> I am working on my first USB/PIC project.  I have the PICDEM FSUSB demo
> board and have also built my own PCB.  I am trying to get the
> keyboard/mouse demo from microchip working.  This is the one that moves
> the mouse in a circle while sending "abcd" continuously.  It works on
> the demo board but not on mine.
you should NOT be connecting VUSB to VBUS and by doing so you may well have blown the chip,

normally the only thing that should be connected to Vusb is a 220nf capacitor to ground (unless you disable the internal 3.3V regulator).





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