單片機課程設(shè)計---出租車計費系統(tǒng)-展示頁
2025-01-25 11:07本頁面
【正文】 ACALL DELAY MOV A,B MOV B,0AH DIV AB MOVC A,A+DPTR MOV P2,04H MOV P0,A ACALL DELAY MOV A,B MOVC A,A+DPTR MOV P2,05H MOV P0,A ACALL DELAY RETDELAY: MOV R5,01H LOOP1: MOV R6,248 DJNZ R6,$ DJNZ R5,LOOP1 RETSEGTAB: DB 3FH,06H,5BH,4FH,66H DB 6DH,7DH,07H,7FH,6FH END ORG 0000H LJMP MAIN ORG 001BH LJMP L1 ORG 0030H MAIN: MOV 70H,0 MOV 71H,0 MOV 72H,0 MOV 73H,0 MOV 74H,0 MOV 75H,0 MOV TMOD,01100000B MOV TH1,255 MOV TL1,255 SETB TR1 L1: JNB TF1,L3 CLR TF1 LCALL COUNT L3: LCALL DISPLAY SJMP L1 COUNT: MOV R1,70H L2: INC R1 CJNE R1,10,BTOM MOV R1,0 INC R1 CJNE R1,76H,L2 MOV R1,70H BTOM: RET DISPLAY: MOV R0,70H MOV R3,0 MOV DPTR,SEG L4: MOV A,R0 MOVC A,A+DPTR MOV P2,R3 MOV P0,A INC R0 INC R3 LCALL D6MS MOV P0,0FFH CJNE R3,6,
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鄂ICP備17016276號-1