How to use CMSIS-DSP (arm_math.h) with stm32h742?

[baby_chicken]

I want to use arm_math.h in stm32cubeide.

Best regards.

[Andrew Neil]

arm_math.h is just a header file - so you just #include it.

Please give more details on what you're actually trying to do ...

EDIT:

So the question is really about using CMSIS-DSP. I've edited the title to make that clear.

[KDJEM.1 · Accepted solution]

Hello @baby_chicken,

Do you want to integrate CMSIS-DSP libraries on an STM32 project?

• If you use a version of CMSIS less than 5.8.0, refer to: Configuring DSP libraries on STM32CubeIDE - STMicroelectronics Community to add the DSP libraries in your project.
• If you use the 5.8.0 version of CMSIS or higher, follow the steps shared in: How to integrate CMSIS-DSP libraries on a STM32 project- STMicroelectronics Community.

You can check by opening the ARM.CMSIS.pdsc file in \STM32Cube_FW_H7_Vx.x.x\Drivers\CMSIS folder with notepad to know which CMSIS version is included in the package. 

Thank you.

Kaouthar

[baby_chicken]

Since I am using stm32h742 this time, do I need to change M4 to M7 for these two below?

Best regards.

[KDJEM.1]

Hello @baby_chicken,

Yes, the libraries depend on the core you are using.

So, from Project menu or File menu, go to Properties > C/C++ Build > Settings > Tool Settings > MCU CGC Linker > Libraries > Libraries (-l) > Add and insert the following libraries: "arm_cortexM7l_math," "arm_cortexM7lfdp_math" and "arm_cortexM7lfsp_math".

Please use ARM_MATH_CM7 instead of ARM_MATH_CM4.

I think this post: STM32H723 CMSIS DSP can help you.

Thank you.

Kaouthar

[baby_chicken]

There is no MCU CGC Linker, but MCU G++ Linker is available.

Best regards.

[KDJEM.1]

Hello @baby_chicken,

Are you using C++?

If you use C++, could you use "MCU G++ Compiler" for including paths and preprocessor and "MCU G++ Linker" for including libraries.

I recommend you to get inspired from the previous post.

Could you share your project?

Thank you.

Kaouthar

[baby_chicken]

MCU G++ Linker> Libraries > Libraries (-l) has “arm_cortexM7l_math,” “arm_cortexM7lfdp_math” “arm_cortexM7lfsp_math”. Add these.

What should I add to MCU G++ Compiler> Include paths > Include paths(-l)?

Am I correct in this perception?

Best regards.

[KDJEM.1]

Hello @baby_chicken

>What should I add to MCU G++ Compiler> Include paths > Include paths(-l)?

-->Add ../Drivers/CMSIS/DSP/Include path

Thank you.

Kaouthar

[baby_chicken]

Is this correct?
The build went through.

Best regards.