Re: [Discuss-gnuradio] Re: transmission from usrp1 vs. usrp2
YES. I also found this fact that the dynamic ranges of two usrps are so different, just in these days. Furthermore, the range of usrp.source_32fc is also +-1.0, right? Because I found the sample amplitude is very small when I use usrp2_fft.py observe the same RF input on USRP2, compared with usrp_fft.py on USRP. Lin 2009/8/11, Johnathan Corgan : > > On Tue, 2009-08-11 at 09:38 -0600, Jordan J Riggs wrote: > > > Here is the FFT output of the two devices. > > This looks like gain compression or even clipping on the USRP2. > > The dynamic range of samples to be sent to the usrp.sink_c block for the > USRP1 is +- 32767. > > The dynamic range of samples to be sent to the usrp2.sink_32fc block for > the USRP2 is +-1.0. > > In either case, the RFX boards go into gain compression in the upper 20 > dB or so of their transmit range, so if you have a modulation which > requires linear frequency response (e.g., filtered BPSK), you need to > restrict the sample amplitude to +- 3000 or so for USRP1 and += 0.1 or > so for USRP2. > > If you are in fact sending the same actual sample range valid for the > USRP1 (+-32767) into the USRP2 sink, you will of course get severe > distortion as the sink will clip this to a +-1.0 square wave. > > Johnathan > > > > ___ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] How to deal with discrepancy in sample rate? (44.1Hz from a wavform, etc)
Ok, so my goal is to be able to use a wav file and then fm modulate it, and store the result in a .dat file containing complex samples that could then be demodulated by an fm demodulator I have. But I'm running into a couple of problems! Usually, the iconic sample rate seems to be 320KHz, and an audio_sink usually is set to 32KHz. However, the wavfile_source block has a sample_rate() attribute, and its about 44100. I didn't think that this would matter, except that when calling the fm modulator fmtx = blks2.nbfm_tx (audio_sample, file_sample, max_dev=5e3, tau=75e-6) it seems I have to set the sample rate (file_sample) equal to an integer multiple of the audio_sample rate...this makes intuitive sense, but it won't let me go as large as I want? At 10*audio_sample (when audio_sample is 44100), I get an insufficient extremals error... but if the audio sample rate is 32000, I can set the sample rate arbitrarily high! Related to this is the question of demodulation. Usually, you want to be symmetric in your sample rates and all that...but given I'll be demodulating this signal via FM and probably going to a audio_sink (which has a sample rate of 32000? or can I also instantiate it with a sample rate that is higher?) I'm not sure how I can deal with the discrepancy between the two. Your help is greatly appreciate! ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] C++ modules of GNU Radio
Well, what I am trying to acheive is this: I want to port a only C++ module of GNU Radio to this tool I am working on in Windows and see its compliance. By compliance, I mean just see what kind of errors does this tool give me, for example what features of C++ are not supported like templates, etc. so that I can work on them and get rid of those errors and hopefully make GNU Radio completely compliant with it one day..so the first logical step is to make my tool compliant with the C++ standards used in GNU Radio.and then move on to the next step...I know it will take a long time but is the most logical in my case .I hope this answers your doubt. On Tue, Aug 11, 2009 at 5:25 PM, Eric Blossom wrote: > On Tue, Aug 11, 2009 at 04:58:36PM -0500, Himanshu Thapar wrote: > > Hello Everyone, > > > > I am new to GNU Radio and was wondering if anyone can guide me to the > only > > C++ modules of GNU Radio. I am actually trying to port these modules in > > Windows in a commercial compiler and seeing what errors I run into. I am > > basically trying to study the compliance issues I run across, so I can go > > ahead and work on them in the tool and get rid of them. > > > > Thanks. > > Have you looked at the code? > If so, what questions do you have? > > Eric > ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] scope display bug? distortion of sine wave at high frequency
what is the sample rate of your signal source? If its samp_rate, which defaults to 32KHz, then the plots attached make perfect sense. -Josh Milo Wong wrote: Hi all, I found sine waves will be terribly distorted when they are generated at relatively high frequency(above 5khz) from signal source in GRC. I set the sampl_rate of scope sink to 2Ghz(high enough, I think), and there are always spikes on generated sine wave. This problem is especially distinct when generated sine wave reaches 20Khz and the waveform displayed on scope sink is almost "saw wave". There will be nothing to dispaly if I keep on increasing frequency to 1Mhz. Is there anybody who met this problem before? or it might only be the display problem in GRC? I guess it might be the problem of scope sink which could not achieve that high sweep (sampling) rate even I set it correctly. Attached are snapshot of generated sine waves at different frequencies: Your comments will be very much appreciated. Thanks, Milo ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] C++ modules of GNU Radio
