What's the push button for?
Dave
----- Original Message ----
From: Matt Ettus<address@hidden>
To: Steve Mcmahon<address@hidden>
Cc: GNR<address@hidden>
Sent: Tue, 12 October, 2010 23:16:23
Subject: Re: [Discuss-gnuradio] differences between USRP2 rev 3 and rev 4 boards
On 10/12/2010 02:22 PM, Steve Mcmahon wrote:
I am wondering what are the differences between the USRP2 rev 3 board
and the rev 4 board?
I have one of each (one I ordered maybe a year ago and one I ordered
this past summer), and I don't see any differences on the board
itself. I understand that the versions of the FPGA image and the
firmware that shipped on the SD card from the factory would be
different, since over a year of time elapsed between my purchasing
the two boards. But what else is different? I can't find a changelog
for the USRP2 boards anywhere.
Some clocks were reorganized for layout reasons and the PPS input circuit was
modified to have a more consistent delay. The same FPGA image works for both.
Matt
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