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FFT in STM32F7 MCU

Question asked by Edwin kaus on Feb 21, 2018
Latest reply on Feb 23, 2018 by carpenter.adrian

Hello.,

 

I need to write test code for Audio codec which is interfaced through SAI interface . For this I am generating 1KHz sine wave using DAC and given to codec input and capturing the same through SAI interface . Now how to conclude that signal frequency is 1Khz by using SAI captured samples.

I was suggested to do FFT on those samples ,

>> Is it possible to do FFT on captured sample from SAI interface.

>> To do this Is there any inbuilt algorithm available in CMSIS library. If so which one to use and how to use can anyone suggest me .

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