How to create HEX or BIN file for separate flashing?

Forum|Forum|1 year ago
May 30, 2024
3 replies
7189 views

Currently the extention only builds an ELF file.

How can I tell cmake to not only build an ELF file but also a HEX or BIN file?

VSCode for STM32

Best answer by George Ruinelli

So, to answer my own question, I got it working by appending the following lines to `CMakeLists.txt` in the project folder:

# Convert output to hex and binary
add_custom_command(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD
 COMMAND ${CMAKE_OBJCOPY} -O ihex $<TARGET_FILE:${CMAKE_PROJECT_NAME}> ${CMAKE_PROJECT_NAME}.hex
)

# Convert to bin file -> add conditional check?
add_custom_command(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD
 COMMAND ${CMAKE_OBJCOPY} -O binary $<TARGET_FILE:${CMAKE_PROJECT_NAME}> ${CMAKE_PROJECT_NAME}.bin
)

Snipped cortesy of https://github.com/MaJerle/stm32-cube-cmake-vscode

Andrew Neil

Super User

Add the conversion as a post-build step;

https://stackoverflow.com/questions/19458031/how-to-create-a-executable-hex-from-elf-file-format

EDIT: sorry, that's for CubeIDE - I guess VSCode has something similar?

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.