Hi,
I am working on a simple (147) tap FIR filter for small application on an OMAP L138 board's C6748 DSP and its BIOS. The idea is to read (noisy) sound from the audio port and filter it sample by sample and send out a clean version through the audio output port. The strange thing is that with out putting any probe points, I am only able to perform only 32 floating point multiplications in my interrupt loop. When I introduce the probe points, I can even perform less multiplications. The sampling frequency I am using is 8000 Hz. I wanted to know whether this really should be problem given that the board has got a 24MHz crystal for the clock because I dont think this should be a problem?