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Music Tech DIY • Re: MCU-based modules & PSU lag in modular synth systems

If you're making a new module, I'd recommend using a "power supervisor" chip for this reason. They're small and cheap and just wait for the Vdd to come to a threshold you choose by P/N (2.9V, 3.0V, 3.1V, etc..) and after a prescribed amount of milliseconds, issues a reset pulse to the MCU.

For existing designs where somebody didn't include such a thing, there's a lot less you can do. From what I understand, STM32s are particularly sensitive to this.

Statistics: Posted by devinw1 — Tue Sep 24, 2024 5:59 pm



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