RE: [Discuss-gnuradio] First-timer Question

[Mr. mollasadra]

OK, I think I found what I had been looking for:

http://ossie.wireless.vt.edu/download/labs/OSSIE_0.6.2_lab4_final.pdf

Thanks to all, specially Cameron for their help.

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> From: address@hidden
> To: address@hidden; address@hidden
> Subject: RE: [Discuss-gnuradio] First-timer Question
> Date: Sat, 31 May 2008 06:48:22 +0000
>
> Hi,
> Yes, I have made some progress.
> I have the usrp working with virtualized Fedora. The biggest problem I
> have was getting the virtual machine to see the usrp on the usb bus. The
> linux command "lsusb" will show the usrp on the bus.
> As you would expect the max through put on the usb port was around 16MB,
> determined using usrp_benchmark_usb.py.
> I did some other testing using usrp_wfm_rcy.py, set your frequency and
> then set the volume using the -V option I had to set it to 50.
>
> Cameron
> On Fri, 30 May 2008 16:48:14 +0000, "Mr. mollasadra"
> <address@hidden> said:
> >
> > Hi
> > I was wondering if you had any progress on that USRP setup?
> >
> > ----------------------------------------
> > > From: address@hidden
> > > To: address@hidden; address@hidden
> > > Subject: RE: [Discuss-gnuradio] First-timer Question
> > > Date: Fri, 23 May 2008 00:48:34 +0000
> > >
> > > Hi
> > >
> > > I will be trying to connect a usrp to a virtual machine this weekend, I
> > > will let you know what happened.
> > > I do know from previous experience that the usrp can send data at a
> > > higher data rate than a virtual machine can handle, so there is a lot of
> > > over run errors.
> > > I only use vm's for testing.
> > > By the way we should communicate via the discussion list, as other
> > > people may be interested in what we are talking about.
> > >
> > > Cameron
> > > On Thu, 22 May 2008 22:54:31 +0000, "Mr. mollasadra"
> > > said:
> > >> Thanks for the response.
> > >> I tried what you said on a VMware setup and as you said it worked, which
> > >> led me to think that my machine is at fault (probably something wrong
> > >> with the sound card, onto another machine).
> > >> Now that I have that sorted out, I wanted to connect the USRP broad and
> > >> run an example program on it (for example the wide FM GUI).
> > >> As I said in my previous post the only information I could find was on
> > >> archive.com (a page which seems like it doesn't exist anymore).
> > >> Lets say right after the installation of the gnuradio-examples I plug in
> > >> the USRP, what steps do I need to take in order to have a working
> > >> example?
> > >> Do you think that old page is complete enough for a walk through?
> > >>
> > >> Again I really appreciate your help, I'm a undergrad student who's been
> > >> assigned to figure this thing by himself (as you know the USRP boards and
> > >> the GNURadio don't come with a manual per say, and there aren't that many
> > >> howtos online).
> > >>
> > >>
> > >>
> > >>> From: address@hidden
> > >>> To: address@hidden; address@hidden
> > >>> Subject: Re: [Discuss-gnuradio] First-timer Question
> > >>> Date: Wed, 21 May 2008 23:28:54 +0000
> > >>>
> > >>> Hi
> > >>> I have just installed gnuradio onto Fredora 8.
> > >>> I installed Fedora 8.
> > >>> Connected to the internet.
> > >>> Let Fedora do its automatic updates.
> > >>> I then ran the following command
> > >>>
> > >>> yum install gnuradio
> > >>>
> > >>> There were about 10 dependent packages that needed to be installed.
> > >>>
> > >>> Once all the downloads were finished I had gnuradio installed.
> > >>>
> > >>> The gnuradio examples were in a separate package.
> > >>>
> > >>> From memory I think the command to install it was
> > >>>
> > >>> yum install gnuradio-examples.
> > >>>
> > >>> Notes on my install
> > >>>
> > >>> I was running Fedora 8 as a virtual machine in VMware.
> > >>> I also installed GnuRadio Companion (grc) well worth while.
> > >>> The install was done without a usrp connected.
> > >>>
> > >>> Hope this helps
> > >>> Cameron
> > >>> On Wed, 21 May 2008 21:00:22 +0000, "Mr. mollasadra"
