1.4.2.1 mchp_biquad_cascade_df1_init_q31()
void mchp_biquad_cascade_df1_init_q31 (mchp_biquad_cascade_df1_instance_q31 * S, uint8_t numStages, const q31_t * pCoeffs, q31_t * pState, int8_t postShift)
Initialization function for the Q31 direct form I Biquad cascade filter.
| in,out | S |
points to an instance of the filter data structure. |
| in | numStages |
number of 2nd order stages in the filter. |
| in | pCoeffs |
points to the filter coefficients. |
| in | pState |
points to the state buffer. |
| in | postShift |
bit shift applied to output of each stage. |