Semihosting for the Blue Pill board (STM32F103C8T6) [SOLVED]
i know that i am late but for any one want to know
this link may has the solution
https://hackaday.io/page/3033-6-ides-to-debug-the-2-stm32-bluepill
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Development tools for Zephyr on STM32
Workbench 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.