簡易數(shù)字鐘的單片機課程設計-wenkub
2023-06-18 01:56:55 本頁面
【正文】 ,NH24 MOV HOUR,00H NH24: LCALL DISP JNB HOURK,$ NK3: LJMP WT DELY10MS: MOV R6,10 D1: MOV R7,248 DJNZ R7,$ DJNZ R6,D1 RET DISP: MOV A,DISPBUF ADD A,8 DEC A MOV R1,A MOV A,HOUR MOV B,10 DIV AB MOV R1,A DEC R1 簡易數(shù)字鐘的設計 12 MOV A,B MOV R1,A DEC R1 MOV A,10 MOVR1,A DEC R1 MOV A,MINITE MOV B,10 DIV AB MOV R1,A DEC R1 MOV A,B MOV R1,A DEC R1 MOV A,10 MOVR1,A DEC R1 MOV A,SECOND MOV B,10 DIV AB MOV R1,A DEC R1 MOV A,B MOV R1,A DEC R1 RET INT_T0: MOV TH0,(655362021) / 256 MOV TL0,(655362021) MOD 256 MOV A,DISPBUF ADD A,DISPBIT 簡易數(shù)字鐘的設計 13 MOV R0,A MOV A,R0 MOV DPTR,TABLE MOVC A,A+DPTR MOV P1,A MOV A,DISPBIT MOV DPTR,TAB MOVC A,A+DPTR MOV P3,A INC DISPBIT MOV A,DISPBIT CJNE A,08H,KNA MOV DISPBIT,00H KNA: INC T2SCNTA MOV A,T2SCNTA CJNE A,100,DONE MOV T2SCNTA,00H INC T2SCNTB MOV A,T2SCNTB CJNE A,05H,DONE MOV T2SCNTB,00H INC SECOND MOV A,SECOND CJNE A,60,NEXT MOV SECOND,00H INC MINITE MOV A,MINITE CJNE A,60,NEXT MOV MINITE,00H INC HOUR MOV A,HOUR 簡易數(shù)字鐘的設計 14 CJNE A,24,NEXT MOV HOUR,00H NEXT: LCALL DISP DONE: RETI TABLE: DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,40H TAB: DB 0FEH,0FDH,0FBH,0F7H,0EFH,0DFH,0BFH
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