发布时间 : 星期六 文章智能光电定时器课程设计更新完毕开始阅读
NOP
MOV A, P1 ;读入P1 CPL A ;取反 ANL A,#0FH ;高四位 MOV 40H,A ;小时数单元 MOV 4CH,A ;小时数放入 MOV 4AH,#10H
MOV 4BH,#0 ;
LCALL MULTI ;转换成秒数 LOOP: END1: MOV 4DH,R3
MOV 4EH,R4
CPL P3.7 ;选择分 LCALL DELAY20MS MOV A,P1
CPL A ;取反 ANL A,#0FH
MOV 41H,A ;分钟数放入缓冲单单元 MOV 4CH,A ;分钟数放入 MOV 4AH,#58H
MOV 4BH,#0 ;
LCALL MULTI ;转换成秒数 MOV A,4DH ADD A,R3 MOV 4DH,A MOV A,4EH
ADDC A,R4 ;此次结果与
MOV 4EH,A ;送入计数单元4DH为高 SETB TR0 ;启动定时器 AJMP LOOP ;进入循环 ORG 00C0H MOV A,40H MOV 4CH,A MOV 4AH,#10H MOV 4BH,#0EH LCALL MULTI MOV 4DH,R3 MOV 4EH,R4 MOV A,42H MOV 4CH,A MOV 4AH,#58H MOV 4BH,#02H LCALL MULTI MOV A,4DH ADD A,R3
MOV 4DH,A MOV A,4EH ADDC A,R4 MOV 4EH,A MOV A,41H MOV 4CH,A MOV 4AH,#3CH MOV 4BH,#00H LCALL MULTI MOV A,4DH ADD A,R3 MOV 4DH,A MOV A,4EH ADDC A,R4
MOV 4EH,A ;
NOP
RET ;程序进 ;外部中断0中断响应程序
ORG 0110H INT0: PUSH ACC PUSH PSW
LCALL DELAY20MS
JB P3.2,EN ;是误脉冲 CLR 20H.0 ;已经处于 CLR EA ;开中断 LCALL TIP LCALL END1 NOP NOP NOP
ENDINT0: POP PSW POP ACC RETI
LED: LJMP INDICATE ;-------------------------------------------------------------- ;定时器0中断响应子程序
ORG 0140H T0: PUSH PSW PUSH ACC
JB 01H,THAND JB 00H,TPHOTO JB 07H,LED MOV TH0,#0D8H MOV TL0,#0F0H
SETB TR0 INC 47H MOV A,47H
CJNE A,#25,NCHANGE2 CPL P1.7
MOV 47H,#00H NCHANGE2: INC 46H
MOV A,46H
CJNE A,#50,NOHANDLE MOV 46H,#00H MOV A,4DH SUBB A,#01H MOV 4DH,A ORL A,4EH SUBB A,#00H MOV 4EH,A ORL A,4DH NOP NOP NOP
JNZ NOHANDLE SETB 07H LCALL MUSIC
LJMP NOHANDLE TPHOTO: LCALL DELAY20MS INC 42H
WAITTO: JB P3.4, WAITTO LCALL DELAY20MS JB P3.4, WAITTO SETB EA LCALL TIP
MOV TH0,#0FFH MOV TL0,#0FFH LJMP NOHANDLE
THAND: JB 20H.7,I MOV TH0,#0 MOV TL0,#0DFH SETB TR0 INC 47H MOV A,47H
CJNE A,#25,N1 CPL P1.7
MOV 47H,#00H NCHANGE1: INC 46H
判断定时 定时器T0 ;秒针指示 ; ;
MOV A,46H
CJNE A, #50,NOHANDLE MOV 46H,#00H
MOV A,4DH ;计数低位 SUBB A,#01H MOV 4DH,A MOV A,4EH SUBB A, #00H MOV 4EH,A ORL A,4DH NOP NOP NOP
JNZ NOHAN ; SETB 20H.7
LCALL MUSIC ;给出声音 NOHANDLE: POP ACC POP PSW RETI
INDICATE: CPL P1.7 ;指示灯快 INC 43H MOV A,43H
CJNE A,#10,NE ;到0.2秒 CPL P1.7 ;指示灯状 MOV 43H,#00H NOP NOP NOP
LJMP NOHANDLE ;-------------------------------------------------------------- ;外部中断1中断响应程序
ORG 0210H INT1: PUSH PSW PUSH ACC
LCALL DELAY ;软件去抖 JB P3.3,ENDINT1
INC 40H WAITINT1: JNB P3.3,WAITINT1
LCALL DELAY20MS
JNB P3.3,WA ;等待操作
LCALL TIP NOP NOP NOP
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