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Zephyr project on STM32

   Zephyr Workbench, a VSCode extension to manage Zephyr on STM32.
It enables users to easily create, develop, and debug Zephyr applications.
Main features:
  • Install host dependencies.
  • Import toolchain and SDK.
  • Create, configure, build and manage apps.
  • Debug STM32.
You can directly download it from the VSCode marketplace
For more details, visit the Zephyr Workbench

System Workbench for STM32

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Default FPU Mode

Posted by bugmenot on 2015-06-04 12:34

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?

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Posted by dautrevaux on 2015-06-04 20:05 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

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