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CMSIS-DSP
Version 1.5.2
CMSIS DSP Software Library
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Instance structure for the high precision Q31 Biquad cascade filter. More...
Data Fields | |
| uint8_t | numStages |
| q63_t * | pState |
| q31_t * | pCoeffs |
| uint8_t | postShift |
| uint8_t arm_biquad_cas_df1_32x64_ins_q31::numStages |
number of 2nd order stages in the filter. Overall order is 2*numStages.
Referenced by arm_biquad_cas_df1_32x64_init_q31(), and arm_biquad_cas_df1_32x64_q31().
| q31_t* arm_biquad_cas_df1_32x64_ins_q31::pCoeffs |
points to the array of coefficients. The array is of length 5*numStages.
Referenced by arm_biquad_cas_df1_32x64_init_q31(), and arm_biquad_cas_df1_32x64_q31().
| uint8_t arm_biquad_cas_df1_32x64_ins_q31::postShift |
additional shift, in bits, applied to each output sample.
Referenced by arm_biquad_cas_df1_32x64_init_q31(), and arm_biquad_cas_df1_32x64_q31().
| q63_t* arm_biquad_cas_df1_32x64_ins_q31::pState |
points to the array of state coefficients. The array is of length 4*numStages.
Referenced by arm_biquad_cas_df1_32x64_init_q31(), and arm_biquad_cas_df1_32x64_q31().