Out of buffer error while using Advanced OTA example in esp-idf (IDFGH-7610)

[MaazSk]

Environment

• Development Kit: [ESP32-DevKit]

• Kit version (for WroverKit/PicoKit/DevKitC): [v1]

• Module or chip used: [ESP32-WROOM-32|]

• IDF version (run git describe --tags to find it): v5.0-dev-939-g952b4d848f

• Compiler version : xtensa-esp32-elf-gcc (crosstool-NG esp-2021r1) 8.4.0

• Operating System: [Linux]

• Using an IDE?: [VS Code]

• Power Supply: [USB]

Problem Description

I am trying to use the advanced ota example provided by esp-idf but I am getting the following error

E (9663) HTTP_CLIENT: Out of buffer
E (9663) esp_https_ota: Failed to open HTTP connection: ESP_FAIL
E (9663) esp_https_ota: Failed to establish HTTP connection
E (9673) advanced_https_ota_example: ESP HTTPS OTA Begin failed

How can I change the buffer size or any help how to resolve it can be of better help

Thank you!

[mahavirj]

Please try setting larger value for buffer_size_tx from HTTP client configuration

esp-idf/components/esp_http_client/include/esp_http_client.h

Line 128 in 20f5e18

int buffer_size_tx; /*!< HTTP transmit buffer size */

[MaazSk]

Larger means what should it be its ideal value as my .bin file would be approximately 1.2MB in size and earlier these code used to work.

Also when I tried to set it 10240 I got the following error.

E (26957) esp_https_ota: Client error (400)
E (26967) esp_https_ota: Failed to establish HTTP connection
E (26977) advanced_https_ota_example: ESP HTTPS OTA Begin failed

The .bin file is been hosted on google drive.

[shubhamkulkarni97]

Hi @MaazSk,

• You should not use the sharing link for downloading the firmware. You can use this tool to generate the download link: https://sites.google.com/site/gdocs2direct/
• Please check if you can download the file on your host machine using curl. This will help to check any issues with the setup.

[MaazSk]

Hi @shubhamkulkarni97,
Thank you for the reply. I know that I need to create a downloadable link and I have created the same and I am able to directly download the file using the url without any issue.

[MaazSk]

The issue is been resolved the problem was when I created the link the access given was restricted and not to everyone which should I have been to everyone after changing this setting it is working fine,

Thank you for the help