: Tuesday, 11 May 2010 11:14 AM
To: Eric Blossom
Cc: discuss-gnuradio@gnu.org
Subject: RE: [Discuss-gnuradio] Unexplained out-of-sequence packets...
Thanks Eric
I checked the power management preferences and couldn't see anything
about CPU throttling, though I did verify it would never go to sleep
On Wed, May 12, 2010 at 11:42:55AM -0700, David Barton wrote:
Thanks Eric.
So the packet encoder samples /symbol does not affect the bit rate but just
needs to match the dpsk samples/ symbol rate?
Dave
Right.
Eric
___
Discuss-gnuradio
On Mon, May 10, 2010 at 04:59:15AM -0700, STErm wrote:
I'm still unable to compile apps for USRP2 due to the following errors on the
Boost libraries:
gcc -g -O2 -Wall -pg -o .libs/find_usrps find_usrps.o
../lib/.libs/libusrp2.so /usr/local/lib/libgruel.so
../lib/.libs/libusrp2.so:
On Tue, May 11, 2010 at 09:12:40AM +1200, Drew Read wrote:
Hi All,
Does anyone have any idea what's happening here? It seems like
gr.and_const_ss(short k) wont accept any values of k greater than
0x7fff.
It's a bit of a problem for using gr-gpio where the use case would be
On Tue, May 11, 2010 at 09:12:40AM +1200, Drew Read wrote:
Hi All,
Does anyone have any idea what's happening here? It seems like
gr.and_const_ss(short k) wont accept any values of k greater than
0x7fff.
It's a bit of a problem for using gr-gpio where the use case would be
On Tue, May 11, 2010 at 09:24:18AM +0930, Ian Holland wrote:
Hi All
I am coming across problems when using USRP2s with certain decimation
factors, and these problems are somewhat counterintuitive.
For instance, either using our own code while simply waiting for samples
to cross a
On Tue, May 11, 2010 at 10:45:05AM +0930, Ian Holland wrote:
Not sure if this sheds any more light on the issue, but I have found
that if I shut down the PC and turn it on again, before retrying the
same tests, the problem disappears. However, as I have encountered it
before as well I am still
On Sun, May 09, 2010 at 08:57:28PM +0200, Eder Matthias wrote:
Hello,
i'm newbe at Gnuradio and i started with a simple FM receiver project.
I use a USRP1 interface with a TV Rx rev3 daugtherboard and gnuradio
3.3, installed on a Ubuntu 9.04 distribution.
The CPU is a AMD X2 4800+, ramsize
On Sun, May 09, 2010 at 10:21:10PM +0530, ramanagouda odugoudar wrote:
Hello,
I am new to GNURadio and I am having following error with make command,
Any suggestions would be much appreciated
You haven't told us enough to help you.
Please read this and try again:
On Sun, May 09, 2010 at 04:01:48PM -0400, Marcus D. Leech wrote:
On 05/09/2010 02:57 PM, Eder Matthias wrote:
Hello,
i'm newbe at Gnuradio and i started with a simple FM receiver project.
I use a USRP1 interface with a TV Rx rev3 daugtherboard and gnuradio
3.3, installed on a Ubuntu
On Sat, May 08, 2010 at 06:13:15PM -0400, Marcus D. Leech wrote:
It looks like when you set low sample rates (say below 1KHz), the NCO
code doesn't seem to work right,
*never* putting out samples.
I haven't done exhaustive testing.
This was prompted by Bill Pretty's issue with his
On Sun, May 09, 2010 at 12:28:19AM +0300, Patrik Tast wrote:
Hi All,
I just reformatted and installed Fedora 12 and did yum update, an hour later,
got GnuRadio from git.
The only problem I run into was libboost. By doing yum install boost
boost-devel all was sorted out in a few minutes
On Tue, May 04, 2010 at 01:57:14AM +0200, Vincenzo Pellegrini wrote:
Hi everybody,
I have notice an oddity with recent trunks.. since I updated a couple of
months ago, my USRP (#541) is not working any more with the current trunk.
