Deprecated List

Global arm_cfft_radix2_f32 (const arm_cfft_radix2_instance_f32 *S, float32_t *pSrc)

Do not use this function. It has been superseded by arm_cfft_f32 and will be removed in the future.

Parameters

[in]	*S	points to an instance of the floating-point Radix-2 CFFT/CIFFT structure.
[in,out]	*pSrc	points to the complex data buffer of size 2*fftLen. Processing occurs in-place.

Returns

none.

Global arm_cfft_radix2_init_f32 (arm_cfft_radix2_instance_f32 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)

Do not use this function. It has been superseded by arm_cfft_f32 and will be removed in the future.

Parameters

[in,out]	*S	points to an instance of the floating-point CFFT/CIFFT structure.
[in]	fftLen	length of the FFT.
[in]	ifftFlag	flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform.
[in]	bitReverseFlag	flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output.

Returns

The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if fftLen is not a supported value.

Global arm_cfft_radix2_init_q15 (arm_cfft_radix2_instance_q15 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)

Do not use this function. It has been superseded by arm_cfft_q15 and will be removed

Parameters

[in,out]	*S	points to an instance of the Q15 CFFT/CIFFT structure.
[in]	fftLen	length of the FFT.
[in]	ifftFlag	flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform.
[in]	bitReverseFlag	flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output.

Returns

The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if fftLen is not a supported value.

Global arm_cfft_radix2_init_q31 (arm_cfft_radix2_instance_q31 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)

Do not use this function. It has been superseded by arm_cfft_q31 and will be removed

Parameters

[in,out]	*S	points to an instance of the Q31 CFFT/CIFFT structure.
[in]	fftLen	length of the FFT.
[in]	ifftFlag	flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform.
[in]	bitReverseFlag	flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output.

Returns

The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if fftLen is not a supported value.

Global arm_cfft_radix2_q15 (const arm_cfft_radix2_instance_q15 *S, q15_t *pSrc)

Do not use this function. It has been superseded by arm_cfft_q15 and will be removed

Parameters

[in]	*S	points to an instance of the fixed-point CFFT/CIFFT structure.
[in,out]	*pSrc	points to the complex data buffer of size 2*fftLen. Processing occurs in-place.

Returns

none.

Global arm_cfft_radix2_q31 (const arm_cfft_radix2_instance_q31 *S, q31_t *pSrc)

Do not use this function. It has been superseded by arm_cfft_q31 and will be removed

Parameters

[in]	*S	points to an instance of the fixed-point CFFT/CIFFT structure.
[in,out]	*pSrc	points to the complex data buffer of size 2*fftLen. Processing occurs in-place.

Returns

none.

Global arm_cfft_radix4_f32 (const arm_cfft_radix4_instance_f32 *S, float32_t *pSrc)

Do not use this function. It has been superseded by arm_cfft_f32 and will be removed in the future.

Parameters

[in]	*S	points to an instance of the floating-point Radix-4 CFFT/CIFFT structure.
[in,out]	*pSrc	points to the complex data buffer of size 2*fftLen. Processing occurs in-place.

Returns

none.

Global arm_cfft_radix4_init_f32 (arm_cfft_radix4_instance_f32 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)

Do not use this function. It has been superceded by arm_cfft_f32 and will be removed in the future.

Parameters

[in,out]	*S	points to an instance of the floating-point CFFT/CIFFT structure.
[in]	fftLen	length of the FFT.
[in]	ifftFlag	flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform.
[in]	bitReverseFlag	flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output.

Returns

The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if fftLen is not a supported value.

Global arm_cfft_radix4_init_q15 (arm_cfft_radix4_instance_q15 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)

Do not use this function. It has been superseded by arm_cfft_q15 and will be removed

Parameters

[in,out]	*S	points to an instance of the Q15 CFFT/CIFFT structure.
[in]	fftLen	length of the FFT.
[in]	ifftFlag	flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform.
[in]	bitReverseFlag	flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output.

Returns

The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if fftLen is not a supported value.

Global arm_cfft_radix4_init_q31 (arm_cfft_radix4_instance_q31 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)

Do not use this function. It has been superseded by arm_cfft_q31 and will be removed

Parameters

[in,out]	*S	points to an instance of the Q31 CFFT/CIFFT structure.
[in]	fftLen	length of the FFT.
[in]	ifftFlag	flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform.
[in]	bitReverseFlag	flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output.

Returns

The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if fftLen is not a supported value.

Global arm_cfft_radix4_q15 (const arm_cfft_radix4_instance_q15 *S, q15_t *pSrc)

Do not use this function. It has been superseded by arm_cfft_q15 and will be removed

Parameters

[in]	*S	points to an instance of the Q15 CFFT/CIFFT structure.
[in,out]	*pSrc	points to the complex data buffer. Processing occurs in-place.

Returns

none.

Global arm_cfft_radix4_q31 (const arm_cfft_radix4_instance_q31 *S, q31_t *pSrc)

Do not use this function. It has been superseded by arm_cfft_q31 and will be removed

Parameters

[in]	*S	points to an instance of the Q31 CFFT/CIFFT structure.
[in,out]	*pSrc	points to the complex data buffer of size 2*fftLen. Processing occurs in-place.

Returns

none.

Global arm_rfft_f32 (const arm_rfft_instance_f32 *S, float32_t *pSrc, float32_t *pDst)

Do not use this function. It has been superceded by arm_rfft_fast_f32 and will be removed in the future.

Parameters

[in]	*S	points to an instance of the floating-point RFFT/RIFFT structure.
[in]	*pSrc	points to the input buffer.
[out]	*pDst	points to the output buffer.

Returns

none.