Hi,
Now it is clear enough that the XCVR2450 is not full duplex.
The question I asked in my first post in the case it is not full duplex is
still unknown for me.
How long does it take to the board to switch from transmission mode to
reception mode?
In the data sheet I can read a picture called "
Ha, just kidding about the 'hating computers' (sort of) - I am using the USRP
as part of my Comp. Engineering MS thesis, I am apparently just not a linux
guru yet. Yes, aggravation would adequately describe my feelings of setting
up software under linux.
-Jeff
Marcus D. Leech wrote:
>
> On 10
Hi all,
gnuplot_freqz.py test gives error
Traceback (most recent call last):
File "./gnuplot_freqz.py", line 81, in
handle = test_plot ()
File "./gnuplot_freqz.py", line 78, in test_plot
return gnuplot_freqz (freqz (taps, 1), sample_rate)
File "/usr/lib64/python2.6/site-packages/gn
On 10/12/2010 09:34 PM, jefftk wrote:
> Ah well it is working now, I restarted the computer yes, I tried that at
> least once before posting my message : ) ...
> I hate computers
>
> I had followed the http://gnuradio.org/redmine/wiki/1/UbuntuInstall for
> setting up the usrp group an
Ah well it is working now, I restarted the computer yes, I tried that at
least once before posting my message : ) ...
I hate computers
I had followed the http://gnuradio.org/redmine/wiki/1/UbuntuInstall for
setting up the usrp group and udev at some point, probably just before my
last
On 10/12/2010 08:49 PM, jefftk wrote:
> I just received a new USRP & WBX board for a research project I am working
> on. I have installed GNURadio from source from the tar package:
> http://ftp.gnu.org/gnu/gnuradio/gnuradio-3.3.0.tar.gz, on Ubuntu 10.04,
> amd64
>
> I am having problems connecting/
I just received a new USRP & WBX board for a research project I am working
on. I have installed GNURadio from source from the tar package:
http://ftp.gnu.org/gnu/gnuradio/gnuradio-3.3.0.tar.gz, on Ubuntu 10.04,
amd64
I am having problems connecting/finding the USRP:
running "usrp_probe" or "usrpe
On 10/12/2010 06:56 PM, Josh Blum wrote:
> Peak hold is essentially doubling the number of vertexes to draw. If
> you double the number of bins, do you get the same behavior?
>
> You may increase performance by dropping the frame rate to lowering
> the number of bins.
>
> -Josh
>
So, curiously enou
On 10/12/2010 07:33 PM, Matt Ettus wrote:
>
>
> NO. The XCVR2450 is NOT full duplex. I have never said anything
> different. The XCV2450 is NOT full duplex. Never was. Never will be.
>
> Matt
>
>
Well, then.
Jason and I then were both confused. I thought it was full-duplex but
with the
Hi,
3.3.0 stable doesn't compile under openSUSE 11.3 with gcc 4.5.0. But
installing gcc43 and gcc43-c++ (and using them... just set the
appropriate environment variables) did the job for me.
The last time I compiled the git branch under openSUSE was 2 months
ago. At this time, gcc45 didn't work f
On 10/12/2010 03:33 PM, Marcus D. Leech wrote:
On 10/12/2010 06:05 PM, Jason Abele wrote:
Ok, digging deeper into the max2829 datasheet, I stand corrected. The
XCVR can not do full-duplex operation. My apologies for the
confusion, our daughterboard app-notes will be updated shortly to
reflect
On 10/12/2010 06:56 PM, Josh Blum wrote:
> Peak hold is essentially doubling the number of vertexes to draw. If
> you double the number of bins, do you get the same behavior?
>
> You may increase performance by dropping the frame rate to lowering
> the number of bins.
>
> -Josh
>
Yup, doubling the
Peak hold is essentially doubling the number of vertexes to draw. If you
double the number of bins, do you get the same behavior?
You may increase performance by dropping the frame rate to lowering the
number of bins.
-Josh
On 10/12/2010 01:31 PM, Marcus D. Leech wrote:
I have an Atom D-510
On 10/12/2010 06:05 PM, Jason Abele wrote:
> Ok, digging deeper into the max2829 datasheet, I stand corrected. The
> XCVR can not do full-duplex operation. My apologies for the
> confusion, our daughterboard app-notes will be updated shortly to
> reflect this correction. The RFX2400 is full-dupl
With the -s option on, what is the byte ordering of the output? eg is a
sample 0xABCD being written as 0xCD, 0xAB, or 0xAB, 0xCD?
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sorry, there is no such call.
You can manipulate the registers for the clock generator here:
http://code.ettus.com/redmine/ettus/projects/uhd/repository/revisions/master/entry/host/lib/usrp/usrp2/clock_ctrl.cpp
-josh
On 10/12/2010 05:30 AM, 周亮 wrote:
Hi,
I want to test the clock of USRP2 wi
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 t
On 10/12/2010 05:14 PM, Eric Blossom wrote:
> Yes, I've seen this.
