LCD模块和PIC单片机接口

ThisapplicationnoteinterfacesamidrangePICmicro

devicetoaHitachi



LM032LLCDcharacterdisplay

module,withatwolinebytwentycharacterdisplay.LCD

modulesareusefulfordisplayingtextinformationfroma

system.Inlargevolumeapplications,theuseofcustom

LCDdisplaysbecomeseconomical.Theroutinespro-

videdshouldbeagoodstartingpointforuserswhose

applicationsimplementacustomLCD.Thissourcecode

shouldbecompatiblewiththePIC16C5Xdevices,after

modificationsforthespecialfunctionregister

initialization,buthasnotbeenverifiedonthosedevices.AN587InterfacingPICmicroMCUstoanLCDModuleTABLE1:CONTROLSIGNALFUNCTIONSAuthor:MarkPalmerCode:MarkPalmer/ScottFinkControlMicrochipTechnologyInc.FunctionSIgnalECausesdata/controlstatetobelatchedINTRODUCTIONRisingEdge=Latchescontrolstate