Re: [Discuss-gnuradio] Problem running FCD demo

[Volker Schroer]

Have a look at your dmesg log. You probably see a " not enough 
bandwidth" message. Are you using an usb 2 or an usb 3 port ?

-- Volker



Am 19.03.2014 03:57, schrieb Mike Harpe:
> I am trying to run the FCD nfm demo with the proplus module. This is
> using 3.7.3. Everything compiled and loaded fine. I am very tired and
> going to bed.
>
> I would really appreciate someone looking at this. Thanks in advance.
>
> Executing: "/home/mike/fcd_nfm_rx.py"
>
> Using Volk machine: avx_64_mmx_orc
> Funcube Dongle Pro+ found as: plughw:1,0
> Dongle sucessfully initialized
> Result of Action :+++++
> FCDAPP 20.03
>   Lna gain enabled
>   Mixer gain disabled
> If gain set to: 0
> Set Frequency to: 1.62475e+08 Hz, corrected to: 162475008 Hz
> len(audio_taps) = 463
> audio_alsa_source[plughw:1,0]: snd_pcm_hw_params failed: Input/output error
> Traceback (most recent call last):
>    File "/home/mike/fcd_nfm_rx.py", line 405, in <module>
>      tb.Start(True)
>    File
> "/usr/local/lib/python2.7/dist-packages/grc_gnuradio/wxgui/top_block_gui.py",
> line 73, in Start
>      self.start()
>    File
> "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/top_block.py", line
> 104, in start
>      top_block_start_unlocked(self._tb, max_noutput_items)
>    File
> "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/runtime_swig.py",
> line 4629, in top_block_start_unlocked
>      return _runtime_swig.top_block_start_unlocked(*args, **kwargs)
> RuntimeError: check topology failed on audio_alsa_source(12) using
> ninputs=0, noutputs=2
>
>  >>> Done
>
>
>
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