public static bool Connect(string strCom, int nBaudrate)
{
SerialPortUtil serialPort;
try
{
string[] coms = SerialPortUtil.GetComList();
if (!coms.Contains(strCom))
{
string str = string.Format("未找到串口:{0}", strCom);
PrintLog.LogText(string.Format(str));
#if TEST
OutputDebugString(str);
#endif
return(false);
}
if (dictionarySerialPort.ContainsKey(strCom))
{
serialPort = dictionarySerialPort[strCom];
}
else
{
serialPort = new SerialPortUtil(strCom, nBaudrate.ToString(), "0", "8", "1");
dictionarySerialPort.Add(strCom, serialPort);
}
serialPort.OpenPort();
}
catch
{
return(false);
}
if (serialPort.IsOpen)
{
return(true);
}
else
{
return(false);
}
}
public static string SendCMDStrToController(byte[] bytes, string strCom, int nBaudrate, int nCount = 0, int nOffset = 0)
{
SerialPortUtil serialPort;
if (strCom == null)
{
return(null);
}
try
{
lock (ojbSend)
{
//1.初始化串口
if (false == InitSerialPort(strCom, out serialPort, nBaudrate))
{
return(null);
}
serialPort.DiscardBuffer();
//2.发送数据
string strSendCMD = Encoding.ASCII.GetString(bytes, 0, bytes.Length);
PrintLog.LogText(string.Format("{0} Send: {1}", strCom, strSendCMD));
readstring = string.Empty; //清空接收缓冲区
Thread SendCmdToControllerThread = new Thread(() =>
{
try
{
if (!serialPort.IsOpen)
{
serialPort.OpenPort();
}
#if TEST
#else
serialPort.DataReceived += new DataReceivedEventHandler(serialPort_DataReceived);
#endif
readstring = string.Empty;
//写数据
if (nCount == 0 && nOffset == 0)
{
serialPort.WriteData(bytes);
}
else
{
serialPort.WriteData(bytes, nOffset, nCount);
}
}
catch (Exception ex)
{
if (serialPort != null && serialPort.IsOpen) //关闭端口
{
serialPort.ClosePort();
}
dictionarySerialPort.Remove(strCom);
serialPort = null;
}
finally
{
if (serialPort != null)
{
if (serialPort.IsOpen == true)
{
serialPort.ClosePort();
}
}
serialPort = null;
}
});
SendCmdToControllerThread.IsBackground = true;
SendCmdToControllerThread.Start();
//根据命令与底层控制器之间的繁忙时间，适当增加延时,一般不用
ReceiveDataTimeOut(bytes);
//回读数据超时，已经等到数据，返回
if (string.Empty == readstring)
{
return(null);
}
PrintLog.LogText(string.Format("{0} Receive :{1}", strCom, readstring));
}
}
catch (System.ArgumentNullException ex)
{
PrintLog.LogText(string.Format("{0} Receive Error: ArgumentNullException", strCom));
return(null);
}
catch (Exception e)
{
PrintLog.LogText(string.Format("{0} Receive Error: Exception", strCom));
return(null);
}
return(readstring);
}