家用电器定时控制器.doc

家用电器定时控制器（可设置分、秒）设计、实习要求：设计一个家用电器的定时控制程序，要求显示定时时间，并可用键盘对定时时间进行设定。程序功能：（1）一开机数码管显示“good”，使某只发光二极管亮；（2）用键可使定时控制器清零，允许对定时时间设定；（3）用键可对分设定；用键可对秒设定；（4）按“运行键”开始定时，并且运行过程中动态显示时间状态，时间到使八只发光二极管间隔亮。程序功能附加要求：在按“设定”键之前按任何键都无效的。在进入倒计时状态后， 仍可以对定时时间再次调节，即重新设定。运行结束即时间到使八只发光二极管间隔亮，数码管显示“help”。（型号：89C51）源程序： TICK EQU 10000 DBUF0 EQU 30H TEMP EQU 40H DIN BIT P0.4 CLK BIT P0.5 T100us EQU 156 C100us EQU 05H ORG 0000H LJMP START ORG 000BH LJMP T0INT START:CLR P2.0 CLR P0.0 MOV 30H,#10H MOV 31H,#10H MOV 32H,#09H MOV 33H,#0AH MOV 34H,#0AH MOV 35H,#0DH MOV 36H,#10H MOV 37H,#10H ACALL DISPSHEDING:MOV P1,#0FFH MOV A,P1JNB ACC.0,KEYSJMP SHEDINGKEY:MOV P1,#0FFH MOV A,P1JNB ACC.0,CLEAR0JNB ACC.1,BEGIN JNB ACC.4,MH JNB ACC.5,ML JNB ACC.6,SH JNB ACC.7,SL SJMP KEY CLEAR0:ACALL CLEAR SJMP KEY MH:MOV A,33H INC A MOV 33H,A CJNE A,#06H,JUMP MOV 33H,#00H LCALL DISPSJMP KEY ML:MOV A,34H INC A MOV 34H,A CJNE A,#0AH,JUMP MOV 34H,#00H LCALL DISPSJMP KEY SH:MOV A,36H INC A MOV 36H,A CJNE A,#06H,JUMP MOV 36H,#00H LCALL DISPSJMP KEY SL:MOV A,37H INC A MOV 37H,A CJNE A,#0AH,JUMP MOV 37H,#00H LCALL DISPSJMP KEY JUMP:LCALL DELAY ACALL DISP LJMP KEY JUMP1:LJMP CLEAR0 JUMP2:LJMP KEY JUMP3:CLR TR0 SJMP STOP STOP:SJMP KEY BEGIN:MOV TMOD, #02H MOV TH0, #T100us MOV TL0, #T100us MOV IE, #10000010B SETB TR0 MOV C100us, #HIGH(TICK) MOV C100us+1, #LOW(TICK) WAIT:JNB P1.2,JUMP3 MOV A,33H JNZ WAIT MOV A,34H JNZ WAIT MOV A,36H JNZ WAIT MOV A,37H JNZ WAIT CLR TR0 LJMP HELP SJMP WAIT T0INT:PUSH PSW MOV A, C100us+1 JNZ GOON DEC C100us GOON:DEC C100us+1 MOV A, C100us ORL A, C100us+1 JNZ EXIT MOV C100us, #HIGH(TICK) MOV C100us+1, #LOW(TICK) TIMING:SETB P0.0 ACALL DELAY MOV A,37H DEC A MOV 37H,A CJNE A,#0FFH,DISP1 MOV 37H,#09H MOV A,36H DEC A MOV 36H,A CJNE A,#0FFH,DISP1 MOV 36H,#05H MOV A,34H DEC A MOV 34H,A CJNE A,#0FFH,DISP1 MOV 34H,#09H MOV A,33H DEC A MOV 33H,A CJNE A,#0FFH,DISP1 MOV 33H,#05H MOV A,31H DEC A MOV 31H,A CJNE A,#0FFH,DISP1 MOV 31H,#09H MOV A,30H DEC A MOV 30H,A CJNE A,#0FFH,DISP1 MOV 30H,#05H DISP1:ACALL DISP EXIT:POP PSW RETI HELP:MOV 30H,#10H MOV 31H,#10H MOV 32H,#0BH MOV 33H,#0CH MOV 34H,#0FH MOV 35H,#0EH MOV 36H,#10H MOV 37H,#10H ACALL DISP CLR P0.0 FLASH:MOV A, #0FEH MOV R5, #8 OUTPUT:JNB P1.3,RESET MOV P2, A RL A LCALL DELAY DJNZ R5, OUTPUT SJMP FLASH RESET:LJMP KEY DELAY:MOV R6, #0 MOV R7, #0DELAYLOOP:DJNZ R7, DELAYLOOP DJNZ R6, DELAYLOOP RET DISP:MOV R0, #DBUF0 MOV R1, #TEMP MOV R2, #8 DP10:MOV DPTR,#SEGTAB MOV A, R0 MOVC A, A+DPTR MOV R1, A INC R0 INC R1 DJNZ R2, DP10 MOV R0, #TEMP MOV R1, #8 DP12:MOV R2, #8 MOV A, R0 DP13:RLC A MOV DIN, C CLR CLK SETB CLK DJNZ R2, DP13 INC R0 DJNZ R1, DP12 RETSEGTAB: DB 3FH,06H,5BH,4FH,66H,6DH DB 7DH,07H,7FH,6FH,5CH,76H DB 79H,5EH,73H,38H,00H,40H CLEAR:CLR A MOV P1,#0FFH MOV A,P1JNB ACC.0,C