[sdiy] Electrosmith Eurorack DSP platform

Mike Bryant mbryant at futurehorizons.com
Thu Jan 27 00:58:48 CET 2022

That's exactly what I'm doing at this very moment.  Replacing 1 H750 and 4 F730s with 21 RP2040s.  Absolute nightmare of a chip - very poor support from RPT compared with STM - but slowly getting there more thanks to people on their forum than RPT staff.  And have bought a half reel in advance to make sure I don't get shafted again.

For anybody else thinking of going this route, be warned that the SDK and the support programs to generate code for the PIOs have been written around gcc features and so it's currently impossible to use a modern compiler like Clang.

-----Original Message-----
From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of Eric Brombaugh via Synth-diy
Sent: 26 January 2022 23:18
To: synth-diy at synth-diy.org
Subject: Re: [sdiy] Electrosmith Eurorack DSP platform

Yep. Any STM32 parts more advanced than the low end of the G0/L0 families are basically unobtainium for the foreseeable future. We've had
F7 parts on back order for the last 9mo with no firm notice of when they'll be available. Unless you're a high volume customer with firm POs at this point you're sucking vacuum or subsisting on inventory you had in Q1/2021.

Any new MCU-based designs these days are migrating to alternatives. 
RP2040 parts are now available for < $1 in quantity direct from RPi Foundation, and ESP32 variants are cheap and in-stock at all the major distys. Definitely worth considering.


On 1/26/22 15:53, Mike Bryant wrote:
> After the AKM fab fire the guy there told me they had several reels of 
> CODECs in stock, so presumably they did the same with STM32s.   Wish 
> I’d bought a reel or two now.
> *From:*Synth-diy [mailto:synth-diy-bounces at synth-diy.org] *On Behalf 
> Of *Peter Pearson via Synth-diy
> *Sent:* 26 January 2022 22:50
> *To:* Jason Proctor
> *Cc:* synth-diy mailing list
> *Subject:* Re: [sdiy] Electrosmith Eurorack DSP platform
> I'd like to know where they bought STM32s with the global chip 
> shortage and all that...
> On Wed, Jan 26, 2022 at 4:40 PM Jason Proctor <jason at redfish.net 
> <mailto:jason at redfish.net>> wrote:
>     Interesting --
>     https://www.synthtopia.com/content/2022/01/25/electrosmith-intros-40-platform-for-creating-dsp-based-eurorack-modules/
> <https://www.synthtopia.com/content/2022/01/25/electrosmith-intros-40-
> platform-for-creating-dsp-based-eurorack-modules/>
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