Re: [Sdcc-user] USB protocol stack for 8051 ?

[Robin R. <rob...@gm...>]

Greetings and thanks everyone.

I realise that implementing the USB standard would be overkill.
What I basically want to do is use some existing implementation.
I went through the 8051 USB firmware provided by Philips for use with the 
PDIUSBD12 controller, the idea being to hack it and use it somehow.

I still have a basic problem:
I need to interface with the HP 3325 USB Printer. I, in my finite wisdom, am 
assuming that each USB printer would use a transaction based scheme that 
would be different for each printer.

How then am I supposed to handhsake and communicate with this printer ?
Would I need to hack / examine the existing Windoze/Linux drivers for this 
printer ?

Any help would be appreciated as usual.
Thanks.

Robin.