Hi,
I have a USRP2 + WBX board, and would like to use GRC to simultaneously
transmit and reveive OFDM using a single unit.
Is it possible to have a single GRC file launch two windows and run the
transmission and reception using a single WBX board at the same time?
Best regards,
Elvis Dowson
Hi,
If I launch gr-digital/examples/ofdm/rx_ofdm.grc using
gnuradio-companion, it runs a barely visible window that is probably a few
10x20 pixels in size, and if you maximize it, the window is empty with no
controls.
This is with the gnuradio-3.7.1 release.
Best regards,
Elvis Dowson
Hi,
I have a Xilinx Spartan-3AN FPGA starter kit and I would like to
interface it with a BasicRX.
It has a
- 2 channel SPI-based ADC with programmable gain,
- 4 channel SPI-based DAC
Page 75 of the user manual describes the Analog capture circuit -
http://www.xilinx.com/support/docume
to be put in between the ADC and the
BasicTX?
Best regards,
Elvis Dowson
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, assuming that I
am going to learn from the USRP2 design, and the fact that it already has the
Spartan-3AN FPGA, and I'm going to build my own RF front-end?
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er better, and does it have all the required RF modeling and
simulation capabilities or should I use pspice?
I would like to have an integrated workflow, from simulation to prototyping,
with as few tools as possible, and then continue to refine the model and
prototypes incrementally.
lation that is implemented in software/firmware using the
FPGA.
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and export signal
processing blocks to the FPGA or generate C code.
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Hi,
Is it possible to simulate the RF signal input part using a digitized
waveform file, and use GNU Radio to process the signal?
Best regards,
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Hi,
On Jun 18, 2010, at 10:26 PM, Colby Boyer wrote:
> What I recall from a presentation Ettus gave was that you can integrate
> matlab with the USRP2; you have to write the drivers for the matlab/USRP2
> interface. So it is possible.
Are there any source code examples for USRP1 ? I need to ha
Hi,
Are there any components that can be used to implement a programmable
band-pass filter between the antenna and the LNA, of the RF front-end for an
SDR application.
I was wondering if there are an discrete components available that can be
programmed by I2C or SPI, that can be control
pe of thing before?
Could I potentially create my own externally switched capacitor & resistor
network, under control of a standard FPGA, to achieve the same thing?
Best regards,
Elvis Dowson
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aphic.pdf
Description: Adobe PDF document
The part that I would like to make programmable are the 2 BPF stages before
LNA1 and LNA2.
Any suggestions?
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Elvis Dowson
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connection on the WBX board should I connect the SMA cable to?
The Ettus website has absolutely no user documentation for the hardware, and it
is not readily apparent to a new user that you can find additional information
about the hardware on GNU Radio.
Elvis Dowson
threaded connector ?
Would that do the trick?
Elvis Dowson
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the LEDS.
I'm trying to build GNU Radio from the git sources on Mac OS X 10.6.4 right
now, and will try GRC shortly.
Elvis Dowson
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nent usrp2.
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e moment? I thought that was something
that was being developed to better integrate with the National Instruments
hardware ecosystem.
Elvis Dowson
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g is other commands like usrp2_probe all default to using the eth0
interface, it didn't accept a -e eth2 option.
How can I tell GNU Radio to only use the eth2 interface for all communications
with the USRP2, instead of eth0?
Elvis Dowson
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rtual hard disk space.
I also noticed that I couldn't alter the center frequencies of the spectrum
analyzer, and it was stuck at the 1.13438 Ghz point.
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Fusion 3.1.0, with Fedora 12 64-bit. The host hardware was an
iMac 27" i7 Quad core system with 4GB RAM.
I allocated with 8 CPUs to the Fedora VM and 2048GB RAM. The second ethernet
adapter was configured as a bridged ethernet network adapter.
Elvis D
Hi,
Has anyone built the USRP2 UHD drivers for Mac OS X 10.6.x ?
Elvis Dowson
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com/redmine/ettus/projects/public/wiki/U2binaries
Some of the UHD firmware images are listed as being compatible with any
daughterboard, so perhaps you could try one of those.
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htt
#usrp_dbid.TV_RX_REV_3_MIMO
dbid == 0x00??): #usrp_dbid.WBX
Elvis Dowson
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X d'board 0x0053
>>> gr_fir_ccf: using SSE
>>> gr_fir_fff: using SSE
aUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaU
However, I get nothing but static when I run the program. What could be wrong?
