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Re: [Discuss-gnuradio] Yet another uhd_find_devices does not find usrp2


From: Jim Simpson
Subject: Re: [Discuss-gnuradio] Yet another uhd_find_devices does not find usrp2 and no ping from 192.168.10.2
Date: Wed, 13 Jul 2011 17:55:29 -0400

Actually, I'm thinking that I might need to find another SD card reader.

Looks like I could use the --list option in the non-GUI version to filter to small size drives.

Right now I don't even see the card in Disk Utility.

Thanks,
Jim


On Wed, Jul 13, 2011 at 5:51 PM, Jim Simpson <address@hidden> wrote:
Thanks. That makes sense.

When I call usrp2_card_burner_gui.py it only finds one device "/dev/sda2"
I'm pretty sure that that is where windows resides. 

Is there any way to force the GUI to find the SD card?
Is there any way to confirm that what it finds is the SD card?

Thanks!
Jim





On Wed, Jul 13, 2011 at 5:30 PM, Marcus D. Leech <address@hidden> wrote:
On 07/13/2011 05:18 PM, Jim Simpson wrote:
> Hi All,
>
> uhd_find_devices returns No UHD Devices Found.
>
> I do not get a ping back from 192.168.10.2 either.
>
>
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
The stock firmware on the USRP2 (which was released prior to the
invention of UHD), doesn't
 support UHD.  You'll have to burn the appropriate image into the USRP2
for it to support UHD.
 The UHD "wire protocol" has undergone several revisions in the last
year as well, so it's good to
 have your USRP2 firmware match the host-side software.  Further, the
stock USRP2 firmware
 doesn't have an IP stack at all--it used so-called "raw ethernet"
frames for communications, so it's
 not able to respond to pings, which use the ICMP ECHO (part of IP)
protocol.

You'll find that the build-gnuradio script will have installed firmware
images in:

/usr/local/share/uhd/images

And you can use /usr/local/share/uhd/utils/usrp2_card_burner_gui.py to
place new firmware and FPGA
 images onto your USRP2 SD card.



--
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org



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