pyOCD

pyOCD is an open-source Python library and command-line tool for programming and debugging Arm Cortex-M microcontrollers using various debug probes such as CMSIS-DAP, J-Link, and ST-Link. It provides a flexible Python API for low-level target control, suitable for automated testing and CI/CD workflows, alongside a powerful command-line interface for common operations like GDB server, flashing, and erasing. Currently at version 0.44.0, pyOCD maintains an active development cycle with several minor releases annually.