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標(biāo)題: 單片機(jī)匯編電子時(shí)鐘設(shè)計(jì) [打印本頁(yè)]

作者: iced1104 時(shí)間: 2017-10-13 14:16
標(biāo)題: 單片機(jī)匯編電子時(shí)鐘設(shè)計(jì)
源程序

ORG 0000H

         LJMP MAIN

         ORG 000BH

         LJMP TIME

         ;主程序部分

         ORG 0100H

   MAIN:MOVSP,#50H

         MOV 20H,#00H       ;秒鐘

         MOV 21H,#00H       ;分鐘　

         MOV 22H,#00H       ;小時(shí)　

         MOV 23H,#01H

         MOV 24H,#01H

         MOV 25H,#00H

         MOV 30H,#00H

         MOV 31H,#00H

         MOV 32H,#00H

         MOV 33H,#00H

         MOV 34H,#00H

         MOV 35H,#00H

         MOV TMOD,#01H ;16位計(jì)數(shù)器

         MOV TH0,#03CH ;賦計(jì)數(shù)初值

         MOV TL0,#0B0H

         MOV IE,#87H ;允許外部中斷1和外部中斷0和T0溢出中斷

         SETB TR0          ;啟動(dòng)計(jì)數(shù)器T0

         MOV R2,#14H

         MOV P2,#0FFH

   LOOP:LCALL  DISPLAY1

         JB P1.1,LOOP

         LCALL SETTIME ;調(diào)用設(shè)定時(shí)間程序

         LJMP LOOP

   DELAY:MOV R4,#030H       ;延時(shí)時(shí)間

         DL00:MOV R5,#0FFH

         DL11:MOV R6,#9H

         DL12:DJNZ R6,DL12

         DJNZ R5,DL11

         DJNZ R4,DL00

            RET

         ;設(shè)定時(shí)間程序

         SETTIME:

      L0:LCALL DISPLAY1       ;調(diào)用時(shí)間允許程序

      MM1: JB P1.2,L1

         MOV C,P1.2

         JC MM1

         LCALL DELAY1       ;調(diào)用延時(shí)

         JC MM1

   MSTOP1: MOV C,P1.2

         JNC MSTOP1          ;判斷P1.2是否釋放釋放則繼續(xù)

         LCALL DELAY1       ;調(diào)用延時(shí)

         MOV C,P1.2

         JNC MSTOP1

         INC 22H             ;小時(shí)增加1

         MOV A,22H

         CJNE A,#18H,GO12    ;判斷小時(shí)是否到24時(shí)未到繼續(xù)循環(huán)

         MOV 22H,#00H          ;小時(shí)復(fù)位

         MOV 34H,#00H

         MOV 35H,#00H

         LJMP L0

      L1:JBP1.3,L2

         MOV C,P1.3

         JC L1

         LCALL DELAY1       ;延時(shí)

         JC L1

MSTOP2: MOV C,P1.3

         JNC MSTOP2             ;判斷P1.3是否釋放釋放則繼續(xù)

         LCALL DELAY1          ;調(diào)用延時(shí)

         MOV C,P1.3

         JNC MSTOP2

         INC 21H                ;分鐘增加一

         MOV A,21H

         CJNE A,#3CH,GO11

         MOV 21H,#00H          ;分鐘復(fù)位

         MOV 32H,#00H

         MOV 33H,#00H

         LJMP L0

   GO11:MOV B,#0AH       ;將A中的內(nèi)容分成高低兩部分

         DIV AB

         MOV 32H,B

         MOV 33H,A

         LJMP L0

   GO12: MOV B,#0AH

         DIV AB

         MOV 34H,B

         MOV 35H,A

         LJMP L0

      L2:JB P1.4,L0

         MOV C,P1.4

         JC L2

         LCALL DELAY1       ;調(diào)用延時(shí)

         MOV C,P1.4

         JC L2

STOP1: MOV C,P1.4          ;判斷按鍵P1.4是否釋放？

         JNC STOP1

         LCALL DELAY1       ;調(diào)用延時(shí)

         MOV C,P1.4

         JNC STOP1

         LJMP LOOP

DELAY1:  MOV R4,#14H             ;時(shí)間延時(shí)

DL001: MOV R5,#0FFH

DL111: DJNZ R5,DL111

         DJNZ R4,DL001

         RET

TIME: PUSH ACC                ;現(xiàn)場(chǎng)保護(hù)

         PUSH PSW

      MOV TH0,#03CH          ;賦初值

         MOV TL0,#0B0H

         DJNZ R2,RET0

         MOV R2,#14H

         MOV A,20H

         CLR C

         INC A                         ;秒鐘自加1

         CJNE A,#3CH,GO1             ;判斷秒鐘是否到60秒？

         MOV 20H,#0                   ;到60秒復(fù)位

      MOV 30H,#0

      MOV 31H,#0

         MOV A,21H

         INC A                            ;分鐘自加1

      CJNE A,#3CH,GO2             ;判斷分鐘是否到60分？

      MOV 21H,#0H                   ;到60分復(fù)位

      MOV 32H,#0

      MOV 33H,#0

         MOV A,22H

         INC A                            ;時(shí)鐘自加1

         CJNE A,#18H,GO3             ;判斷時(shí)鐘是否到24時(shí)？

         MOV 22H,#00H                ;到24時(shí)復(fù)位

      MOV 34H,#0

      MOV 35H,#0

         AJMP RET0

GO1: MOV 20H,A

         MOV B,#0AH

         DIV AB

         MOV 31H,A

         MOV 30H,B

         AJMP RET0

   GO2: MOV 21H,A

         MOV B,#0AH

         DIV AB

         MOV 33H,A

         MOV 32H,B

         AJMP RET0

   GO3: MOV 22H,A

         MOV B,#0AH

         DIV AB

         MOV 35H,A

         MOV 34H,B

         AJMPRET0

RET0: POP PSW                ;恢復(fù)現(xiàn)場(chǎng)

         POP ACC

         RETI

      ;運(yùn)行部分

DISPLAY1: MOV R0,#30H

         MOV R3,#0FEH

         MOV A,R3

PLAY1:  MOV P2,A

      MOV A,@R0

      MOV DPTR,#DSEG1    ;表首地址送DPTR

      MOVC A,@A+DPTR

      MOV P0,A

      LCALL DL1

      MOV P2,#0FFH             ;送高電平到P2

      MOV A,R3

      RL A                ;

      JNB ACC.6,LD1

      INC R0

      MOV R3,A

      LJMP PLAY1             ;調(diào)用查表程序

LD1:RET

      ;延時(shí)時(shí)間

DL1: MOV R7,#02H             ;延時(shí)時(shí)間

DL:    MOV R6,#020H

DL6: DJNZ R6,$

         DJNZ R7,DL

         RET

DSEG1:DB 3FH,06H,5BH,4FH,66H ;共陰極數(shù)碼管編碼表

      DB6DH,7DH,07H,7FH,6FH

      END

調(diào)試運(yùn)行

1.jpg (9.2 KB, 下載次數(shù): 18)

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