……

;**************************; 以下為主程序 (檢測各鍵是否按下)
;***************************MainLoop:
jb AlarmSetKey,CheckMinuteKey
call Delay
jb AlarmSetKey,CheckMinuteKey
setb ClockMode
call AlarmSet
CheckMinuteKey:
jb MinuteKey,CheckHourKey
mov a,Minute
add a,#1
mov Minute,a
cjne a,#3ch,NotOver1
mov Minute,#0
NotOver1:
jnb MinuteKey,$
CheckHourKey:
jb HourKey,CheckAlarmA
mov a,Hour
add a,#1
mov Hour,a
cjne a,#18h,NotOver2
mov Hour,#0
NotOver2:
jnb HourKey,$
CheckAlarmA:
jnb AlarmTimeOnA,CheckAlarmP
call StartPc; call AlarmProcess
ajmp ToReturn
CheckAlarmP:
jnb AlarmTimeOnP,ToReturn
call ShutPc
ToReturn:
ajmp MainLoop
;**************************; 定時器Timer0中斷服務程序（此程序每8ms執(zhí)行一次）
;***************************
TimeInt:
mov th0,#0E0h
mov tl0,#0bfh
push acc
push psw
SETB rs0
clr rs1
d jnz OneSecondCounter,NotoneSecond
mov OneSecondCounter,#125
call Clock
call ConvertoBuffer
NotoneSecond:
call ScanDisplay
pop psw
pop acc
reti
; ***************************
; 掃描顯示子程序
;***************************
ScanDisplay:
mov r1,#DisplayBuffer
mov R4,#11111011b
play:
mov a,R4
mov P2,A
mov A,@R1
mov DPTR,#TAB
movc A,@A+DPTR
mov P0,A
lcall Delay
inc R1
mov A,R4
jnb ACC.7,ENDOUT
rl A
mov R4,A
ajmp PLAY
endout: SETB P2.7
mov P0,#0FFH ret
TAB:DB 0C0H,0F9H,0A4H,0B0H,
99H,92H,82H,0F8H,80H,90H,7FH,
0B7H,0FFH
;***************************
; 時鐘內(nèi)容加1秒的子程序
;***************************
Clock:
mov a,Second
add a,#1
mov Second,a
cjne a,#3cH,NotOverFlow
mov Second,#0
mov a,Minute
add a,#1
mov Minute,a
cjne a,#3cH,NotOverFlow
mov Minute,#0
mov a,Hour
add a,#1
mov Hour,a
cjne a,#18H,NotOverFlow
mov Hour,#0
NotOverFlow:
mov a,Second
jnz NotAlarm
jnb AlarmAOnOff,PAlarm
mov a,Minute
cjne a,AlarmAMinute,PAlarm
mov a,Hour
cjne a,AlarmPHour,PAlarm
ajmp alarming
PAlarm:
jnb AlarmPOnOff,NotAlarm
mov a,Minute
cjne a,AlarmPMinute,NotAlarm
mov a,Hour
cjne a,AlarmPHour,NotAlarm
ajmp Alarming1
Alarming:
setb AlarmTimeOnA
ajmp NotAlarm
Alarming1:
setb AlarmTimeOnP;
NotAlarm:
ret
;***************************
; 將時鐘內(nèi)容或鬧時設置值轉(zhuǎn)換到顯示緩沖區(qū)子程序
;***************************
ConvertoBuffer:
mov r1,#DisplayBuffer
jb ClockMode,DispAlarmSet
mov a,Second
mov DispSecond,a
mov a,Minute
mov Dispminute,a
mov a,Hour
mov DispHour,a
ajmp Convert
DispAlarmSet:
jb AlarmAOnOff,AlarmAOn
mov DispSecond,#00h
jb AlarmPOnOff,AlarmPOn
mov DispSecond,#00h
ajmp Convert
AlarmAOn:
mov DispSecond,#11
NextA:
mov a,AlarmAMinute
mov Dispminute,a
mov a,AlarmAHour
mov DispHour,a
ajmp Convert
AlarmPOn:
mov DispSecond,#11
NextP:
mov a,AlarmPMinute
mov Dispminute,a
mov a,AlarmPHour
mov DispHour,a
Convert:
mov a,DispSecond
mov b,#10
div ab
mov @r1,b
inc r1
mov @r1,a
inc r1
mov a,DispMinute
mov b,#10
div ab
mov @r1,b
inc r1
mov @r1,a
inc r1
mov a,DispHour
mov b,#10
div ab
mov @r1,b
inc r1
mov @r1,a
ret

結(jié)束語

該智能時鐘控制系統(tǒng)，以AT89C51微處理器為核心，具有集成度高、性能穩(wěn)定、抗干擾能力強、性價比高的優(yōu)點。經(jīng)軟件仿真和實際功能驗證，證明設計可靠、設計方案可行，在實際應用中有較大的實 用價值。