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

Compiler Optimizations and RAM Use


Hello Stephen,

Generally when you are out of memory, you really need to use another MCU with larger RAM.

But before doing that, you need to check if you are doing the “free” when the allocated memory is no more needed in your program, you also need to optimize the size of data’s (types/structures) : (eg. no need to use 32bits integer when your variable won’t exceed 0xFF)

Concerning -ffunction-sections & -fdata-sections : these options will not affect RAM usage, but they will affect ROM usage negatively. Your executable will be begger and slower !