>
> Eric
>
>
>
Any speculation about why this is?
If you look at the code, it uses numpy.maximum(a,b) to compute the max
function over the vector. But unless numpy.maximum()
is implemented in a completely-stupid way, I can't
On Mon, Oct 11, 2010 at 11:05 AM, Jason Abele wrote:
> On Mon, Oct 11, 2010 at 10:34 AM, Jorge Miguel wrote:
>> My simple questions are:
>> Does XCVR2450 work in full duplex mode?
>
> Yes, although with one synthesizer, it will be on the same frequency
> for rx and tx
>
Ok, digging deeper into t
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 firmwa
On Tue, Oct 12, 2010 at 04:31:38PM -0400, Marcus D. Leech wrote:
> I have an Atom D-510 running Fedora 12, and the latest UHD+GnuRadio (as
> of this morning).
>
> I've noticed that if I turn on "Peak Hold" in the FFT display, the
> entire input side of the GUI becomes
> unresponsive to input, ev
Hello all,
I did some test when transmitting and receiving a pulse. After seeing the
transmitted and received signal on a single oscilloscope (in GRC).
Flowgraph:
Vector source - Oscilloscope A - Rational resampler - USRP2 sink (500
interpolation)
USRP2 source (500 decimation) - Rational resample
I have an Atom D-510 running Fedora 12, and the latest UHD+GnuRadio (as
of this morning).
I've noticed that if I turn on "Peak Hold" in the FFT display, the
entire input side of the GUI becomes
unresponsive to input, even for low input bandwidths, where the CPU
usage is quite low.
Anyone else s
On 10/12/2010 12:40 PM, praphul chandra wrote:
> /*audio_alsa_sink[hw:0,0]: Device or resource busy*/
That should be the dead giveaway. Something else is using the audio
device. Do you have a browser up that was recently
using Youtube, for example?
--
Marcus Leech
Principal Investigator
Shi
Dear All,
I am trying my hands at GNU Radio on Ubuntu 10.1. I have been successful in
installing GNU but am not able to use Audio sink in GRC. The error message
is:
*audio_alsa_sink[hw:0,0]: Device or resource busy
Traceback (most recent call last):
File "/home/praphul/top_block.py", line 42, i
On 10/12/2010 12:04 PM, Steve Mcmahon wrote:
I am trying to compile GNU Radio 3.3.0 under openSuse 11.3, which uses gcc
4.5.0. I have all the dependencies built and resolved, but when I compile GNU
Radio 3.3.0, I get errors. It seems that GNU Radio does not compile
successfully with the new gc
I am trying to compile GNU Radio 3.3.0 under openSuse 11.3, which uses gcc
4.5.0. I have all the dependencies built and resolved, but when I compile GNU
Radio 3.3.0, I get errors. It seems that GNU Radio does not compile
successfully with the new gcc 4.5.0, although I know it compiles with gcc 4
On Tue, Oct 12, 2010 at 10:16:31AM -0400, Steven Clark wrote:
> Hi-
>
> Is it possible to receive simultaneously from 1 WBX card, and 1 BasicRX
> card, on the same USRP1? Attempting this with GRC gives:
> "Cannot compute dual mux when mixing quadrature and non-quadrature
> subdevices"
>
> I under
Hi-
Is it possible to receive simultaneously from 1 WBX card, and 1 BasicRX
card, on the same USRP1? Attempting this with GRC gives:
"Cannot compute dual mux when mixing quadrature and non-quadrature
subdevices"
I understand that the WBX is quadrature while the BasicRX is not, so this
should requ
Hi, all:
I retry firmware-update today.
When I use another SD-card r/w, I could update!!
Now, my USRP2+WBX work very well!!
At last week, SD-card r/w is bad.
That is very old device.
Thank you for your advice.
(2010/10/10 15:17), YouheiFujii wrote:
Dear John and all:
Thank you for your adv
Hello all
I am unable to run ucla zigbee phy library examples, I have installed
gnuradio 3.3.0 with the library linked and the error it is giving is like
that
Traceback (most recent call last):
File "./cc1k_rxtest.py", line 44, in
from gnuradio import usrp
File "/usr/lib/python2.6/dist-packag
Hi,
I want to test the clock of USRP2 with UHD. Is there UHD function replaces
original function "clocks_enable_test_clk()"?
Thank you for your help!
Liang
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Dear all,
I am trying to understand why my Lissajous plot between two cosine signals
is not stable.
I transmit a cosine signal with the basic tx. I receive the signal with the
basic rx. Interpolation and decimation rates are 500 in both cases.
What I get is an ellipse (that means that frequency
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