On Tue, Aug 11, 2009 at 04:58:36PM -0500, Himanshu Thapar wrote: > Hello Everyone, > > I am new to GNU Radio and was wondering if anyone can guide me to the only > C++ modules of GNU Radio. I am actually trying to port these modules in > Windows in a commercial compiler and seeing what errors I run into. I am > basically trying to study the compliance issues I run across, so I can go > ahead and work on them in the tool and get rid of them. > > Thanks. Have you looked at the code? If so, what questions do you have? Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] C++ modules of GNU Radio
Hello Everyone, I am new to GNU Radio and was wondering if anyone can guide me to the only C++ modules of GNU Radio. I am actually trying to port these modules in Windows in a commercial compiler and seeing what errors I run into. I am basically trying to study the compliance issues I run across, so I can go ahead and work on them in the tool and get rid of them. Thanks. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Using scope in benchmark_tx to see signals before and after modulation
On Tue, Aug 11, 2009 at 02:18:15PM -0700, udadidd wrote: > > sure i can do that. > But my connections are like this. > self.connect(module A, module B) self.conenct(module B, module C) self.connect(module B, file_sink.1) self.connect(module C, module D) self.connect(module C, file_sink2) ... Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Using scope in benchmark_tx to see signals before and after modulation
On Tue, Aug 11, 2009 at 02:19:02PM -0700, udadidd wrote: > > Sorry, Thats PORT B ALREADY in USE An output port may have any number of inputs connected to it. Eric > udadidd wrote: > > > > sure i can do that. > > But my connections are like this. > > > > self.connect(module A, module B, file_sink.1) > > self.connect(module A,module B, module C) > > > > self.connect (module C, module D, file_sink.2 ) > > self.connect (module C, module D, module E) > > > > > > So now if i try to insert file in between my connections, it says, the > > port C already in use!! > > So is there a way i can tap the data at these points? > > > > > > > > > > > > Eric Blossom wrote: > >> > >> On Tue, Aug 11, 2009 at 08:59:23AM -0700, udadidd wrote: > >>> > >>> hi > >>> i want to see the signals on the scope before and after modulation. but > >>> the > >>> transmit_path.py use hier_block2 and benchmark_tx use top_block. can any > >>> one > >>> kindly help on where should i go ahead and make changes? > >> > >> May I suggest logging the data to a file using gr.file_sink(...) > >> then examining it using octave, scipy, ... > >> > >> Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Using scope in benchmark_tx to see signals before and after modulation
Sorry, Thats PORT B ALREADY in USE udadidd wrote: > > sure i can do that. > But my connections are like this. > > self.connect(module A, module B, file_sink.1) > self.connect(module A,module B, module C) > > self.connect (module C, module D, file_sink.2 ) > self.connect (module C, module D, module E) > > > So now if i try to insert file in between my connections, it says, the > port C already in use!! > So is there a way i can tap the data at these points? > > > > > > Eric Blossom wrote: >> >> On Tue, Aug 11, 2009 at 08:59:23AM -0700, udadidd wrote: >>> >>> hi >>> i want to see the signals on the scope before and after modulation. but >>> the >>> transmit_path.py use hier_block2 and benchmark_tx use top_block. can any >>> one >>> kindly help on where should i go ahead and make changes? >> >> May I suggest logging the data to a file using gr.file_sink(...) >> then examining it using octave, scipy, ... >> >> Eric >> >> >> ___ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> > > -- View this message in context: http://www.nabble.com/Is-it-possible-to-change-ADC-DAC-rates--tp24178434p24925956.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Using scope in benchmark_tx to see signals before and after modulation
sure i can do that. But my connections are like this. self.connect(module A, module B, file_sink.1) self.connect(module A,module B, module C) self.connect (module C, module D, file_sink.2 ) self.connect (module C, module D, module E) So now if i try to insert file in between my connections, it says, the port C already in use!! So is there a way i can tap the data at these points? Eric Blossom wrote: > > On Tue, Aug 11, 2009 at 08:59:23AM -0700, udadidd wrote: >> >> hi >> i want to see the signals on the scope before and after modulation. but >> the >> transmit_path.py use hier_block2 and benchmark_tx use top_block. can any >> one >> kindly help on where should i go ahead and make changes? > > May I suggest logging the data to a file using gr.file_sink(...) > then examining it using octave, scipy, ... > > Eric > > > ___ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- View this message in context: http://www.nabble.com/Is-it-possible-to-change-ADC-DAC-rates--tp24178434p24925944.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Re: OSX configure error
