On Wed, Mar 18, 2015 at 11:47 PM, ben Gee wrote:
> i should also add that the output of "./pyboms" list shows that gr-fosphor
> IS installed, output below:
Interesting ...
Are you sure you haven't two install of pybombs with different
prefixes that would mix things up ?
If not, I think pybombs
Tom,
As you expected, disabling buffering on the file sink did not have any
effect. I have fixed the issue though by making two changes to
opensl_source_impl.cc:
1) change scale_factor to 32768 (1/2^14 doesn't make sense, it causes
clipping because the volk conversion method divides by scale_fa
Hi all,
Please address the last thread I wrote. Meantime, I tried method 3 as well,
where I downloaded 1.5 GB SDK software, but when I execute,
"sudo sh oecore-x86_64-armv7ahf-vfp-neon-toolchain-nodistro.0.sh", it
errored as "Error: Installation machine not supported!".
Please be kindly suggest
Hi Henry,
> I have built a tx and a rx grc flowchart for OFDM using USRP. I found
> the range of the amplitude of the input is fairly small in order to
> get it working (i.e., the USRP at the rx end can successfully decode
> the packets.) I wound if anyone can share some thoughts about this?
> I'v
Hi Merry,
the taps characterize the channel you want to simulate, so you will need
to calculate these based on your mathematical channel model. The
classical multipath channel model is a tapped-delay line-model, and that
kind of directly maps to the concept of filter taps.
Are you sure you do 4 s
Hi Zamrath,
your questions become very specific to your system, and can't easily be
answered by just reading the error texts. You will have to investigate a
bit deeper yourself and at least find out in which context (sub-step)
these things occur.
Greetings,
Marcus
On 03/19/2015 12:12 PM, Zamrath
Hello GNU Radio'ers,
I have a GRC flowgraph with a custom C++ block that feeds a stream of
vectors of floats to the QT GUI Vector Sink. Which particular internal
vector of floats gets streamed out of the custom C++ block is set on
the fly from a QT GUI Chooser. I am using the autoscale on the QT G
On 03/18/2015 10:44 PM, Alireza Khodamoradi wrote:
> Philip,
>
> Thank you for letting me using your images. I tried both of them with the *dd
> *command, it took me around 2000 seconds (30 mins) each and after using
> them on the board I get the following message via the UART:
>
> *U-Boot SPL 20
On Thu, Mar 19, 2015 at 9:26 AM, Murphy, John wrote:
> Hello GNU Radio'ers,
>
> I have a GRC flowgraph with a custom C++ block that feeds a stream of
> vectors of floats to the QT GUI Vector Sink. Which particular internal
> vector of floats gets streamed out of the custom C++ block is set on
> t
On Thu, Mar 19, 2015 at 3:28 AM, Vijay Galbaransingh wrote:
> Tom,
>
> As you expected, disabling buffering on the file sink did not have any
> effect. I have fixed the issue though by making two changes to
> opensl_source_impl.cc:
> 1) change scale_factor to 32768 (1/2^14 doesn't make sense, it
Thanks, got it.
John Murphy
jmur...@comsonics.com
On Thu, Mar 19, 2015 at 10:30 AM, Tom Rondeau wrote:
> On Thu, Mar 19, 2015 at 9:26 AM, Murphy, John wrote:
>>
>> Hello GNU Radio'ers,
>>
>> I have a GRC flowgraph with a custom C++ block that feeds a stream of
>> vectors of floats to the QT GUI
On Wed, Mar 4, 2015 at 2:54 PM, Christopher Friedt
wrote:
> Hi list,
>
> I'm looking for a pointer in using GRC when creating a hierarchical block.
>
> The hierarchical block has an parameter block of type None with ID
> 'taps'. The Value of the block is 'filter.firdes.root_raised_cosine(
> nfilt
Sylvain,
Firstly, there is only one install of pybombs on this machine, so
definitely no separate install conflicts
Second, unfortunately, in an effort to start over, i uninstalled gr-fosphor
and attemted to reinstall it. I'm now getting this opencl error now. not
sure if this was something i over
> Can you shed some light on building these with pybombs as a
> dependency for gr-fosphor? Should they be installed system-wide or do they
> have to be installed in the pybombs environment?
The whole OpenCL SDK (headers / libs / drivers) must be installed
outside of pybombs, at the system level an
Here are the files I have in the FAT partition (boot):
1- boot.bin
2- u-boot.img
3- uEnv.txt
4- uImage
5- zc702-zynq7.dtb
* I used this image: *sdimage-8G-zc702.direct*
On Thu, Mar 19, 2015 at 6:41 AM, Philip Balister
wrote:
> On 03/18/2015 10:44 PM, Alireza Khodamoradi wrote:
> > Philip,
> >
Hi Marcus,
Thanks for your very detailed comments.
My purpose of testing the PER is to facilitate evaluations on further
modifications of the codes. I'd like to set up a benchmark like the ones I
have shown and then draw a PER vs SNR curve to show the performance just
like how we do evaluations t
Follow us live at http://youtu.be/lBA-2d4yT08, or on #gnuradio.
