Functions | |
void | arm_rfft_fast_f64 (arm_rfft_fast_instance_f64 *S, float64_t *p, float64_t *pOut, uint8_t ifftFlag) |
Processing function for the Double Precision floating-point real FFT. | |
arm_status | arm_rfft_fast_init_32_f64 (arm_rfft_fast_instance_f64 *S) |
Initialization function for the 32pt double precision floating-point real FFT. | |
arm_status | arm_rfft_fast_init_64_f64 (arm_rfft_fast_instance_f64 *S) |
Initialization function for the 64pt Double Precision floating-point real FFT. | |
arm_status | arm_rfft_fast_init_128_f64 (arm_rfft_fast_instance_f64 *S) |
Initialization function for the 128pt Double Precision floating-point real FFT. | |
arm_status | arm_rfft_fast_init_256_f64 (arm_rfft_fast_instance_f64 *S) |
Initialization function for the 256pt Double Precision floating-point real FFT. | |
arm_status | arm_rfft_fast_init_512_f64 (arm_rfft_fast_instance_f64 *S) |
Initialization function for the 512pt Double Precision floating-point real FFT. | |
arm_status | arm_rfft_fast_init_1024_f64 (arm_rfft_fast_instance_f64 *S) |
Initialization function for the 1024pt Double Precision floating-point real FFT. | |
arm_status | arm_rfft_fast_init_2048_f64 (arm_rfft_fast_instance_f64 *S) |
Initialization function for the 2048pt Double Precision floating-point real FFT. | |
arm_status | arm_rfft_fast_init_4096_f64 (arm_rfft_fast_instance_f64 *S) |
Initialization function for the 4096pt Double Precision floating-point real FFT. | |
arm_status | arm_rfft_fast_init_f64 (arm_rfft_fast_instance_f64 *S, uint16_t fftLen) |
Generic initialization function for the Double Precision floating-point real FFT. | |
void arm_rfft_fast_f64 | ( | arm_rfft_fast_instance_f64 * | S, |
float64_t * | p, | ||
float64_t * | pOut, | ||
uint8_t | ifftFlag | ||
) |
Processing function for the Double Precision floating-point real FFT.
[in] | S | points to an arm_rfft_fast_instance_f64 structure |
[in] | p | points to input buffer (Source buffer is modified by this function.) |
[in] | pOut | points to output buffer |
[in] | ifftFlag |
|
arm_status arm_rfft_fast_init_1024_f64 | ( | arm_rfft_fast_instance_f64 * | S | ) |
Initialization function for the 1024pt Double Precision floating-point real FFT.
[in,out] | S | points to an arm_rfft_fast_instance_f64 structure |
arm_status arm_rfft_fast_init_128_f64 | ( | arm_rfft_fast_instance_f64 * | S | ) |
Initialization function for the 128pt Double Precision floating-point real FFT.
[in,out] | S | points to an arm_rfft_fast_instance_f64 structure |
arm_status arm_rfft_fast_init_2048_f64 | ( | arm_rfft_fast_instance_f64 * | S | ) |
Initialization function for the 2048pt Double Precision floating-point real FFT.
[in,out] | S | points to an arm_rfft_fast_instance_f64 structure |
arm_status arm_rfft_fast_init_256_f64 | ( | arm_rfft_fast_instance_f64 * | S | ) |
Initialization function for the 256pt Double Precision floating-point real FFT.
[in,out] | S | points to an arm_rfft_fast_instance_f64 structure |
arm_status arm_rfft_fast_init_32_f64 | ( | arm_rfft_fast_instance_f64 * | S | ) |
Initialization function for the 32pt double precision floating-point real FFT.
[in,out] | S | points to an arm_rfft_fast_instance_f64 structure |
arm_status arm_rfft_fast_init_4096_f64 | ( | arm_rfft_fast_instance_f64 * | S | ) |
Initialization function for the 4096pt Double Precision floating-point real FFT.
[in,out] | S | points to an arm_rfft_fast_instance_f64 structure |
arm_status arm_rfft_fast_init_512_f64 | ( | arm_rfft_fast_instance_f64 * | S | ) |
Initialization function for the 512pt Double Precision floating-point real FFT.
[in,out] | S | points to an arm_rfft_fast_instance_f64 structure |
arm_status arm_rfft_fast_init_64_f64 | ( | arm_rfft_fast_instance_f64 * | S | ) |
Initialization function for the 64pt Double Precision floating-point real FFT.
[in,out] | S | points to an arm_rfft_fast_instance_f64 structure |
arm_status arm_rfft_fast_init_f64 | ( | arm_rfft_fast_instance_f64 * | S, |
uint16_t | fftLen | ||
) |
Generic initialization function for the Double Precision floating-point real FFT.
[in,out] | S | points to an arm_rfft_fast_instance_f64 structure |
[in] | fftLen | length of the Real Sequence |
fftLen
is not a supported lengthfftLen
specifies the length of RFFT/CIFFT process. Supported FFT Lengths are 32, 64, 128, 256, 512, 1024, 2048, 4096.