[Discuss-gnuradio] GNU Radio repository master branch is now 3.6.0git

The GNU Radio master branch has had the next branch merged back into it, and is now 3.6.0git. A change log has been started at: http://gnuradio.org/redmine/projects/gnuradio/wiki/ChangeLogV3_6 The next branch has been deleted; we will go 'nextless' in the short-term while things get prepared for

Re: [Discuss-gnuradio] digital_correlate_access_code_bb

On Sat, Apr 7, 2012 at 10:12 PM, Marcus D. Leech wrote: > Here's a little beauty of a code snippet: > >  d_access_code = 0; >  for (unsigned i=0; i < 64; i++){ >    d_access_code <<= 1; >    if (i < len) >      d_access_code |= access_code[i] & 1;    // look at LSB only >  } The piece was committ

[Discuss-gnuradio] GNU Radio release 3.5.3 available for download

GNU Radio release version 3.5.3 is now available for download: http://gnuradio.org/redmine/attachments/download/320/gnuradio-3.5.3.tar.gz http://gnuradio.org/redmine/attachments/download/321/gr-howto-write-a-block-3.5.3.tar.gz The release notes are here: http://gnuradio.org/redmine/projects/gnur

[Discuss-gnuradio] digital_correlate_access_code_bb

Just looking at this function: correlate_access_code_bb In the method set_access_code, it takes a string. Which should be ASCII '1' and '0' characters to represent the binary sequence being correlated against. Here's a little beauty of a code snippet: d_access_code = 0; for (unsigned i

Re: [Discuss-gnuradio] GNU Radio Windows Port Up and Running, no gr-audio / gr-fcd

Drat, misread the version numbers that explains gr-fcd, still no luck on gr-audio though unless it ended up in a different place somehow. Pretty new to gnuradio, currently have a the dial_tone.grc working with an output to a wave file and that's about it. If sliders mean moving the blocks around

Re: [Discuss-gnuradio] GNU Radio Windows Port Up and Running, no gr-audio / gr-fcd

On 04/07/2012 05:58 PM, Adam Gunderson wrote: > Have the windows port up and running using the method below but I have a > few questions. > > Found Josh Blum's directions for install the GNU Radio windows here: > http://code.ettus.com/redmine/ettus/projects/uhd/wiki/GNURadio_Windows > Also: Di

Re: [Discuss-gnuradio] GNU Radio Windows Port Up and Running, no gr-audio / gr-fcd

On Sat, Apr 7, 2012 at 17:58, Adam Gunderson wrote: > However, it seems like certain GNU Radio packages are missing from the > 3.5.2.1 windows install, mainly the Funcube (gr-fcd) and Audio (gr-audio). Release 3.5.2.1 does not contain the gr-fcd top-level component. It was added to the master b

Re: [Discuss-gnuradio] GNU Radio Windows Port Up and Running, no gr-audio / gr-fcd

> Reading some old posts I think someone was looking for a PyQwt version that > worked with Python2.7, found this > here, > from > this forum post: > http://comments.gmane.org/gmane.comp.graphics.qwt.python/388 > Cool. I will have to

[Discuss-gnuradio] GNU Radio Windows Port Up and Running, no gr-audio / gr-fcd

Have the windows port up and running using the method below but I have a few questions. Found Josh Blum's directions for install the GNU Radio windows here: http://code.ettus.com/redmine/ettus/projects/uhd/wiki/GNURadio_Windows Downloaded GNU Radio Binary from here

[Discuss-gnuradio] WBFM PLL demodulator block

I was doing some experiments with this block this evening, and what I discovered was that it requires a much better-quality signal to produce even half-way decent audio output than my "first principles" FM stereo decoder in my "simple_fm_rcv" application. The PLL block uses a PLL to derive t

[Discuss-gnuradio] Gnuradio Screencast for Absolute Beginners

Hi Community, I have uploaded screencast of some very basic things for the beginners in gnuradio like installing gnuradio, finding common examples of usrp, uhd, utilities etc. Also getting information about usrp's / daughterboards, antennas, burning SD card etc. Here is the link http://www.you

Re: [Discuss-gnuradio] [discuss-gnuradio]ofdm sync using only one preamble in gnuradio example benchmark_tx.py and benchmark_rx.py

Hi Tom, Just correct my mail. I retest the case, it is found that my matlab code has some errors which cause this confusion. Sorry for the incorrect result. On Tue, Apr 3, 2012 at 12:43 AM, Alex Zhang wrote: > Hi Tom, > > To dig the details of the current ofdm receiver synchronization, i did >

Re: [Discuss-gnuradio] Segmentation fault in volk_32f_s32f_multiply_32f_a_sse

On 04/07/2012 02:47 PM, Tom Rondeau wrote: And thanks for being able to check it quickly! The fix has been merged into the code. Just in time for 3.5.3, too (whew). Tom I've observed on other fora: all code starts out rather rough. It's only through use, bug reports, and subsequent fixes th

