Re: [Discuss-gnuradio] .so: undefined symbol: _ZN2gr6blocks12count_bits16E

Hi raf, I had similar problems when I was making OOT modules last summer. The problem with me was that I had not defined the destructor for my blocks in the .cc file. You can run cd /usr/local/lib/ nm libgnuradio-ieee_868_915.so | grep _ZN2gr6blocks12count_bits16Ej and see if this symbol is und

Re: [Discuss-gnuradio] WX GUI FFT sink on Raspberry Pi

Murat TA1DB wrote > Hi Jim, > ... > However my favorite modules Sinks (osmocom Sink) and Sources (osmoscom > Source, RTL_SDR Source) are missed. I also would like to install Gqrx; > Could > you please show me a similar safe way to add the missed modules and gqrx ? > ... > I have made many trials wi

[Discuss-gnuradio] Resolved: gr-perf-monitorx graphics

Got the graphics working on gr-perf-monitorx. Here's a list of packages, and the installation sequence needed to get it running on Ubuntu 13.10: sudo apt-get install  3 packages:   pip   (the python package installer)   graphviz   libgraphviz-dev Then pip install 2 packages:   networkx   p

Re: [Discuss-gnuradio] phase noise of RFX900 daughter board

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Pengyu, could you elaborate on your measurement procedure? What did you send on tx? 46dB attenuation does make sense in a output to input configuration, yet it is "only" about 30dB stronger than what I'd expect of crosstalk. Also: Did you use or by

Re: [Discuss-gnuradio] Getting pybombs to work with GR-LDPCree

Dear Marc and community, I copied the gr-ldpc.lwr file from https://github.com/manuts/gr-ldpc/blob/master/gr-ldpc.lwr and dropped it in ~/pybombs/recipes/. I then ran ./pybombs install gr-ldpc (after cleaning and removing the old files). — tjt7a@ubuntu:~/src/pybombs$ ./pybombs install gr-l

Re: [Discuss-gnuradio] .so: undefined symbol: _ZN2gr6blocks12count_bits16E

Thank you, I had the same error when I did sudo ldconfig. Can you give me an other suggestion. From: adi...@cs.nyu.edu Date: Mon, 10 Feb 2014 13:40:34 -0500 Subject: Re: [Discuss-gnuradio] .so: undefined symbol: _ZN2gr6blocks12count_bits16E To: bistrom...@gmail.com CC: raf...@hotmail.fr; discus

Re: [Discuss-gnuradio] .so: undefined symbol: _ZN2gr6blocks12count_bits16E

Hi Aditya, just in case the problem still exists, you might miss something like this in your cmake files https://github.com/bastibl/gr-ieee802-15-4/commit/a586256ad5e3fe1cf8c998a68a7276adf6e2d691 Best, Bastian On 10 Feb 2014, at 19:40, Aditya Dhananjay wrote: > You could also try "sudo ldco

Re: [Discuss-gnuradio] Getting pybombs to work with GR-LDPC

Dear List, I must add that I have been able to successfully install in GNU Radio version 3.7.2. I am just wondering what could be the reason for this error. On Mon, Feb 10, 2014 at 11:27 PM, Tommy Tracy II wrote: > Dear Gnuradio community, > > I'm trying to install gr-ldpc using pybombs, but

Re: [Discuss-gnuradio] .so: undefined symbol: _ZN2gr6blocks12count_bits16E

You could also try "sudo ldconfig". It looks like the linker can't find some required symbols. Happy hacking! On Mon, Feb 10, 2014 at 12:59 PM, Nick Foster wrote: > Usually a "make clean" will solve this. > > --n > > > On Mon, Feb 10, 2014 at 9:57 AM, raf raf wrote: > >> Hi all gnuradio users

Re: [Discuss-gnuradio] WX GUI FFT sink on Raspberry Pi

On Fri, Feb 7, 2014 at 9:25 PM, Wayne Roberts wrote: > Seems more viable to run it on a more modern cpu, such as > http://www.rtl-sdr.com/demonstrating-gqrx-running-beaglebone-black-rtl-sdr/ I would not completely discount performance of the Raspberry Pi - notably floating point performance again

