[hpsdr] Call for Comments and Discussion - OzyII

[Phil Harman]

Hi Larry,

One PHY that looks like is good candidate is the Micrel KSZ9021RL.

This will run at 10/100/1000T so we can test at all of these speeds.

Micrel sells an evaluation board for the chip that could be interfaced to 
the 20 pin IDC header on either the Ozy board or Mercury board.  This would 
enable the chip to be evaluated and FPGA code developed prior to Ozy11 PCB 
development.

This should both increase the development speed and reduce the project risk.

73's Phil...VK6APH


----- Original Message ----- 
From: "Larry Gadallah" <lgadallah at gmail.com>
To: <hpsdr at openhpsdr.org>
Sent: Friday, July 31, 2009 11:40 PM
Subject: Re: [hpsdr] Call for Comments and Discussion - OzyII


> ***** High Performance Software Defined Radio Discussion List *****
>
> 2009/7/30 alex <ajbr at btconnect.com>:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> verilog is modular i think.
>>
>> wasn't the whole idea of pluging a merc into the chip supposed to be a 
>> test
>> for ozy2. like when merc was developed as an ozy with an adc added, this 
>> is
>> a merc with an interface added
>
> Part of the incentive to glue an Ethernet PHY onto a Mercury is that
> you can then also create a standalone receiver (very much like Phil
> Covington's QS1R) and not have to deal with Atlas, Ozy, etc.
> Coincidentally it would prove to be a nice proof-of-concept for OzyII.
>
> Thinking about it more, I wonder if there's a suitable 100 Mbps
> Ethernet PHY that would be easier to work with, given what I've heard
> about NDAs and GigE interfaces? Breaking the work down a little more,
> it seems to me that getting a 100 Mbps Ethernet interface to work
> would provide most of the framework required to support a GigE PHY,
> if/when one is finally selected. Since 100 Mbps Ethernet is so
> ubiquitous now, I'd assume there wouldn't be any issues with NDAs and
> such.
>
>>
>> also, emailing phil harman and hpsdr, then phil will get the email twice, 
>> i
>> find that that can be quite annoying but that might just be me
>>
>
> Sorry. My bad, I'll try to be more careful in the future. Don't want
> to annoy the net.gods.
>
> Cheers,
> -- 
> Larry Gadallah, VE6VQ/W7                          lgadallah AT gmail DOT 
> com
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