Functions | |
void | arm_cfft_f64 (const arm_cfft_instance_f64 *S, float64_t *p1, uint8_t ifftFlag, uint8_t bitReverseFlag) |
Processing function for the Double Precision floating-point complex FFT. | |
arm_status | arm_cfft_init_4096_f64 (arm_cfft_instance_f64 *S) |
Initialization function for the cfft f64 function with 4096 samples. | |
arm_status | arm_cfft_init_2048_f64 (arm_cfft_instance_f64 *S) |
Initialization function for the cfft f64 function with 2048 samples. | |
arm_status | arm_cfft_init_1024_f64 (arm_cfft_instance_f64 *S) |
Initialization function for the cfft f64 function with 1024 samples. | |
arm_status | arm_cfft_init_512_f64 (arm_cfft_instance_f64 *S) |
Initialization function for the cfft f64 function with 512 samples. | |
arm_status | arm_cfft_init_256_f64 (arm_cfft_instance_f64 *S) |
Initialization function for the cfft f64 function with 256 samples. | |
arm_status | arm_cfft_init_128_f64 (arm_cfft_instance_f64 *S) |
Initialization function for the cfft f64 function with 128 samples. | |
arm_status | arm_cfft_init_64_f64 (arm_cfft_instance_f64 *S) |
Initialization function for the cfft f64 function with 64 samples. | |
arm_status | arm_cfft_init_32_f64 (arm_cfft_instance_f64 *S) |
Initialization function for the cfft f64 function with 32 samples. | |
arm_status | arm_cfft_init_16_f64 (arm_cfft_instance_f64 *S) |
Initialization function for the cfft f64 function with 16 samples. | |
arm_status | arm_cfft_init_f64 (arm_cfft_instance_f64 *S, uint16_t fftLen) |
Generic initialization function for the cfft f64 function. | |
void arm_cfft_f64 | ( | const arm_cfft_instance_f64 * | S, |
float64_t * | p1, | ||
uint8_t | ifftFlag, | ||
uint8_t | bitReverseFlag | ||
) |
Processing function for the Double Precision floating-point complex FFT.
[in] | S | points to an instance of the Double Precision floating-point CFFT structure |
[in,out] | p1 | points to the complex data buffer of size 2*fftLen . Processing occurs in-place |
[in] | ifftFlag | flag that selects transform direction
|
[in] | bitReverseFlag | flag that enables / disables bit reversal of output
|
arm_status arm_cfft_init_1024_f64 | ( | arm_cfft_instance_f64 * | S | ) |
Initialization function for the cfft f64 function with 1024 samples.
[in,out] | S | points to an instance of the floating-point CFFT structure |
arm_status arm_cfft_init_128_f64 | ( | arm_cfft_instance_f64 * | S | ) |
Initialization function for the cfft f64 function with 128 samples.
[in,out] | S | points to an instance of the floating-point CFFT structure |
arm_status arm_cfft_init_16_f64 | ( | arm_cfft_instance_f64 * | S | ) |
Initialization function for the cfft f64 function with 16 samples.
[in,out] | S | points to an instance of the floating-point CFFT structure |
arm_status arm_cfft_init_2048_f64 | ( | arm_cfft_instance_f64 * | S | ) |
Initialization function for the cfft f64 function with 2048 samples.
[in,out] | S | points to an instance of the floating-point CFFT structure |
arm_status arm_cfft_init_256_f64 | ( | arm_cfft_instance_f64 * | S | ) |
Initialization function for the cfft f64 function with 256 samples.
[in,out] | S | points to an instance of the floating-point CFFT structure |
arm_status arm_cfft_init_32_f64 | ( | arm_cfft_instance_f64 * | S | ) |
Initialization function for the cfft f64 function with 32 samples.
[in,out] | S | points to an instance of the floating-point CFFT structure |
arm_status arm_cfft_init_4096_f64 | ( | arm_cfft_instance_f64 * | S | ) |
Initialization function for the cfft f64 function with 4096 samples.
[in,out] | S | points to an instance of the floating-point CFFT structure |
arm_status arm_cfft_init_512_f64 | ( | arm_cfft_instance_f64 * | S | ) |
Initialization function for the cfft f64 function with 512 samples.
[in,out] | S | points to an instance of the floating-point CFFT structure |
arm_status arm_cfft_init_64_f64 | ( | arm_cfft_instance_f64 * | S | ) |
Initialization function for the cfft f64 function with 64 samples.
[in,out] | S | points to an instance of the floating-point CFFT structure |
arm_status arm_cfft_init_f64 | ( | arm_cfft_instance_f64 * | S, |
uint16_t | fftLen | ||
) |
Generic initialization function for the cfft f64 function.
[in,out] | S | points to an instance of the floating-point CFFT structure |
[in] | fftLen | fft length (number of complex samples) |