I'm trying to get iCommand working now for severall weeks. I did install
iCommand severall times through with the use of the enclosed readme.txt.
Also I tried the installing with help of de pdf:
http://www.juanantonio.info/p_research/robotics/p_lejos/docs/icommand0.5.pdf
I use Eclipse Version: 3.2.1 under Windows XP.
I wrote a simple test program (see below) to test the communication between
NXT and my PC.
I can't get it working. I inserted debug println information in my program
to see where it goes wrong. This is the errror I keep gettting:
1. Start
2. Before aanspreken NXT
24216257
3. After aanspreken NXT
Looking for 'icommand.properties' in working dir: D:\Projecten\ArmTik
NXTCOMM = COM6
Stable Library
=========================================
Native lib Version = RXTX-2.1-7
Java lib Version = RXTX-2.1-7
gnu.io.PortInUseException: Unknown Application
Error while connecting NXTCommand() constructor
Error in aanspreken NXT object: null [Ljava.lang.StackTraceElement;@30c221
5. Before close in exception
at gnu.io.CommPortIdentifier.open(CommPortIdentifier.java:354)
at icommand.nxtcomm.NXTComm.open(Unknown Source)
at icommand.nxtcomm.NXTCommand.<clinit>(Unknown Source)
at icommand.platform.nxt.NXT.getBrickName(Unknown Source)
at ArmTik.ArmTik.main(ArmTik.java:19)
java.lang.NullPointerException
at icommand.nxtcomm.NXTComm.close(Unknown Source)
at icommand.nxtcomm.NXTCommand.close(Unknown Source)
at ArmTik.ArmTik.main(ArmTik.java:26)
Exception in thread "main"
The error is on getBrickName()
Is there somebody how know's what I am doing wrong? Thanks for any help.
Greatings
Soj Amarag
------------------- My test program.
--------------------------------------------
package ArmTik;
import icommand.platform.nxt.*;
import icommand.nxtcomm.*;
public class ArmTik {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("1. Start");
String sName = "";
try {
System.out.println("2. Before aanspreken NXT");
NXT oNxt = new NXT();
System.out.println(oNxt.hashCode());
System.out.println("3. After aanspreken NXT");
sName = oNxt.getBrickName();
System.out.println("4. After getBrickName");
} catch (Exception e) {
System.out.println("Error in aanspreken NXT object: " +
e.getMessage() +
" "
+ e.getStackTrace());
System.out.println("5. Before close in exception");
NXTCommand.close();
System.out.println("6. After close in exception");
}
System.out.println(sName);
System.out.println("7. Before close");
NXTCommand.close();
System.out.println("8. After close");
}
}
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