串口驱动

喜欢ヅ旅行 2022-08-27 12:38 209阅读 0赞

\[code=Java\]  
    //初始化串口驱动  
        private   boolean   initCommDriver\_win32()   \{        
        try   \{  
        System.loadLibrary( "win32com ");      
        String   driverName   =   "com.sun.comm.Win32Driver ";        
        CommDriver   driver   =   (CommDriver)   Class.forName(driverName).newInstance();        
        driver.initialize();          
        return   true;        
                \}catch   (Throwable   e)   \{    
                MessageDialog.openInformation(null,   "initDriver ",   "initDriver\_Err\_Win32Com ");  
                e.printStackTrace();    
                return   false;        
                \}  
        \}  
        //打开串口  
        private   boolean   OpenComm(String   PortName)  
        \{  
  //获取指定的COM端口        
        try   \{  
portIdentifier   =   CommPortIdentifier.getPortIdentifier(PortName);  
\}   catch   (NoSuchPortException   e)   \{  
e.printStackTrace();  
return   false;  
\}  
//打开端口(3秒打不开则失败)  
try   \{  
serialPort   =   (SerialPort)portIdentifier.open(this.getTitle(),3000);  
\}   catch   (PortInUseException   e)   \{  
MessageDialog.openInformation(null,   "OpenComm ", "Open\_Err ");  
e.printStackTrace();  
return   false;  
\}  
                //设置端口通讯参数   （波特率   ＝   9600，数据位   ＝   8，停止位   ＝   1   ，校验位   ＝奇校验）  
                try   \{  
                        serialPort.setSerialPortParams(9600,  
                                SerialPort.DATABITS\_8,  
                                SerialPort.STOPBITS\_1,  
                                SerialPort.PARITY\_ODD);  
                \}   catch   (UnsupportedCommOperationException   e)    
                \{  
                MessageDialog.openInformation(null,   "OpenComm ", "Set\_Port ");  
                e.printStackTrace();  
                return   false;  
                \}  
//设置输入流  
                try   \{  
                        inputStream   =   serialPort.getInputStream();  
                \}   catch   (IOException   e)   \{  
                MessageDialog.openInformation(null,   "OpenComm ", "Set\_InputStream ");  
                e.printStackTrace();  
                return   false;  
                \}  
                //设置输出流  
                try   \{  
outputStream   =   serialPort.getOutputStream();  
\}   catch   (IOException   e)   \{  
                MessageDialog.openInformation(null,   "OpenComm ", "Set\_OutputStream ");  
                e.printStackTrace();  
                return   false;  
\}  
                //当串口有数据时通知        
                serialPort.notifyOnDataAvailable(true);          
                //当串口通讯中断时通知          
                serialPort.notifyOnBreakInterrupt(true);    
                //接收数据超时设置  
                try   \{  
serialPort.enableReceiveTimeout(30);  
\}   catch   (UnsupportedCommOperationException   e)   \{  
e.printStackTrace();  
return   false;  
\}  
//设置一个串口数据暂存区  
strBuffer=new   StringBuffer();  
                //给当前串口添加一个监听器   DisposeSerialportMessage  
try   \{  
serialPort.addEventListener(  
new   SerialPortEventListener()  
\{          
                public   void   serialEvent(SerialPortEvent   e)  
                \{    
                disposeSerialportMessage(e);  
                \}  
        \}  
);  
\}   catch   (TooManyListenersException   e)   \{  
e.printStackTrace();  
return   false;  
\}

return   true;  
        \}  
\[/code\]