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How to use the CMSIS-Library in STM32F756ZGT6 for FFT?

CChek
Associate

Hi,

i am a new user and bought the STM32F756ZGT6 Nucleo-144 board for the university.

I tried to use the CMSIS-Function to do a real Fast Fourier Transformation on 1024 samples values. I created a new Project using dma for fast sampling. When I add the function arm_rfft_fast_f32(...) in main.c, I get an Error :  rfft_fast_f32 undeclear.

I use STM32CubeIDE as Development Tool.

I think this problem could be fixed by linking the CMSIS-Library. But I don't get it.

Could someone help me?

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