ESP8285 AT firmware programming

Posts: 2
Joined: Fri Nov 10, 2017 11:27 pm

ESP8285 AT firmware programming

Postby michael.ughetti » Fri Nov 10, 2017 11:38 pm


I'd like to program the AT firmware on an ESP8285 (custom board).
I've found my way through programming but I got an error at startup.
See attached pictures of programming screen and error.

Could you explain to me what I'm doing wrong ?
Bonus question : is there a way to start with 115200 baudrate instead of 74880 ?

Best regards,
Michaël Ughetti

Her Mary
Posts: 494
Joined: Mon Oct 27, 2014 11:09 am

Re: ESP8285 AT firmware programming

Postby Her Mary » Mon Nov 13, 2017 10:14 am

Maybe you can have a try with the SPI mode "DIO" while downloading the firmware.
Not sure if my suggestion can solve your problem, but you can have a try. :?

Posts: 1
Joined: Fri Jan 19, 2018 11:50 pm

Re: ESP8285 AT firmware programming

Postby bilekj » Sat Jan 20, 2018 12:02 am

Hello Michaël,
I spotted your problem while fighting with AT firmware on ESP8285 himself. I hope the community will forgive me for resurrecting the old thread.
Your setup is correct but maybe you are trying to flash a very old firmware (1.5.1), I flashed 2.1.0.
I used an old flash tool and it worked! On the contrary I had problems with newer flash tools.
Maybe it can help someone.


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