Hi. I have a new Arduino Uno board and can't seem to finish communication with it. I am using MPIDE 0150 on an Win XP OS.
I have never been able to get any code, including sketches found in the Examples (Blink, etc.), to verify or upload to this board. It seems to progress about 30% of the way but then just hangs and I never get a message that the verification or upload is complete. I have verified that I have selected the correct board (Arduino Uno) and port (COM7). I have plugged an LED between pin 13 and Gnd to see if a Bootloader is on the chip (it is since the LED blinked). When I plug the board into a USB port the area of the board labeled "ON' is on with a green LED. I also see a blinking yellow LED next to "L" which is adjacent to the TX and RX LED's.
Contrary to the problems I am experiencing with this board I have successfully used the same MPIDE to verify and upload sketches to a chipKit uno32 board without this problem.
The messages that I get are:
java.lang.NullPointerException
at processing.app.debug.Compiler.compileLink(Compiler.java:705)
at processing.app.debug.Compiler.compile(Compiler.java:229)
at processing.app.Sketch.build(Sketch.java:1588)
at processing.app.Sketch.exportApplet(Sketch.java:1628)
at processing.app.Sketch.exportApplet(Sketch.java:1597)
at processing.app.Editor$DefaultExportHandler.run(Editor.java:2334)
at java.lang.Thread.run(Thread.java:619)
Searches on similar problems seem to focus on the actual code being verified or uploaded but since I can't even verify or upload an Example sketch I think there is something else that is amiss. Any help is appreciated.
Thanks.