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

You are viewing a reply to FPU going too slow  

FPU going too slow


Hi Florent,

Yes the main reason to run slower may be to save power; however if you carefully use WFI (or WFE) for sleeping when you don’t have anything to do (waiting to be woken up by some interrupt, even masked for WFI, only unmasked ones for WFE) then you may achieve about the same power consumption at 100MHz, but have better response times due to the higher CPU frequency.

Of course this is only valid if you are interrupt-driven; if you use polling, you can’t use WFI/WFE and then decreasing teh CPU frequency to what gives you the needed performance will provide you with better battery life.

Bernard (Ac6)