[Discuss-gnuradio] Getting pybombs to work with GR-LDPC

Dear Gnuradio community, I’m trying to install gr-ldpc using pybombs, but I get the following error. I expect it has something to do with conflicting versions of pybombs and that someone has seen this before. Does anyone know how to set the swig path? I know where the required ‘gnuradio.i’ file

Re: [Discuss-gnuradio] .so: undefined symbol: _ZN2gr6blocks12count_bits16E

Usually a "make clean" will solve this. --n On Mon, Feb 10, 2014 at 9:57 AM, raf raf wrote: > Hi all gnuradio users, > > I have an error when I try to execute a python script after adding a new > block. > > My block is add to a gnuradio 3.7 with gr_modtool with a command : > > > gr_modtool add

[Discuss-gnuradio] .so: undefined symbol: _ZN2gr6blocks12count_bits16E

Hi all gnuradio users, I have an error when I try to execute a python script after adding a new block. My block is add to a gnuradio 3.7 with gr_modtool with a command : gr_modtool add -t sync packet_sinkThe module containing a blocks is ieee_868_915. The error is : Traceback (most recent c

Re: [Discuss-gnuradio] How does a C++ custom block kill the FlowGraph

On 10.02.2014 09:18, Tommy Tracy II wrote: Dear Gnuradio Community, I have some custom gnu radio blocks that make up my flow graph. I want one of my blocks to kill this flow graph (cause all blocks to call their destructors). When the source is computing its last set of inputs, I want it to let

[Discuss-gnuradio] How does a C++ custom block kill the FlowGraph

Dear Gnuradio Community, I have some custom gnu radio blocks that make up my flow graph. I want one of my blocks to kill this flow graph (cause all blocks to call their destructors). When the source is computing its last set of inputs, I want it to let all the other blocks know it’s tim

Re: [Discuss-gnuradio] Co-processor working group?

On Feb 10, 2014, at 10:05 AM, Philip Balister wrote: > Any updates? Nope. Maybe folks are working on this in secret? TTBOMK, there was some discussion and excitement directly after GrCon13, and then everyone found that we had other things that required our attention and so this got put on the

[Discuss-gnuradio] Co-processor working group?

Any updates? Philip ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Fwd: How to get t (time) to calculate output = sin ( 2 * PI * freq * t ) ?

"t" is the representation in continuous-time but in discrete time it can be represented in the form of sample-count (samp-rate must be known). nitems_written hold the number of items produced by the block on

Re: [Discuss-gnuradio] FOSDEM Talks online

On 02/10/2014 08:50 AM, Hans Van Ingelgom wrote: > Hello, > > I noticed that the talks of FOSDEM are online: > http://video.fosdem.org/2014/AW1125/Sunday/ I'm not certain these videos are final yet. I'll keep an eye on the devroom organizer list for more info. Philip > > The talk of Tom Rondea

[Discuss-gnuradio] FOSDEM Talks online

Hello, I noticed that the talks of FOSDEM are online: http://video.fosdem.org/2014/AW1125/Sunday/ The talk of Tom Rondeau is missing however, I hope nothing went wrong with the recording as it was a very nice one. It was a very interesting day, thanks to all the people who helped organizing this

[Discuss-gnuradio] How to get t (time) to calculate output = sin ( 2 * PI * freq * t ) ?

Dear Sir, I am building a custom block. How to know the time t, in seconds, of how long the flow graph has started? Says, I build a block of analog_sig_source_f. Its work() function may involve a variable t (time) as below: for ( int i=0; i < noutput_items; i++ ) { out[i] = ampl *

Re: [Discuss-gnuradio] Why does Airprobe no longer work with current GNU Radio?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Um, no, sorry, but I think it used to work with the same GR installations as OpenBTS in general, which IIRC was the now ancient 3.4.2. Sadly, the ccc's SVN browser doesn't talk to me, so I can't have a look right now. As to the useful GR features it c

Re: [Discuss-gnuradio] Why does Airprobe no longer work with current GNU Radio?

I tried building airprobe with the latest 3.6 build (3.6.5.1) and even that failed. Can someone probably point us to a gnuradio version that definitely works with airprobe ? regards, Mark On 10/02/14 02:54, JIANG Pin A wrote: > Hi, > > I met the same problem with airprobe and GNU Radio 3.