CMSIS-DSP
Version 1.10.0
CMSIS DSP Software Library
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Functions | |
void | arm_radix2_butterfly_f32 (float32_t *pSrc, uint32_t fftLen, const float32_t *pCoef, uint16_t twidCoefModifier) |
void | arm_radix2_butterfly_inverse_f32 (float32_t *pSrc, uint32_t fftLen, const float32_t *pCoef, uint16_t twidCoefModifier, float32_t onebyfftLen) |
void | arm_bitreversal_f32 (float32_t *pSrc, uint16_t fftSize, uint16_t bitRevFactor, const uint16_t *pBitRevTab) |
In-place floating-point bit reversal function. More... | |
void | arm_cfft_radix2_f32 (const arm_cfft_radix2_instance_f32 *S, float32_t *pSrc) |
Radix-2 CFFT/CIFFT. More... | |
void arm_bitreversal_f32 | ( | float32_t * | pSrc, |
uint16_t | fftSize, | ||
uint16_t | bitRevFactor, | ||
const uint16_t * | pBitRevTab | ||
) |
[in,out] | pSrc | points to in-place floating-point data buffer |
[in] | fftSize | length of FFT |
[in] | bitRevFactor | bit reversal modifier that supports different size FFTs with the same bit reversal table |
[in] | pBitRevTab | points to bit reversal table |
void arm_radix2_butterfly_f32 | ( | float32_t * | pSrc, |
uint32_t | fftLen, | ||
const float32_t * | pCoef, | ||
uint16_t | twidCoefModifier | ||
) |
end of ComplexFFT group brief Core function for the floating-point CFFT butterfly process. param[in,out] pSrc points to in-place buffer of floating-point data type param[in] fftLen length of the FFT param[in] pCoef points to twiddle coefficient buffer param[in] twidCoefModifier twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table return none