[PD] olimex board

[Raphaël Ilias]

Hello,

Updating this thread about Olimex's OlinuXino board (A20-LIME & A20-LIME2)
I still get the following error (in fact the console gets filled with
dozens of them in a few seconds) :

"ALSA output error (restart failed): Broken pipe"

And the all DSP gets "stuck", it is not computed anymore (i.e. [env~]
doesn't output anymore). I tried to make an abstraction to detect that dsp
isn't "active" and restart it (";pd dsp 0", then ";pd dsp 1" -- the DSP
button stays ticked).

This error appears at every startup of pd, and then randomly, I think
mostly when opening new patcher window or on CPU load peaks. In general,
pd's gui is quite slow (maybe normal on such board), and - don't know if
this is related - sometimes Xorg crashes (I'm using the precooked debian
distribution by Olimex)

I remember to read on this list that Raspberry Pi users should use a
patched version of vanilla for ARM processors, isn't it ? (And Julian also
adviced me to avoid pd-extended)

I think I'll give a try, but is there a little step-by-step "howto" to
learn how to install this version on a debian ?

Any help much appreciated !

cheers,

Raphaël


2015-05-22 12:44 GMT+02:00 Winfried Ritsch <ritsch at iem.at>:

>  just to add my experience.
>
>
>
> I am now running some Olimex A10-Lime with amplifier boards on a sound
> installation and it works quite stable.
>
>
>
> Test-board see:
>
>
>
> http://puredata.info/docs/embedded/olinuxino/algo_a10board_05_cut.jpg/view
>
>
>
> I compiled jackd myself excluding dbus service so it worked, but did not
> get
>
> a better performance so I use pd with ALSA directly.
>
>
>
> mfg
>
> winfried
>
>
>
>
>
> Am Mittwoch, 13. Mai 2015, 14:56:28 schrieb Raphaël Ilias:
>
> > Hi !
>
> >
>
> > Just to inform you that I'm currently experimenting with Olimex's
>
> > development boards, this might interest some people here (i am not doing
>
> > any advertising at all) who are into "mobile puredata"
>
> >
>
> > the set-up i use consists of
>
> > - Olimex's A20-OLinuXino-LIME board (dual core Cortex-A7)
>
> > - with their own Debian distribution
>
> > - cheap USB audio interface : "Terratec Aureon Dual USB"
>
> > - pd-extended 0.43-4
>
> > - patching through VNC (and through Wi-Fi)
>
> >
>
> > And it works.
>
> > ..not as fast as on my laptop, of course, but I can run patches ok.
>
> > yet, the GUI is indeed quite slow (especially opening a patch)
>
> >
>
> > However, I have a few troubles, but it might not be the right place to
>
> > ask...
>
> > I am newbie to debian, so I couldn't setup jack at all. I'm using alsa
> but
>
> > I get the error at startup :
>
> > "ALSA output error (restart failed): Broken pipe"
>
> > (and also sometimes when opening patche, I get a bunch of these and DSP
> get
>
> > stuck, i need to turn OFF and ON again pd's DSP to get audio back.)
>
> >
>
> > Searching the archive, I saw that some people got the same problem and
>
> > resolved it by suspending/de-installing pulseaudio.
>
> > But it seems that pulseaudio isn't installed here.
>
> > Maybe someone has got a clue, where to search...? (i know this is very
>
> > specific problem !)
>
> >
>
> > all best,
>
> >
>
> > Raphaël
>
>
>
> --
>
> ---
>
> Ritsch, Winfried, Ao.Univ.Prof. Dipl.-Ing.
>
> Institut 17 Elektronische Musik und Akustik
>
> 8010 Graz, Inffeldgasse 10/III
>
> E-Mail ritsch at iem.at
>
> Homepage http://iem.at/ritsch
>
> Mobil ++436642439369
>
> ---
>
>
>
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