/// <summary>
/// 使用事件觸發方式來實現串口數據的讀取
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void sp_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte[] Resoursedata = new byte[serialPort.BytesToRead];
int count = serialPort.Read(Resoursedata, 0, Resoursedata.Length);//在此就可以讀取到當前緩衝區內的數據
//執行數據操作
serialPort.DiscardInBuffer(); //丟棄傳輸緩衝區數據
serialPort.DiscardOutBuffer(); //每次丟棄接收緩衝區的數據
if (count > 0)
{
if (SerialPortMessageEvent != null && SerialPortMessageEvent.GetInvocationList().Length > 0) // If somebody is listening
{
SerialPortMessageEvent.Invoke(Resoursedata); // Invoke方法防止主線程擁堵衝突
}
}
}
private void ListenSerialPort()
{
while ((serialPort.IsOpen == true))
{
try
{
int bufferSize = serialPort.ReadBufferSize;
//
byte[] buf = new byte[bufferSize];
int count = serialPort.Read(buf, 0, bufferSize);
if (count > 0)
{
if (SerialPortMessageEvent != null && SerialPortMessageEvent.GetInvocationList().Length > 0) // If somebody is listening
{
SerialPortMessageEvent.Invoke(buf);
}
}
}
catch (System.Exception)
{
}
}
}