When I try to send out an 8MHz band, samples get consumed by
On Wed, May 05, 2010 at 06:50:36PM +0200, matty wrote:
Is it generally possible to use qa_fft.py or the CGRAN gcellized FFT as
offloaded portion,
because i want to analyse the benefits of the SPEs on some GNU Radio code.
Therefore a benchmark result like this (
On Mon, May 03, 2010 at 02:10:07PM +0200, matty wrote:
Hi,
here is my mp-benchmark of PS3! Looks a little bit deformed at pipe 6. I'm
running at the moment another test, to check out.
Do you have anything else running? Window manager?
I've got mine configured to runlevel 3, no X, then ssh
On Mon, May 03, 2010 at 07:16:18PM +0200, matty wrote:
Best thanks,
i'm running Fedora 11 with XFCE4! I will run another test in text mode.
My second benchmark was essentially better.
Is there any usable benchmark-code for *gcell*, where the SPEs are working?
There are benchmarks that
On Fri, Apr 30, 2010 at 09:08:59AM +0200, matty wrote:
I want to set up several Benchmark Tests for PowerPC Processors using
Altivec.
The MP-Scheduler Benchmark works for Core2 Duo and on PS3 (without Altivec)
fine.
But how can i set up the Benchmark for PowerPC Processors (e.g. Cell BE)
On Fri, Apr 30, 2010 at 07:42:32PM -0400, Don Ward wrote:
I have a question about the thread safety of
gr_wavfile_sink::close(). The description says it is thread safe
and it uses d_mutex, but what is to stop the work() function from
writing the file at the same time that close() (via
On Fri, Apr 30, 2010 at 08:48:48PM -0400, Don Ward wrote:
- Original Message - From: Eric Blossom e...@comsec.com
To: Don Ward don2387w...@sprynet.com
Cc: gnuradio mailing list discuss-gnuradio@gnu.org
Sent: Friday, April 30, 2010 8:25 PM
Subject: Re: [Discuss-gnuradio] thread
On Fri, Apr 30, 2010 at 04:07:00AM -0700, JAS DEO wrote:
Hi,
I am doing linc transmitter by using gnu radio.In which i want to separate
OFDM signal in two constant envelope(software part) and then power amplify
it seprately, finally combine two signal(hardware part).I have done the
software
On Thu, Apr 29, 2010 at 03:01:51PM +0200, Martin DvH wrote:
On Wed, 2010-04-28 at 15:28 -0400, Marcus D. Leech wrote:
Is there any kind of guide as to how gr.prefs is supposed to be used?
Is this functionality going
to be deprecated at any point, is there any kind of plan as to how it
On Wed, Apr 28, 2010 at 10:37:45PM -0400, Marcus D. Leech wrote:
On 04/28/2010 09:33 PM, Johnathan Corgan wrote:
I wonder how easy it would be to tweak the prefs module to support
app-specific preferences? Hmmm.
Not sure how to handle inheritance of attributes, but you can use any
key you
On Thu, Apr 29, 2010 at 09:12:33AM -0700, Josh Blum wrote:
Seems boost has something c++ based;
http://www.boost.org/doc/libs/1_42_0/doc/html/program_options/overview.html#id1419894
Thanks for the link!
Eric
___
Discuss-gnuradio mailing list
On Tue, Apr 27, 2010 at 01:55:55PM -0700, Sam Bretheim wrote:
Marcus D. Leech wrote:
On 04/26/2010 05:16 PM, Josh Blum wrote:
The rx and tx data packets are samples encapsulated in vrt headers for
IF data: http://www.digitalif.org/
Gosh. Too bad they want for a copy of the standard.
On Wed, Apr 28, 2010 at 12:07:31PM +0800, rui qian wrote:
Dear all
I have installed hydra-0.4 and gnuradio3.2.2 on two different machines.
and I use tunnel.py to test gnuradio3.2.2, This allows two machines to talk.
