單片機(jī)課程設(shè)計(jì)--電子密碼鎖(文件)
【正文】 IEND。==================T0中斷程序=======================SUB1: DJNZ 64H,OVER1MOV 64H,20MOV A,65HCJNE A,0,LKJMP KLLK: DJNZ 65H,OVER1JMP OVER1 。=MOV R7,A 。==================移動hello字樣===================HELLO: MOV 35H,0MOV R1,35HMOV R5,50MOV R4,14LB: MOV DPTR,TABLE4MOV R7,0FEHMOV R6,8MOV R1,35HLM: MOV P2,R7MOV A,R1MOVC A,A+DPTRMOV P0,ACALL YS_1S 。初始密碼MOV 5DH,1 。顯示一條“”MOV 48H,10 。顯示一條“”MOV 44H,10 。====================分離秒==========================FENLI: MOV DPTR,TABLEMOV A,65HMOV B,10DIV ABMOV 42H,AMOV 52H,AMOV A,BMOV 41H,AMOV 51H,ARET。==================顯示程序=========================DISPLAY: CALL FENLIMOV DPTR,TABLEMOV R7,0BFH 。設(shè)置cpu工作寄存器為第三組MOV R0,57HMOV R1,58HQ1: MOV A,R0MOV R1,ADEC R0DEC R1CJNE R0,50H,Q1。密碼正確JMP OVER4OVER5: MOV 4DH,0 。==================密碼比較程序1=================MI_BJ: MOV R0,53HMOV R1,3AHBJI: MOV A,R0CLR CSUBB A,R1MOV ,CJBC ,OVE2MOV A,R1CLR CSUBB A,R0MOV ,CJBC ,OVE2INC R0INC R1CJNE R0,59H,BJIMOV 4DH,1 。0,1,2,3的鍵碼DB 0DEH,0DDH,0DBH,0D7H 。==================清0===================CLRMM:MOV A,0MOV 53H,AMOV 54H,AMOV 55H,AMOV 56H,AMOV 57H,AMOV 58H,AMOV 4AH,ARET。判斷按鍵有沒有放開MOV A,P3 。數(shù)字0～9MOV 53H,R0INC 59H 。不輸入狀態(tài)MOV P0,86HMOV P2,7FH 。數(shù)碼管全滅MOV 4BH,0 。顯示變?yōu)槊艽a顯示的模式MOV 4DH,0 。存入新密碼CALL CLRMMMOV 4EH,0 。顯示確認(rèn)新密碼的燈JMP KEYOFFGAIMI2: CALL MI_BJ 。第一次輸入的密碼暫存到3a到3fCALL CLRMMMOV 4BH,1INC 4EH 。密碼重新輸入清0（不輸入）MOV 6EH,0 。密碼錯誤次數(shù)清0MOV 6EH,0 。顯示一個“P”MOV 39H,1 。判斷有沒有輸入密碼JMP KEYOFFJ10: MOV A,4EHCJNE A,1,OK1 。顯示管開兩位JA: JMP KEYOFFKE: JMP KEY6KEY5: CJNE A,15,KE 。顯示一個“∩”CLR TR1JH: JMP KEYOFFKEY4: CJNE A,14,KEY5 。修改密碼鍵無效MOV 4CH,0 。門已關(guān)按鍵解鎖（輸入密碼鍵有效）MOV P0,88HMOV P2,7FH 。關(guān)門MOV A,38HCJNE A,1,XA 。定時器20秒倒計(jì)時MOV 65H,40 。判斷修改密碼是不是已經(jīng)被激活(密碼是否正確)MOV A,4EHCJNE A,0,XA 。輸入密碼鍵激活SETB TR0 。輸入密碼的燈亮MOV 64H,20 。設(shè)置cpu工作寄存器為第1組MOV P3,0F0HMOV A,P3ANL A,0F0HMOV B,AMOV P3,0FHMOV A,P3ANL A,0FHORL A,BMOV B,AMOV R0,00HMOV DPTR,TABLOP: MOV A,R0MOVC A,A+DPTRCJNE A,B,NEXT2JMP RR0NEXT2: INC R0CJNE R0,10H,LOPJMP OVERRR0: MOV A,R0CJNE A,12,KEY1 。跳到報(bào)警信號BAOJ1: MOV A,67HCJNE A,1,XS 。報(bào)警停止JMP STARTBAOJ: MOV A,65HCJNE A,0,BAOJ1 。延時1msCALL YS_1S 。密碼延時警告次數(shù)清0MAIN: CALL HELLO
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