I know for a commercial product this would be considered a hack, but why not use the new 36 bit SRAM and ignore the extra bits?
or conversely use the new chip and create a riser card for it?
just a thought...
Justin
Message: 12
Date: Fri, 14 Jan 2011 12:55:33 -0800
From: Matt Ettus <address@hidden>
Subject: Re: [Discuss-gnuradio] why USRP2 End-Of-Life (EOL) in March
2011? UHD-only?
To: Steve Mcmahon <address@hidden>
Cc: GNR <address@hidden>
Message-ID: <address@hidden>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 01/14/2011 12:40 PM, Steve Mcmahon wrote:
> Hello:
>
> Why is the USRP2 is going End-Of-Life (EOL) in March 2011? My
> understanding is that one of the parts will soon become unavailable.
> Which part is it?
The SRAM
> I'm just curious, but wouldn't it have been easier to just design
> around the obsoleted part, or find a drop-in replacement, rather than
> design an all-new USRP N210?
If there was a drop in replacement, we'd be using it. The replacement
part is 36 bits wide instead of 18, which necessitates an FPGA with more
pins.
> That said, the N210 looks really nice. Will it support the raw
> Ethernet interface currently used in the USRP2, or will it require
> the new UHD interface?
It requires the UHD. All of our new products going forward will require
UHD, like DBSRX2, TVRX2, USRP N200, USRP N210, USRP E100, USRP E110.