Nathan House wrote:
> Yes, the board is self powered, so I left the USB Vdd pin unconnected.

I might be mistaken, but I was always under the impression that the USB
power pin is not just about power -- it's also important for initializing
a connection. Isn't that one reason that the power/ground pins are longer
than the data pins in the connector? Every chip that supports USB that I've
worked with so far has a pin dedicated to USB power sensing. Isn't that tru=
e
of PICs? Also, I always connect the data-line pullup resistor(s) (for initi=
al
speed sensing) to USB power.

-- Dave Tweed
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