I have found the AN852 by Microchip on how to implement efficient FIR and IIR digital filters using PIC18 microcontrollers. Though, I am having problems trying to use the assembly codes in C. Does anybody know of an implementation of DSP functions that I can use in C for the PIC18 that uses the hardware multipliers?
Have you got the greatest 48 bit multiplier ever conceived? Prove it - post your code here.
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