Solved: CMSIS-DSP with STM32F302 - STMicroelectronics Community

Dear all,

is it possible to use CMSIS-DSP with STM32F302XXX?

Actually I'm working with NUCLEO STM32F302R8Tx (but final board will have STM32F302RCT6) and I have two issues :

1) I am not able to find lib *.a in repository CMSIS_DSP

2) Following this guide Guide I get this error ../Drivers/CMSIS/Include/core_cm4.h:105:8: error: #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"

Is there some hardware limitation?

Or am I missing some step?

Thank you

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Accepted Solutions

@ermes wrote:
2) Following this guide Guide I get this error ../Drivers/CMSIS/Include/core_cm4.h:105:8: error: #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"

Well, the STM32F302R8 does have an FPU - so there must be a problem in your configuration:

https://www.st.com/en/microcontrollers-microprocessors/stm32f302r8.html#:~:text=embedding%20a%20floating%20point%20unit%20(FPU)

Have you tried a search of the forum?

https://community.st.com/t5/forums/searchpage/tab/message?q=cmsis%20dsp%20stm32f3&noSynonym=false&collapse_discussion=true

https://community.st.com/t5/forums/searchpage/tab/message?advanced=false&allow_punctuation=false&q=cmsis%20dsp

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

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@ermes wrote:
2) Following this guide Guide I get this error ../Drivers/CMSIS/Include/core_cm4.h:105:8: error: #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"

Well, the STM32F302R8 does have an FPU - so there must be a problem in your configuration:

https://www.st.com/en/microcontrollers-microprocessors/stm32f302r8.html#:~:text=embedding%20a%20floating%20point%20unit%20(FPU)

Have you tried a search of the forum?

https://community.st.com/t5/forums/searchpage/tab/message?q=cmsis%20dsp%20stm32f3&noSynonym=false&collapse_discussion=true

https://community.st.com/t5/forums/searchpage/tab/message?advanced=false&allow_punctuation=false&q=cmsis%20dsp

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Hello,

As stated by @Andrew Neil STM32F302 has a HW FPU.

Check out the DSP demo provided in X-CUBE-DSPDEMO (STM32F429I-Discovery project) which you can inspire from.

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