public bool CloseSerialPort()
{
try //尝试关闭串口
{
CurrentSerialPort.DiscardOutBuffer(); //清发送缓存
CurrentSerialPort.DiscardInBuffer(); //清接收缓存
//WaitClose = true;//激活正在关闭状态字，用于在串口接收方法的invoke里判断是否正在关闭串口
CurrentSerialPort.Close(); //关闭串口
// WaitClose = false;//关闭正在关闭状态字，用于在串口接收方法的invoke里判断是否正在关闭串口
SetAfterClose(); //成功关闭串口或串口丢失后的设置
bComPortIsOpen = false;
}
catch //如果在未关闭串口前，串口就已丢失，这时关闭串口会出现异常
{
if (CurrentSerialPort.IsOpen == false) //判断当前串口状态，如果ComPort.IsOpen==false，说明串口已丢失
{
SetComLose();
}
else//未知原因，无法关闭串口
{
//throw new Exception("unable close serial port");
OnSerialPortMiss(new SerialPortMissingEventArgs("unable close serial port"));
}
}
return(true);
}
public bool OpenSerialPort(String PortName)
{
if (_comPortIsOpen == false)
{
try //尝试打开串口
{
CurrentSerialPort.ReadTimeout = 8000; //串口读超时8秒
CurrentSerialPort.WriteTimeout = 8000; //串口写超时8秒，在1ms自动发送数据时拔掉串口，写超时5秒后，会自动停止发送，如果无超时设定，这时程序假死
CurrentSerialPort.ReadBufferSize = 1024; //数据读缓存
CurrentSerialPort.WriteBufferSize = 1024; //数据写缓存
CurrentSerialPort.DataReceived += ComReceive; //串口接收中断
CurrentSerialPort.PortName = PortName;
CurrentSerialPort.Open();
_comPortIsOpen = true; //串口打开状态字改为true
}
catch (Exception exception) //如果串口被其他占用，则无法打开
{
_comPortIsOpen = false;
ReceiveCompleted = false;
throw new Exception("unable open serial port" + exception.Message);
}
return(true);
}
return(true);
}
public bool SendDataPacket(char[] senddata)
{
try
{
ByteMode = false;
CurrentSerialPort.Write(senddata, 0, senddata.Length);
}
catch (Exception exception)
{
Console.WriteLine(exception.Message);
return(false);
}
return(true);
}
public bool SendDataPacket(byte[] dataPackeg)
{
try
{
ByteMode = true;
CurrentSerialPort.Write(dataPackeg, 0, dataPackeg.Length);
}
catch (Exception exception)
{
Console.WriteLine(exception.Message);
OnSerialPortMiss(new SerialPortMissingEventArgs("send exception"));
return(false);
}
return(true);
}
public bool SendDataPacket(byte[] dataPackeg)
{
try
{
CurrentSerialPort.DiscardInBuffer();//清接收缓存
ByteMode = true;
CurrentSerialPort.Write(dataPackeg, 0, dataPackeg.Length);
}
catch (Exception exception)
{
Console.WriteLine(exception.Message);
return(false);
}
return(true);
}
private void ComReceive(object sender, SerialDataReceivedEventArgs e)
{
bReceiveCompleted = false;
if (bRecStaus) //如果已经开启接收
{
try
{
Thread.Sleep(50);
ReceivedDataPacket = new byte[CurrentSerialPort.BytesToRead];
ReceivedDataPacketChar = new char[CurrentSerialPort.BytesToRead];
// change to char datas
if (ByteMode)
{
CurrentSerialPort.Read(ReceivedDataPacket, 0, ReceivedDataPacket.Length);
receiveArrByteQueue.Enqueue(ReceivedDataPacket);
receiveArrCharQueue.Clear();//清空Char接收缓存
//OnSerialPortMiss(new SerialPortMissingEventArgs("test event byte"));
}
else
{
CurrentSerialPort.Read(ReceivedDataPacketChar, 0, ReceivedDataPacketChar.Length);
receiveArrCharQueue.Enqueue(ReceivedDataPacketChar);
receiveArrByteQueue.Clear();//清空Byte接收缓存
// OnSerialPortMiss(new SerialPortMissingEventArgs("test event char"));
}
bReceiveCompleted = true;
}
catch (Exception)
{
if (CurrentSerialPort.IsOpen == false) //如果ComPort.IsOpen == false，说明串口已丢失
{
SetComLose(); //串口丢失后相关设置
}
else
{
// throw new Exception("unable to receive data");
OnSerialPortMiss(new SerialPortMissingEventArgs("unable close serial port"));
}
}
}
else //暂停接收
{
CurrentSerialPort.DiscardInBuffer(); //清接收缓存
}
}
private void ComReceive(object sender, SerialDataReceivedEventArgs e)
{
ReceiveCompleted = false;
if (_recStaus) //如果已经开启接收
{
try
{
Thread.Sleep(50);
ReceivedDataPacket = new byte[CurrentSerialPort.BytesToRead];
ReceivedDataPacketChar = new char[CurrentSerialPort.BytesToRead];
// change to char datas
if (ByteMode)
{
CurrentSerialPort.Read(ReceivedDataPacket, 0, ReceivedDataPacket.Length);
/*
* string s = "";
* for (int a = 0; a < ReceivedDataPacket.Length; a++)
* s += ReceivedDataPacket[a] + " ";
* new LOG.LogClass().WriteLogFile(LOG.LogSerial.logSerialnum + "---serialGetData-->" + s);
*/
}
else
{
CurrentSerialPort.Read(ReceivedDataPacketChar, 0, CurrentSerialPort.BytesToRead);
}
ReceiveCompleted = true;
}
catch (Exception)
{
if (CurrentSerialPort.IsOpen == false) //如果ComPort.IsOpen == false，说明串口已丢失
{
SetComLose(); //串口丢失后相关设置
}
else
{
throw new Exception("unable to receive data");
}
}
}
else //暂停接收
{
CurrentSerialPort.DiscardInBuffer(); //清接收缓存
}
}
public void CleanBuffer()
{
CurrentSerialPort.DiscardOutBuffer(); //清发送缓存
CurrentSerialPort.DiscardInBuffer(); //清接收缓存
}
