Esp32 is unable to execute the uploaded code

sdg123
Posts: 3
Joined: Tue Nov 02, 2021 4:58 pm

Esp32 is unable to execute the uploaded code

Postby sdg123 » Wed Aug 03, 2022 11:20 am

Hello, I'm able to upload the code successfully but esp32 is not executing the code. I'm getting the following message on the Serial monitor:
ets Jul 29 2019 12:21:46

rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))
waiting for download
When I reset the esp32, it starts executing the code only if I connect IO0 to VCC.

ESP_Sprite
Posts: 9703
Joined: Thu Nov 26, 2015 4:08 am

Re: Esp32 is unable to execute the uploaded code

Postby ESP_Sprite » Wed Aug 03, 2022 12:08 pm

What development hardware are you using? IO0 is the pin that makes the ESP32 go into download mode if it has a low level on it, so I'd imagine your board may be missing a pullup or so for that.

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