Re: [Discuss-gnuradio] Re: About EEPROM and FX2(68013a) USB interfacein USRP

[Jeff Brower]

Catalin-

> On Mon, Apr 12, 2010 at 12:00 PM,  <address@hidden> wrote:
>> Date: Mon, 12 Apr 2010 16:02:43 +0800
>> From: Liang Xin Áºê¿ <address@hidden>
>> Subject: [Discuss-gnuradio] About EEPROM and FX2(68013a) USB interface
>>        in      USRP
>> To: address@hidden
>> Message-ID:
>>        <address@hidden>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi All
>>
>> I am developing a board with gnuradio which is like USRP. It is also use
>> FX2LP(CY7C68013a) and AD9862, and I add some surroundings.
>>
>> I hope that my board can work well with gnuradio, but it seems like it can
>> only support USRP now.  So could you please give me some help, if I want to
>> run gnuradio on my board. How should I do with it?
> ThinkRF (www.thinkrf.com) is also developing GNU Radio compatibility
> for its product. I have been working on this project for a few months.
> We're interested in feedback on the approach we took.
>
> Our board is also an unconfigured Cypress FX2 on power-up, so we will
> have a proprietary utility that changes the personality of the board.
> Once that is done, the board "looks" like a USRP, presenting the
> corresponding VID/PID and responding to the USRP USB protocol.
>
> We chose to have it show up as a USRP "rev 5" to distinguish it from a
> real USRP, of which I believe the latest revision is 4. Is this likely
> to conflict any time soon?

My suggestion would be to use 4.x and work out with Matt what the x should 
be... for example you might use 4.6 if Matt
says that he's likely to jump a major rev number before he moves the minors to 
4.5  This would give the advantage of
"marking" your board with a more-or-less accurate time-frame and capabilities 
range.

-Jeff