I found AN5305 and the presentation on the ST website but it doesn't fully answer my questions:
How long does it take to calculate a result? Is it one clock cycle for each multiplication and addition?
Is it possible to configure the FMAC so that it can handle multiple data sources? For example I am measuring a velocity, a voltage and a current. Is there a way to put each sample into the FMAC input buffer without reloading the whole buffer (circular)? Is it possible then to perform FIR filtering for each without reloading the coefficients every time?
Is it possible to configure the output buffer size smaller than the input buffer size (I only need the latest filtered value)?
