單片機(jī)課程設(shè)計(jì)-電子時(shí)鐘2968502658(編輯修改稿)
2025-07-23 04:02 本頁面
【文章內(nèi)容簡介】 K4:OK。 KEY1 EQU 。調(diào)時(shí)間調(diào)分再調(diào)時(shí)KEY2 EQU KEY3 EQU KEY4 EQU SECON EQU 22H 。時(shí)鐘的秒MIN EQU 23HHOUR EQU 24HDISP EQU 36H 。顯示的首地址存放BELL BIT ORG 0000H LJMP START ORG 000BH LJMP T0_INT ORG 001BH LJMP T1_INT ORG 0100HSTART: MOV 20H,00H MOV 21H,00H 。 MOV 22H,00H 。1秒計(jì)時(shí) MOV 23H,00H 。1分計(jì)時(shí) MOV 24H,00H 。1h計(jì)時(shí) MOV 38H,01H 。鬧鐘分 MOV 39H,00H 。鬧鐘時(shí) MOV 37H,101 。第一組鬧鐘的首字節(jié)顯示1 MOV 53H,102 。第二組鬧鈴的首字節(jié)顯示”2“ MOV 25H,6H 。中斷1,50ms*6= MOV TMOD,11H MOV TL1,0B0H MOV TH1,3CH MOV TL0,0B0H MOV TH0,3CH SETB ET0 SETB ET1 SETB EA SETB TR0 MOV SP,40H。*********主程序*********MAIN: MOV DISP,SECON LCALL DISPLAY LCALL KEYA LCALL KEYB LCALL KEYC LCALL KEYD SJMP MAIN /*數(shù)碼管顯示*/DISPLAY:PUSH PSW MOV PSW,08H 。用第二組寄存器 MOV R0,DISP MOV R1,30H MOV R4,03H。秒分時(shí)LOOP0: MOV A,@R0 MOV B,10 DIV AB MOV @R1,B INC R1 MOV @R1,A INC R0 INC R1 DJNZ R4,LOOP0DISKEY: MOV R1,30H 。顯示緩沖區(qū)首址 MOV R2,06H MOV R3,0FEH CLR MOV 29H,28HPLAY: MOV A,@R1 MOV DPTR,TABLE MOVC A,@A+DPTR 。*********** 閃爍用 JNB ,WEN 。在調(diào)時(shí)時(shí)用作熄滅,1為開 MOV 26H,A MOV A,R1 CJNE A,29H,WEN1 JB ,LPPC1 INC 29H SETB LPPC1: CLR A SJMP WENWEN1: MOV A,26H 。***********WEN: MOV P0,A MOV P2,R3 INC R1 LCALL DELAY MOV A,R3 RL A MOV R3,A DJNZ R2,PLAY POP PSW RETDELAY: MOV R6,4D1: MOV R7,250D0: DJNZ R7,D0 DJNZ R6,D1 RETTABLE: DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,00H /*中斷T0處理*/T0_INT: MOV TL0,0B0H MOV TH0,3CH PUSH ACC INC 20H MOV A,20H CJNE A,10,EXIT JNB ,L1 SJMP L2L1: JNB ,LP0L2: JNB ,LP0 。鬧鈴檢查1響 CPL BELL DJNZ R5,LP0 。響鈴次數(shù) SETB BELL CLR LP0: MOV 20H,00H
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鄂ICP備17016276號-1