ESP32 can get in bootloader mode after deep sleep

Matheus.Goulart
Posts: 4
Joined: Thu Jan 23, 2020 5:48 pm

ESP32 can get in bootloader mode after deep sleep

Postby Matheus.Goulart » Thu Jan 23, 2020 6:05 pm

Good morning,

I started working with ESP few days ago and recently begin with my first project using ulp.
The idea was to set a cyclic time to wake ESP32 from deep sleep.

After a few try, he got in the deep sleep mode and never woke up again. After a few time he starts to heat up.
Is there a way that my code broke my esp?

When i use make menuconfig didn't show anything, and i can't get in the bootloader either. The current he is consuming is nearly 200mA.

I was using esp-idf pulse count example as a base.

Best reggards,

ESP_Angus
Posts: 2072
Joined: Sun May 08, 2016 4:11 am

Re: ESP32 can get in bootloader mode after deep sleep

Postby ESP_Angus » Fri Jan 24, 2020 2:25 am

Hi Matheus,

Is it possible the chip is bootstrapping into the wrong mode when it wakes up? What GPIOs are connected to it? Suggest cross-referencing against the list of strapping pins in the ESP32 datasheet.

Are you able to monitor the serial output when the ESP32 wakes up?

Angus

sergiomarina
Posts: 3
Joined: Wed Feb 05, 2020 6:29 pm

Re: ESP32 can get in bootloader mode after deep sleep

Postby sergiomarina » Sat Feb 08, 2020 1:35 pm

Hello,
I jump into this post since I think my request is connected:
I'm looking for a reference documentation that explains how to use menuconfig script available in the ESP-IDF SDK. I have just installed version 4.1, but I cannot find a document that explains the different options made available by "menuconfig" character graphical interface.
Please, help.
Thank you and best regards, Sergio

ESP_Angus
Posts: 2072
Joined: Sun May 08, 2016 4:11 am

Re: ESP32 can get in bootloader mode after deep sleep

Postby ESP_Angus » Sun Feb 09, 2020 10:16 pm

Hi Sergio,

I'm not sure how this is related to the posts above, but you can find a guide to using menuconfig here:
https://docs.espressif.com/projects/esp ... -configure

And a detailed reference for the configuration items, here:
https://docs.espressif.com/projects/esp ... onfig.html

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