C++ support in CubeMx

[EniRot99]

Hello everyone,

I wanted to check if there is any updated information regarding when STM32CubeMX will officially enable generation and support of C++ code. Currently, I'm still relying on various workarounds to implement projects in C++, which unnecessarily complicates the development process.

Does anyone have new insights or know of an official roadmap from STMicroelectronics? 

Adding native C++ support would be a significant improvement, especially for higher performance STM32 microcontrollers like the STM32H7, STM32U5, etc. series. C++ enables better code organization through object-oriented programming, making it easier to manage complex projects.

[Ghofrane GSOURI]

Hello @EniRot99 

STM32CubeIDE can help generate C++ projects. You can follow these steps to convert a CubeMX project to a C++ project:

1-Generate the CubeMX project.

2- Open the project  STM32CubeIDE

3- Right click on the project -->  Convert to C++ Project" option to add C++ nature to the project.

4- Rename "main.c" to "main.cpp".

5- Adjust the project properties to use the C++ compiler and set the desired C++ standard

[EniRot99]

Hi @Ghofrane GSOURI 

yes this is a workaround I already did. The problem is, when you have to change a setting in CubeMX or expand the application, for example, adding a new peripheral CubeMX will overwrite your "main.cpp" with a newly generated "main.c". This makes the workflow tedious, as you constantly have to re-merge your previous C++ adaptations back into the project.

What we're really looking for is native C++ support directly in CubeMX. Ideally, CubeMX should directly generate ".cpp" files, so we don't have to manually adjust the code after every regeneration.

[Pavel A.]

There is another, simpler, cleaner way, it has been discussed in this forum ad nauseum.

It is that you simply convert the project generated by Cube to C++. Then you simply develop your object oriented application in C++, and let the Cube do its business as usual.

Young C++ developers are invited to review their C++ classes and refresh on the extern "C" construct. No need to rename anything. That's all. It works. 

[TDK]

Keep it as main.c and put your C++ code in another file. This is how it is meant to be done and avoids the annoyances you mention.

CubeMX is created to generate C code.