Dear all.
I defined IO33 as TXD UART signal.
Is it possible to make this pin (IO33) also open-drain but still with TXD UART available on it?

The buffers are disabled for both cores. Interrupts also disabled. I working from IRAM now. Most of all I'll try to easy write to the SPI via registers. Because spi_flash functions are not working now for some reason. As for customers... When we have "stupid" task we have to do it like any other ...

Can you please tell me, Core 0 is APP_CPU or PRO_CPU?

Why is strange? The goal of this is quite simple.
On some assembled devices I run my own test software. But my customer wants to get the devices (esp32 firmware) in the state like "from factory".
I don't want to disassemble all mechanical parts and erase esp32 by pc connection, because is better to ...

Hi there.
Friends, can anybody advice me how to do the application that is able to erase itself in the ESP32-WROOM-32 flash memory, or (and this is better) can bring the ESP32-WROOM-32 to the its default factory state.
I don't ask for a solution, but asking for the advice how is better to do that ...