Internal GPIO0 weak pull-up get's disconnected with slow/fuzzy 3.3V ramp-up

daanpape
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Joined: Tue Jan 03, 2023 2:41 pm

Internal GPIO0 weak pull-up get's disconnected with slow/fuzzy 3.3V ramp-up

Postby daanpape » Tue Sep 16, 2025 2:24 pm

Hello,

Sometimes our ESP32-S3 boots into download mode. While debugging we saw that at first the GPIO0 follows the Vin signal but all over sudden, before the reset get's released, it gets disconnected:
DS1Z_QuickPrint1.png
DS1Z_QuickPrint1.png (49.61 KiB) Viewed 8154 times
Is there a known errata?

Best regards,
Daan

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