When I run the command:
# hydra-tunnel /opt/hydra/gr/share/hydra/sconf-1
to
On Mon, Apr 26, 2010 at 03:26:46PM -0700, Matt Ettus wrote:
On 04/26/2010 03:19 PM, Marcus D. Leech wrote:
Optional fields, optional packing formats. Rather a nightmare. Doing a
Wireshark parser is going to
be just so much fun :-)
We use a very well defined subset of VRT which makes
On Sun, Apr 25, 2010 at 09:52:05PM -0700, Josh Blum wrote:
Yes, definitely expected because of the way things are implemented:
The server block waits on listen, and passes the file descriptor to
the first connection to the gnuradio file descriptor source/sink.
After that there is no way for
On Mon, Apr 26, 2010 at 07:11:26PM -0400, Marcus D. Leech wrote:
On 04/26/2010 07:01 PM, Eric Blossom wrote:
On Mon, Apr 26, 2010 at 03:26:46PM -0700, Matt Ettus wrote:
On 04/26/2010 03:19 PM, Marcus D. Leech wrote:
Optional fields, optional packing formats. Rather a nightmare
On Fri, Apr 23, 2010 at 09:44:51AM -0400, Don Ward wrote:
- Original Message - From: Eric Blossom e...@comsec.com
To: Marcus D. Leech mle...@ripnet.com
Cc: GNURadio Discussion List discuss-gnuradio@gnu.org
Sent: Thursday, April 22, 2010 6:24 PM
Subject: Re: [Discuss-gnuradio] UDP
On Fri, Apr 09, 2010 at 10:23:43PM -0400, Marcus D. Leech wrote:
I'm trying to use a UDP source block from a GRC-produced flowgraph.
The only thing it does is this:
gr_block_executor: source gr_block udp_source (2) produced no output.
We're marking it DONE.
The udp source/sink needs an
On Tue, Apr 20, 2010 at 10:09:03AM +, Umair Naeem wrote:
I have made a flow graph in GRC and I am getting this error
Generating: /home/salsa/top_block.py
Executing: /home/salsa/top_block.py
gr_fir_ccf: using SSE
gr_vmcircbuf_sysv_shm: shmget (1): Invalid argument
On Tue, Apr 20, 2010 at 02:57:04PM +0200, Joachim Roop wrote:
Hi,
I am trying to write to a linux pipe/fifo, but sadly this seems to freeze
python. I am using Ubuntu 10.04 and gnuradio 3.2.2.dfsg-1ubuntu1.
Please try to execute the code and tell me why this makes the app pause.
$ man 3
On Wed, Apr 21, 2010 at 11:30:32PM -0400, Marcus D. Leech wrote:
On 04/21/2010 11:26 PM, Eric Blossom wrote:
On Tue, Apr 20, 2010 at 02:57:04PM +0200, Joachim Roop wrote:
Hi,
I am trying to write to a linux pipe/fifo, but sadly this seems to freeze
python. I am using Ubuntu 10.04
On Wed, Apr 14, 2010 at 09:56:48AM -0400, Tom Rondeau wrote:
On Wed, Apr 14, 2010 at 2:15 AM, Mir M. Ali mirmurt...@gmail.com wrote:
Hi,
I have a Gnuradio block that i built in C++ that has a vector passed to it.
When I want to import the python equivalent of that block in python how will
On Wed, Apr 14, 2010 at 02:06:19PM -0400, Catalin Patulea wrote:
On Tue, Apr 13, 2010 at 5:06 PM, Eric Blossom e...@comsec.com wrote:
I suggest (following Cypress's lead) that you have your device come
up as something other than an unconfigured Cypress FX2.
Eric, would you be able to assign
On Tue, Apr 13, 2010 at 03:32:49PM -0400, Catalin Patulea wrote:
On Mon, Apr 12, 2010 at 12:00 PM, discuss-gnuradio-requ...@gnu.org wrote:
Date: Mon, 12 Apr 2010 16:02:43 +0800
From: =?GB2312?B?TGlhbmcgWGluIMG66r8=?= liangxin...@gmail.com
Subject: [Discuss-gnuradio] About EEPROM and
On Mon, Apr 12, 2010 at 04:02:43PM +0800, Liang Xin 梁昕 wrote:
Hi All
I am developing a board with gnuradio which is like USRP. It is also use
FX2LP(CY7C68013a) and AD9862, and I add some surroundings.
