TheMicrochipPICmicro
®
PIC18familyofmicrocontrol-
lersarepopularlyknownfortheirlogicandcontrolling
functions.Inaddition,thesemicrocontrollershavebuilt-
inhardwaremultipliersandmultiplefilepointers.These
features,alongwiththebuilt-inanalog-to-digitalcon-
verter(ADC),makePIC18microcontrollersacompe-
tentchoiceforapplicationswherelogicandcontrolling
functionsarecombinedwithsignalprocessing
applications.MAN852ImplementingFIRandIIRDigitalFiltersUsingPIC18MicrocontrollersAuthor:B.K.AnanthaRamuFIRFILTERIMPLEMENTATIONMicrochipTechnologyDesignsEquation1showsthecomputationperformedbyan(India)Pvt.Ltd.FIRfilter.EQUATION1:Y[N]COMPUTATIONINTRODUCTIONy[n]=x[n]*a0+x[n
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