How to generate a .bin file instead of a .elf file

Domy_ST · ‎2026-03-17

hello ST Community,

Is it possible to generate a binary file that is a *.elf file from a project developed by STM32CubeIDE?
Using the correct settings for generating *.bin files.

The *.bin file would be used to create a bootloader via UART for one of the STM32 microcontrollers.

Thanks for your valuable support.

Mahmoud Ben Romdhane · ‎2026-03-17

Hello

Let me thank you for posting.

Right-click on your project, Go to Properties, C/C++ Build → Settings, Tool Settings → MCU Post build outputs.

And enable Convert to binary file (-O Binary), then build the project.

Thanks.

Mahmoud

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

View solution in original post

RobK1 · ‎2026-03-17

Project -> Properties

Mahmoud Ben Romdhane · ‎2026-03-17

Hello

Let me thank you for posting.

Right-click on your project, Go to Properties, C/C++ Build → Settings, Tool Settings → MCU Post build outputs.

And enable Convert to binary file (-O Binary), then build the project.

Thanks.

Mahmoud

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Andrew Neil · ‎2026-03-30

Follow-on thread: how to send the binary file to the microcontroller.

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.

Andrew Neil · ‎2026-03-30

@Domy_ST wrote:
How to generate a *.bin file instead of a *.elf file

To be pedantic, the solution is not instead of the .elf - the .bin file is created in addition to the .elf.

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.