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CMSIS-DSP
CMSIS DSP Software Library
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Instance structure for the Double Precision Floating-point CFFT/CIFFT function.
Data Fields | |
| uint16_t | fftLen |
| const float64_t * | pTwiddle |
| const uint16_t * | pBitRevTable |
| uint16_t | bitRevLength |
| uint16_t bitRevLength |
bit reversal table length.
| uint16_t fftLen |
length of the FFT.
| const uint16_t* pBitRevTable |
points to the bit reversal table.
| const float64_t* pTwiddle |
points to the Twiddle factor table.