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

Is SW4STM32 Little or Big Endian?


Hi Ben,

By default ARM is little-endian, whatever the compiler you use (its not the compiler who decides: its the MCU that works by default as little-endian but may be manually programmed to behave as big-endian for data).

In your example p8data raw value is the same as p32data, and it points to the first byte of a 32-bit value, which is the LSB in little-endian mode.

Regarding pointer arithmetic, its done in units of the size of the pointed-to items (that’s standard C semantics) so p8data+1 effectively increments the pointer raw value by 1 while p32data+1 increments it by 4 bytes.

Bernard (Ac6)