1.8.2.9 mchp_rfft_init_q31()
mchp_status mchp_rfft_init_q31 (mchp_rfft_instance_q31 * S, uint32_t fftLenReal, uint32_t ifftFlagR, uint32_t bitReverseFlag)
Initialize a Q31 real FFT instance (ARM-compatible signature).
| in,out | S |
Points to an mchp_rfft_instance_q31 structure. |
| in | fftLenReal |
Length of the real sequence. |
| in | ifftFlagR |
0 = forward RFFT, 1 = inverse RFFT. |
| in | bitReverseFlag |
0 = disable bit reversal, 1 = enable (always enabled). |
MCHP_MATH_SUCCESS Operation successful. MCHP_MATH_ARGUMENT_ERROR fftLenReal is not a supported length. |