I hope that my board can work well with gnuradio, but it seems like it can
only support
On Tue, Mar 30, 2010 at 08:38:08AM +0200, Stefan Fehrle wrote:
I wanted to build the USRP2 firmware to enable the testclk at J503, but I
have some errors. I download the source with the command git clone
git://gnuradio.org/gnuradio
and the mb-gcc from http://gnuradio.org/tools/
Then I
On Tue, Mar 30, 2010 at 05:27:28PM +1030, Makmur Hidayat wrote:
Dear all,
I learn about Writing A Signal Processing Block for GNU Radio.
Then I run qa_howto.py. The result like this:
Traceback (most recent call last):
File ./qa_howto.py, line 24, in module
import howto
On Tue, Mar 30, 2010 at 12:05:25PM +0200, Stefan Fehrle wrote:
Eric Blossom schrieb:
On Tue, Mar 30, 2010 at 08:38:08AM +0200, Stefan Fehrle wrote:
I wanted to build the USRP2 firmware to enable the testclk at J503, but
I
have some errors. I download the source with the command git
On Mon, Mar 29, 2010 at 10:43:08AM +0200, Axel Belliard wrote:
Hi,
Thanks for taking the time to reply. I changed my code to print the data
after the constuctor. But it is still not working. I guess, I 'm doing
something else wrong.
Have you looked at any of the qa_*.py code?
That code
On Mon, Mar 29, 2010 at 04:53:25AM -0500, srujan kumar wrote:
Hello every one,
I am srujan and pursuing MS. I took this course “GNU Radio” and first I
tried to install it on my laptop on vista it didn’t install did try so many
times and finally I came to know that one of lab systems has it
On Fri, Mar 26, 2010 at 08:45:30PM -0400, Mike Benonis wrote:
On 26-Mar-10 17:07, Eric Blossom wrote:
It may be that you have boost installed in more than one place.
Try using:
$ ./configure --with-boost=/opt/boost_1_42_0 ...
$ make make check sudo make install
Eric
I've
On Fri, Mar 26, 2010 at 12:39:30PM -0400, Mike Benonis wrote:
I hate to post yet another install issues thread, but I'm stuck for the
moment here. During make, I get the following error:
make[5]: Entering directory `/home/shared/gnuradio/gnuradio-core/src/lib'
/bin/bash ../../../libtool
On Fri, Mar 26, 2010 at 05:23:34PM +0100, Axel Belliard wrote:
Hi
I'm trying to make a very simple hier block. ( see the code below). When I
execute my top block i get no error, but the data seems to never enter the
hier block ( the print-line prints : ()). What am I doing wrong?
You're
On Thu, Mar 25, 2010 at 02:38:00PM -0700, Damien Serant wrote:
Hi everybody,
I'm trying to write samples acquired with the couple USRP2-WBX directly on
the hard disk thanks to the file sink. I'm using GRC and the decim factor is
set to 10 (idealy i need a factor 3).
With 16-bit I Q,
On Fri, Mar 12, 2010 at 11:17:13AM +0100, Sergio Benco wrote:
I'm interested in extracting samples from USRP to perform some spectrum
analysis on them. I use an USRP and a XCVR2450 to receive signals in the
ISM 2.4GHz band. My setup in GRC is a USRP (decim 64, gain 0dB, baseband
2.405GHz)
On Fri, Mar 19, 2010 at 07:28:19PM +1000, Andrew Rich wrote:
Hello
I am installing gnuradio on openSUSE.
I got this far and then got stuck:-
1) gcc - YAST
2) python and python devel - YAST
3) SWIG - YAST
4) FFTW3F -devel YAST
5) ccpunit - YAST
6) I am now stuck on boost as part of
On Tue, Mar 23, 2010 at 09:54:37AM -0700, ValentinG wrote:
Dear all,
We have 12 USRP2 boards which we would like to synchronise and run in a
phase array system as an expansion of the 4 element system we currently have
running using the VRT branch of GNURadio.
