基于89c51單片機擴展8155顯示電子鐘設(shè)計-文庫吧資料
2025-06-06 08:56本頁面
【正文】 按確定 （5）設(shè)置完成，就可以添加事先編好的 *.asm 文件程序編譯運行（四）、編寫新程序事例 圖11 圖12在菜單欄File （文件）選項的下拉菜單中選擇 New… （新建文件），見 圖11 ，選擇后出現(xiàn) 圖12 文本編輯框，輸入?yún)R編程序 圖13在輸入程序標點符號時注意，應(yīng)在沒有中文輸入法狀態(tài)，如圖13輸入程序：ORG 0000H AJMP MAIN ORG 0030HMAIN: MOV R0,20H ；(R0)= MOV R2,0FH ；(R2)= MOV A,00HA1: MOV R0,A 。***********閃動調(diào)時 程 序***********。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。WAIT0:ACALL SHOWACALL DIRJNB K1,WAIT0INC STATUSMOV A,STATUSCLR ET0CLR TR0SETB ET1 。實現(xiàn)調(diào)整時間子程序。其他子程序。DJNZ R6,$DJNZ R7,DEL1。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。轉(zhuǎn)換分數(shù)據(jù)MOV A,MMMOV B,10DIV ABMOV DISM3,AMOV A,BMOV DISM2,A。恢復(fù)累加器RETI。MOV SS,0MOV MM,0MOV HH,0NEXT:POP PSW 。MM清零MOV A,HH。INC HH。SS清零MOV A,MM。INC MM。秒計數(shù)器加一MOV SEC,0。CJNE A,14H,NEXT。狀態(tài)字入棧保護MOV TH0,3CHMOV TL0,0B0HINC SEC。中斷服務(wù)程序PUSH ACC。允許T0中斷SETB TR0 。定時50MSMOV TL1,0B0HSETB EA。定時器T0，工作模式1MOV TH0,3CH 。INIT_T0: 。無窮循環(huán)LOOP: ACALL SHOWACALL DIR
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