yair reshef

not being happy with the serial object im trying a java alternative.

 a java comm object for serialparallel ports.

i am having problems with the calling the readSerial thread.

CommPortIdentifier portIdentifier = (CommPortIdentifier)

void connect ( String portName ) throws Exception

CommPortIdentifier.getPortIdentifier(portName);

portIdentifier.open(this.getClass().getName(),2000);

SerialPort serialPort = (SerialPort) commPort;

serialPort.setSerialPortParams(57600,SerialPort.DATABITS_8,SerialPort.STOPBITS_1,SerialPort.PARITY_NONE);

InputStream in = serialPort.getInputStream();

(new Thread(new SerialReader(in))).start();

post("Error: Only serial ports are handled by this

public class SerialReader implements Runnable

while ( ( len = this.in.read(buffer)) > -1 )

not being happy with the serial object im trying a java alternative.
i found http://www.rxtx.org/, a java comm object for serialparallel ports.
i am having problems with the calling the readSerial thread.

import gnu.io.CommPort;
import gnu.io.CommPortIdentifier;
import gnu.io.SerialPort;

import java.io.IOException;
import java.io.InputStream;

    public Rxtx()
    {
        super();
    }

    public void open(){
        try{
        post("connect...");
          (new Rxtx()).connect("COM4");

        }       catch ( Exception e )
        {
            e.printStackTrace();
        }
    }

    public void listPorts()
    {
        java.util.Enumeration portEnum =
CommPortIdentifier.getPortIdentifiers();
        while ( portEnum.hasMoreElements() )
        {
            CommPortIdentifier portIdentifier = (CommPortIdentifier)
portEnum.nextElement();
            post(portIdentifier.getName() );
        }
    }

    void connect ( String portName ) throws Exception
    {
        CommPortIdentifier portIdentifier =
CommPortIdentifier.getPortIdentifier(portName);
        if ( portIdentifier.isCurrentlyOwned() )
        {
            post("Error: Port is currently in use");
        }
        else
        {
            CommPort commPort =
portIdentifier.open(this.getClass().getName(),2000);

            if ( commPort instanceof SerialPort )
            {
                SerialPort serialPort = (SerialPort) commPort;

                InputStream in = serialPort.getInputStream();

                (new Thread(new SerialReader(in))).start();

            }
            else
            {
                post("Error: Only serial ports are handled by this
example.");
            }
        }
    }

    /** */
    public class SerialReader implements Runnable
    {
        InputStream in;

        public SerialReader ( InputStream in )
        {
            this.in = in;
        }

        public void run ()
        {
            byte[] buffer = new byte[1024];
            int len = -1;
            try
            {
                while ( ( len = this.in.read(buffer)) > -1 )
                {
                    outlet(0,new String(buffer,0,len));
                }
            }
            catch ( IOException e )
            {
                e.printStackTrace();
            }
        }
    }

rxtx-serial-object-alternative

Hi Yair,
Did you ever make any progress on this?
Thanks,
David


I think I may have RXTX working in MaxMSP in widndows at least. You need to copy the rxtxSerial.dll, librxtxSerial.so and librxtxSerial.jnilib into the Max 5.0/support/

I get the following dumped to the console

=========================================

which seems good. I haven't coded the bit that actually does anything yet, will report success/faliure.

Stable Library
=========================================
Native lib Version = RXTX-2.1-7
Java lib Version   = RXTX-2.1-7

which seems good. I haven't coded the bit that actually does anything yet, will report success/faliure.


Hi crx091081gb, is there anything to report on the rxtx port to max? I am in need of this and don't want to reinvent the wheel.

Rxtx - serial object alternative