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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.
Eric