See ya!
M
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Hello:
Thanks to everyone who has replied. It seems that audio processing has
some sort of timing issues.
When I experiment with the channelizers detailed in;
http://www.trondeau.com/examples/2014/1/23/pfb-channelizers-and-synthesizers.html
https://static.squarespace.com/static/543ae9afe4b0c3b
My particular video card OpenCL drivers moved where they were installed
between different
versions of Ubuntu. I tracked it down with:
~$ locate libOpenCL.so
producing...
/usr/lib/i386-linux-gnu/libOpenCL.so.1
/usr/lib/i386-linux-gnu/libOpenCL.so.1.0
/usr/lib/i386-linux-gnu/libOpenCL.so.1.0.
hello
i got the exact same error
i am following the guidlines given for OOT module given here-
http://gnuradio.org/redmine/projects/gnuradio/wiki/OutOfTreeModules
/rohin@rohin-Inspiron-5520:~/gr-howto/build$ cmake ../
-- Build type not specified: defaulting to release.
-- [ /usr/share/cmake-2.8
On Thu, Mar 19, 2015 at 3:31 PM, rohin wrote:
> hello
>
> i got the exact same error
>
> i am following the guidlines given for OOT module given here-
> http://gnuradio.org/redmine/projects/gnuradio/wiki/OutOfTreeModules
>
>
> /rohin@rohin-Inspiron-5520:~/gr-howto/build$ cmake ../
> -- Build type
Hello:
Running examples from:
http://www.trondeau.com/examples/2014/1/23/pfb-channelizers-and-synthesizers.html
https://static.squarespace.com/static/543ae9afe4b0c3b808d72acd/543aee1fe4b09162d08633d9/543aee20e4b09162d086354d/1395272342027/fm_channelizer.grc
With the the following changes:
1)
ok, no progress, but here's what i've done so far. (all as per the
https://sdr.osmocom.org/trac/wiki/fosphor instructions)
sudo apt-get install cmake xorg-dev libglu1-mesa-dev
git clone https://github.com/glfw/glfw
cd glfw
mkdir build
cd build
cmake ../ -DBUILD_SHARED_LIBS=true
make
sudo make ins
Hi Marcus,
I later added a throttle and time scope to the tx end to see how large the
amplitude can be. Indeed, when the multiplier is 60m, the amplitude
increases beyond 1, which will be clipped by the USRP driver. Setting it to
be 0.45 seems like a safe choice.
For small amplitude cases such as
Thanks for the quick reply!
When I said splitting in the GUI I meant using the flowgraph (instead of
digging into the code) not using the sink FFT. As you say, I am using
the standalone block for the FFT and I want to split its output. Is
there any block to do so or any kind of snippet of code
On 03/19/2015 04:39 PM, Larry Van Der Jagt wrote:
Hello:
Running examples from:
http://www.trondeau.com/examples/2014/1/23/pfb-channelizers-and-synthesizers.html
https://static.squarespace.com/static/543ae9afe4b0c3b808d72acd/543aee1fe4b09162d08633d9/543aee20e4b09162d086354d/1395272342027/fm_c
On 19.03.2015 14:11, Henry Jin wrote:
Hi Marcus,
I later added a throttle and time scope to the tx end to see how large
the amplitude can be. Indeed, when the multiplier is 60m, the amplitude
increases beyond 1, which will be clipped by the USRP driver. Setting it
to be 0.45 seems like a safe ch
> I now run osmocom get this for my output:
>
> http://pastebin.com/SpWJKwBc
Pastebin :
- A full listing of all the files in your pybomb install (using find)
- The complete build logs of gr-fosphor (and no, I have no idea where
to find those, I never used pybombs, but it must put them somewhere)
Also :
> Next, because i have an intel integrated graphics controller in my laptop i
> chose the "Intel CPU OpenCL" option from the instructions
> i went to the link on the page, but it says that there is no standalone
> OpenCL SDK package anymore and that you have to download the "Intel Code
> Bu
Hi Martin,
Thanks for the FOSDEM 14 video on youtube (although maybe not posted by
you). Your talk is very informative and helpful.
On Thursday, March 19, 2015, Martin Braun wrote:
> On 19.03.2015 14:11, Henry Jin wrote:
>
>> Hi Marcus,
>>
>> I later added a throttle and time scope to the tx en
Tom,
I sincerely apologize if I have posted this email to the wrong location but
this is where the web page sent me.
I have forwarded my original email below and hope it shows up as you
expected.
Any info you can provide on this problem would be greatly appreciated.
Thanks!
Mike Heese
Forw
Tom,
I hope I put this question into the correct location on the Mailing List.
Thanks again for your rapid response!!
Mike H.
On Thu, Mar 19, 2015 at 7:24 PM, Mike Heese wrote:
> Tom,
>
> I sincerely apologize if I have posted this email to the wrong location
> but this is where the web page
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