Re: [Discuss-gnuradio] Segmentation fault in volk_32f_s32f_multiply_32f_a_sse

On Sat, Apr 7, 2012 at 1:08 PM, Alexandru Csete wrote: > On Sat, Apr 7, 2012 at 7:07 PM, Alexandru Csete wrote: >> On Sat, Apr 7, 2012 at 5:35 PM, Tom Rondeau wrote: >>> On Sat, Apr 7, 2012 at 10:19 AM, Alexandru Csete wrote: On Sat, Apr 7, 2012 at 4:13 PM, Tom Rondeau wrote: > On Sat

Re: [Discuss-gnuradio] segfault and gr-fcd

Oh, tricky Patrik - Original Message - From: "Alexandru Csete" To: "Patrik Tast" Cc: Sent: Saturday, April 07, 2012 20:37 Subject: Re: [Discuss-gnuradio] segfault and gr-fcd Interesting, because it seems to be the other way around with the funcube dongle, i.e. 1.0.8 works and

Re: [Discuss-gnuradio] segfault and gr-fcd

Interesting, because it seems to be the other way around with the funcube dongle, i.e. 1.0.8 works and 1.0.9-rc crashes. Note though that when you compile yourself you will use 0.1 Alex On Sat, Apr 7, 2012 at 6:46 PM, Patrik Tast wrote: > Hi All, > > As mentioned, could this be a libusb problem

Re: [Discuss-gnuradio] segfault and gr-fcd

Glad to hear yo have better luck with libusb 1.0.8. Concerning the errors you see, I don't know how severe they are. There are two layers between gr-fcd and libusb and I have knowledge only with the higher levels. Alex On Sat, Apr 7, 2012 at 5:59 PM, Volker Schroer wrote: > Downgrading to libusb

Re: [Discuss-gnuradio] Segmentation fault in volk_32f_s32f_multiply_32f_a_sse

On Sat, Apr 7, 2012 at 7:07 PM, Alexandru Csete wrote: > On Sat, Apr 7, 2012 at 5:35 PM, Tom Rondeau wrote: >> On Sat, Apr 7, 2012 at 10:19 AM, Alexandru Csete wrote: >>> On Sat, Apr 7, 2012 at 4:13 PM, Tom Rondeau wrote: On Sat, Apr 7, 2012 at 9:48 AM, Alexandru Csete wrote: > Greeti

Re: [Discuss-gnuradio] Segmentation fault in volk_32f_s32f_multiply_32f_a_sse

On Sat, Apr 7, 2012 at 5:35 PM, Tom Rondeau wrote: > On Sat, Apr 7, 2012 at 10:19 AM, Alexandru Csete wrote: >> On Sat, Apr 7, 2012 at 4:13 PM, Tom Rondeau wrote: >>> On Sat, Apr 7, 2012 at 9:48 AM, Alexandru Csete wrote: Greetings, I'm getting segmentation faults in a C++ applic

Re: [Discuss-gnuradio] segfault and gr-fcd

Hi All, As mentioned, could this be a libusb problem (conflict)? When running F14 I could not run any USB gadget many minutes. I got error "Disconnected" Tried the same gadgets on Fedora 16 and all works infinitely (wont disconnect). My libusb versions are shown by executing $ rpm -qa | grep

Re: [Discuss-gnuradio] USRP inserts a peak in the carrier frequency

Oops. problem solved. I had to increase the LO offset in the transmitter (not the receiver)! *Facepalm* Thanks for the support mleech wrote: > > On 07/04/12 10:12 AM, frankist wrote: >> Hi, >> >> I am using GNU Radio for 2 weeks. I always get in the receiver side a >> signal >> with a peak in

Re: [Discuss-gnuradio] USRP inserts a peak in the carrier frequency

Ok forget, I had to remove the lo offset from the transmitter and not from the receiver! (facepalm) There are still some minor peaks but I think I can remove them using the same proccess frankist wrote: > > Hmm, I tried to use this to change the LO offset: > self.signal_source_0.set_center_fre

Re: [Discuss-gnuradio] segfault and gr-fcd

Downgrading to libusb-1.0.8 solved the problem. I only see some messages like libusb:error [libusb_cancel_transfer] cancel transfer failed error -5 libusb:error [libusb_cancel_transfer] cancel transfer failed error -5 libusb:error [libusb_cancel_transfer] cancel transfer failed error -5 aUaUaUaU

Re: [Discuss-gnuradio] segfault and gr-fcd

Hi Alex, thank you for the quick response. Hi Volker, Although using a slider to tune hardware pll is a bad idea, I don't think the crash you see is because of that. It sounds more like an issue some people have seen on debian with libusb 1.0.9-pre-something Which version of libusb do you have

