基于89c51單片機擴展8155顯示電子鐘設(shè)計(編輯修改稿)
2025-06-27 08:56 本頁面
【文章內(nèi)容簡介】 JNZ DIR00DIP:MOV A,03H。MOV DPTR,0F700HMOVX @DPTR,AMOV R0,30HMOV R5,0FEHMOV R4,6DIR0:MOV A,@R0MOV DPTR,TABMOVC A,@A+DPTRMOV DPTR,0F701HMOVX @DPTR,AMOV A,R5MOV DPTR,0F702HMOVX @DPTR,ARL AMOV R5,ALCALL DL1MSINC R0DJNZ R4,DIR0DIROUT:RETDIR00:JB 03H,DIKKAJMP DIPDIKK:JNB 00H,DIKKIMOV A,03H MOV DPTR,0F700HMOVX @DPTR,AMOV R0,30HMOV R5,0FEHMOV R4,2DIRR0:MOV A,00HMOV DPTR,0F701HMOVX @DPTR,AMOV A,R5MOV DPTR,0F702HMOVX @DPTR,ARL AMOV R5,AINC R0DJNZ R4,DIRR0MOV R0,32HMOV R5,0FBHMOV R4,4DIRR1:MOV A,@R0MOV DPTR,TABMOVC A,@A+DPTRMOV DPTR,0F701HMOVX @DPTR,AMOV A,R5MOV DPTR,0F702HMOVX @DPTR,ARL AMOV R5,ALCALL DL1MSINC R0DJNZ R4,DIRR1AJMP DIROUT DIKKI:AJMP DIP DL1MS:MOV R7,6。DEL1:MOV R6,DJNZ R6,$DJNZ R7,DEL1。RETTAB: DB 3FH,06H,5BH,4FH,66H,6DH DB 7DH,07H,7FH,6FH,77H,7CH DB 39H,5EH,7BH,71H,00H,40H 。其他子程序。計時單元清零INIT:MOV HH,23MOV MM,59MOV SS,40MOV SEC,00HMOV FLAG,00HMOV STATUS,00HMOV HSEC,00HRET。實現(xiàn)調(diào)整時間子程序。按鍵處理程序（設(shè)置時間）KEYSCAN: JNB K1,KEYSCAN0 JNB K2,KEYSCAN1KEYOUT:ACALL TIAOSHI1 RETKEYSCAN0:LCALL DL20MSJB K1,KEYOUT。WAIT0:ACALL SHOWACALL DIRJNB K1,WAIT0INC STATUSMOV A,STATUSCLR ET0CLR TR0SETB ET1 。允許T1中斷SETB TR1 。開啟定時器T1CJNE A,04H,KEYOUTMOV STATUS,00SETB ET0SETB TR0CLR ET1CLR TR1CLR 00HCLR 01HCLR 02HCLR 03HSJMP KEYOUTKEYSCAN1: LCALL DL20MSJB K2,KEYOUTWAIT1:ACALL SHOWACALL DIRJNB K2,WAIT1MOV A,STATUSJZ KEYOUTCJNE A,01H,KSCAN11INC SSMOV A,SSCJNE A,3CH,KEYOUTMOV SS,00SJMP KEYOUTKSCAN11:CJNE A,02H,KSCAN21INC MM MOV A,MMCJNE A,3CH,KEYOUTMOV MM,00SJMP KEYOUTKSCAN21:INC HHMOV A,HHCJNE A,18H,KEYOUTMOV HH,00SJMP KEYOUTTIAOSHI1:MOV A,STATUSCJNE A,01H,TIAOSHI2SETB LJMP INTT1JMP RT00TIAOSHI2:CJNE A,02H,TIAOSHI3SETB CLR LJMP INTT1JMP RT00TIAOSHI3:CJNE A,02H,TIAOSHI4SETB CLR LJMP INTT1JMP RT00TIAOSHI4:CJNE A,03H,TIAOSHISETB 02HCLR 01HLJMP INTT1JMP RT00TIAOSHI:CLR 00HCLR 01HCLR 02HCLR 03HRT00:RET。防抖動延時DL20MS:ACALL SHOWACALL DIRACALL SHOWACALL DIRACALL SHOWACALL DIRRET。***********閃動調(diào)時 程 序***********。T1中斷服務(wù)程序，用作時間調(diào)整時調(diào)整單元閃爍指示，定時50msINTT1: MOV TL1, 0B0H 。裝定時器T1定時初值MOV TH1, 3CH DEC HSECMOV A,HSECJNZ INTT1OUTCPL 03H MOV HSEC,0AHINTT1OUT:RETIEND 控制軟件操作從菜單中選擇 Project 的下拉菜單中 New Project ，新建工程項目，見圖1 圖1確定后出現(xiàn)的對話框，輸入新建工程的名字，如example,見圖2（請每個同學(xué)在D盤上建立自己的文件夾，將建立的項目保持在自己的文件夾內(nèi)）
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