Re: [Discuss-gnuradio] Error: /media/Softwares & Data/UBUNTU DOWNLOADS/top_block.py:1:1:FATAL:PARSER:ERR_DOCUMENT_EMPTY: Start tag expected, '<' not found

Hi Ali, we're always thankful for feedback; the information you supply is a little sparse. Usually, I'd ask you to refer to http://gnuradio.org/redmine/projects/gnuradio/wiki/ReportingErrors , but in this case, things are easy enough to guess just from your wording: > When i execute a GRC file

Re: [Discuss-gnuradio] Frequency modulation in GRC

ok got it On Mon, May 26, 2014 at 11:40 AM, Marcus Müller wrote: > Hi Ali, > > I'm talking about > > http://gnuradio.org/doc/doxygen/classgr_1_1analog_1_1frequency__modulator__fc.html > > This is the and thus only comprehensive documentation. > But really, all this block does is, like I in text

Re: [Discuss-gnuradio] Error: /media/Softwares & Data/UBUNTU DOWNLOADS/top_block.py:1:1:FATAL:PARSER:ERR_DOCUMENT_EMPTY: Start tag expected, '<' not found

The code is as attached. On Mon, May 26, 2014 at 9:42 AM, jason sam wrote: > When i execute a GRC file i get the following error.Any info about that? > Regards, > Ali > noise Description: Binary data ___ Discuss-gnuradio mailing list Discuss-gnuradi

Re: [Discuss-gnuradio] How to set a master clock rate on USRP B200

There is a device args field in the current version of GNU Radio, so this might be where the confusion comes from. On 26.05.2014 05:41, Marcus D. Leech wrote: > On 05/25/2014 11:39 PM, jason sam wrote: >> "device args" parameter is not in the UHD USRP source/sink >> block?There is only 'Device addr

Re: [Discuss-gnuradio] Frequency modulation in GRC

Hi Ali, I'm talking about http://gnuradio.org/doc/doxygen/classgr_1_1analog_1_1frequency__modulator__fc.html This is the and thus only comprehensive documentation. But really, all this block does is, like I in text [1] and activecat in text and code[2] tried to explain, is increase the phase of i

Re: [Discuss-gnuradio] Some guidance on working through Core concepts of GNU Radio

> On 05/25/2014 09:39 PM, Shane MacPhillamy wrote: >> >> I’m working through >> http://gnuradio.org/redmine/projects/gnuradio/wiki/TutorialsCoreConcepts >> >> I’ve created the flow graph: >> >> >> >> >> I’m unsure on how to address the problem reported on Complex to Mag^2 as >> below, coul

[Discuss-gnuradio] Error: /media/Softwares & Data/UBUNTU DOWNLOADS/top_block.py:1:1:FATAL:PARSER:ERR_DOCUMENT_EMPTY: Start tag expected, '<' not found

When i execute a GRC file i get the following error.Any info about that? Regards, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] How to set a master clock rate on USRP B200

On 05/25/2014 11:39 PM, jason sam wrote: "device args" parameter is not in the UHD USRP source/sink block?There is only 'Device addr' Sorry, I meant Device Addr On Fri, May 23, 2014 at 9:39 PM, Marcus D. Leech > wrote: On 05/23/2014 12:23 PM, raf raf wrote:

Re: [Discuss-gnuradio] How to set a master clock rate on USRP B200

"device args" parameter is not in the UHD USRP source/sink block?There is only 'Device addr' On Fri, May 23, 2014 at 9:39 PM, Marcus D. Leech wrote: > On 05/23/2014 12:23 PM, raf raf wrote: > > Hello All Gnu Radio user, > > To use a 2 TX, I want to change a clock rate to an accepted one, und

Re: [Discuss-gnuradio] Frequency modulation in GRC

On Mon, May 26, 2014 at 10:20 AM, Activecat wrote: > On 25.05.2014 20:01, jason sam wrote: > >> > But if it is doing FM then there should be some min and max >> > frequencies between which the signal will be switching? >> > > > If you refer to the source code of the frequency_modulator_fc_impl.cc

Re: [Discuss-gnuradio] Frequency modulation in GRC

On 25.05.2014 20:01, jason sam wrote: > > But if it is doing FM then there should be some min and max > > frequencies between which the signal will be switching? > If you refer to the source code of the frequency_modulator_fc_impl.cc, then the min and max frequencies could be calculated. Says,

Re: [Discuss-gnuradio] Some guidance on working through Core concepts of GNU Radio

On 05/25/2014 09:39 PM, Shane MacPhillamy wrote: I’m working through http://gnuradio.org/redmine/projects/gnuradio/wiki/TutorialsCoreConcepts I’ve created the flow graph: I’m unsure on how to address the problem reported on Complex to Mag^2 as below, could you offer some pointers please?

