Eli Hughes
V4.0.1 of the ARM CMSIS DSP libraries. Note that arm_bitreversal2.s, arm_cfft_f32.c and arm_rfft_fast_f32.c had to be removed. arm_bitreversal2.s will not assemble with the online tools. So, the fast f32 FFT functions are not yet available. All the other FFT functions are available.
Dependents: MPU9150_Example fir_f32 fir_f32 MPU9150_nucleo_noni2cdev ... more
arm_biquad_cas_df1_32x64_ins_q31 Struct Reference
Instance structure for the high precision Q31 Biquad cascade filter. More...
#include <arm_math.h>
Data Fields | |
| uint8_t | numStages |
| number of 2nd order stages in the filter. | |
| q63_t * | pState |
| points to the array of state coefficients. | |
| q31_t * | pCoeffs |
| points to the array of coefficients. | |
| uint8_t | postShift |
| additional shift, in bits, applied to each output sample. | |
Detailed Description
Instance structure for the high precision Q31 Biquad cascade filter.
Definition at line 3708 of file arm_math.h.
Field Documentation
| uint8_t numStages |
number of 2nd order stages in the filter.
Overall order is 2*numStages.
Definition at line 3710 of file arm_math.h.
| q31_t* pCoeffs |
points to the array of coefficients.
The array is of length 5*numStages.
Definition at line 3712 of file arm_math.h.
| uint8_t postShift |
additional shift, in bits, applied to each output sample.
Definition at line 3713 of file arm_math.h.
| q63_t* pState |
points to the array of state coefficients.
The array is of length 4*numStages.
Definition at line 3711 of file arm_math.h.
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