[PD] LibPd on microcontroller

[Chuckk Hubbard]

Hi, Joe. Thanks for sharing Heavy.
I was simply referring to the main page saying "heavy supports a range of
platforms and frameworks allowing easy integration to your project." Before
going through the documentation, I was hoping to see which platforms and
frameworks. I see some logos, is that the list?
Chuckk


On Sun, May 15, 2016 at 4:06 PM, Joe White <white.joe4 at gmail.com> wrote:

> Hi Chuckk,
>
> I'm one of the developers of heavy. Apologies that you felt some
> information was lacking, would be very interested in hearing more about
> your experience and what wasn't answered.
>
> The code that heavy generates should compile on any platform that has a
> C99 compiler, and if it didn't we'd be very interested in looking into why.
> There are no OS specific dependencies and you can even swap out your own
> malloc, math, etc.. implementations.
>
> The code is optimised for SSE, AVX and NEON instruction sets and we also
> provide a single sample option for platforms where they are not available
> (i.e. javascript)
>
> Here's an example of integration with portaudio
> https://github.com/enzienaudio/examples/tree/master/portaudio
>
> Thanks,
> Joe
>
>
>
> On 13 May 2016 at 23:22, Chuckk Hubbard <badmuthahubbard at gmail.com> wrote:
>
>> Apropos of the heavy compiler, I was reading up on it and simply moved on
>> because of what seems to me a lack of information. There was an allusion to
>> it working for a wide variety of platforms and so on, but no actual lists
>> of this supposedly wide variety.
>> Does someone have an idea if it could compile Pd patches to work without
>> an OS for some architecture? Otherwise, why would you bother with it?
>> (that's not a rhetorical question)
>> Thanks.
>> -Chuckk
>>
>>
>> On Mon, May 9, 2016 at 6:39 PM, cyrille henry <ch at chnry.net> wrote:
>>
>>> hello,
>>>
>>> I recently send a mail in this list describing my experience of audio
>>> synthesis on microcontroler, but i did not use libpd.
>>>
>>> i did not recommend libpd for microcontrolers.
>>>
>>> in fact, I did not recommend audio processing on hardware that did not
>>> have support for float arithmetic.
>>> (only me or crazy nerd do that).
>>>
>>> a micro controller to use is for example the cortex M4. You  can find
>>> them on the teensy hardware.
>>> teensy also provide a audio synthesis library, and is supported by
>>> arduino IDE.
>>>
>>> You can also have a look at the heavy compiler if you want to embedded a
>>> pd patch.
>>>
>>> Cyrille
>>>
>>>
>>>
>>>
>>>
>>> Le 09/05/2016 17:01, Christof Ressi a écrit :
>>>
>>>> Hi,
>>>>
>>>> has anyone experience in using LibPd on a microcontroller?
>>>> I wanna try to run some rather basic DSP code on this guy here:
>>>>
>>>> https://www.olimex.com/Products/IoT/MOD-WIFI-ESP8266-DEV/open-source-hardware
>>>> There are some existing Arduino/C++ frameworks and I thought I could
>>>> either write my own small DSP library in C++ or use LibPd.
>>>>
>>>> I understood that LibPd is completely independed of audio drivers and
>>>> external libraries and since it's plain C code it should work on everything
>>>> that can run code. However, I have only encountered LibPd in the context of
>>>> other applications (processing, openFrameworks) and mobile devices so far.
>>>> Do you think it could work on an ESP8266? I'm also a bit concerned about
>>>> efficiency, as computation power is rather limited:
>>>>
>>>> "ESP8266EX is embedded with Tensilica L106 32-bit micro controller
>>>> (MCU), which features extra low
>>>> power  consumption  and  16-bit  RSIC. The  CPU  clock  speed  is
>>>> 80MHz.  It  can  also  reach  a  maximum
>>>> value  of  160MHz.  Real  Time  Operation  System  (RTOS)  is
>>>> enabled.  Currently,  only  20%  of  MIPS  has
>>>> been  occupied  by  the  WiFi  stack,  the  rest  can  all  be  used
>>>> for  user  application  programming  and
>>>> development."
>>>>
>>>> Christof
>>>>
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>>
>>
>> --
>> http://www.badmuthahubbard.com
>>
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>


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