I tried connecting the antenna to both J3 and J2,
work easily out of the box.
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dbid == 0x0053 ): #usrp_dbid.WBX
print "This daughterboard does not cover the required frequency
range"
print "for this application. Please use a BasicRX or TVRX
daughterboard."
raw_input("Press ENTER to continu
module,
shouldn't that be sufficient to get clear broadcast FM radio?
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Hi Alex,
On Jul 16, 2010, at 2:02 AM, Alexandru Csete wrote:
> I suggest you leave the pre-demodulator settings as they are in the
> example and add a rational resampler after the demodulator, see
> examples/audio/test_resampler.py on how to use it.
I looked at the rational resample example, and
iMac quad-core i7 processor at 2.8 GHz.
I've allocated 2.5GB RAM to the linux virtual machine.
I would like to know if the system instability and un-responsiveness is
something specific to my system configuration or if it is related to GNU Radio
or the USRP2 or the particular firmware
Hi Alex,
On Jul 16, 2010, at 9:05 AM, Elvis Dowson wrote:
> When I hard-code the value to 32050Hz, the system plays back, but at a slower
> speed.
In the previous patch, I missed setting the frequency of the audio sink to the
rational resampler's output rate as s
ou asked not
to build them or they didn't pass configuration checks:
gcell
usrp2
gr-usrp2
gr-gcell
gr-audio-alsa
gr-audio-oss
gr-audio-windows
gr-comedi
gr-qtgui
These components will not be built.
Configured GNU Radio release v3.3.1git-30-g27
Hi Alex,
On Jul 16, 2010, at 2:02 PM, Alexandru Csete wrote:
> I do not have experience with USRP2 but maybe my experience with USRP1
> applies.
> When I got the WBX back in January, I noticed that it was tuning a bit slow
> compared to the other boards that I have. I think the technical term i
7;m using the latest UHD firmware downloaded from the Ettus website. What
shoudl I do?
Elvis Dowson
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Hi,
I switch to the GNU Radio next branch, checkout the files, and find that
the gr-uhd component is not present.
Where is it located?
Best regards,
Elvis Dowson
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http
hough it has already been
installed.
Why is this so?
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Elvis Dowson
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,
etc, but I'm not able to detect the USRP2 as described here:
http://old.nabble.com/Can%27t-connect-to-USRP2-using-UHD-driver-td29182873.html
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Hi,
I finished building the next branch, and gr-uhd is present, and I can
even see it in grc. There's an entry for UHD Simple Source.
Now, which firmware or FPGA image should I use, and what is the difference
between the two?
u2_rev3_uhd_20100706.bin (842.4 KB) Josh Blum, 07/07/2010 01:
Hi Manuel,
Thanks for the reply.
I tried burning the matched FPGA and firmware images onto the SD card, but the
LED lights don't blink any more.
Here are the command fragments that I used to write the two images, in
succession onto the SD card
Write the new FPGA image to
Hi,
On Jul 16, 2010, at 5:33 PM, Elvis Dowson wrote:
> I tried burning the matched FPGA and firmware images onto the SD card, but
> the LED lights don't blink any more.
When I checked the download size, the FPGA firmware wasn't completely
downloaded, so the image was corrupt
t;> Done
uhd_source_null_sink.grc
Description: Binary data
I have attached the grc source file.
What am I doing wrong?
Best regards,
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then something's gone
> wrong in the build/install process. What OS are you running?
I'm running Fedora 12 x86 64-bit.
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Hi Scott,
On Jul 16, 2010, at 7:52 PM, Scott Johnston wrote:
> I have been following this thread because I am attempting to do the same
> thing. Can you tell me what the values for "interp" and "decim" are when the
> program is working correctly. Also, my system is failing to tune to the
> cen
t;>> gr_fir_fff: using SSE
interp = 960
decim = 641
aUaUaUaUSaUaUaUaUaUaUaUaUaUaUSaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaUaU
Best regards,
Elvis Dowson
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D
self.myform['freq'].set_value(target_freq) # update displayed value
self.myform['freq_slider'].set_value(target_freq) # update displayed value
self.update_status_bar()
self._set_status_msg("OK", 0)
retu
Hi Alex,
On Jul 16, 2010, at 8:16 PM, Elvis Dowson wrote:
>
> Wow, that worked!! I'm getting a clean strong FM audio reception now.
