ST Link V2 on STM32L0538-DISCO not woking
See my answer on your other post : http://www.openstm32.org/forumthread6307?topics_offset=1
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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.