CMSIS-DSP: arm_cfft_radix4_f32.c File Reference

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arm_cfft_radix4_f32.c File Reference

## Functions

void | arm_bitreversal_f32 (float32_t *pSrc, uint16_t fftSize, uint16_t bitRevFactor, uint16_t *pBitRevTab)
void | arm_radix4_butterfly_f32 (float32_t *pSrc, uint16_t fftLen, float32_t *pCoef, uint16_t twidCoefModifier)
void | arm_radix4_butterfly_inverse_f32 (float32_t *pSrc, uint16_t fftLen, float32_t *pCoef, uint16_t twidCoefModifier, float32_t onebyfftLen)
void | arm_cfft_radix4_f32 (const arm_cfft_radix4_instance_f32 *S, float32_t *pSrc)
| Processing function for the floating-point Radix-4 CFFT/CIFFT.

## Function Documentation

void arm_bitreversal_f32 | ( | float32_t * | pSrc,
|  | uint16_t | fftSize,
|  | uint16_t | bitRevFactor,
|  | uint16_t * | pBitRevTab
| ) |  |

void arm_radix4_butterfly_inverse_f32 | ( | float32_t * | pSrc,
|  | uint16_t | fftLen,
|  | float32_t * | pCoef,
|  | uint16_t | twidCoefModifier,
|  | float32_t | onebyfftLen
| ) |  |

Referenced by arm_cfft_radix4_f32(), and arm_rfft_f32().