Flash ESP-AT Firmware from microcontroller

michael98
Posts: 3
Joined: Tue May 31, 2022 10:25 am

Flash ESP-AT Firmware from microcontroller

Postby michael98 » Tue May 31, 2022 10:53 am

Hello,

I am currently trying to flash ESP-AT firmware on the ESP32-WROOM-32D chip from an atmel microcontroller via UART.
I was only able to flash the firmware using the ESP python flash tool by connecting the atmel chip with USB to a PC and forward the data send by the esptool over UART directly to the ESP.

Now I want to flash the ESP-AT firmware without using ESPtool but flash it directly from a microcontroller.
Does somebody know where I can find documentation about protocol to communicate with the ESP bootloader and documentation about how the ESP flash tool works.

Thank you!


michael98
Posts: 3
Joined: Tue May 31, 2022 10:25 am

Re: Flash ESP-AT Firmware from microcontroller

Postby michael98 » Thu Jun 02, 2022 7:13 am

Cool, I will look into that. Thank you!

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