I have a question for biquad filter.
I found biquad filter is in library <filter.h>
My question is that library's biquad filter uses IIR accelerator?
you can easily check the code and see that it's calculating the IIRs in the core and not using the accelerator.
As Rainer stated correctly, biquad functions in the filter.h file doesn't use IIR accelerator, rather it uses the core to implement the biquad.
Retrieving data ...