Hi,

This error has been replicated on 3 laptop pcs running windows xp sp 2.  Any help would be appreciated

Arduino is working fine with COM7 and is sending data back when checked with arduino ide.

when connected to processing 1.35 with the following program:

--------
import processing.serial.*;

String portname = "COM7"; // Change to your port
Serial port;  // Create object from Serial class

int val=100;  // Data received from the serial port, with an initial value

void setup()
{
 // Open the port the board is connected to
 port = new Serial(this, portname, 19200);
 
 colorMode(HSB, 255);
 size(400, 400);
 ellipseMode(CENTER);   // draw from center out
 noStroke();
 frameRate(30);
 smooth();
}

void draw()
{
 if (port.available() > 0) {  // If data is available,
   val = port.read();         // read it and store it in val
 }
 background(99);
 // Draw the shape
 fill(val,255,255);  // we're in HSB mode, so first value is color
 ellipse(width/2, height/2, 250,250);
}

--------

The following error is produced:

Stable Library

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

Native lib Version = RXTX-2.1-7

Java lib Version   = RXTX-2.1-7


gnu.io.PortInUseException: Unknown Application
at gnu.io.CommPortIdentifier.open(CommPortIdentifier.java:354)

or a more verbose version of this error is produced:

gnu.io.PortInUseException: Unknown Application
at gnu.io.CommPortIdentifier.open(CommPortIdentifier.java:354)
java.lang.RuntimeException: Error inside Serial.<init>()
at processing.serial.Serial.errorMessage(Serial.java:583)
at processing.serial.Serial.<init>(Serial.java:148)
at processing.serial.Serial.<init>(Serial.java:102)
at Temporary_6315_8225.setup(Temporary_6315_8225.java:20)
at processing.core.PApplet.handleDisplay(PApplet.java:1390)
at processing.core.PGraphics.requestDisplay(PGraphics.java:690)
at processing.core.PApplet.run(PApplet.java:1562)
at java.lang.Thread.run(Unknown Source)

----------------------------

same exact program works fine on apple computers when correct com port info is inserted.  HELP!!!

Thanks in advance.  

Sincerely,

John