arm cfft radix4 q15 8c


CMSIS DSP Software Library: arm_cfft_radix4_q15.c File Reference Main Page Modules Data Structures Files Examples File List Globals Functions arm_cfft_radix4_q15.c File Reference #include "arm_math.h" Go to the source code of this file. Functions void arm_cfft_radix4_q15 (const arm_cfft_radix4_instance_q15 *S, q15_t *pSrc) void arm_radix4_butterfly_q15 (q15_t *pSrc16, uint32_t fftLen, q15_t *pCoef16, uint32_t twidCoefModifier) void arm_radix4_butterfly_inverse_q15 (q15_t *pSrc16, uint32_t fftLen, q15_t *pCoef16, uint32_t twidCoefModifier) void arm_bitreversal_q15 (q15_t *pSrc16, uint32_t fftLen, uint16_t bitRevFactor, uint16_t *pBitRevTab) Function Documentation void arm_radix4_butterfly_q15 ( q15_t *  pSrc16, uint32_t  fftLen, q15_t *  pCoef16, uint32_t  twidCoefModifier  ) Core function for the Q15 CFFT butterfly process. end of CFFT_CIFFT group Parameters: [in,out]*pSrc16points to the in-place buffer of Q15 data type. [in]fftLenlength of the FFT. [in]*pCoef16points to twiddle coefficient buffer. [in]twidCoefModifiertwiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. Returns:none. Definition at line 135 of file arm_cfft_radix4_q15.c. void arm_radix4_butterfly_inverse_q15 ( q15_t *  pSrc16, uint32_t  fftLen, q15_t *  pCoef16, uint32_t  twidCoefModifier  ) Core function for the Q15 CIFFT butterfly process. Parameters: [in,out]*pSrc16points to the in-place buffer of Q15 data type. [in]fftLenlength of the FFT. [in]*pCoef16points to twiddle coefficient buffer. [in]twidCoefModifiertwiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. Returns:none. Definition at line 533 of file arm_cfft_radix4_q15.c. void arm_bitreversal_q15 ( q15_t *  pSrc, uint32_t  fftLen, uint16_t  bitRevFactor, uint16_t *  pBitRevTab  ) In-place bit reversal function. Parameters: [in,out]*pSrcpoints to the in-place buffer of Q15 data type. [in]fftLenlength of the FFT. [in]bitRevFactorbit reversal modifier that supports different size FFTs with the same bit reversal table [in]*pBitRevTabpoints to bit reversal table. Returns:none. Definition at line 888 of file arm_cfft_radix4_q15.c.  All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Defines Generated on Mon Nov 29 2010 17:19:57 for CMSIS DSP Software Library by  1.7.2

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