Currently we use a 4 port
On Mon, Mar 22, 2010 at 02:46:10PM -0400, Arvind Prasanna wrote:
Hello all,
I am facing an issue with an USRP2 with a RFX2400 daughterboard. I
have observed that when the USRP2 is used for
transmission/reception, it transmits/receives the first few packets
successfully and then just dies.
On Mon, Mar 22, 2010 at 12:44:52AM +0100, Gregor Dschung wrote:
Hi,
I'm trying to build gnuradio 3.2.2 under openSUSE 11.2, 32bit. I've
installed the latest KDE4 release, so this packages are installed:
i...@heusinger:~/local/src/gnuradio-3.2.2 rpm -qa | grep libqt4
On Thu, Mar 11, 2010 at 01:44:04PM -0500, bin zan wrote:
Hi Eric,
I am trying to study the create-gnuradio-out-of-tree-project you leave
to us last week. After I run ./configure ./make ./make install, I still
can't run the python file successfully. The errors are shown below. Do you
On Thu, Mar 11, 2010 at 08:16:13AM +, nadia raj wrote:
hi,
i am facing a very strange problem that when in python i write:
import gnuradio
python successfully imports the package .
but when i run benchmark_tx.py it says
ImportError: No module named gnuradio.
Please help.
On Tue, Mar 09, 2010 at 02:40:38PM +0100, Fabrizio Tappero wrote:
Hello,
I have followed the installation instructions to install GNU Radio for Fedora
12
http://gnuradio.org/redmine/wiki/1/FedoraInstall
As described in here:
On Tue, Mar 09, 2010 at 12:53:34PM +, sanam singh wrote:
hi,
im facing following problem for past two days in installing gnuradio
3.3.2 from tar.gz. i am using ubuntu 9.10
Have you tried using
$ ./bootstrap
followed by
$ ./configure ...
Google says the problem is often related
On Tue, Mar 09, 2010 at 02:33:29PM +, sanam singh wrote:
hi,
thanks for your reply.
i have done both and here is the output of ./configure:
The following components were skipped either because you asked not
to build them or they didn't pass configuration checks:
gcell
gr-gcell
On Tue, Mar 09, 2010 at 09:20:28AM -0800, ValentinG wrote:
Hi All,
We are trying to use 4 USRPs to extract the phase information due to
differences in positions of the antennas.
In a standard communications system an internally generated carrier is
locked IN PHASE with the incoming
On Tue, Mar 09, 2010 at 06:21:22PM +, sanam singh wrote:
hi,
thanks for your guidance.
well the problem is that im installing hydra testbed. and in its installation
instructions (INSTALL attached file) it says to first build gnuradio from
git then from tarball (step 10). i would be
On Mon, Mar 08, 2010 at 11:33:18AM +0700, Muhammad Najib wrote:
Hello All,
I'm trying to recreate Mr. Dayal's thesis about analog tv decoding
using gnuradio.
i have already got the black and white picture after taking 8MHz band
with frequency centered in the middle of the channel.
the
On Mon, Mar 08, 2010 at 04:09:49PM -0500, Bishal Thapa wrote:
Yes Matt, you were correct. Now the range between min-time recorded and
max-time recorded is much less. Min = 309us (still), Max = 2349us. So range
~= 2ms.
I believe it is due to Eric's reasoning, multiple services running on my
Changeset cbbe4816f99ac introduces an API change in the pmt library.
I doubt that this change will cause problems for anyone, but if does,
see below for the changes you'll have to make to your code.
With the change, pmt_dict becomes an immutable object (persistent in
functional programming
On Tue, Mar 09, 2010 at 02:34:32AM +0100, Martin DvH wrote:
Hi All,
I am building an application where I simultanuously want to receive and
transmit using the USRP2.
Since I also need the timestamps, I implement this using C++.
(Building my own filewriter class which extends
Here's a link to an excellent talk by Eben Moglen on Software Freedom,
Privacy and Security:
http://www.softwarefreedom.org/news/2010/feb/01/freedom-cloud-software-freedom-privacy-and-securit
It's definitely worth listening to.
