SW4STM32 and SW4Linux fully supports the STM32MP1 asymmetric multicore Cortex/A7+M4 MPUs

   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 get more information from the ac6-tools website and download two short videos (registration required) highlighting:

System Workbench for STM32

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is sw4stm32 open source


Sorry, System Workbench for STM32 is not open-source.
The setting menu is crashing because no compiler prefix option is found.

Are you sure your generated project is using the “fr.ac6.managedbuild.toolchain.gnu.cross.exe.debug” or “fr.ac6.managedbuild.toolchain.gnu.cross.exe.release” toolchain. The compiler prefix is usually set to its default value “arm-none-eabi-” automatically.

It might be quicker to compare your .cproject to the one from a new project created from the IDE to identify the mismatches.