I'm working on a small project at present that will use the USB=20
capabilities of an 18F14K50.  Now, on this PIC, the D+ & D- pins are=20
also the PGC & PGD pins.

I imagine that normally this is not a problem, as you would only be=20
using the ICSP function while the USB port is not physically connected=20
to a host.

This design is a little different, as the PIC is hard wired to a USB hub=20
chip (downstream port) on the same board.  I can see the potential for=20
conflict.

I was thinking that I might just have to add a pair of disconnect=20
jumpers between the USD hub chip and the PIC's D+ & D- pins, leaving=20
them open during programming.  Has anyone done something like this before?
David...

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___________________________________________
David Duffy        Audio Visual Devices P/L
Unit 8, 10 Hook St, Capalaba 4157 Australia
Ph: +61 7 38235717      Fax: +61 7 38234717
Our Web Site: www.audiovisualdevices.com.au
___________________________________________

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