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ESP32-C3-MINI-1 programming

Posted: Thu Sep 02, 2021 9:32 am
by gfeller
Hi,
I got into a problem when trying to program the ESP32-C3-MINI-1 module on my electronics.
Programming software: flash_download_tool_3.8.8
When I checked with a terminal emulator on the debug port (I want to use for programming as well), I see the following:
ESP-ROM:esp32c3-api1-20210207
Build:Feb 7 2021
rst:0x1 (POWERON),boot:0x0 (USB_BOOT)
wait usb download
Is there a bootloader version that only supports firmware download over USB ?
I never had this problem before (always connected my modules over UART 0 for FW uploads), and the USB pins are not routed on my electronic.
Thanks for any ideas that may help!
BR, Martin

Re: ESP32-C3-MINI-1 programming

Posted: Fri Sep 03, 2021 2:22 am
by ESP_Sprite
I think you should make sure your bootstrap (strapping) pins are set correctly, that seems to be the issue here. Refer to the ESP32C3 datasheet for the correct pins and settings.