Hi,
  I've just ordered a pair of PIC18F4550s and I've realised that I don't know
the first thing about interfacing with the USB bus... (a bit silly to order
the chips before learning about the hardware, but that's me in a nutshell -
"a bit silly").

  Does anyone know of any decent tutorials on USB, how it works and how it
can be used with the newer USB PICs?

  I eventually want to throw together a USB-to-GPIB bridge for my laptop.
I've seen the one that was published in EDN, but I want to do away with the
FTDI chip and hopefully speed up the interface as well.

Thanks.
-- 
Phil.                         | Kitsune: Acorn RiscPC SA202 64M+6G ViewFinder
philpem@dsl.pipex.com         | Cheetah: Athlon64 3200+ A8VDeluxeV2 512M+100G
http://www.philpem.me.uk/     | Tiger: Toshiba SatPro4600 Celeron700 256M+40G
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