Stm32f407 FPU with threadX

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Hello everyone,
I'm using AZURERTOS on my STM32F407 microcontroller. My goal is to use the FPU to perform some mathematical operations (FFT, etc.).

Could you help me figure out how to activate the FPU and how to tell when it's active, taking into account the RTOS I'm using?
- I am using STM32CUBEIDE

Thank You!

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mƎALLEmBest answer

ST Technical Moderator

Hello,

In your project settings in CubeIDE, go to Floating-point ABI:

"Hardware implementation .." needs to be selected.

Normally the RTOS is taking into account the FPU registers handling.

Hope that helps

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.

S

Saket_Om

ST Technical Moderator

Hello @MetehanUzun

Please refer to the application note "Floating point unit demonstration on STM32 microcontrollers"

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. Saket_Om

mƎALLEmBest answer

ST Technical Moderator

Hello,

In your project settings in CubeIDE, go to Floating-point ABI:

"Hardware implementation .." needs to be selected.

Normally the RTOS is taking into account the FPU registers handling.

Hope that helps

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.

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