基于PIC单片机的KEELOQ接收系统与应答

Anumberofremoteaccessapplicationsrelyonthe

userverifyingiftheaccesspoint(gate,door,vehicle,

etc.)hasbeenproperlyclosedoropened.This

applicationnotedescribesasystembywhichthe

accesspoint(receiver)respondsbacktotheremote

transmitterwithastatusmessage.AN1329PICMCU-BasedKEELOQReceiverSystemwithAcknowledgeTRANSMITTERLEARNINGAuthor:CristianTomaMicrochipTechnologyInc.Thereceiverwillrespondonlytoknowntransmitters.Thismeansthat,beforeatransmittercanbeusedwithareceiver,itmustbelearned.Bylearning,wedefineINTRODUCTIONtheprocessbywhichthereceivergathersandstoresinformationaboutatrans