Dear all:

I have several questions regarding the problems I am struggling with when 
working with imote2.

1. Uploading programs to imote2 using USB (I don't have JTAG cable) 
I installed cygwin and tinyos1.x in WindowsXP, and was able to build 
nesC programs successfully. The problem occurs when I try to upload the program 
toimote2 using USBLoaderHost, there are always error messages:


"Device not detected
Device not connected to USB. Retry"

At this time, the imote2 was connected to PC via USB, and was recognizable 
as Crowbow Imote2 in the Device Manager. I tried to reset several times, but 
still
the same error message as above.

2. How to reset an imote2 to manufactured configuration, as some of the motes 
have no interaction with PC USB ports?

3. Why the motes do not work when attached to USB port hub with full power 
supply, although they work well on battery board?

I would really appreciate your help.

Thank you and I look forward to hearing from you.

Charlie 
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