[hpsdr] Ozy with Gb Ethernet

[Eric Ellison]

Warren

 

I had been looking at this project on Sparkfun the other day while surfing
the FPGA experimenters sites thinking I would hawk the Ozy elsewhere than
ham radio as an FPGA development board.

 

Dunno if it is applicable. But thought it interesting from our project
standpoint.

 

http://www.fpga4fun.com/10BASE-T0.html

 

Thanks

Eric

 

 

  _____  

From: Warren Walsh [mailto:ninercats at gmail.com] 
Sent: Saturday, March 10, 2007 5:57 PM
To: Lyle Johnson
Cc: Eric Ellison; hpsdr list
Subject: Re: [hpsdr] Ozy with Gb Ethernet

 

Funny you should mention the Xilinx Virtex-4FX. I just finished this design
<http://www.pentek.com/products/Detail.cfm?Model=7142>  using the XC4VFX60
and the XC4VSX55. They are nice parts, but not cheap and are also BGA's. Now
with the Virtex-5's now coming out these should go down in price. 

I really think that a GbE card is overkill this design. A 10/100BT card
might be better using an ARM7 processor and could be done fairly easily, at
lower cost. I'll continue my research and welcome all input.

73
Warren - K2BM

On 3/10/07, Lyle Johnson <kk7p at wavecable.com> wrote:

> Why an Ozy... Well, in looking through the list archives, I found Lyle's
> message from February 11th calling for project leaders. He mentioned the
> Ozy with a Gb Ethernet controller. If there is a better/different idea, 
> I'm open.

Part of the idea is to be free from a local PC and free from USB.  We'll
probably need the FPGA fabric since a configuration with this board
probably wouldn't have an Ozy. I didn't mean to restrict it to the same 
I/O configuration as Ozy (e.g., a port designed to drive an SDR-1000).

> One thing about a Gb Ethernet board, it's not going to be simple.

If a Xilinx Virtex-4FX were used as the core processor and FPGA, 
reference designs exist with 1 Gbps Ethernet. I suspect one of these
could be leveraged (e.g., Avnet's DS-KIT-4VFX12LC at http://em.avnet.com).

Of course, the PowerPC cores in the Virtex won't run WindowsVista, but 
might run MontaVista :-)

Neither simple nor cheap, but perhaps interesting?

73,

Lyle KK7P

 

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