Zephyr Workbench, a VSCode extension to manage Zephyr on STM32.
It enables users to easily create, develop, and debug Zephyr applications.
Main features:
Install host dependencies.
Import toolchain and SDK.
Create, configure, build and manage apps.
Debug STM32.
You can directly download it from the VSCode marketplace
For more details, visit the Zephyr Workbench
Hi, usually the __IO is defined in the core_cm0.h file located in the
...\STM32Cube_FW_L0_VX.X.X\Drivers\CMSIS\Include folder.
Are you using this file/path?