort serialPort, byte[] txData, bool isWriteData = true)
{
if (serialPort == null)
{
return;
}
List <byte> sendData = new List <byte>();
sendData.AddRange(txData);
sendData.Add(HelperTool.GetChecksum(crc8, txData));
if (serialPort.IsOpen)
{
serialPort.Close();
}
if (!serialPort.IsOpen)
{
serialPort.Open();
}
receDataLength = -1;
recData?.Clear();
serialPort.DiscardOutBuffer();
if (isWriteData == false)
{
isReadAll = true;
serialPort.DiscardInBuffer();
}
else
{
isReadAll = false;
}
serialPort.Write(sendData.ToArray(), 0, sendData.Count());
Console.WriteLine("发送数据！");
}
private static void SerialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
SerialPort serialPort = (SerialPort)sender;
// 接收到数据之前，需要设置接收的数据长度
int bytesToRead = serialPort.BytesToRead;
byte[] ReDatas = new byte[bytesToRead];
serialPort.Read(ReDatas, 0, bytesToRead);
if (bytesToRead == 0)
{
return;
}
if (isReadAll == false)
{
return;
}
receDataLength += bytesToRead;
Console.WriteLine("接收数据长度:" + receDataLength);
if (recData == null)
{
recData = new List <byte>();
}
recData.AddRange(ReDatas);
if ((receDataLength + 1) == (headLength + dataAllToRead + checkCodeLength) && HelperTool.GetChecksum(crc8, recData.ToArray()) == 0)
{
// 解析数据
ParseReData(recData.ToArray());
receDataLength = -1;
recData.Clear();
}
}