CMSIS-DSP: arm_bitreversal.c File Reference

| CMSIS-DSP Version 1.8.0 CMSIS DSP Software Library

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arm_bitreversal.c File Reference

## Functions

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_bitreversal_q31 (q31_t *pSrc, uint32_t fftLen, uint16_t bitRevFactor, const uint16_t *pBitRevTab)
| In-place Q31 bit reversal function. More...
void | arm_bitreversal_q15 (q15_t *pSrc16, uint32_t fftLen, uint16_t bitRevFactor, const uint16_t *pBitRevTab)
| In-place Q15 bit reversal function. More...

## Function Documentation

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

Parameters

  [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

Returns
  none

void arm_bitreversal_q15 | ( | q15_t * | pSrc16,
|  | uint32_t | fftLen,
|  | uint16_t | bitRevFactor,
|  | const uint16_t * | pBitRevTab
| ) |  |

Parameters

  [in,out] | pSrc16 | points to in-place Q15 data buffer
  [in] | fftLen | 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

Returns
  none

void arm_bitreversal_q31 | ( | q31_t * | pSrc,
|  | uint32_t | fftLen,
|  | uint16_t | bitRevFactor,
|  | const uint16_t * | pBitRevTab
| ) |  |

Parameters

  [in,out] | pSrc | points to in-place Q31 data buffer.
  [in] | fftLen | 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

Returns
  none