STM32MP1 support available in SW4STM32

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world.
And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4; you can download a short video showcasing this on the ac6-tools website (registration required).

System Workbench for STM32



Can you verify if the last debug session is well terminated (Window > Open perspective > Debug). If no debug session is displayed, check if “openocd.exe” is still running in background and terminate it on your Windows task manager.

You also need to check if your board com port is not already busy (communicating with another software, such as ST-Link Utility) and the driver is not out-dated. (Nucleo boards has an embedded ST-Link/V2-1).

Hope it can help you.