On Sat, Sep 11, 2010 at 2:12 PM, Peter G. Viscarola <pete...@osr.com> wrote:

> >
> > It does support isochronous streaming transfers,
> > something that  Flex is just now trying to get going on USB. I
> >
>
> USB inherently supports isochronous transfers.


OK, that is news to me. I thought that USB was a single-master, asynchronous
transfer bus, and that all transfers had to be originated by the master.


> I have personally written Windows USB drivers that support isochronous
> endpoints.  It's not difficult.  The driver and the device firmware make ALL
> the difference.
>
> At THIS point, neither USB NOR 1394 would be the best choice, IMNSHO.  The
> best choice would be Gigabit Ethernet.  Oh, by the way:  Even THEN you'll
> have to be concerned about DPCs and latency...
>

And I agree, Gig-E is preferred over either USB or Firewire.

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
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(+1.931.4.WB6RQN)
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