The usual format for the MOTECOM setting is something like
  export MOTECOM="ser...@com7:tmote"
where the last field specifies what kind of mote is used.
That might be what's causing the null pointer.
MS


Ricardo . wrote:
> Hello everyone,
> 
> I'm going to start programming in tinyos, and I am now interested in 
> knowing how to debug this kind of devices.
> I am working with the "ICradio stick 2.4", and I'm trying to run the 
> application TestSerial.
> 
> I can compile and flash .hex the mote, but when I try to run the java 
> application gives me an error NullPointerException.
> 
> I am working with the cygwin and tinyos-2.0.2-2. I am running the 
> application with the command $java TestSerial -comm COM3. I confirmed 
> that the mote is connected to COM3.
> 
> $ java TestSerial -comm ser...@com3
> Exception in thread "main" java.lang.NullPointerException
> at java.util.Hashtable.get(Unknown Source)
> at net.tinyos.packet.Platform.get(Platform.java:23)
> at net.tinyos.packet.BuildSource.decodeBaudrate(BuildSource.java:201)
> at net.tinyos.packet.BuildSource.makeArgsSerial(BuildSource.java:227)
> at net.tinyos.packet.BuildSource.makePacketSource(BuildSource.java:138)
> at net.tinyos.packet.BuildSource.makePhoenix(BuildSource.java:87)
> at TestSerial.main(TestSerial.java:97)
> 
> 
> Does anyone know the cause of the problem and/or how to solve it?
> 
> Thank you very much,
> 
> 
> ------------------------------------------------------------------------
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