Are you installing from the tarball or from the svn repository? If it's the former, you shouldn't bootstrap. If it's the latter, you should, but there is a special command you need to create for it. https://radioware.nd.edu/documentation/install-guides/mac-os-x/obtaining-and-installing-gnu-radio sed -e 's...@libtool@glibt...@g' bootstrap > bootstrap_mp && sh bootstrap_mp 2009/8/11 Josef Vukovic > I have resolved this porblem. > The error don't appear when the ./bootstrap script is not run > before the ./configure script is run. > So don't make a configure scritpt with ./bootstrap instead run > simply ./configure. > > cu > Josef Vukovic > > 2009/8/6 Josef Vukovic > > Hello all, >> >> I am trying to install GNU-Radio on my PowerBook G4 1.67GHz with OS X >> 10.4.11 >> I read the OS X build instructions from RadioWare. But get error during >> the installation >> of the dependent packages from Macports. I can't install the sdcc >> compiler, so that is >> not the problem because I am a GNURadio beginner and for the first time I >> don't need >> the usrp part of GNU-Radio. So I type in ./configure --disabel-usrp the >> problem is that >> the configure script quit with the error: >> >> configure: error: cannot find usable Python headers >> >> But the Python interpreter is installed and is working: >> >> q68f0:~/gnuradio josefvukovic$ python >> Python 2.5.4 (r254:67916, Aug 6 2009, 10:03:18) >> [GCC 4.0.1 (Apple Computer, Inc. build 5370)] on darwin >> Type "help", "copyright", "credits" or "license" for more information. >> >>> quit >> Use quit() or Ctrl-D (i.e. EOF) to exit >> >>> >> q68f0:~/gnuradio josefvukovic$ >> >> >> Could someone be so kind to give me a hint what can I do :-( >> >> cu >> Josef Vukovic >> > > > ___ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] WBX0510 daughterboard
Hi People, Do anyone have any news about the WBX0510? Thanks in advance, Rafael Diniz ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] DVB-T
I know that Vincenzo Pellegrini (and possibly others) had a working DVB-T implementation for GNU Radio, but all the links I find are dead. Can someone point me to the latest code or web page? Thanks, Matt ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Questions about data type conversion in GRC. (ADC, encoder)
Hi Colin, Thank you for your reply! What I am going to design is to separate the float output from audio source into several branches for later 8b/10 encoding on each branch. So before encoding, I was wondering if the data after "stream to streams" is already byte type (or in bits) . As you said "The samples from an audio source as well as other GNU radio source, have already been digitized", is that means I could directly apply any bits operation (like an 8b/10b encoding) on the output samples from audio source or from output of "stream to streams" block? To test the result, I put a couple of file sinks after audio source and "stream to streams" conversion block(all I/O ports are float type), but the data I gathered in the file are hex. Even though I got the digitized data as I want, I am quite confused about the reason for that. I'll appreciate your explanation. Thank you, Milo Hi all, Hope you guys had a great weekend. I have a question about the data type between gnuradio blocks. 1)I used "stream to streams" block in GRC to de-multiplex the output of audio source which type is float and drops in the range of (-1,+1), I was wondering what is the type of data after "stream to streams"(de-multiplex)? In my flow graph, all of the I/O type of blocks in GRC are float, however, if I put the data streams into file sinks which input type is also float, the data I gathered are hex. Why? I used "Bless" hex editor software to open the file. Is that means the "bless" helped me with the type converting? 2) I do need the the bits(or byte) data after demultiplexing for later digital signal processing, but there's no ADC in GRC which could help me with converting the float data between (-1,+1) to bits (byte). How could I achieve this conversion? 3) BTW, what is the difference between "stream to streams" and "de-interleave" blocks. It seems that they have the same outputs. Thank you very much! Milo --- Message: 20 Date: Fri, 07 Aug 2009 18:19:12 -0500 From: Colin Stagner Subject: Re: [Discuss-gnuradio] Questions about data type conversion in GRC. (ADC, encoder) To: discuss-gnuradio@gnu.org Message-ID: <4a7cb670.3060...@gmail.com> Content-Type: text/plain; charset=UTF-8 Milo Wong wrote: > So, I am going to encode the analog output of audio source(float, -1 > to +1 ??) to digital bit streams(byte) for digital signal Processing > later on. What exactly are you trying to accomplish? The samples you get from an audio source, like any other GNU radio source, have already been digitized. Are you trying to extract a modulated signal that contains digital data (i.e. FSK, PSK) from your audio source? > But I found there's no ADC or encoder in GRC which could properly > convert float: -1~+1 to Byte: 00~FF. Is there any way to achieve that? If you're just looking to convert floats to bytes, use either gr.float_to_char (range -128 to 127) or gr.float_to_uchar (range 0 to 255). However, be aware that you will lose a lot of dynamic range—the input is converted to a long integer first, then clipped. You will need to scale your signal by adding 1 and dividing by 2/255 before you convert it. You ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Using scope in benchmark_tx to see signals before and after modulation
