CMSIS-DSP  Version 1.7.0
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]pSrcpoints to in-place floating-point data buffer
[in]fftSizelength of FFT
[in]bitRevFactorbit reversal modifier that supports different size FFTs with the same bit reversal table
[in]pBitRevTabpoints 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]pSrc16points to in-place Q15 data buffer
[in]fftLenlength of FFT
[in]bitRevFactorbit reversal modifier that supports different size FFTs with the same bit reversal table
[in]pBitRevTabpoints 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]pSrcpoints to in-place Q31 data buffer.
[in]fftLenlength of FFT.
[in]bitRevFactorbit reversal modifier that supports different size FFTs with the same bit reversal table
[in]pBitRevTabpoints to bit reversal table
Returns
none