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Re: [Discuss-gnuradio] The ultimate SDR (Ethernet v. gigabit)

From: Eric Blossom
Subject: Re: [Discuss-gnuradio] The ultimate SDR (Ethernet v. gigabit)
Date: Tue, 23 Oct 2001 12:19:11 -0700
User-agent: Mutt/1.2.5i

On Tue, Oct 23, 2001 at 11:31:47AM -0700, Ettus, Matt wrote:
> > 
> > Re Ethernet interfaces:  I suggest that the first version be built
> > with 100mbit FDX Ethernet, and that the follow-on design upgrade
> > to gigabit FDX Ethernet.  This will be a pretty straightforward
> > drop-in replacement at 10x the data rate, with the same software
> > interface, same packet formats, etc.
> I don't think computers of the next couple of years would be able to consume
> and process more than about 100 mbits/sec of data, so 100mbit is fine, I
> think.  

FWIW, I'm already eating 20M sample/sec with cycles to spare.
20M sample/sec * 16 bits/sample = 320 Mbit/sec.  The hardware and
driver I'm using DMAs it directly into user space, it's no big deal.

> Besides, I'd like the ethernet part to be the easy part of the design.

Understood.  Keep us posted.


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