On Tue, Aug 11, 2009 at 08:59:23AM -0700, udadidd wrote: > > hi > i want to see the signals on the scope before and after modulation. but the > transmit_path.py use hier_block2 and benchmark_tx use top_block. can any one > kindly help on where should i go ahead and make changes? May I suggest logging the data to a file using gr.file_sink(...) then examining it using octave, scipy, ... Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] GNURadio Mail Distribution Problem
On Mon, Aug 10, 2009 at 20:02, Firas A. wrote: > From about three days, gnuradio.org seems to stop sending the commit files. > For me, the last revision received was 11546. This was a server configuration error (caused by yours truly); Eric just fixed it. Johnathan ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] GNURadio Mail Distribution Problem
On Mon, Aug 10, 2009 at 08:02:45PM -0700, Firas A. wrote: > > Hi, > > From about three days, gnuradio.org seems to stop sending the commit files. > For me, the last revision received was 11546. > > > BR > Firas It's fixed now. Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] How to properly generate documentation, and find the files behind the code?
On Mon, Aug 10, 2009 at 05:29:27PM -0400, Jonathan Coveney wrote: > Howdy, > > I want to better understand certain blocks... such as what the parameters of > optfir.low_pass actually specify, how it's implemented, that sort of thing. > But the gnuradio filetree is next to impossible to traverse. > > I have been pointed here > /usr/local/share/doc/gnuradio-3.3svn/html/index.html > > which is definitely useful, but seems to be generated automatically off of > header files, and doesn't link you to the actual source code, which I cannot > find. > > I'm sure this exists, just not sure how to grab it. Thoughts? > > Thanks > -Jonathan If you haven't downloaded the source code, please do. http://gnuradio.org/trac/wiki/Download There are _many_ tools available for browsing source code. Try grep or etags to start. Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] [Viterbi decoder]
Is there any way to use the viterbi decoder without using any modulation? I read the documentation and it seems that there is no way, but I want to be sure that there isn't any possibility. Thank you -- View this message in context: http://www.nabble.com/-Viterbi-decoder--tp24921515p24921515.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Using scope in benchmark_tx to see signals before and after modulation
hi i want to see the signals on the scope before and after modulation. but the transmit_path.py use hier_block2 and benchmark_tx use top_block. can any one kindly help on where should i go ahead and make changes? -- View this message in context: http://www.nabble.com/Is-it-possible-to-change-ADC-DAC-rates--tp24178434p24920490.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Re: transmission from usrp1 vs. usrp2
On Tue, 2009-08-11 at 09:38 -0600, Jordan J Riggs wrote: > Here is the FFT output of the two devices. This looks like gain compression or even clipping on the USRP2. The dynamic range of samples to be sent to the usrp.sink_c block for the USRP1 is +- 32767. The dynamic range of samples to be sent to the usrp2.sink_32fc block for the USRP2 is +-1.0. In either case, the RFX boards go into gain compression in the upper 20 dB or so of their transmit range, so if you have a modulation which requires linear frequency response (e.g., filtered BPSK), you need to restrict the sample amplitude to +- 3000 or so for USRP1 and += 0.1 or so for USRP2. If you are in fact sending the same actual sample range valid for the USRP1 (+-32767) into the USRP2 sink, you will of course get severe distortion as the sink will clip this to a +-1.0 square wave. Johnathan ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] USB writing problem
I'll check out the /var/log/messages the next time it happens. --- Harvind On Mon, 2009-08-10 at 11:04 -0700, Eric Blossom wrote: > On Mon, Aug 10, 2009 at 10:48:57AM -0700, Harvind Samra wrote: > > We've occasionally encountered cases, while running OpenBTS, where the > > USRP code hang up and starts spitting out the following message > > repeatedly: > > > > short write xfer: 0 != 3584 > > > > In looking at fusb_linux.cc, it looks like USB writes suddenly cease to > > complete. Sometimes, the host machine hangs so badly that a reboot is > > needed. > > > > I know USB on linux has always had problems. So my questions are: > > > > 1) Is this problem specific to the USRP or does it have to do with > > libusb? > > 2) Is the specific to certain USB controllers? > > 3) Has this bug been addressed in recent updates/releases to gnuradio? > > > > Any help is appreciated. Thanks. > > > > Harvind Samra > > Kestrel Signal Processing, Inc. > > Hi Harvind! > > I've never seen this error. > Have you checked the kernel logs? > /var/log/messages is probably a good place to start. > > Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] How to simultaneously tx/rx on usrp with OFDM?
