1. Apparently there is no library for 32-bit FIR and thus we created our own 32-bit filter.
2. EDMA3 inside the IVA2.2 DSP megamodule can do the McBSP - EDMA transfer efficiently.
3. Apparently the DSP is plenty fast for the algorithm needed. The challenge were efficiently using the EDMA3 to move data between DDR and internal DSP memory.
Regards,
Sy