I2c configuration In MCUboot

RE: I2c configuration In MCUboot

Kazi Afroza Sultana — Tue, 17 Jun 2025 09:36:57 GMT

Hello,

The error message ''No prj.conf file(s) was found in the C:/gnodeBoot/sysbuild/mcuboot folder(s), please read the Zephyr documentation on application development'' means that you need to add a prjconf file in the systbuild/mcuboot directory which is missin now. Build system expects this project configuration.This is a requirement when using sysbuild with MCUboot, especially if you have board-specific configuration files or overlays in that directory.

So try to do the following steps

Create a file at C:/gnodeBoot/sysbuild/mcuboot/prj.conf.
Copy the contents of the default MCUboot prj.conf (from the MCUboot source, typically found at bootloader/mcuboot/boot/zephyr/prj.conf in your NCS installation) into your new sysbuild/mcuboot/prj.conf

RE: I2c configuration In MCUboot

Monali K — Mon, 09 Jun 2025 16:05:04 GMT

any update on this

RE: I2c configuration In MCUboot

Monali K — Thu, 05 Jun 2025 12:22:10 GMT

Hello,
I tried it with

and tried to build the project I got error

CMake Error at C:/ncs/v2.9.0/zephyr/cmake/modules/extensions.cmake:2923 (message):
  No prj.conf file(s) was found in the C:/gnodeBoot/sysbuild/mcuboot
  folder(s), please read the Zephyr documentation on application development.
Call Stack (most recent call first):
  C:/ncs/v2.9.0/zephyr/cmake/modules/configuration_files.cmake:40 (zephyr_file)
  C:/ncs/v2.9.0/zephyr/cmake/modules/zephyr_default.cmake:133 (include)
  C:/ncs/v2.9.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
  C:/ncs/v2.9.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
  CMakeLists.txt:12 (find_package)


-- Configuring incomplete, errors occurred!
CMake Error at cmake/modules/sysbuild_extensions.cmake:514 (message):
  CMake configure failed for Zephyr project: mcuboot

also when I used normal mcuboot.overlay i2c1 is present in zyphyr.dts

RE: I2c configuration In MCUboot

Kazi Afroza Sultana — Tue, 03 Jun 2025 13:11:16 GMT

Hello,

The error 'undefined reference to '__device_dts_ord_105' shows that either I2C is not enabled in the final devicetree for MCUboot or the required I2C driver is not enabled in the MCUboot build. Can you please check here in the zephyr.dts file (build/mcuboot/zephyr/zephyr.dts) is the i2c1 has 'status = "okay" '?

If not, the overlay may not be applied correctly. Make sure the overlay file is in the correct location and named properly.

For nRF5340 custom board, use child_image/mcuboot/boards/<your_board>.overlay (multi-image), for generic child_image/mcuboot.overlay or sysbuild/mcuboot/boards/<your_board>.overlay (Sysbuild), for generic sysbuild/mcuboot.overlay

In the mcuboot.conf, you have CONFIG_I2C=y, you can try to add the CONFIG_NRFX_TWIM=y or CONFIG_NRFX_TWI for enabling the correct driver.