Re: USRP testing plesae help

GNU Radio
1

You may have a version mismatch between the installed python modules in
lib and installed python scripts in bin. Either that, or its a very old
bug. Whatever the case, I recommend you nuke your gr install(s) and grab
a recent release.

First of all bundle of thanks. Last post did help me alot.
I installed a fresh gnruadio 3.4.0. Connected the USRP1 and usrp_probe
ran
successfully.
Both the boards were detected. :slight_smile:

When I tried to connect DBSRX2 to RXB or RXA the it wasn’t detected. I
mean
when I ran usrp_probe the model shown was ‘unkown’ and frequency range
was
from -9000000.0 to 9.000000. Any help what I need to do in order to
check
the DBSRX2 ?

  1. Also I got N210. How can I test it. Please help.

Waiting for a quick response as I am worried. Any help in this regards
is highly appreciated.

What do you want to test? If you want connectivity, install UHD and the
command uhd_usrp_probe will tell you all the USRP devices connected to
your pc: http://code.ettus.com/redmine/ettus/projects/uhd/wiki

If you want to test signal integrity, configure gnuradio with gr-uhd
support. There is a very basic signal generator and analyzer display
that comes with the component. uhd_siggen_gui.py uhd_fft.py I believe.
Or make a quick flowgraph in gnuradio-companion :slight_smile:

I downloaded UHD from link above, then I did following.
cd UHD.
cd host
mkdir build
cd build
cmake …/
make
make install
ldconfig

But then when I ran uhd_find_devices I got following output:
“Ignoring discovered device RuntimeError: Expected protocol
compatibility
number 9, but got 7: The firware build is not compatible with the host
code
build.
No UHD Devices Found”
Lights D and F are on the N210. No other lights.
Another question what is minimum speed required for LAN(Etherenet)
interface on PC ? 100Mbps or 1000Mbps ?

Regards,
Smith

2

On Sat, Jan 14, 2012 at 05:33:17PM +0500, smith mark wrote:

I downloaded UHD from link above, then I did following.
cd UHD.
cd host
mkdir build
cd build
cmake …/
make
make install
ldconfig

You can install in userspace but then you need to be sure PYTHONPATH
and maybe LD_LIBRARY_PATH are pointing to your install. Most users
do ‘sudo make install’ to install in /usr/local.

ldconfig will not find things in userspace and elf-ld can’t figure out
that a program in /something/bin might have libraries in /something/lib.

After you do cmake, the Makefile should be able to clean out old
stuff with ‘make uninstall’ and ‘make clean’ before the new make and
sudo make install.

–
LRK
gr-user . ovillatx.sytes.net

3

On 14/01/12 07:33 AM, smith mark wrote:

When I tried to connect DBSRX2 to RXB or RXA the it wasn’t detected. I
mean when I ran usrp_probe the model shown was ‘unkown’ and frequency
range was from -9000000.0 to 9.000000. Any help what I need to do in
order to check the DBSRX2 ?

DBSRX2 is only supported under UHD, not under the “classic” drivers. If
you run:

uhd_usrp_probe --args “type=usrp1”

You’ll find that it can cope with the DBSRX2 just fine. Since you’re a
new user of this gear, without any
necessity of backwards compatibility with older software, you should
be using UHD exclusively.

But then when I ran uhd_find_devices I got following output:
“Ignoring discovered device RuntimeError: Expected protocol
compatibility number 9, but got 7: The firware build is not compatible
with the host code build.
No UHD Devices Found”
Lights D and F are on the N210. No other lights.
Another question what is minimum speed required for LAN(Etherenet)
interface on PC ? 100Mbps or 1000Mbps ?

The ethernet-connected devices (USRP2, N2XX) require 1 GiGe–they won’t
work at any other rate.

Follow the instructions here to update your N2XX firmware:

http://files.ettus.com/uhd_docs/manual/html/usrp2.html#load-the-images-onto-the-on-board-flash-usrp-n-series-only

If you used the “build-gnuradio” script to build your Gnu Radio + UHD
installation, it will also have downloaded
the very latest master firmware, and placed it in
/usr/local/share/uhd/images.

You might also look at the overall UHD documentation here:

http://code.ettus.com/redmine/ettus/projects/uhd/wiki#Documentation

4

Thanks for the response, I did sudo make and sudo make install when I
was
installing the UHD. My UHD folder is in my home directory. Sorry, I am
not
getting you with your last post because I am not very good at Linux. Any
help further is highly appreciated.

Regards,
Smith