Esptool

Утилита esptool - загрузчик Flash памяти для микроконтроллеров ESP8266. Для Linux существует версия esptool на Python и в виде скомпилированной программы.

Установка esptool.py:

pip install esptool

Установка esptool в Linux Ubuntu:

sudo apt install esptool

Запускаем esptool:

esptool.py
usage: esptool [-h] [--chip {auto,esp8266,esp32}] [--port PORT] [--baud BAUD]
               [--before {default_reset,no_reset,no_reset_no_sync}]
               [--after {hard_reset,soft_reset,no_reset}] [--no-stub]
               [--trace] [--override-vddsdio [{1.8V,1.9V,OFF}]]
               {load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash_status,write_flash_status,read_flash,verify_flash,erase_flash,erase_region,version}

или так:

esptool
esptool.py v2.1
usage: esptool [-h] [--chip {auto,esp8266,esp32}] [--port PORT] [--baud BAUD]
               [--before {default_reset,no_reset}]
               [--after {hard_reset,soft_reset,no_reset}]
               {load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash_status,write_flash_status,read_flash,verify_flash,erase_flash,erase_region,version}
               ...

esptool.py v2.1 - ESP8266 ROM Bootloader Utility

positional arguments:
  {load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash_status,write_flash_status,read_flash,verify_flash,erase_flash,erase_region,version}
                        Run esptool {command} -h for additional help
    load_ram            Download an image to RAM and execute
    dump_mem            Dump arbitrary memory to disk
    read_mem            Read arbitrary memory location
    write_mem           Read-modify-write to arbitrary memory location
    write_flash         Write a binary blob to flash
    run                 Run application code in flash
    image_info          Dump headers from an application image
    make_image          Create an application image from binary files
    elf2image           Create an application image from ELF file
    read_mac            Read MAC address from OTP ROM
    chip_id             Read Chip ID from OTP ROM
    flash_id            Read SPI flash manufacturer and device ID
    read_flash_status   Read SPI flash status register
    write_flash_status  Write SPI flash status register
    read_flash          Read SPI flash content
    verify_flash        Verify a binary blob against flash
    erase_flash         Perform Chip Erase on SPI flash
    erase_region        Erase a region of the flash
    version             Print esptool version

optional arguments:
  -h, --help            show this help message and exit
  --chip {auto,esp8266,esp32}, -c {auto,esp8266,esp32}
                        Target chip type
  --port PORT, -p PORT  Serial port device
  --baud BAUD, -b BAUD  Serial port baud rate used when flashing/reading
  --before {default_reset,no_reset}
                        What to do before connecting to the chip
  --after {hard_reset,soft_reset,no_reset}, -a {hard_reset,soft_reset,no_reset}
                        What to do after esptool.py is finished

Проверим связь с микроконтроллером:

Подключаем ESP8266 модуль к компьютеру, например так ESP8266-01 подключение USB-UART. Запускаем тест. В нужный момент зажимаем кнопки RESET и Prog, отпускаем сначала RESET затем Prog:

esptool chip_id
esptool.py v2.1
Connecting........_____....._
Detecting chip type... ESP8266
Chip is ESP8266
Enabling default SPI flash mode...
Chip ID: 0x00688e9a
Hard resetting...

<<< ESP8266 в Arduino IDE Ω Edragon, ESP firmware >>>

ESP8266