I just got an ICD 2 clone. Prior to using it the first time, I was reading
the advisory at the following URL. 

http://ww1.microchip.com/downloads/en/DeviceDoc/ICD2_Advisory_51566a.pdf 

I don't understand the need to have the system interface floating when
programming a non-isolated AC-powered target device. I assume by
"non-isolated," they mean the target device's ground is an earth ground. The
PC should be connected to the same earth ground. It seems to me that if the
system, programmer, and target device are all referenced to the same ground,
everything should be okay. 

What am I missing? 

Thanks for any information!

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist