ESP32 Forum

shubhamm098

I checked the following link supporting Pre-encrypted OTA for esp-idf 4.4. Would like to know if it can be integrated with custom esp-idf 4.2 integrated with amazon freertos. https://github.com/aws/amazon-freertos

https://github.com/espressif/esp-idf/is ... 1101345156

shubhamm098

Code: Untitled.txt Select all

How can I  read,  write and erase nvs from bootloader in esp32?

shubhamm098

Code: Untitled.txt Select all

In the bootloader

Firstly, I want bootloader should always boot ota0 first

Secondly, I want to boot partition ota1 and ota0 based on an nvs flag and voltage level on io pins on esp32s3. How can i modify the existing bootloader to acheive it?

shubhamm098

I got this solution please verify if it's logically correct?

Solution: Using esp_app_desc_t and esp_image_load().

This method manually loads and jumps to the desired partition without changing the bootloader's configuration.
📌 Implementation (Modified ota0)

#include "freertos/FreeRTOS.h ...

shubhamm098

I have three partitions ota0 ota1 and ota2. ota0 contains the firmware upgrade via tusb and also checks for some pins voltage and a nvs flag to decide if it have to do the usb mass storage upgrade or not otherwise boot the ota1 or ota2 partiton based on nvs flag.

If yes it will show a drive on ...

shubhamm098

I want to run the mass storage when bootloader starts without any app. Is it possible to integrate the tusb-msc example and bootloader of esp32 together? if yes how?
Along with this i want to integrate the nvs and adc component also to read the voltage level in bootloader. Please let me now how can ...

Search found 6 matches

Pre-encrypted ota support on amazon freertos supporting esp-idf 4.2

Nvs Reading, writing and erasing in Bootloader

Booting partitions based on NVS flag and a voltage level on io pins

How to boot ota1 from ota0 partition?

Fail Safe bootloader

ESP32 bootloader, tusb_msc and adc example integration

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