[sdiy] Audio Weaver for ST Discovery boards -Free!

[paula at synth.net]

Scott,

  You should take a look at this eval board for the SAM E70 -
https://www.digikey.co.uk/product-detail/en/microchip-technology/ATSAME70-XPLD/ATSAME70-XPLD-ND/5725743

  has a nice fast M7 CPU and a big chunk of RAM too ;)

Paula

On 2017-05-11 12:30, Scott Gravenhorst wrote:
> Well, to be honest, I started looking at Microchip's (Atmel)
> ATSAMS70N20 which includes
> almost identical internal features.  It has a bit more internal RAM,
> but the datasheet
> says it runs up to 300 MHz.  The ARM on the 32F746GDISCOVERY board
> runs up to 216 MHz.
> However, I've not been able to find a dev board for the ATSAMS70N20.
> 
> So I have to say that this Discovery board is my second choice and
> will be a super-major
> step up from a dsPIC.  As for performance, I'll just have to see how
> much synth I can
> cram into it.  One interesting thing about both of the ARM ICs is that
> they have a 2
> channel 12 bit DAC that runs up to 1 MHz sample rate which might be
> fun with naive
> waveforms since the Nyquist limit is 500 kHz.  I've worked with a 12
> bit DAC at that
> sample rate using an FPGA and I noticed no alias problems with naive 
> waveforms.
> However, such a high sample rate will limit voice and feature count.
> 
> Anyway, I'll post about it once I've got a good feel for what it can
> do.  All I have
> right now is a bunch of PDF files.
> 
> Michael Zacherl <sdiy-mz01 at blauwurf.info> wrote:
>> 
>> On 11.May 2017, at 3:44 , Scott Gravenhorst <music.maker at gte.net> 
>> wrote:
>> 
>>> I got some birthday money and bought this: 32F746GDISCOVERY
>>> =
>> 
>>> It looks pretty nice.  I will try Audio Weaver when the board comes 
>>> here.
>> 
>> at this price ($49 really?) it looks like a steal!
>> How you=92d rank the cpu performance-wise?
>> Additional I/O via SPI? (still thinking dc-coupled audio rate A/D D/A)
>> 
>> --
>> http://mz.klingt.org
>> 
>> 
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> 
> -- ScottG
> ________________________________________________________________________
> -- Scott Gravenhorst
> -- http://scott.joviansynth.com/
> -- When the going gets tough, the tough use the command line.
> -- Matt 21:22
> 
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