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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


Default FPU Mode

I’ve created a new project based on custom STM32F407 board with default settings.

The files are being compiled using these FPU settings: mfloat-abi=hard -mfpu=fpv4-sp-d16

The startup_stm32.s file contains this code:

.syntax unified
.cpu cortex-m4
.fpu softvfp
.thumb

I’m not sure, but isn’t there a conflict here (i.e. hard vs soft)? Shouldn’t changing the FPU settings in the project change also the .fpu line in the startup file?

France

In fact the .fpu softvfp line is useless in this file, as there is no floating point operations, but effectively this line should say .fpu hard to be consistent.

Bernard