Re: [Discuss-gnuradio] USRP inserts a peak in the carrier frequency

Hmm, I tried to use this to change the LO offset: self.signal_source_0.set_center_freq(uhd.tune_request(self.freq+self.freq_offset,self.lo_off)) However, now I have a new peak and this peak doesn't disappear when I turn off the transmitter. I am using a USRP2 and XCVR2450 mleech wrote: > > O

Re: [Discuss-gnuradio] USRP inserts a peak in the carrier frequency

mleech wrote: > > On 07/04/12 10:12 AM, frankist wrote: >> Hi, >> >> I am using GNU Radio for 2 weeks. I always get in the receiver side a >> signal >> with a peak in the carrier frequency when I turn on the transmitter even >> if >> I send a signal made of zeros. You can see it in the picture

Re: [Discuss-gnuradio] Segmentation fault in volk_32f_s32f_multiply_32f_a_sse

On Sat, Apr 7, 2012 at 10:19 AM, Alexandru Csete wrote: > On Sat, Apr 7, 2012 at 4:13 PM, Tom Rondeau wrote: >> On Sat, Apr 7, 2012 at 9:48 AM, Alexandru Csete wrote: >>> Greetings, >>> >>> I'm getting segmentation faults in a C++ application when I restart >>> the flow graph, i.e by doing: >>>

Re: [Discuss-gnuradio] segfault and gr-fcd

On Sat, Apr 7, 2012 at 4:21 PM, Volker Schroer wrote: > Hi all, > > I'm just using the gr-fcd block with an funcube dongle on a gentoo linux > system. > > When I try to change the frequency of the dongle by an slider I get the > following segfault: > > ... Hi Volker, Although using a slider to t

Re: [Discuss-gnuradio] USRP inserts a peak in the carrier frequency

On 07/04/12 10:12 AM, frankist wrote: > Hi, > > I am using GNU Radio for 2 weeks. I always get in the receiver side a signal > with a peak in the carrier frequency when I turn on the transmitter even if > I send a signal made of zeros. You can see it in the picture > http://old.nabble.com/file/p33

[Discuss-gnuradio] segfault and gr-fcd

Hi all, I'm just using the gr-fcd block with an funcube dongle on a gentoo linux system. When I try to change the frequency of the dongle by an slider I get the following segfault: [ 633.104902] usb 1-5.1: link qh1-0e01/8801251cba00 start 0 [1/3 us] [ 633.105563] ehci_hcd :00:12.2

Re: [Discuss-gnuradio] Segmentation fault in volk_32f_s32f_multiply_32f_a_sse

On Sat, Apr 7, 2012 at 4:13 PM, Tom Rondeau wrote: > On Sat, Apr 7, 2012 at 9:48 AM, Alexandru Csete wrote: >> Greetings, >> >> I'm getting segmentation faults in a C++ application when I restart >> the flow graph, i.e by doing: >> >> tb->start() >>  ... >> tb->stop() >> tb->wait() >> ... >> tb->

[Discuss-gnuradio] Debugging Python apps

There have been a few issues popping up on the mailing list about crashes and segfaults. My general response has been to point to our Wiki's FAQ page about debugging in Python to give us a backtrace to help us understand where the problem lies. Max Parke just sent me a write-up from their OP25 proj

Re: [Discuss-gnuradio] Segmentation fault in volk_32f_s32f_multiply_32f_a_sse

On Sat, Apr 7, 2012 at 9:48 AM, Alexandru Csete wrote: > Greetings, > > I'm getting segmentation faults in a C++ application when I restart > the flow graph, i.e by doing: > > tb->start() >  ... > tb->stop() > tb->wait() > ... > tb->start() > (crashes) > > Running the application through a debugge

[Discuss-gnuradio] USRP inserts a peak in the carrier frequency

Hi, I am using GNU Radio for 2 weeks. I always get in the receiver side a signal with a peak in the carrier frequency when I turn on the transmitter even if I send a signal made of zeros. You can see it in the picture http://old.nabble.com/file/p33648622/usrp_carrier_peak.png In spite of being

[Discuss-gnuradio] Segmentation fault in volk_32f_s32f_multiply_32f_a_sse

Greetings, I'm getting segmentation faults in a C++ application when I restart the flow graph, i.e by doing: tb->start() ... tb->stop() tb->wait() ... tb->start() (crashes) Running the application through a debugger suggests it is volk_32f_s32f_multiply_32f_a_sse which is used by a gr_multiply_

Re: [Discuss-gnuradio] Update: RTL2832 re-written (better GRC block, librtl2832++) & works with OP25 digital radio!

Thanks for testing Alex! I know it works for you now, but just in case others have experienced the same problem, please update your code. The latest has support for the four major tuners (with auto-probing), and some more devices too. Balint From: discuss-gnuradio-bounces+balint256=gma