[Discuss-gnuradio] Some guidance on working through Core concepts of GNU Radio

I’m working through http://gnuradio.org/redmine/projects/gnuradio/wiki/TutorialsCoreConcepts I’ve created the flow graph: I’m unsure on how to address the problem reported on Complex to Mag^2 as below, could you offer some pointers please? Connection ( Block - blocks_complex_to_mag_square

Re: [Discuss-gnuradio] GNU Radio Measurement Toolbox -- GSoC '14 Project

Hi Marcus, take your time :) this is not a simple problem to solve and hence it does not have a simple solution. I like the idea of starting with changing the scheduler behaviour first to experiment with. Indeed it will take a lot of measurements, talks, experiments (not exactly in this order)

Re: [Discuss-gnuradio] GNU Radio Measurement Toolbox -- GSoC '14 Project

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Bogdan, thanks for your comment :) Such an optimizer would be really, really fancy. In a way, though, GNU Radio already does this when running a flow graph: It just asks blocks to compute a reasonable amount of items to fill up the downstream buf

Re: [Discuss-gnuradio] GNU Radio Measurement Toolbox -- GSoC '14 Project

Hi Marcus, I like the approach you take by looking at what real life users will want from gnuradio when transitioning from an academic perspective to realtime system. Measurements are always not enough to understand the specifics of your system so I'm looking forward to see how your project

Re: [Discuss-gnuradio] Frequency modulation in GRC

You still seem to have no real grasp on what the frequency_modulator block does. Read my reply, and the documentation to that block again: >> The frequency mod is but an input amplitude controlled complex sine. >> It outputs a signal, which has a momentary phase increase that is >> proportional to

Re: [Discuss-gnuradio] GNU Radio Measurement Toolbox -- GSoC '14 Project

Hi Marcus, I like the approach you take by looking at what real life users will want from gnuradio when transitioning from an academic perspective to realtime system. Measurements are always not enough to understand the specifics of your system so I'm looking forward to see how your project pro

Re: [Discuss-gnuradio] Checksum error installing from 'port install gnuradio +all'

Hi Michael - I think this must be an oddity of the way MacPorts is doing binary (distfiles or pre-compiled tarball) distribution. You can get around the issue by manually downloading a valid distfile tarball into the correct location -- this is my work-around in the ticket Marcus mentions. Tha

Re: [Discuss-gnuradio] Avoid SSS printing

Hi Mauricio, I'm going to go ahead and assume you're using an Ettus device, because then these 'S' indicate a sequence error [1], not an underrun. As this means that data reached your PC in the wrong order and most probably could not be reordered. Your signal could be defective. Don't ignore this

[Discuss-gnuradio] Avoid SSS printing

Hi All, I am running a program that prints information in console. In one machine I am getting a lot of 'SSS' and gets pretty annoying sometimes. I have read that this is related with overrun problem, however the program is running correctly. Is there a way to avoid this?? Can I mask 'S' prin

Re: [Discuss-gnuradio] Build on ubuntu 14.04

And what is the size of the VM disk limited to and how much RAM have you allowed it? The step you are showing as exiting in (SWIG) requires lots of resources in building gnuradio. I hate SWIG, but have no idea what in the world we would do without it. On Sun, May 25, 2014 at 6:16 AM, Marcus Mül

Re: [Discuss-gnuradio] Build on ubuntu 14.04

I don't know if this is the same problem I have seen building on ARM with low memory and no swap. The build was failing silently with just the cc1plus error. Gnuradio needs at least 4GB of swap. Apologies if neither of the above applies. 73 ... Sid. On 25/05/14 10:29, Michael Hartje wrote: De

Re: [Discuss-gnuradio] Build on ubuntu 14.04

Hi Michael, build-grc.sh is not known to me; I think you're referring to build-gnuradio? (grc is short for GNU Radio Companion, the graphical Flowgraph Designer included in GNU Radio). There have been problems with builds on Ubuntu 14.04. However, your output indicates no error; so I'm not quite

[Discuss-gnuradio] Build on ubuntu 14.04

Dear list, I try to compile the new GR 3.7.4-git. But it breaks with pybombs as well as with the script build-grc.sh The job is done inside of a virtualbox-environment. host: win8.1, guest ubuntu 14.04 + updates Mem 1600 MB cut of the script build-grc.sh log -8<

Re: [Discuss-gnuradio] noutput_items

Thank you so much for your complete explanation. Just the term *maximally* and WORK_CALLED_PRODUCE works for me :) best, On Sun, May 25, 2014 at 12:50 PM, Marcus Müller wrote: > Hi Mostafa, > > a few things: > 1. work() only is meaningful for sync and interpolator/decimator blocks; > then, you

Re: [Discuss-gnuradio] noutput_items

Hi Mostafa, a few things: 1. work() only is meaningful for sync and interpolator/decimator blocks; then, you always have a fixed relation between consumed and produced items, and you can't have a different number of output items on different ports. 2. noutput_items is the parameter of the work fun

[Discuss-gnuradio] noutput_items

Hi, I'm confused about what is the return value of the work function if I have multiple output ports? I use *produce()* method to determine how many items produced on each port, so what does it mean to return again a number from work if I produced different number of items for each output port?? b

Re: [Discuss-gnuradio] cmake problem

Thank you, Yeah when I sent it, I remembered that I didn't send it to the mailing list, excuse me. OK, I'll find it. On Sun, May 25, 2014 at 11:35 AM, Marcus Müller wrote: > Hi Mostafa, > > you've forgot to add the mailing list in your reply question; please > always remember to do that :) >

Re: [Discuss-gnuradio] cmake problem

Hi Mostafa, you've forgot to add the mailing list in your reply question; please always remember to do that :) > My library is a package. I think I can find it with package config tool, so > I don't need *Findsome_library.cmake.* Am I right? Ok, this is getting too far away from GNU Radio. I'm r