Compil 1.26 Error I2C on Xiao Esp32s3

[sophiedegran]

Hello

I try to compil latest micropython version 1.26 (stable) on Xiao Esp32s3 (Chip is ESP32-S3 (QFN56) (revision v0.2))
I use the same procedure as for version micropython 1.25 (stable) which work perfectly.

This post look like Issue #17871

After compiling with no error,

$ make -C mpy-cross
$ make -C ports/esp32 BOARD=ESP32_GENERIC_S3 BOARD_VARIANT=SPIRAM_OCT clean
$ make -C ports/esp32 BOARD=ESP32_GENERIC_S3 BOARD_VARIANT=SPIRAM_OCT submodules
$ make -C ports/esp32 BOARD=ESP32_GENERIC_S3 BOARD_VARIANT=SPIRAM_OCT 

flash with no error,
at the first boot:
Thonny console: (looping)

ELF file SHA256: 7dab23822

Rebooting...
ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0xc (RTC_SW_CPU_RST),boot:0xa (SPI_FAST_FLASH_BOOT)
Saved PC:0x4037612c
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce2820,len:0xeb0
load:0x403c8700,len:0x4
load:0x403c8704,len:0xc1c
load:0x403cb700,len:0x2fa4
entry 0x403c88ac
E (722) i2c: CONFLICT! driver_ng is not allowed to be used with this old driver

A fatal error occurred. The crash dump printed below may be used to help
determine what caused it. If you are not already running the most recent
version of MicroPython, consider upgrading. New versions often fix bugs.

To learn more about how to debug and/or report this crash visit the wiki
page at: https://github.com/micropython/micropython/wiki/ESP32-debugging

MPY version : v1.26.0-2.gbf02608f on 2025-08-14
IDF version : v5.4
Machine     : Generic ESP32S3 module with Octal-SPIRAM with ESP32S3

abort() was called at PC 0x420b7c20 on core 0

Backtrace: 0x403753e5:0x3fceb1f0 0x40387279:0x3fceb210 0x4038cf4e:0x3fceb230 0x420b7c20:0x3fceb2a0 0x42003996:0x3fceb2c0 0x4037583d:0x3fceb2f0 0x403ccb3d:0x3fceb340 0x403ccef9:0x3fceb380 0x403c8919:0x3fceb4b0 0x40045c01:0x3fceb570 0x40043ab6:0x3fceb6f0 0x40034c45:0x3fceb710

Could you confirm it's the same issue ?
If I can help you with more ...

Tks

[ricksorensen]

Using IDF 5.4 I see same library failure, but using IDF 5.4.2 works for me on release 1.26.0

[sophiedegran]

Yes!
Many thanks ricksorensen Esp-idf 5.4.2 is the solution ...
So I suppose that's same with All Esp boards...
It would be good to update the README.md in ports/esp32
micropython 1.26 need ESP-IDF v5.4.2
tks

[Josverl]

It would be good to update the README.md in ports/esp32\nmicropython 1.26 need ESP-IDF v5.4.2

How would you suggest improving on the current wording?

The ESP-IDF changes quickly and MicroPython only supports certain versions. Currently MicroPython supports v5.2, v5.2.2, v5.3, v5.4, v5.4.1 and v5.4.2.

To install the ESP-IDF the full instructions can be found at the Espressif Getting Started guide.