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    CMSIS-DSP
     
   
    
   CMSIS DSP Software Library 
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Instance structure for the floating-point Biquad cascade filter.
Data Fields | |
| uint32_t | numStages | 
| float32_t * | pState | 
| const float32_t * | pCoeffs | 
| uint32_t numStages | 
number of 2nd order stages in the filter. Overall order is 2*numStages.
| const float32_t* pCoeffs | 
Points to the array of coefficients. The array is of length 5*numStages.
| float32_t* pState | 
Points to the array of state coefficients. The array is of length 4*numStages.