KEELOQ基于微控制器发射器与应答

Thisapplicationnotedescribesthedesignofa

microcontroller-basedKEELOQ

®

transmitterwith

receiveracknowledgeusingtheKEELOQencryption

algorithm.Thistransmitterisimplementedonthe

MicrochipPIC16F636microcontroller.Descriptionsof

theencodingprocess,theencodinghardwareand

descriptionofthesoftwaremodulesareincludedwithin

thisapplicationnote.Thesoftwarewasdesignedtobe

backwardscompatiblewithanHCS365dual

transmitterintermsofmemorymapprogramming.AN1321KEELOQMicrocontroller-BasedTransmitterwithAcknowledgeAuthor:CristianTomaDUALTRANSMITTEROPERATIONMicrochipTechnologyInc.Thisfirmwarecontainstwotransmitterconfigurationswithseparateserialnumbers,transmitterkeys,uservalues,countersandseedvalues.ThismeansthattheINTRODUCTIONtransmittercanbeusedastwoindependentsystems.