esptool reset mode

[andriyadi]

Would be great if we can change the reset mode to be used by esptool, for uploading firmware to esp8266. As we know, esptool supports 2 reset modes now via -cd option: ck and nodemcu.

I check in this file platformio/platformio/builder/scripts/espressif.py, the -cd option is hardcoded to ck. Can I change that via platform.ini, or I should the source code of that espressif.py file?

Anyway, great progress so far! Definitely gonna keep using platformio.
Thanks.

[ivankravets]

Take a look on http://docs.platformio.org/en/latest/projectconf.html#extra-script

See related #247 (comment)

extra_script allows you to change behaviour of PlatformIO builder.

[ivankravets]

Do you need a help with http://docs.platformio.org/en/latest/projectconf.html#extra-script ?

[andriyadi]

It would be great if you could provide an example for adding additional options, as my Python skill is very low. But that extra_script should do it for now.

If it's not too much for asking, the Arduino for esp8266 framework comes with boards.txt file. Is it possible to respect the settings in it? For example:

generic.upload.tool=esptool
generic.upload.speed=115200
generic.upload.resetmethod=ck
generic.upload.maximum_size=434160
generic.upload.maximum_data_size=81920
generic.upload.wait_for_upload_port=true
generic.serial.disableDTR=true
generic.serial.disableRTS=true

Thanks!

[ivankravets]

• Create platformio_extra_script.py in the project near platformio.ini with the content:

from SCons.Script import DefaultEnvironment

env = DefaultEnvironment()

env.Replace(
    MYUPLOADERFLAGS=[
        "-vv",
        "-cd", "nodemcu",
        "-cb", "$UPLOAD_SPEED",
        "-cp", "$UPLOAD_PORT",
        "-ca", "0x00000",
        "-cf", "$SOURCE"
    ],
    UPLOADCMD='$UPLOADER $MYUPLOADERFLAGS',
)

• Specify extra_script in platformio.ini, for example

[env:esp01]
platform = espressif
framework = arduino
board = esp01
extra_script = platformio_extra_script.py

Did it help you?

[andriyadi]

Wow... Super helpful! Thanks man!

I'll try tonight. Will confirm the result.

[ivankravets]

Please re-open this issue if you still need help.

[andriyadi]

Sorry for late update. I can confirm that your guidance works. Thanks!

[liangzelang]

@ivankravets could you explain the meaning of the platformio_extra_script.py because i don't learn Python.

[valeros]

Hi @andriyadi
Why do you need extra script option?
In two words it's just a python code snippet that can interact with build environment.
You can specify reset method in platformio.ini