CMSIS-DSP
Verison 1.1.0
CMSIS DSP Software Library
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Functions | |
void | arm_cfft_radix2_q31 (const arm_cfft_radix2_instance_q31 *S, q31_t *pSrc) |
Processing function for the fixed-point CFFT/CIFFT. | |
void | arm_radix2_butterfly_q31 (q31_t *pSrc, uint32_t fftLen, q31_t *pCoef, uint16_t twidCoefModifier) |
Core function for the Radix-2 Q31 CFFT butterfly process. | |
void | arm_radix2_butterfly_inverse_q31 (q31_t *pSrc, uint32_t fftLen, q31_t *pCoef, uint16_t twidCoefModifier) |
Core function for the Radix-2 Q31 CFFT Inverse butterfly process. |
void arm_radix2_butterfly_inverse_q31 | ( | q31_t * | pSrc, |
uint32_t | fftLen, | ||
q31_t * | pCoef, | ||
uint16_t | twidCoefModifier | ||
) |
[in,out] | *pSrc | points to the in-place buffer of Q31 data type. |
[in] | fftLen | length of the FFT. |
[in] | *pCoef | points to Twiddle coefficient buffer. |
[in] | twidCoefModifier | twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. |
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 Radix2_CFFT_CIFFT group
Referenced by arm_cfft_radix2_q31().