【正文】 DEC A MOV 53H,A MOV A,36H DEC A MOV 37H,A SETB TR0 SETB TR1 W1: LCALL DELAY30 INC 40H LCALL KS JNZ STOP LJMP NEXT20 STOP: CLR TR0 CLR TR1 LJMP MAIN0 TTM12: LCALL K2 MOV A,37H CJNE A,0EH,TTM13 CLR TR1 LCALL DELAY1 TTM120:LCALL KS LCALL DELAY1 JZ TTM120 LCALL K2 MOV A,37H CJNE A,0EH,TTM120 MOV L50MS,20 SECSET: MOV A,SEC MOV B,10 DIV AB ADD A,30H MOV P0,0CEH CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MOV P0,0CFH CALL ENABLE CALL WRITE2 MOV A,SEC INC A MOV SEC,A XRL A,60 X4: JNZ OUT CALL ENABLE CALL WRITE2 MOV A,MIN MOV B,3 MUL AB MOV B,100 DIV AB MOV R2,A MOV A,10 XCH A,B DIV AB MOV A,MIN XRL A,60 JNZ OUT HOUSET: MOV MIN,00H MOV A,HOU MOV B,10 DIV AB ADD A,30H MOV P0,0C8H CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MINSET: MOV SEC,00H MOV A,MIN INC A MOV MIN,A MOV B,10 DIV AB ADD A,30H MOV P0,0CBH CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MOV P0,0CCH MOV L50MS,20 MOV L1MS,00H MOV L250MS,00H MOV SEC,00H MOV MIN,00H MOV HOU,00H RETI DELAY30: MOV R7,2 W2: MOV R4,125 W3: MOV R3,248 第一首《精忠報國》 TABLE10: DB 66H,52H,36H,22H,12H,12H,22H,32H,98H,84H,82H,92H,14H,12H,22H DB 32H,52H,22H,42H,38H,66H,52H,36H,22H,12H,22H,22H,32H,98H DB 24H,22H,32H,54H,52H,32H,92H,12H,92H,82H,98H,66H,52H,36H,22H DB 12H,12H,22H,32H,98H,84H,82H,92H,14H,12H,22H,32H,52H,22H,42H,38H DB 66H,52H,36H,22H,12H,22H,22H,32H,98H,24H,22H,32H,54H,52H,32H DJNZ R3,$ DJNZ R4,W3 DJNZ R7,W2 DJNZ R1,DELAY30 RET TABLE00: DW 64580,64684,64777,64820 DW 64898,64968,65030,64260 DW 64400,64524,65058,63835,64021 DB 22H,12H,92H,82H,98H,14H,24H,34H,44H,64H,0B4H,64H,32H,52H DB 62H,0B2H,62H,52H,38H,24H,22H,32H,54H,52H,62H,52H,32H,32H,22H,38H DB 64H,0B4H,64H,32H,52H,62H,0B2H,62H,52H,38H,22H,22H,22H,32H,52H,52H DB 52H,62H,7FH,74H,04H,58H,6FH DB 00 第二首《月亮代表我的心》 TABLE20: DB 02H,82H DB 16H,32H,54H,02H,52H DB 0A6H,32H,54H,02H,52H DB 64H,74H,0B6H,64H DB 52H,5CH,32H,22H DB 16H,12H,14H,32H,22H DB 16H,12H,14H,22H,32H DB 26H,12H,94H,22H,32H DB 2CH DB 32H,52H DB 36H,22H,14H,54H DB 0ACH,92H,0A2H DB 96H,0A2H,96H,82H DB 3CH,54H DB 36H,22H,14H,54H DB 0ACH,92H,0A2H DB 16H,12H,14H,22H,32H DB 2CH,02H,82H DB 16H,32H,56H,12H DB 0A6H,32H,56H,52H DB 66H,72H,0B6H,62H DB 62H,52H,58H,32H,22H DB 16H,12H,14H,32H,22H DB 16H,12H,14H,22H,32H DB 26H,92H,0A4H,12H,22H DB 1CH DB 00 。,0FEH TABLE3: DB 30H,31H,32H,33H DB 34H,35H,36H,37H DB 38h,39H,41H,42H DB 43H,44H,45H,46H MAIN0:MOV TMOD,11H MOV IE,8AH 。,0FEH TABLE4: DB 39。,0FEH TABLE2: DB 39。 MOV P0,0C8H CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MOV P0,0C9H CALL ENABLE CALL WRITE2 MOV A,3AH MOV P0,0DH CALL ENABLE CALL WRITE2 MOV A,MIN MOV B,10 DIV AB ADD A,30H MOV P0,0CBH CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MOV P0,0CCH CALL ENABLE CALL WRITE2 LCALL MAIN0 A88: CJNE A,09H,A99 LCALL MODD MOV 52H,HIGH TABLE90 MOV 53H,LOW TABLE90 LCALL INITILE2 LCALL MAIN0 A99: CJNE A,0AH,AAA LCALL MODD MOV 52H,HIGH TABLE100 MOV 53H,LOW TABLE100 LCALL INITILE2 LCALL MAIN0 AAA: RET INITILE2: MOV L50MS,20 MOV L1MS,00H MOV L250MS,00H MOV SEC,00H MOV MIN,00H MOV HOU,00H ADD A,30H MOV P0,0CEH CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MOV P0,0CFH CALL ENABLE CALL WRITE2 MOV P0,0C0H CALL ENABLE MOV DPTR,TABLE2 CALL WRITE1 RET ENABLE:CLR RS CLR RW CLR E LCALL DELAY SETB E RET WRITE1:MOV R1,00H D1:MOV R5,0FFH DJNZ R5,$ DJNZ R4,D1 RET TAB:DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0f8H DB 80H,90H,88H,83H,0C6H,0A1H,86H,8EH TAB1:DB 89H,86H,0C7H,0C7H,0C0H TAB2:DB 0C6H,88H,0C0H TABLE1: DB 39。 參考文獻 [1] 閻 石 . 數(shù)字電子技術(shù)基礎(chǔ) . 北京 : 高等教育出版社 , 1998 [2] 李葉紫 . MCS51 單片機應(yīng)用教程 . 北京 : 清華大學(xué)出版社 ,2021 [3] 樓然苗 . 51 系列單片機設(shè)計實例 . 北京 : 北京航空航天大學(xué)出版社 ,1999 [4] 黃菊生 . 單片機原理與接口技術(shù) . 北京：國防工業(yè)出版社 [5] 楊西明、朱騏主 . 單片機編程與