Re: [Discuss-gnuradio] Firmware / FPGA bitstream for USRP2 Rev 4

[Matt Ettus]

On 02/11/2010 05:47 PM, Omid F wrote:
> Hi,
>
> I get a new Rev4 USRP2 two weeks ago, and have not yet been able to
> connect to it.
>
> I tried both the binary and the source code on different machines
> running different versions of Ubuntu (9.4, 9.10). I simply get "No USRP2
> found." when I call find_usrps.

Is there only one line of output that says No USRP2 found, or are there 
other lines of output?  Are you using a release of GNU Radio or a build 
from git?


> I have reached a point that I am almost certain there is something wrong
> on the USRP2 side. The LEDs look fine though (6 of them flash at
> startup, 2 remain on).

It is extremely unlikely that there is nothing wrong with your USRP2, as 
they are all 100% tested before shipping.  There are many other 
variables.  Is the USRP2 connected directly to the ethernet card?  Are 
you certain it is a gigabit ethernet card?  Can you send the output of 
dmesg after connecting the USRP2?  Do you have a TTL serial adapter?


> As a last resort, I tried to reprogram (a new) SD card. I followed the
> instructions on USRP2FAQ and copied txrx.bin and u2_rev3.bin on the new
> SD card. This time, even the LEDs don't light up, and of course I still
> cannot connect to the USRP2.

Then you did not copy the files correctly.  You'll need to follow the 
instructions again, as those instructions work.  If the LEDs don't light 
up, then the files are not on there and nothing will work.

> How do I know which version of firmware and FPGA bitstream I should use?
> Is there a u2_rev4.bin available (since my USRP2 is revision 4)?
> Any hints on what I might be doing wrong?

No, rev3 and rev4 use the same .bin files.

Matt