Eric
___
On Sun, Mar 07, 2010 at 02:05:12PM -0500, Bishal Thapa wrote:
Hi,
I have an interesting observation to share, and I want to see if anybody
can help me shed some light. When I measure time in python in the following
way:
t1 = datetime.now()
self.start()
t2=datetime.now()
diff =
On Sun, Mar 07, 2010 at 10:38:32AM -0800, Josh Blum wrote:
sometimes it helps to run the magic incantation:
sudo ldconfig
-Josh
And have you set your PYTHONPATH?
$ export PYTHONPATH=/usr/local/lib/python2.6/dist-packages
Eric
On 03/07/2010 10:07 AM, sanam singh wrote:
hi,
On Thu, Mar 04, 2010 at 02:45:54PM -0500, Jakub Moskal wrote:
Hi everyone,
I am trying to use the GNU-Radio+USRP to implement a cognitive radio
use case in which radios exchange information (XML-based documents)
between each other in order to achieve a defined goal (e.g. to improve
On Sun, Mar 07, 2010 at 04:07:58PM -0500, Bishal Thapa wrote:
Thank you for your reply Eric.
I did print delta and delta.microseconds and guess what I did get this:
Receiver (0) = BABA0002
Requested RX Bitrate: 100k
Probe Level 39
0:00:00.000327 [*This is from printing delta*]
327
On Fri, Mar 05, 2010 at 06:34:48PM -0800, Eric Blossom wrote:
On Fri, Mar 05, 2010 at 04:26:34PM +0100, Mattias Kjellsson wrote:
Mattias Kjellsson wrote:
Tom Rondeau wrote:
Sorry, I just saw that I wrote the last message off- list.
Anyway, I have searched some more in the causes
On Fri, Mar 05, 2010 at 11:27:00AM +0100, Christian Rohlfing wrote:
The script benchmark_rx.py (located in gnuradio-examples/python/digital)
doesn't run with the FPGA-file std_4rx_0tx.rbf. Is there any explanation
for this problem?
On the TX-side, I'm running benchmark_tx.py with the
On Fri, Mar 05, 2010 at 04:26:34PM +0100, Mattias Kjellsson wrote:
Mattias Kjellsson wrote:
Tom Rondeau wrote:
Sorry, I just saw that I wrote the last message off- list.
Anyway, I have searched some more in the causes of this error. I took
the easy way out and looked in gr_buffer.h at
Hi folks,
I just committed a change to gr-howto-write-a-block that now has it
install in the howto python namespace instead of in the
gnuradio.howto namespace.
This allows howto (or other things based on it) to install under a
non-system prefix. For systems using binary GR packages, this means
On Wed, Mar 03, 2010 at 11:25:56AM +0100, Mattias Kjellsson wrote:
Hi list,
I have been trying to send and receive higher order constellations than
bpsk (qpsk, qam16, ...). The way I'm currently implementing this (in
c++) is that I have a custom pack_k_bits_bb(int bits_per_symbol)-
block
On Thu, Feb 25, 2010 at 11:41:23AM -0800, Josh Blum wrote:
gr_make_io_signature2 and 3? Common mr gnuradio, with your fancy c++
and your smart pointers and your swig. How-about replacing this with
a single gr_make_io_signature with some parameter defaults:
gr_make_io_signature(min, max,
On Thu, Feb 25, 2010 at 05:35:32PM +0100, elettra.p...@libero.it wrote:
Messaggio originale
Da: trondeau1...@gmail.com
Data: 25-feb-2010 15.57
A: elettra.p...@libero.itelettra.p...@libero.it
Cc: discuss-gnuradio@gnu.org
Ogg: Re: [Discuss-gnuradio] Question about inputs and
On Sat, Feb 20, 2010 at 01:43:24PM -0800, Veljko Pejovic wrote:
I narrowed down the problem to this:
- In a standard benchmark_rx.py example from digital immediately
after a packet is received the callback is triggered.
