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

[Scott Gravenhorst]

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