How to add a file for STM32G030C6 in "Includes"

[SLi.17]

How can I add the STM32G030/Middlewares/Openbootloader/Core/openbl_core.h into STM32G030/Includes?

[KnarfB]

Look in Project Properties tab under C/C++ General.

[SLi.17]

This one?

[KnarfB]

yes, open it by clicking on the > and you find Paths and Symbols.

There are more alternatives, see STM32CubeIDE user guide (UM2609)