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
Could be due to reset issues with the board,. Does the debug probe have a reset connection to the MP? Many boards do not, especially 4 wire SWD boards.
See previous post “stm32f4 with nucleo-f401RE”