From 76177aa280494bb36d7a0bcbda1078d4db717020 Mon Sep 17 00:00:00 2001 From: Ali Labbene Date: Mon, 9 Dec 2019 11:25:19 +0100 Subject: Official ARM version: v4.5 --- .../DSP/html/arm__cfft__radix4__q31_8c.html | 292 +++++++++++++++++++++ 1 file changed, 292 insertions(+) create mode 100644 Documentation/DSP/html/arm__cfft__radix4__q31_8c.html (limited to 'Documentation/DSP/html/arm__cfft__radix4__q31_8c.html') diff --git a/Documentation/DSP/html/arm__cfft__radix4__q31_8c.html b/Documentation/DSP/html/arm__cfft__radix4__q31_8c.html new file mode 100644 index 0000000..2892c02 --- /dev/null +++ b/Documentation/DSP/html/arm__cfft__radix4__q31_8c.html @@ -0,0 +1,292 @@ + + + + + +arm_cfft_radix4_q31.c File Reference +CMSIS-DSP: arm_cfft_radix4_q31.c File Reference + + + + + + + + + + + + + + + +
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CMSIS-DSP +  Version 1.4.7 +
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CMSIS DSP Software Library
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arm_cfft_radix4_q31.c File Reference
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void arm_radix4_butterfly_inverse_q31 (q31_t *pSrc, uint32_t fftLen, q31_t *pCoef, uint32_t twidCoefModifier)
 Core function for the Q31 CIFFT butterfly process.
 
void arm_radix4_butterfly_q31 (q31_t *pSrc, uint32_t fftLen, q31_t *pCoef, uint32_t twidCoefModifier)
 Core function for the Q31 CFFT butterfly process.
 
void arm_bitreversal_q31 (q31_t *pSrc, uint32_t fftLen, uint16_t bitRevFactor, uint16_t *pBitRevTab)
 
void arm_cfft_radix4_q31 (const arm_cfft_radix4_instance_q31 *S, q31_t *pSrc)
 Processing function for the Q31 CFFT/CIFFT.
 
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Function Documentation

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void arm_bitreversal_q31 (q31_t * pSrc,
uint32_t fftLen,
uint16_t bitRevFactor,
uint16_t * pBitRevTab 
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Referenced by arm_cfft_radix2_q31(), and arm_cfft_radix4_q31().

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void arm_radix4_butterfly_inverse_q31 (q31_t * pSrc,
uint32_t fftLen,
q31_t * pCoef,
uint32_t twidCoefModifier 
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Parameters
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[in,out]*pSrcpoints to the in-place buffer of Q31 data type.
[in]fftLenlength of the FFT.
[in]*pCoefpoints to twiddle coefficient buffer.
[in]twidCoefModifiertwiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.
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Returns
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References __SIMD64.

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Referenced by arm_cfft_q31(), arm_cfft_radix4_q31(), and arm_cfft_radix4by2_inverse_q31().

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void arm_radix4_butterfly_q31 (q31_t * pSrc,
uint32_t fftLen,
q31_t * pCoef,
uint32_t twidCoefModifier 
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end of ComplexFFT group

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Parameters
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[in,out]*pSrcpoints to the in-place buffer of Q31 data type.
[in]fftLenlength of the FFT.
[in]*pCoefpoints to twiddle coefficient buffer.
[in]twidCoefModifiertwiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.
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Returns
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References __SIMD64.

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Referenced by arm_cfft_q31(), arm_cfft_radix4_q31(), and arm_cfft_radix4by2_q31().

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