單片機(jī)課程設(shè)計-電子時鐘2968502658-資料下載頁
2025-06-26 04:02本頁面
【正文】 2,$ LCALL DEC14: JB KEY4,1 LCALL DISPLAY JB KEY4,1 JNB KEY4,$ LCALL DISPLAY JNB KEY4,$ MOV DISP,53H MOV 56H,54H MOV 57H,55H MOV R0,56H CPL JB ,1 MOV DISP,SECON CLR 。退出閃爍 CLR TR1LPP1: RET。*********KEY3***********秒表KEYC: JB KEY3,QIN LCALL DISPLAY LCALL DISPLAY JB KEY3,QIN MOV DISP,50H SETB QIN4: LCALL DISPLAY JB KEY1,QIN1 LCALL DISPLAY JB KEY1,QIN1 JNB KEY1,$ SETB TR1QIN1: JB KEY2,QIN2 LCALL DISPLAY JB KEY2,QIN2 JNB KEY2,$ CLR TR1QIN2: JB KEY3,QIN3 LCALL DISPLAY JB KEY3,QIN3 JNB KEY3,$ MOV 50H,00H MOV 51H,00H MOV 52H,00HQIN3: JB KEY4,QIN4 LCALL DISPLAY JB KEY4,QIN4 JNB KEY4,$ CLR QIN: RET 。*********KEY4**********KEYD: JB KEY4,WW1 LCALL DISPLAY LCALL DISPLAY JB KEY4,WW1 JNB KEY4,$ JNB ,WW6 CLR SETB SJMP WW1WW6: JNB ,WW7 CLR SETB SJMP WW1WW7: CLR MOV DISP,37H 。默認(rèn)顯示第一組鬧鈴時間WW2: LCALL DISPLAY JB KEY1,WW3 JNB KEY1,$ JB ,W1 SETB CLR SJMP WW3W1: SETB CLR WW3: JB KEY2,WW4 JNB KEY2,$ JB ,W2 CLR SETB SJMP WW4W2: CLR SETB WW4: JB KEY3,WW5 LCALL DISPLAY JNB KEY3,$ CPL JB ,XXX1 MOV DISP,37H SJMP WW5XXX1: MOV DISP,53HWW5: JB KEY4,WW2 LCALL DISPLAY JB KEY4,WW2 JNB KEY4,$ LCALL DISPLAY JNB KEY4,$ WW1: RET。********加減子程序******。*******加1子程序******ADD1: JB ,MINU1 CJNE @R0,23,LCP4 MOV @R0,0H SJMP EXIT2MINU1: CJNE @R0,59,LCP4 MOV @R0,0H SJMP EXIT2LCP4: INC @R0EXIT2: RET /*減1子程序*/DEC1: CJNE @R0,00,LCP3 JB ,MINU2 MOV @R0,23 SJMP EXIT3MINU2: MOV @R0,60LCP3: DEC @R0EXIT3: RET。******************T1_INT: JB ,SECOND 。為1時為秒表 MOV TL1,0B0H MOV TH1,3CH DJNZ 25H,EEE MOV 25H,6H CPL EEE: RETI。 秒表程序SECOND: PUSH ACC 。在顯示時怕中斷時影響顯示 MOV TL1,0F7H 。本應(yīng)該是0F0H考慮到精度問題 MOV TH1,0D8H INC 50H MOV A,50H CJNE A,100,XIN MOV 50H,00H INC 51H MOV A,51H CJNE A,60,XIN MOV 51H,00H INC 52H MOV A,52H CJNE A,60,XIN MOV 52H,00HXIN: POP ACC RETI END24 / 24
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鄂ICP備17016276號-1