The last multimode MAC/PHY I worked with required major upheaval to
support 10/100. Different clocks required and everything.
--
Principal Investigator
Shirleys Bay Radio
Astronomy Consortium
http://www.sbrac.org
On Oct 8, 2010, at 8:54 PM, Elvis Dowson <[email protected]> wrote:
Hi Marcus,
On Oct 9, 2010, at 4:44 AM, Marcus D. Leech wrote:
Not to be a wet-blanket or anything, but the USRP2 requires 1GiGe.
The
PHY/MAC isn't set up to negotiate 100Mbit. To support
USRP2, you need a 1GiGE interface. That's part of the reason I went
with the Sheeva Plug--it has 1GiGe. But it doesn't have floating
point :-(
I wasn't aware of that. Perhaps in this special case, the PHY/MAC
FPGA code could be reprogrammed to operate at 100Mbit, just to make
it work with the Overo?
If that is sufficient bandwidth would depend upon the application,
but it is an interesting experiment to try out.
I already got GNU Radio running on the Mac from sources. I also have
been working on the Gumstix Overo for about 2 years now with
OpenEmbedded, so it should be interesting just to port it across and
run it off the overo.
Elvis Dowson
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