ESP32 Forum

Hi,

I need to disable debugging log print over U0TXD During Booting without connecting GPIO15 to the ground.

Is there any possible solution to suppress boot messages by changing software configurations? I can suppress the messages by shorting GPIO15(MTDO) to the ground, but I have seen the following pictures in the menu config. What is the meaning of red lines? Will they be available for the ESP32-MINI-1 module?

Thanks in advance.

The red lines are configuration items that are unaccessible because they don't apply to the current configuration (either because you selected a chip they don't apply to or because you turned off something they depend on).

Will the red lines in the attachment be available for the ESP32-MINI-1 module?

Is there any possible solution to suppress boot messages without connecting GPIO15 to the ground?

Thanks in advance.

No, as the module the chip is on generally doesn't affect the esp-idf settings you can use. From what I recall, the ROM messages of the ESP32 can only be silenced by that bootstrap pin. Later chips (ESP32S2, ESP32S3, ESP32C3) have an eFuse as well.