- In the ofdm case the the callback is triggered in groups separated
On Sun, Feb 28, 2010 at 02:57:45PM +, Tim Pearce wrote:
Hi,
I've been having a look at usrp2/host/lib/copiers.cc and the schematics to
try and work out if the units mean anything.
As far as I can tell the LTC2284 ADC is set up to use the +-1V input range
and output 14bits as a twos
On Fri, Feb 26, 2010 at 02:26:53PM -0800, Affan Syed wrote:
Hi all,
I have been building a simple block that can detect energy at a
particular frequency, i.e. a tone detection block. The signal
processing seemed simple enough for me, so I directly coded it.
Essentially my tone_sink takes in
On Mon, Feb 22, 2010 at 12:03:28PM -0500, christophe.par...@etsmtl.ca wrote:
Hi all !
I am dealing with PSK (BPSK, QPSK, 8PSK) modulation/demodulation ;
in demodulation, I would want to retrieve the exact point (vector)
before finding the closest constellation point.
K
Is there any way
On Mon, Feb 22, 2010 at 07:34:01AM -0600, Jason Uher wrote:
On Mon, Feb 22, 2010 at 3:55 AM, amarnath alapati
amarnath.alap...@gmail.com wrote:
hi everyone,
Is there any way for me to run the benchmark_tx and
benchmark_rx.py files in debugging mode so that I can see the entire
On Wed, Feb 17, 2010 at 02:44:08PM -0800, Veljko Pejovic wrote:
Hi Eric,
You can find the example here:
http://cs.ucsb.edu/~veljko/downloads/tx_ofdm_flex.tar.gz
The example (benchmark_ofdm_tx_new.py) changes the number of carriers
(from 50, to 100, 150, and so on) after every 300 packets
On Wed, Feb 17, 2010 at 10:04:47AM +0100, Fabrizio Tappero wrote:
Hello,
I am new in the GNU Radio community and I am looking for some help to
get started.
I have installed Linux Ubuntu 9.10 (Karmic Koala) as Virtual Box host
in OS X 10.5.8.
following the Getting Started indications from:
On Mon, Feb 15, 2010 at 10:51:05AM -0800, Veljko Pejovic wrote:
Update:
I moved the reconfiguration one level up, to transmit_path.py and it
works for high interpolation values (low bit rate), but still hangs
for the low ones.
I'm quite puzzled now, it seems that lock() - unlock() gets
On Sat, Feb 13, 2010 at 11:38:27PM -0600, Omid F wrote:
Thanks Matt for the helpful suggestions. I apologize for the long back and
forths! I really appreciate your help.
I checked the ethernet interface on two of my laptops. On both, I made sure
this is the setting:
Pause parameters for
On Fri, Feb 12, 2010 at 07:31:57PM +0100, Per Zetterberg wrote:
Hi,
(I am using the VRT code but I don't think it matters for the
questions below)
In rx_streaming_samples.cc one finds the following code:
while (!signaled
!handler-has_errored_p()
On Fri, Feb 12, 2010 at 12:52:00PM -0800, Veljko Pejovic wrote:
Hi,
I'm using two USRP2 with XCVR2450s, gnuradio 3.2.2 and Ubuntu 9.10.
I ran the benchmark_tx/rx example from gnuradio-examples/ofdm and
measured packet inter-arrival times at the receiver. I also modified
the sender to wait
On Mon, Feb 08, 2010 at 01:57:16PM +0530, zero cool wrote:
Hi all,
after successful integration and complete working usrp, I got following
error:
sand...@sandeep-desktop:~/gnuradio/gnuradio-examples/python/usrp$ sudo
./usrp_nbfm_rcv.py
Using RX d'board A: DBS Rx
len(rx_chan_coeffs) = 397
On Mon, Feb 08, 2010 at 12:23:25PM -0500, Charles Irick wrote:
I'm running into issues with the sendmsg command in the vectorized
send path. Depending on the buffer size I get an error returned for
Bad Address
ethernet:write_packetv: send: Bad address
I'm working at the c++ level right
On Tue, Feb 02, 2010 at 05:30:23PM +0100, Dimitrios Symeonidis wrote:
The pdf file docs/doxygen/other/omnithread.pdf is broken, while the
html and postscript files both look fine. Tried with both evince and
acroread.
