ESP32-C6-MINI-1 USB connection problem

balazspavai
Posts: 6
Joined: Fri Feb 21, 2025 12:00 pm

ESP32-C6-MINI-1 USB connection problem

Postby balazspavai » Fri Feb 21, 2025 12:21 pm

Hi everyone,

I’ve been working on this schematic diagram and would love to get some feedback. Does anyone spot any errors or mistakes that I might have missed? I’d really appreciate any suggestions or improvements!

Thanks in advance!
schematics.png
schematics.png (355.53 KiB) Viewed 750 times

Sprite
Espressif staff
Espressif staff
Posts: 10599
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32-C6-MINI-1 USB connection problem

Postby Sprite » Sat Feb 22, 2025 6:08 am

* IO8 is floating at the moment. This is a bootup strapping pin that is floating by default; unless you add a pullup or tie it to +3.3V, you will have random issues getting the chip into download mode.
* Get rid of C28; it'll cause your board to boot up in download mode when power is applied.
* You can leave off C22, as it's in parallel with C26 anyway.
* Also, I'd personally make TXD0/RXD0 accessible somehow, even if only through a set of test points; sometimes the UART is useful for debugging and if you don't bring it out, you cannot reach it under the -Mini module.

balazspavai
Posts: 6
Joined: Fri Feb 21, 2025 12:00 pm

Re: ESP32-C6-MINI-1 USB connection problem

Postby balazspavai » Sat Feb 22, 2025 7:24 pm

I really did miss GPIO8. Thank you very much for your help! 🙏

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