>
I think I spoke too soon, it worked once, and now its back to the distorted
audio
$ ./usrp2_wfm_rr_rcv.py -e eth2 -f 104.1 -V 0.0 -g 31 -O hw:
27;re also using
one) is working correctly, and if my board has some sort of defect.
Best regards,
Elvis Dowson
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80e3,# passband cutoff
115e3, # stopband cutoff
0.1, # passband ripple
60) # stopband attenuation
chan_filt = gr.fir_filter_ccf (chanfilt_decim, chan_fi
Hi Josh,
I keep getting this error;
gr_block_executor: source produced no output.
We're marking it DONE.
What does this mean?
Best regards,
Elvis Dowson
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Hi Josh,
WxWidgets 2.9.0 supports Cocoa on Mac OS X 10.6.4, so if I
were to get that running with WxPython, would grc automatically switch over to
using Cocoa instead of gtk, when running on Mac OS X?
Best regards,
Elvis Dowson
onents will not be built.
Configured GNU Radio release v3.3.1git-30-g278b6db3 for build.
best regards,
Elvis Dowson
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GTK, or does it use wxPython for the GUI?
best regards,
Elvis Dowson
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Hi Michael,
I was wondering if you could help me fix an issue with
libusb not being recognized on Mac OS X 10.6.4.
I downloaded libusb-1.0.8 from the following location:
http://sourceforge.net/projects/libusb/files/libusb-1.0/libusb-1.0.8/libusb-1.0.8.tar.bz2/download
$ c
See the following link for some screenshots:
http://gtk-osx.sourceforge.net/
I'm going to try and install that, and see if it satisfies all GRC
dependencies.
http://sourceforge.net/apps/trac/gtk-osx/wiki/Build
Best regards,
Elvis Dowson
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Hi Josh,
I hope you're doing fine! I was wondering if you have an UHD
example that you can share with me?
I couldn't find any such example on the net, and I just need a simple starting
point, to bring data from the USRP2 using UHD.
best regards,
El
Hi Michael,
On Jul 19, 2010, at 5:45 PM, Michael Dickens wrote:
> Hi Elvis - Did you try "configure --with-fusb-tech=libusb1"? You have to
> specify that you want to use LIBUSB version 1; config/usrp_libusb.m4 checks
> to see if you've specified this on the CLI & if not then doesn't check for
sability... yes
checking libusb-1.0/libusb.h presence... yes
checking for libusb-1.0/libusb.h... yes
checking for libusb_bulk_transfer in -lusb-1.0... yes
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libQtCore >= 4.2.
checking for QTGUI... no
gr-qtgui requires libQtGui >= 4.2.
checking for QTOPENGL... no
gr-qtgui requires libQtOpenGL >- 4.2.
These libraries are available on my system, e.g. libQtCore.dylib, etc
What can I do to make it accept the built libraries?
Best reg
Hi,On Jul 19, 2010, at 8:59 PM, Michael Dickens wrote:Hi Elvis - GNU Radio's configure script is looking for the PKG_CONFIG installed files for QtCore.pc & so forth. Those need to be in the PKG_CONFIG_PATH, and I'd bet that they're not right now otherwise they would have been found.I can see a QtC
Hi,
On Jul 19, 2010, at 9:23 PM, Elvis Dowson wrote:
> I updated my .profile accordingly
>
> export PKG_CONFIG_PATH=/Developer/Applications/Qt-4.7/lib:$PKG_CONFIG_PATH
I had to explicitly put the full path, and it worked, thanks, Michael
export
PKG_CONFIG_PATH=/
Hi Michael, I've managed to get gr-qtgui to pass all configuration checks for building on Mac OS X 10.6.4. What do you think I should do next ? Is there a simple gnuradio example that I can run to test if the gr-qtgui component is working?For the qwt3dplot-0.2.7 sources, use
Hi Alex,
On Jul 19, 2010, at 10:47 PM, Alexandru Csete wrote:
> You'll find some examples in the source tree under gr-qtgui/src/python/
> I don't think they are installed in the installation directory.
