Need to rename merged_domains.hex file after the build is done for NRF5340

[Ajitsj]

Hi,

I have an NRF5340 application based on zephyr which produces a combined merged_domains.hex file.

I need to add a post build command after the "merge_domains.hex" file is generated to rename the "merge_domains.hex" file to "WECG_MODULE_revision_num.hex" . I have the cMakeLists.txt code as mentioned below.

set(REVISION_NUMBER "00_01_01")  #revision number

set(HEX_FILE_NAME "${CMAKE_BINARY_DIR}/zephyr/WECG_MODULE_${REVISION_NUMBER}.hex")

add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD

    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/zephyr/merged_domains.hex ${HEX_FILE_NAME}

)

I need to know in which CMakeLists.txt file can I add the above code?

Thanks and regards,

Ajit S J

[Hieu]

Hi Ajit S J,

I haven't been able to figure out a solution to your question yet. Usually, changes to CMake should be done in the application CMakeLists.txt. However, in this case, even though the custom command is set for POST_BUILD, it is run before linking and thus fail due to the absence of the .hex file.

I suppose you probably have a CI/CD system. Is it possible to do the file naming outside of the build step instead?

Best regards,

Hieu

[Ajitsj]

Hi Hieu,

Thanks for your reply. We do not have a CI/CD system in place.

Could you please let me know which script does the below mentioned steps of "Generating zephyr/merged_domains.hex". I can try to modify that script to rename the "merged_domains.hex" file?

[442/444] Linking C executable zephyr\zephyr.elf
Memory region Used Size Region Size %age Used
FLASH: 310784 B 1 MB 29.64%
RAM: 312400 B 512 KB 59.59%
IDT_LIST: 0 GB 2 KB 0.00%
[443/444] Generating zephyr/merged.hex
[444/444] Generating zephyr/merged_domains.hex

Thanks and regards,

Ajit S J