[sdiy] Generating a large number of CV outputs

[Jonatan Liljedahl]

Maybe that was the problem then! What exactly is continuous mode? No gaps
between words?

/Jonatan
http://kymatica.com


mån 11 dec. 2023 kl. 17:00 skrev Mike Bryant <mbryant at futurehorizons.com>:

> Using SPI requires continuous mode which I'm not sure most STM32s support.
>
> ------------------------------
> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Jonatan
> Liljedahl <lijon at kymatica.com>
> *Sent:* 11 December 2023 15:49
> *To:* SDIY <synth-diy at synth-diy.org>
>
> *Subject:* Re: [sdiy] Generating a large number of CV outputs
>
> I did a similar plot when I was experimenting with
> sigma-delta/noise-shaping output from an STM32, but in ASCII :)
> There's one trick where an SPI peripheral is used for "high quality"
> audio PDM output, but I never was able to get any usable performance
> from it. I even got better results just using 8 bit PWM but with
> sigma-delta noise shaping. (But I settled on using the built-in 12 bit
> DAC instead)
>
> Cheers
> /Jonatan
>
> On Mon, Dec 11, 2023 at 4:19 PM Roman Sowa <modular at go2.pl> wrote:
> >
> > This is awesome! Such a simple trick helps to visualize it so quickly.
> > Testing different patterns to further minimize any repeatability seems
> > like pleasant adventure now and doesn't even require any test equipment.
> >
> > Roman
>
> --
> /Jonatan
> http://kymatica.com
>
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