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 (registration required) various documents highlighting:

System Workbench for STM32

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C++ in-file assembly



Yes the syntax is quite different between Keil and System Workbench for STM32, which uses teh GCC compiler. You should look at the GCC dodumentation to learn how to write assembly language functions in C/C++; the documentation is freely available on Internet: just Google “GCC manual”.

Another alternative would be to craete a “.s” file with your assembly code, but in all cases teh ASM syntax has to be the GNU assembler syntax, not the Keil one...

Bernard (Ac6)