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  • CMSIS DSP - FFT / RFFT

    Jejh
    Jejh

    Recently I've been trying to implement FFT provided in CMSIS-DSP libraries. And something strange happens
    - some of output array elements have values below 0.

    I am using arm_rfft_fast_f32. According to documentation (https://www.keil.com/pack/doc/CMSIS…

    • over 3 years ago
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    • Keil forum
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