Filter Design HDL Coder
The design entry input to Filter Design HDL Coder is a quantized filter that you create in one of two ways:
Filter Design HDL Coder supports several important filter structures, including:
Discrete-time finite impulse response (FIR), which includes symmetric, anti-symmetric, and transposed structures
Second-order section (SOS) infinite impulse response (IIR), which includes direct form I, II, and transposed structures
Multirate filters, which includes cascaded integrator-comb (CIC) interpolator and decimator, direct-form FIR and transposed FIR polyphase interpolator and decimator, FIR hold and linear interpolator, and FIR polyphase sample rate converter structures
Fractional delay filters, which includes Farrow structures
Filter Design HDL Coder can generate HDL code from cascaded multirate and discrete-time filters. Each of these single-rate and multirate filter structures supports fixed-point and floating-point (double precision) realizations. In addition, the FIR structures support unsigned fixed-point coefficients.