Using FFT on iMXRT-685-aud-evk DSP

[MrRv]

Hello,

I'm working on the iMX RT685-aud-evk board, and I'm interested in performing FFT in a library for the DSP.
However, the only examples I could find regarding using FFT are using the CMSIS libraries, which, as I understand, are used from the CPU side.

Are there resources regarding usage of FFT functionality (and other mathematical functions) on the DSP alone?

Thanks in advance!

[jingpan · Accepted solution]

Hi @MrRv ,

Please refer to the Naturedsp example at SDK_2_12_0_EVK-MIMXRT685\boards\evkmimxrt685\dsp_examples\naturedsp\dsp.

It shows how to use DSP to perform FFT and other calculations.

Regards,

Jing