A simple ps2pdf from the postscript file produces a correct pdf
Best
On Sun, Jan 24, 2010 at 02:21:12PM +0100, Carlo Donato Lecce wrote:
Hello all,
I seem that using transmit_path and receive_path the reconfigure
of flow graph is bad.
The following code hung after the call of unlock.
I think that there are a bugs in the transmit_path because
using
On Fri, Feb 05, 2010 at 03:22:51PM +0530, chandu wrote:
On Thu, 2010-02-04 at 10:44 -0800, Eric Blossom wrote:
On Thu, Feb 04, 2010 at 03:42:10PM +0530, chandu wrote:
What is the default input signal frequency of DDC of USRP(1).
1. how I and Q are given to DDC?I Q to same DDC?I Q to two
On Thu, Feb 04, 2010 at 03:42:10PM +0530, chandu wrote:
What is the default input signal frequency of DDC of USRP(1).
1. how I and Q are given to DDC?I Q to same DDC?I Q to two different
DDC's among 4 DDC's?two ADC outputs to single DDC?
2. how to give IF or only real signal to DDC through
On Thu, Feb 04, 2010 at 07:25:47AM -0600, Tom Rondeau wrote:
On Wed, Feb 3, 2010 at 1:55 PM, bin zan zanbin2...@gmail.com wrote:
Hi Tom,
In our case, even with script from Veljko, the OFDM receiver doesn't show
any thing. And we always see usrp2: failed to enable realtime scheduling.
Do
On Wed, Feb 03, 2010 at 03:39:34PM -0700, Jon Paul Lundquist wrote:
Hello,
I wish to have a USRP source receiving at 54.1Mhz sent straight to a
stereo wave file sink with no demodulation or any other
manipulation. Side A of the USRP would record to the left channel
and side B to right.
On Mon, Feb 01, 2010 at 05:57:04PM +0100, Christoph Thein wrote:
Hi,
I am trying to figure out how it is possible to get more than the U message
from the USRP2 to the host via the UART port but I am stucked at some point.
When I try to transmit other characters than U I am receiving
On Mon, Feb 01, 2010 at 02:36:22AM -0800, abbasi wrote:
Does any body have an idea about construction of the Benchmark_tx packet.
Yes.
Because when i transmit big files it takes long time to be received on the
other computer.
OK.
Furthermore, I want to create a header for my own
this
code into your own SPE executable.
With the modified FFTW library, use the regular gr.fft_vcc block, not
the gcell.fft_vcc block.
Eric
2010/1/27 Eric Blossom e...@comsec.com:
On Wed, Jan 27, 2010 at 11:36:14AM +0100, Thilo Mönicke wrote:
Hi,
I tried to set up a little Testprogram
On Fri, Jan 29, 2010 at 04:21:58PM +, patrick mekeze wrote:
I am a new developper and i have a school project on gnu-radio library
My goal is to make and reverse-engineering on Gnu-Radio library due to aim of
meta modeling and code generation.
First i have downloaded the last version
On Thu, Jan 28, 2010 at 11:33:55AM -0500, Catalin Patulea wrote:
Under usrp/firmware/src I see a directory called usrp2. This is the
Cypress firmware for USRP2? (while usrp2/firmware is firmware for the
microblaze?)
Long, long ago, there was a prototype for the USRP, and that ran code
that
On Wed, Jan 27, 2010 at 11:36:14AM +0100, Thilo Mönicke wrote:
Hi,
I tried to set up a little Testprogram for the PS3 which should show
the advantage of the Power PC structure. For that, the program should
calculate 1 FFTs and take the time. Unfortunately this program is
much slower as
On Tue, Jan 26, 2010 at 10:09:01PM -0500, Tom Gross wrote:
I am in the process of hacking up the usrp2 host and firmware to
support two receiver channels. I'm at the point where
start_rx_streaming is being acknowledged for channel 1 but there is
no data being returned for that channel. I
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