Flash ESP-AT Firmware from microcontroller
Posted: 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!
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!