I haven't been able to build it yet, just processing and building all the
required packages o
You should recreate aclocal.m4 with macros from libtool 2.2.10
libtool: and run autoconf again.
make[6]: *** [pmt.lo] Error 63
make[5]: *** [all] Error 2
make[4]: *** [all-recursive] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [
Hi Michael,
On Jul 19, 2010, at 11:55 PM, Michael Dickens wrote:
> On Jul 19, 2010, at 12:57 PM, Elvis Dowson wrote:
>> One of the things that the guys working on GTK+ mentioned was that you
>> should completely uninstall MacPorts, to do the GTK+ installation. The GTK+
>&g
Hi,
On Jul 19, 2010, at 11:48 PM, Michael Dickens wrote:
> Use the provided 'bootstrap' routine, but remember to change the 'libtoolize'
> call to 'glibtoolize' or whatever you named that function on the version you
> installed yourself. If you used MacPorts to install GNU Libtool (of which
>
On Jul 20, 2010, at 12:56 AM, Michael Dickens wrote:
> (1) On Jul 19, 2010, at 12:57 PM, Elvis Dowson wrote:
>> One of the things that the guys working on GTK+ mentioned was that you
>> should completely uninstall MacPorts ...
>
> versus (2) < http://sourceforge.ne
Hi,
Where can I control linker architecture flags to prevent the following
errors? I've built qt, qwt and qwtplot3d for 32-bit mode, and with cocoa
support.
However, at link time, gnuradio is trying to link to x86_64.
A little futher down, it is trying to link to the Carbon framework,
Hi Michael,
I noticed something weird, and was wondering if you've
come across this already
when using qt-4.7 cocoa 32-bit only, qwt, qwtplot3d, sip and pyqt4, and
building gnuradio, the linker incorrectly attempts to link to the Carbon
libraries,
h ../../../libtool --
. Perhaps the gr-qtgui configs have been updated in the master branch and
not on the next branch? I was trying to get this done on the next branch, since
only that branch has support for UHD, and if I want to use my USRP2 with Mac OS
X, I need to use UHD, and try to
n-framework-when-built-w-cocoa?p=151420#post151420
>
> On Jul 20, 2010, at 3:03 AM, Elvis Dowson wrote:
>> After doing a little digging around in the gnuradio configured files, I see
>> references to Carbon in config.status
>
> config.status is generated by configure. The r
;/Library/Python/2.6/site-packages/OpenGL/contextdata.py", line 40, in
getContext
"""Attempt to retrieve context when no valid context"""
OpenGL.error.Error: Attempt to retrieve context when no valid context
Best regards,
Elvis Dowson
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Hi Philip and Per,On Jul 19, 2010, at 5:57 PM, Philip Balister wrote:http://ettus-apps.sourcerepo.com/redmine/ettus/projects/uhd/repository/revisions/master/show/host/examplesThe C++ examples in that folder wasn't helpful, since a. it isn't readily apparent how to take that information and use it t
Hi Josh, Yes, I forgot about that, it's just that the default sample rate in GRC was set to 32k, and I overlooked that. I've pulled in and compiled the latest SRCREVs from both the gnuradio and ettus uhd repositories, on Fedora 12.I've set it to 100 Msps, and connected it to a Nul
Hi Josh, Yes, I forgot about that, it's just that the default sample rate in GRC was set to 32k, and I overlooked that. I've pulled in and compiled the latest SRCREVs from both the gnuradio and ettus uhd repositories, on Fedora 12.I've set it to 100 Msps, and connected it to a Nul
packet: 363
Recv pirate num frames: 33967
The hardware does not support the requested sample rate:
Target sample rate: 100.00 MSps
Actual sample rate: 25.00 MSps
gr_block_executor: source produced no output.
We're marking it DONE.
Best regards,
Elvis Dowson
Hi Manuel,
On Jul 22, 2010, at 1:48 PM, Manuel Fuhr wrote:
>> Test case 03: Setting the maximum USRP2 sample rate (100M) doesnt work, it
>> switches to 25Msps.
> That's because it's impossible to transfer 32-bit samples with 100Msps
> over Gigabit (even without any overhead).
Why does the uhd be
Hi,
Would someone happen to know which PCB material is used for the WBX RF
front-end? Is it FR4 or Rogers RT/duroid?
Elvis Dowson
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Hi,
FYI, I just briefly tried doing a git pull and build for the gnu radio
next branch, and it stopped with a build error yesterday.
uhd_simple_source.cc: In member function ‘virtual uhd::tune_result_t
uhd_simple_source_impl::set_center_freq(double)’:
uhd_simple_source.cc:65: error: ‘clas
-time, it's not the case.
Has anyone else encountered this problem before? I've run these tests both
natively by installing Ubuntu 10.04 on the iMac 27 i7 and configuring the intel
HDA audio module, and also on a VM image, but it gives me the same results.
