基于單片機(jī)的多功能秒表系統(tǒng)課程設(shè)計(jì)-資料下載頁(yè)
2025-01-16 13:16本頁(yè)面
【正文】 20H, 00H MOV 30H, 00H MOV 31H, 00H ACALL DISPSJMP HEREJILU : MOV A,20H 。暫停記錄程序 MOV @R1, A INC R1DJNZ R2, HERE MOV R1, 71H SJMP STOPXIAFAN: MOV A,@R1 。下翻程序 MOV 20H, A MOV B, 0AH DIV AB MOV 31H, A MOV 30H, B LCALL DISP INC R1 DJNZ R2, HERE MOV R1, 74H SJMP STOPSHANGFAN:MOV A,@R1 。上翻程序 MOV 20H, A MOV B, 0AH DIV AB MOV 31H, A MOV 30H, B LCALL DISP DEC R1 DJNZ R3, HERE MOV R1, 71H SJMP STOPKUAIJIA:SETB TR1 ?？旒映绦? CLR TR0HEE: JNB TF1, HEE CLR TF1 ACALL JIA1 ACALL DISP JNB , STOP SJMP HEEHERE: LJMP ML1ZHONGDUAN: SETB TR0 。啟動(dòng)定時(shí)器0 CLR TR1 RETITIME1: PUSH ACC 。定時(shí)1秒 PUSH PSW MOV TH0, 0D8H MOV TL0, 0F0H DJNZ 40H, RET0 LCALL JIA1 LCALL DISP MOV 40H, 100RET0: POP PSW POP ACC RETITIME10: PUSH ACC 。定時(shí)10毫秒 PUSH PSW MOV TH0, 0D8H MOV TL0, 0F0HRET1: POP PSW POP ACC RETIJIA1: MOV A,20H 。加1 CLR C INC A CJNE A, 100, GO1 MOV 20H, 00H RETGO1: MOV 20H, A MOV B, 0AH DIV AB MOV 31H, A MOV 30H, B RETDISP: MOV R0,30H 。顯示 MOV R3, 0FEH MOV A, R3PLAY: MOV P2, A MOV A,@R0 MOV DPTR, DSEG1 MOVC A,@A+DPTR MOV P0, A LCALL DL1 MOV P2, 0FFH MOV A, R3 RL A JNB , LD1 INC R0 MOV R3, A LJMP PLAYLD1: RETDL1: MOV R7, 05HDL: MOV R6, 0FFHDL6: DJNZ R6, $ DJNZ R7, DL RETDELAY10:MOV R4,14H 。延時(shí)10毫秒DL00: MOV R5, 0FFHDL11: DJNZ R5, DL11 DJNZ R4, DL00 RETDSEG1: DB 3FH, 06H, 5BH, 4FH, 66H DB 6DH, 7DH, 07H, 7FH, 6FHEND附2：系統(tǒng)原理圖：
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