Development tools for Zephyr on STM32Workbench for Zephyr: VS Code extension to set up, build, flash and debug Zephyr applications on STM32.Devicetree manager: browse, edit and visualize Zephyr devicetree, STM32CubeMX-like for Zephyr.
Hello,
Are you trying to add OS-Posix stuff to a bare metal project ?!?
You don't have any OS on a microcontroller.
Unless you are trying a project with some RTOS ?. If not, you cannot use any high level-OS related libraries.