El
ior is the same, whether I run GNU Radio natively on my iMac or
inside a virtual machine using both Ubuntu 10.04 and 9.10.
What do you think the root cause is?
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http:
Hi,
Would anyone happen to have an idea where I should start looking, in
order to debug the audio under-runs for the audio sink?
Best regards,
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buntu Documentation
I upgraded the Ubuntu 10.04 64-bit with hard real-time extensions, to improve
the latency. However, I still get audio under-runs.
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Hi,
Another data point, if I set the audio sink sample rate to 16kHz, there
are no under-runs, but that obviously will cause the sound to play back at a
lower pitch, but atleast there are no crackles and distortions. In the console
output window, there are no audio underruns.
When you se
would one go about fixing this for gr-audio-alsa? Perhaps if you can give
me some high level tips and pointers, I could try to make the changes.
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sa-base.conf
options snd-hda-intel power_save=10 power_save_controller=N model=imac27
For the Cirrus Logic CS4206/4207 chipset, the snd-hda-intel driver options
parameter for the model is imac27
Do you think the two are matched?
Best regards,
Elvis Dowson
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others, but not for me.
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I guess, its perhaps an older version of GNU Radio, the one before the audio
API changed.
Best regards,
Elvis
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t.
Try to re-check your network settings or allocate more CPUs for the VM.
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ry clock cycle?
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ests itself on both a VM and with GR running natively on my
hardware (late 2009 iMac 27" i7).
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Elvis Dowson
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all
The Cell processor on the PS3 has 2 PowerPC processor units, and 7 vector
processors (or SPUs, 1 of a total of 8 is disabled to improve yield). The IBM
Cell Blades have chips with all 8 SPUs enabled.
Best regards,
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Hi,
On Aug 25, 2010, at 10:28 PM, Brook Lin wrote:
> I also found that there is nothing
> under directory /usr/local/lib/python2.6/site-packages. How should I fix
> this problem? Can anyone give me some advice?
Perhaps this is because you might not have run a
sudo make install
after buildin
Hi,
I just updated to the latest uhd driver sources from the git repo, and
I get the following error on Mac OS X 10.6.4.
In file included from
/Users/elvis/Tool/ettus/uhd/host/lib/transport/libusb1_base.hpp:23,
from
/Users/elvis/Tool/ettus/uhd/host/lib/transport/libusb
Hi,
More specifically, there is a problem with calls to libusb_cpu_to_le16(x)
in libusb.h
/** \def libusb_cpu_to_le16
* \ingroup misc
* Convert a 16-bit value from host-endian to little-endian format. On
* little endian systems, this function does nothing. On big endian systems,
* the b
Hi,
I'm trying to build the mb-gcc toolchain on Mac OS X 10.6.4, but it
doesnt progress. Without a mb-gcc, gnuradio configure doesnt proceed with
building support for the USRP2, so I can't try out the UHD drivers on Mac OS X.
I followed these steps
$ svn export
http://gnuradio.org/svn
Hi,
I think Philip Balister has done some work getting gnuradio to run with
a beagle board, but that used a modified USRP device.
See some of his technotes:
http://www.opensdr.com/node/17
Also check the following links for some of the presentations that he has made:
http://www.opensdr.
Hi Michael,
On Sep 7, 2010, at 6:28 PM, Michael Dickens wrote:
> I've updated the GNU Radio install via MacPorts to 3.3.0.
I just have a quick question.. are all the library dependencies for GNU Radio
build as 32-bit only executables or for both 32-bit and 64-bit?
Best regards,
Elvi
Hi,
Between wxWidgets-2.8 and wxWidgets-2.9, there are some breaking
changes with the way the OpenGL rendering contexts are handled. You can see the
difference in the samples/opengl/cube example in the wxWidgets-2.8.11 and
wxWidgets-2.9.2 svn repo.
I just have a quick quesion which is,
e com.apple.versioner.python Prefer-32-Bit -bool yes
> and
> export VERSIONER_PYTHON_PREFER_32_BIT=yes
> but still get the same error
> any ideas?
Just check if wxWidgets/wxPython is working correctly by typing the following
commands:
$ python
>>> import wx
>>>
Hi Michael,
On Sep 15, 2010, at 1:12 AM, Michael Dickens wrote:
> Hi Dave - We're just discussing this issue (32-bit execution) on the
> MacPorts' lists. The quick end-result is: With the current MacPorts'
> provided python2.6 or older, the PREFER_32_BIT stuff does not work because
> 'python'
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