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  • I just flashed the same type of chip using this batch file a couple of days ago.

    1. :: Flash ESP8288-12 4MB chip with Espruino
    2. :: CD C:\Users\jj\Documents\espruinoEsp8266Flash\espruino_1v95_esp8266
    3. set /p pport=Enter a Com port
    4. echo %pport%
    5. pause
    6. esptool.py --port %pport% --baud 115200 write_flash --flash_freq 40m --flash_mode qio --flash_size 4MB 0x0000 "boot_v1.6.bin" 0x1000 espruino_esp8266_user1.bin 0x3FC000 esp_init_data_default.bin 0x3FE000 blank.bin
    7. pause
    8. :: To flash a 4MB esp8266 (e.g. esp-12) using the serial port use:
    9. :: esptool.py --port [/dev/ttyUSB0|COM1] --baud 115200 write_flash \
    10. :: --flash_freq 80m --flash_mode qio --flash_size 32m \
    11. :: 0x0000 "boot_v1.6.bin" 0x1000 espruino_esp8266_user1.bin \
    12. :: 0x3FC000 esp_init_data_default.bin 0x3FE000 blank.bin

    Give that a try.
    If you get Espruino up and running then in the left window of WebIDE try to following commands:

    require("ESP8266).getFreeFlash()

    and then

    process.env

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