> > >>> said:
> > >>>> Since my last question (which was on installing GNU Radio on VM-ware) I
> > >>>> have abandoned that approach and now am trying it out on an actual
> > >>>> machine.
> > >>>> I apologize in advance if this question seems too long, I'm just going to
> > >>>> walk through everything I did to get to where I am now
> > >>>> (so in the process it might even turn out to be a resource for other
> > >>>> first-timers who are having problems)
> > >>>> I'm using fedora 8 (and through out this the USRP board is not plugged
> > >>>> in).
> > >>>>
> > >>>> So after going through a brand new Fedora 8 installation, to get a
> > >>>> working GNU Radio I first did this:
> > >>>> $ yum isntall gnuradio
> > >>>>
> > >>>> since I wasn't sure what exactly had happened, I kind of disregarded it
> > >>>> and continued with this path:
> > >>>>
> > >>>> did this:
> > >>>> $ yum install sdcc
> > >>>>
> > >>>> then did these:
> > >>>> $ yum groupinstall "Engineering and Scientific" "Development Tools"
> > >>>> $ yum install fftw-devel cppunit-devel wxPython-devel libusb-devel guile
> > >>>> boost-devel alsa-lib-devel numpy
> > >>>>
> > >>>>
> > >>>> then added these two manually to "/home/[user]/.bashrc":
> > >>>>
> > >>>> PYTHONPATH=/usr/local/lib/python2.4/site-packages
> > >>>> PATH=/usr/libexec/sdcc:$PATH
> > >>>>
> > >>>>
> > >>>> then I restart the computer for the changes to take effect
> > >>>> then I finish it off by doing theses:
> > >>>>
> > >>>> $ svn co http://gnuradio.org/svn/gnuradio/branches/releases/3.1 gnuradio
> > >>>> $ cd gnuradio
> > >>>> $ ./bootstrap
> > >>>> $ ./configure
> > >>>> $ make
> > >>>> $ make check
> > >>>> $ sudo make install
> > >>>>
> > >>>>
> > >>>> all the installation worked as it should.
> > >>>> BTW: after the ./configure I get this (which seems normal):
> > >>>>
> > >>>> The following components were skipped either because you asked not
> > >>>> to build them or they didn't pass configuration checks:
> > >>>>
> > >>>> gr-audio-jack
> > >>>> gr-audio-osx
> > >>>> gr-audio-portaudio
> > >>>> gr-audio-windows
> > >>>> gr-comedi
> > >>>>
> > >>>>
> > >>>>
> > >>>> Now for a test I ran this:
> > >>>> $ cd /gnuradio-examples/python/audio/
> > >>>> $ python dial_tone.py
> > >>>>
> > >>>>
> > >>>>
> > >>>>
> > >>>> Which gives me this error:
> > >>>>
> > >>>> audio_alsa_sink[hw:0,0]: set_period_time_near failed: Invalid
> > >>>> argument
> > >>>> Traceback (most recent call last):
> > >>>> File "dial_tone.py", line 55, in
> > >>>> my_top_block().run()
> > >>>> File "dial_tone.py", line 48, in __init__
> > >>>> dst = audio.sink (sample_rate, options.audio_output)
> > >>>> File "/usr/lib/python2.5/site-packages/gnuradio/audio_alsa.py",
> > >>>> line 236, in sink
> > >>>> return _audio_alsa.sink(*args)
> > >>>> RuntimeError: audio_alsa_sink
> > >>>>
> > >>>>
> > >>>>
> > >>>> I had seen this error before and the cause of it (as I had found on
> > >>>> theses forums) was another program (youtube's video player in browser)
> > >>>> using up the sound device. so by closing down FireFox it worked, but now
> > >>>> it makes no difference. I know my sound device works (as I was able to
> > >>>> play a song fine)
> > >>>> but I'm getting really frustrated (due to the non-ending steps just to
> > >>>> get GNU Radio running and to some degree my lack of fully understanding
> > >>>> the linux architecture). Any help would be appreciated.
> > >>>>
> > >>>> My next question would be (if I managed to somehow resolve the prev.
> > >>>> problem) to actually hook up the USRP to the machine, what steps do I
> > >>>> have to take to ensure the software can communicate with the hardware? I
> > >>>> found this page:
> > >>>> http://web.archive.org/web/20061031031439/comsec.com/wiki?UsrpInstall
> > >>>>
> > >>>> but does this page still exist somewhere on this website (hopefully with
> > >>>> updated info.) or if it does not, why not?
> > >>>>
> > >>>> Thanks you all.
> > >>>>
> > >>>> _________________________________________________________________
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