Re: [Discuss-gnuradio] Companion flow error

[Nikos Balkanas]

That did it.

Thank you all very much. I didn't get any real spectrum out of it, just a black screen, but at least i know that my companion flow setup works:)

I prefer gr-fosphor to baudline:)

I hope that other blocks include more documentation (baudline sink has none), and that error messages are more specific (i.e. filename in missing file error)

BR,

Nikos

On Wed, Mar 9, 2016 at 7:08 AM, Nate Temple <address@hidden> wrote:

Hi Nikos,

You need the baudline binary which is here [1]. It will unpack to the folder baudline_1.08_linux_x86_64/. Put the contents in the folder baudline_1.08_linux_x86_64/ in your home directory. You should then be able to call the command "baudline" and if that works, the GR sink block should work.

[1] - http://www.baudline.com/baudline_1.08_linux_x86_64.tar.gz


- Nate

> On Mar 8, 2016, at 8:59 PM, Nikos Balkanas <address@hidden> wrote:
>
> Hi Nate,
>
> I imagine you refer to baudline.py which is in the error trace.
>
> > baudline
> baudline: command not found
>
> For baudline.py to run, I would have to have /usr/local/lib/python2.7/... part of my PATH, which i don't.
>
> > echo $PATH
> /opt/AMDAPPSDK-3.0:/opt/AMD/CodeXL:/home/nikos/bin:/home/nikos/baudline_1.08_linux_x86_64:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:.
> Is this smt i should add to my PATH?
>
> > ls -la baudline_1.08_linux_x86_64
> total 8
> drwxrwxr-x 2 nikos nikos 4096 Mar 9 04:31 .
> drwxr-xr-x 54 nikos nikos 4096 Mar 9 06:52 ..
>
> BR,
> Nikos
>
> On Wed, Mar 9, 2016 at 6:51 AM, Nate Temple <address@hidden> wrote:
> Hi Nikos,
>
> Does baudline start if you just run the command "baudline" from the terminal?
>
> Can you send the output of this command:
>
> ls -al /home/nikos/baudline_1.08_linux_x86_64 ​
>
>
> - Nate
>
>
> > On Mar 8, 2016, at 8:33 PM, Nikos Balkanas <address@hidden> wrote:
> >
> > Hi Marcus,
> >
> > I imagine you mean the top_block.py generated by the flow.
> >
> > The output is much longer, includes all x300 initialization sequences, but eventually I get the same error as before:(
> >
> > Nikos
> >
> > On Wed, Mar 9, 2016 at 6:22 AM, Marcus D. Leech <address@hidden> wrote:
> > On 03/08/2016 11:10 PM, Nikos Balkanas wrote:
> >> Hi Nate,
> >>
> >> Not really. I added line to .profile (that's where I maintain PATH) and reexported PATH with the new value, b4 starting the companion. It shouldn't make a difference.
> >> I then rebooted my PC, just to make sure that PATH was updated correctly, same error as before.
> >>
> >> BR,
> >> Nikos
> > If you just try to execute the generated .py file, from a window that apparently has correct PATH, what happens?
> >
> >
> >>
> >> On Wed, Mar 9, 2016 at 5:45 AM, Nate Temple <address@hidden> wrote:
> >> Hi Nikos,
> >>
> >> Did you restart gnuradio-companion from a new terminal after adding the line to your ~/.bashrc file?
> >>
> >>
> >> - Nate
> >>
> >>
> >> > On Mar 8, 2016, at 7:09 PM, Nikos Balkanas <address@hidden> wrote:
> >> >
> >> > ​Hi Nate,
> >> >
> >> > Thank you for your fast reply. I tried your suggestions, but i seem to still get the same error:
> >> >
> >> > > echo $PATH
> >> > /opt/AMDAPPSDK-3.0:/opt/AMD/CodeXL:/home/nikos/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:.:/home/nikos/baud:/home/nikos/baudline_1.08_linux_x86_64 ​
> >> >
> >> > > ls -ld baud*
> >> > drwxrwxr-x 2 nikos nikos 4096 Mar 9 04:31 baudline_1.08_linux_x86_64
> >> >
> >> > >['baudline', '-stdin', '-record', '-spacebar', 'recordpause', '-samplerate', '40000000', '-channels', '2', '-format', 'le32f', '-quadrature', '-basefrequency', '2100000000.0']
> >> > [Errno 2] No such file or directory
> >> > Traceback (most recent call last):
> >> > File "/home/nikos/Desktop/top_block.py", line 116, in <module>
> >> > tb = top_block()
> >> > File "/home/nikos/Desktop/top_block.py", line 84, in __init__
> >> > **{})
> >> > File "/usr/local/lib/python2.7/dist-packages/baz/baudline.py", line 146, in __init__
> >> > self.p = subprocess.Popen(baudline_exec, stdin=subprocess.PIPE)       # , stdout=subprocess.PIPE, stderr=subprocess.PIPE, bufsize=16384 or -1
> >> > File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
> >> > errread, errwrite)
> >> > File "/usr/lib/python2.7/subprocess.py", line 1327, in _execute_child
> >> > raise child_exception
> >> > OSError: [Errno 2] No such file or directory
> >> >
> >> > >>> Done
> >> >
> >> > Attaching new flowgraph and top_block.py.
> >> >
> >> > BR
> >> > Nikos
> >> >
> >> >
> >> >
> >> > <Tutorial.grc><top_block.py>
> >>
> >>
> >>
> >>
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