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          EEPW首頁 > 嵌入式系統(tǒng) > 設(shè)計(jì)應(yīng)用 > 單片機(jī)數(shù)字電子時(shí)鐘系統(tǒng)

          單片機(jī)數(shù)字電子時(shí)鐘系統(tǒng)

          作者: 時(shí)間:2012-10-24 來源:網(wǎng)絡(luò) 收藏

          系統(tǒng)的開發(fā)。其實(shí),這個(gè)花了我一個(gè)禮拜的時(shí)間。從剛開始的顯示模塊,到鍵盤模塊,我都一步一步

          實(shí)現(xiàn)。當(dāng)然,這其中,也遇到了很多困難,麻煩!剛開始,數(shù)碼管部分一點(diǎn)不顯示,鍵盤也沒用,很煩人,很惱火。

          但是,我還是把程序調(diào)試出來了,并且在硬件上運(yùn)行達(dá)到效果。本以為這幾部分實(shí)現(xiàn)了后,聯(lián)合在一塊,偶的就OK 了。然而,我錯(cuò)了,一個(gè)模塊運(yùn)行成功并不意味著模塊組成的系統(tǒng)就能按照預(yù)想的一樣達(dá)到目的,實(shí)現(xiàn)功能!當(dāng)我將幾個(gè)模塊結(jié)合在一塊時(shí)候,問題有接踵而至!哎呀!煩人??!我只能重新設(shè)計(jì)方案,重新檢查,重新寫程序,源代碼寫了

          一遍又一遍,程序調(diào)了又調(diào),程序一遍又一遍地下載到中運(yùn)行,觀察現(xiàn)象,分析出錯(cuò)原因,找出解決辦法!最終,

          在我的不斷努力下,我的成功的實(shí)現(xiàn)了所有的功能,達(dá)到了預(yù)期的效果!!先把我寫了好多遍,

          調(diào)試了好多遍的源代碼上傳,來和大家一起分享一下!!