> There are several problems I am facing now(sorry, I am not a good programmer, > maybe they are silly questions): > 1. I am trying to use different threads to receive packets and transmit > packets. Although I used "global killed" and "sys.exit(1)" to make sure > threads exit when Ctrl-C pressed, it won't abort to the command line. > > 2. As I said I need to combine received packets and locally generated packets > at transmitting, but I didn't figure out how to achieve that. I am thinking > of > make a global variable payload_all[], and just throw every packets into it, > then use send_pkts to transmit the payload while receiving packets from > others > in another thread. Is that possible? > > 3. The blocks transmit_path and receive_path I think are both having only 1 > connector in the graph. Is there any easy way to connect these two parts? Or > is there any other blocks that I can use to make this kind of connection? > > Any related suggestion will be appreciated. > Hi, Have you had a look at gr_message_sink/source? I think they might be a good substitute to the global "payload_all[]". Just my uninitialized and very quick thoughts... BR //Mattias ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] How to simultaneously tx/rx on usrp with OFDM?
Hi, Basically I want to do following things on one usrp node. 1. receive packets from one other node 2. relay the packets received 3. transmit packets generated locally So my idea is to get the packets through usrp_src and receive_path, then put the received packets and locally generated packets together into payload, then use send_pkts() to sendout packets through transmit_path and usrp_snk. There are several problems I am facing now(sorry, I am not a good programmer, maybe they are silly questions): 1. I am trying to use different threads to receive packets and transmit packets. Although I used "global killed" and "sys.exit(1)" to make sure threads exit when Ctrl-C pressed, it won't abort to the command line. 2. As I said I need to combine received packets and locally generated packets at transmitting, but I didn't figure out how to achieve that. I am thinking of make a global variable payload_all[], and just throw every packets into it, then use send_pkts to transmit the payload while receiving packets from others in another thread. Is that possible? 3. The blocks transmit_path and receive_path I think are both having only 1 connector in the graph. Is there any easy way to connect these two parts? Or is there any other blocks that I can use to make this kind of connection? Any related suggestion will be appreciated. I posted my small test codes online(http://www.sendspace.com/file/6n64co), if you can take a look at it and give me some suggestion, that will be awsome. Thanks a lot. Yan Wang ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Re: OSX configure error
I have resolved this porblem. The error don't appear when the ./bootstrap script is not run before the ./configure script is run. So don't make a configure scritpt with ./bootstrap instead run simply ./configure. cu Josef Vukovic 2009/8/6 Josef Vukovic > Hello all, > > I am trying to install GNU-Radio on my PowerBook G4 1.67GHz with OS X > 10.4.11 > I read the OS X build instructions from RadioWare. But get error during the > installation > of the dependent packages from Macports. I can't install the sdcc compiler, > so that is > not the problem because I am a GNURadio beginner and for the first time I > don't need > the usrp part of GNU-Radio. So I type in ./configure --disabel-usrp the > problem is that > the configure script quit with the error: > > configure: error: cannot find usable Python headers > > But the Python interpreter is installed and is working: > > q68f0:~/gnuradio josefvukovic$ python > Python 2.5.4 (r254:67916, Aug 6 2009, 10:03:18) > [GCC 4.0.1 (Apple Computer, Inc. build 5370)] on darwin > Type "help", "copyright", "credits" or "license" for more information. > >>> quit > Use quit() or Ctrl-D (i.e. EOF) to exit > >>> > q68f0:~/gnuradio josefvukovic$ > > > Could someone be so kind to give me a hint what can I do :-( > > cu > Josef Vukovic > ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
