arm_cfft_radix2_q31.c File Reference

Functions
void	arm_radix2_butterfly_q31 (q31_t *pSrc, uint32_t fftLen, q31_t *pCoef, uint16_t twidCoefModifier)
void	arm_radix2_butterfly_inverse_q31 (q31_t *pSrc, uint32_t fftLen, q31_t *pCoef, uint16_t twidCoefModifier)
void	arm_bitreversal_q31 (q31_t *pSrc, uint32_t fftLen, uint16_t bitRevFactor, uint16_t *pBitRevTab)
void	arm_cfft_radix2_q31 (const arm_cfft_radix2_instance_q31 *S, q31_t *pSrc)
	Processing function for the fixed-point CFFT/CIFFT.

Function Documentation

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

void arm_radix2_butterfly_inverse_q31	(	q31_t *	pSrc,
		uint32_t	fftLen,
		q31_t *	pCoef,
		uint16_t	twidCoefModifier
	)

References mult_32x32_keep32_R, multAcc_32x32_keep32_R, and multSub_32x32_keep32_R.

Referenced by arm_cfft_radix2_q31().

void arm_radix2_butterfly_q31	(	q31_t *	pSrc,
		uint32_t	fftLen,
		q31_t *	pCoef,
		uint16_t	twidCoefModifier
	)

end of ComplexFFT group

References mult_32x32_keep32_R, multAcc_32x32_keep32_R, and multSub_32x32_keep32_R.

Referenced by arm_cfft_radix2_q31().