          ORG 0000H
          SJMP START
          ORG 0003H
          LJMP INTT0
          ORG 000BH
          LJMP TIME0
          ORG 001BH
          LJMP TIME1
          ORG 0045H
          START:MOV SP,#60H
          SETB EA
          SETB ET0
          SETB ET1
          MOV TMOD,#11H
          MOV TL0,#0B0H
          MOV TH0,#3CH
          MOV TL1,#80H
          MOV TH1,#0C1H
          SETB EX0
          CLR IT0
          SETB PX0
          MOV R0,#20
          MOV 40H,#0
          MOV 41H,#0
          MOV 42H,#0
          MOV 30H,#0
          MOV 31H,#0
          MOV 32H,#0
          MOV 33H,#0
          MOV 34H,#0
          MOV 35H,#0
          MOV P2,#0FFH
          SETB TR0
          SETB TR1
          SJMP $
          INTT0:CLR TR0
          CLR TR1
          PUSH ACC
          PUSH PSW
          LCALL DISP
          MOV P1,#0FFH
          KEY1:JNB P1.0,ST
          LCALL DISP
          JNB P1.1,MT
          LCALL DISP
          JNB P1.2,HT
          LCALL DISP
          JNB P1.3,COMN
          LCALL DISP
          SJMP KEY1
          COMN:LCALL CONT
          ST:LCALL DELAY2
          JB P1.0,KEY1
          JNB P1.0,$
          INC 40H
          MOV A,40H
          MOV B,#10
          DIV AB
          MOV 31H,A
          MOV A,B
          MOV 30H,A
          LCALL DISP
          MOV A,40H
          CJNE A,#60,KEY1
          MOV 30H,#0
          MOV 31H,#0
          MOV 40H,#0
          LJMP KEY1
          MT:LCALL DELAY2
          JB P1.1,KEY1
          JNB P1.1,$
          INC 41H
          MOV A,41H
          MOV B,#10
          DIV AB
          MOV 33H,A
          MOV A,B
          MOV 32H,A
          LCALL DISP
          MOV A,41H
          CJNE A,#60,KEY1
          MOV 32H,#0
          MOV 33H,#0
          MOV 41H,#0
          LJMP KEY1
          HT:LCALL DELAY2
          JB P1.2,KEY1
          JNB P1.2,$
          INC 42H
          MOV A,42H
          MOV B,#10
          DIV AB
          MOV 35H,A
          MOV A,B
          MOV 34H,A
          LCALL DISP
          MOV A,42H
          CJNE A,#24,KEYPRESS
          MOV 34H,#0
          MOV 35H,#0
          MOV 42H,#0
          LJMP KEY1
          KEYPRESS:LCALL KEY1
          CONT:LCALL DELAY2
          JB P1.3,KEYPRESS
          JNB P1.3,$
          SETB TR0
          SETB TR1
          POP PSW
          POP ACC
          RETI
          TIME0:PUSH ACC
          PUSH PSW
          MOV TL0,#0B0H
          MOV TH0,#3CH
          DJNZ R0,BACK
          MOV R0,#20
          INC 40H
          MOV A,40H
          MOV B,#10
          DIV AB
          MOV 31H,A
          MOV A,B
          MOV 30H,A
          MOV A,40H
          CJNE A,#60,BACK
          MOV 30H,#0
          MOV 31H,#0
          MOV 40H,#0
          INC 41H
          MOV A,41H
          MOV B,#10
          DIV AB
          MOV 33H,A
          MOV A,B
          MOV 32H,A
          MOV A,41H
          CJNE A,#60,BACK
          MOV 32H,#0
          MOV 33H,#0
          MOV 41H,#0
          INC 42H
          MOV A,42H
          MOV B,#10
          DIV AB
          MOV 35H,A
          MOV A,B
          MOV 34H,A
          MOV A,42H
          CJNE A,#24,BACK
          MOV 42H,#0
          MOV 34H,#0
          MOV 35H,#0
          MOV 30H,#0
          MOV 31H,#0
          MOV 32H,#0
          MOV 33H,#0
          BACK:POP PSW
          POP ACC
          RETI
          TIME1:PUSH ACC
          PUSH PSW
          MOV TL1,#80H
          MOV TH1,#0C1H
          LCALL DISP
          POP PSW
          POP ACC
          RETI
          DISP:MOV DPTR,#TAB1
          MOV A,30H
          MOVC A,@A+DPTR
          MOV P0,A
          SETB P2.0
          CLR P2.5
          LCALL DELAY1
          SETB P2.5
          MOV A,31H
          MOVC A,@A+DPTR
          MOV P0,A
          SETB P2.0
          CLR P2.4
          LCALL DELAY1
          MOV DPTR,#TAB2
          MOV A,32H
          MOVC A,@A+DPTR
          SETB P2.4
          MOV P0,A
          SETB P2.0
          CLR P2.3
          LCALL DELAY1
          MOV DPTR,#TAB1
          MOV A,33H
          MOVC A,@A+DPTR
          SETB P2.3
          MOV P0,A
          SETB P2.0
          CLR P2.2
          LCALL DELAY1
          MOV DPTR,#TAB2
          MOV A,34H
          MOVC A,@A+DPTR
          SETB P2.2
          MOV P0,A
          SETB P2.0
          CLR P2.1
          LCALL DELAY1
          MOV DPTR,#TAB1
          MOV A,35H
          MOVC A,@A+DPTR
          SETB P2.1
          MOV P0,A
          CLR P2.0
          LCALL DELAY1
          RET
          DELAY1:MOV R7,#02H
          DL:MOV R6,#0FFH
          DL1:DJNZ R6,DL1
          DJNZ R7,DL
          RET
          DELAY2:MOV R7,#10H
          TS1:MOV R6,#0FFH
          TS2:DJNZ R6,TS2
          DJNZ R7,TS1
          RET
          TAB1:DB 0C0H,0F9H,0A4H,0B0H,99H
          DB 92H,82H,0F8H,80H,90H
          TAB2:DB 40H,79H,24H,30H,19H
          DB 12H,02H,78H,00H,10H
          END



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