基于LCD字符++KEY按键显示程序.doc
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1、基于LCD字符+KEY按键显示程序FuncTIon:LCD字符显示+KEY按键处理示例程序*;MICroProcessor:HT48R50A-1/28SKDIP-A*;Author:*;Crystal:4MHz*;*#INCLUDEHT48R50A-1.INCLCD_DATAEQUPCLCD_DATA_CTRLEQUPCCLCD_CTRLEQUPBLCD_CTRL_CTRLEQUPBCEEQU1RSEQU0;-DATA.SECTIONAT60HDATADELAY_COUNTER_1DB?;60HDELAY_COUNTER_2DB?;61HDELAY_COUNTER_3DB?;62HDATADB
2、?;63HCOUNTERDB?;64H;-CODE.SECTIONAT00HCODEORG00HJMPSTARTORG0CHJMPTIMER1ORG20HSTART: MOV A,01111111B MOV PAC,ACALLLCD_RESET MOV A,OFFSETLCD_MESSAGE_1 MOV TBLP,ACALLLCD_DISPLAY MOV A,09H MOV INTC,A MOV A,80H MOV TMR1C,AFIRST_TIME: MOV A,PAANDA,00010000BSUBA,00010000BSZACCJMPFIRST_TIMEPRESS_ANY_KEY: MO
3、V A,OFFSETLCD_MESSAGE_2 MOV TBLP,ACALLLCD_DISPLAYANY_KEY: MOV A,PAANDA,00010000BSUBA,00010000BSZACCJMPANY_KEY MOV A,PAANDA,00001111B MOV DATA,ASUBA,09HSZACCJMPNEXT_CHECKJMPSTARTNEXT_CHECK: MOV A,DATASUBA,08HSZACCJMPPLAY_MONOTONYJMPPLAY_A_SONGPLAY_MONOTONY:CALLMONOTONYJMPANY_KEYPLAY_A_SONG: MOV A,OFF
4、SETLCD_MESSAGE_3 MOV TBLP,ACALLLCD_DISPLAYCLRCOUNTERPLAY_LOOP: MOV A,OFFSETSONG_DATAADDA,COUNTER MOV TBLP,ATABRDLDATADECDATACALLMONOTONYINCCOUNTER MOV A,COUNTERSUBA,4BHSZACCJMPPLAY_LOOPJMPPRESS_ANY_KEYRET;-TIMER1:CPLPARETI;-MONOTONYPROC MOV A,OFFSETMUSIC_DATAADDA,DATA MOV TBLP,ATABRDLDATA MOV A,DATA
5、 MOV TMR1L,A MOV A,TBLPADDA,08H MOV TBLP,ATABRDLDATA MOV A,DATA MOV TMR1H,ASETTMR1C.4CALLDELAY_LONGCLRTMR1C.4RETMONOTONYENDP;-LCD_RESETPROCCLRLCD_DATA_CTRLCLRLCD_CTRL_CTRLCLRLCD_DATACLRLCD_CTRL MOV A,00110011B;STEP0 MOV DATA,A;LCDRESETCALLTRANSFER; MOV A,00110010B;SETP1 MOV DATA,A;FUNCTIONSETCALLTRA
6、NSFER; MOV A,00001100B;STEP2 MOV DATA,A;DISPLAYTURNONCALLTRANSFER; MOV A,00000001B;STEP3 MOV DATA,A;DISPLAYCLEANCALLTRANSFER;CALLDELAY;DELAYSOMETIME MOV A,00000110B;STEP4 MOV DATA,A;ENTRYMODESETCALLTRANSFER;RETLCD_RESETENDP;-LCD_DISPLAYPROC MOV A,10000000B;STEP1 MOV DATA,A;DDRAMADDRESSSETCALLTRANSFE
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