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mini_second equ 30h ;ÉèÖÃ0.05Ãë¡¢Ãë¡¢·Ö¡¢Ê±µÄµØÖ·
second equ 31h
minute equ 32h
clock equ 33h
k1 equ p3.2 ;ÉèÖð´¼üµØÖ·£¬ÎªÍⲿÖжϿÚint0ºÍint1
k2 equ p3.3
org 0000h
ljmp start
org 000bh
ljmp t0_x ;ʹÓÃÖжϼÆÊ±
org 0050h
start: mov mini_second,#00h ;ÇåÁã
mov second,#00h
mov minute,#00h
mov clock,#00h
mov tmod,#01h ;Öù¤×÷·½Ê½1£¬¿ª¶¨Ê±Æ÷
mov th0,#3ch
mov tl0,#0b0h
setb ea
setb et0
setb tr0
start1: lcall show_led ;Ö÷³ÌÐòÌø×ª³ÌÐòÏÔʾ
lcall key_d ;ÖÃÊý³ÌÐò
ljmp start1 ;һֱѻ·ÏÔʾ
t0_x:
push acc ;±£»¤ÏÖ³¡
push psw
mov th0,#3ch ;ÖóõÖµ£¬Õâ¸ö²»ÊǺÜ׼ȷ£¬
mov tl0,#0b4h ;¹À¼ÆÒ»·ÖÖÓÂý¸ö2~3Ãë
inc mini_second
mov a,mini_second
cjne a,#20,ret0 ;20´ÎΪ1Ã룬ûÓÐ20´Î¾ùÌø³öÖжÏÖØÐÂÌø
mov mini_second, #00h
mov a,second
add a,#01h
da a
mov second,a
cjne a,#60h,ret0 ;1Ãëºó³öÑ»·£¬Ã¿ÃëºóÃëÇåÁã£¬Ìøµ½·Ö¼ÆÊ±¼Ó1
mov second,#00h
mov a,minute
add a,#01h ;·ÖͬÃë
da a
mov minute,a
cjne a,#60h,ret0
mov minute,#00h
mov a,clock
add a,#01h
da a
mov clock,a
cjne a,#24h,ret0
mov clock,#00h
ret0: pop psw ;½áÊø±£»¤£¬Ìø³ö
pop acc
reti
nop
nop
nop
;======================================ÏÔʾ×Ó³ÌÐò
show_led:
mov a,second ;¸öλÃëÏÔʾ
anl a,#0fh
mov 40h,a
clr p1.5 ;ƬѡÊýÂë¹Ü
clr p1.6
setb p1.7
mov a,40h
lcall led_x
lcall delay
mov a,second ;ʮλÃëÏÔʾ
anl a,#0f0h
swap a
mov 41h,a
setb p1.5
clr p1.6
setb p1.7
mov a,41h
lcall led_x
lcall delay
mov a,minute ;¸öλ·ÖÏÔʾ
anl a,#0fh
mov 42h,a
setb p1.5
setb p1.6
setb p1.7
mov a,42h
lcall led_x
lcall delay
mov a,minute ;ʮλ·ÖÏÔʾ
anl a,#0f0h
swap a
mov 43h,a
clr p1.5
clr p1.6
clr p1.7
mov a,43h
lcall led_x
lcall delay
mov a,clock ;¸öλʱÏÔʾ
anl a,#0fh
mov 44h,a
clr p1.5
setb p1.6
clr p1.7
mov a,44h
lcall led_x
lcall delay
mov a,clock ;ʮλʱÏÔʾ
anl a,#0f0h
swap a
mov 45h,a
setb p1.5
setb p1.6
clr p1.7
mov a,45h
lcall led_x
lcall delay
ret
led_x: mov dptr,#led_data
movc a,@a+dptr
mov p0,a
ret
;====================================ÑÓ³Ù×Ó³ÌÐò
delay: mov r7,#10
de1: mov r6,#100 ;ÑÓʱ1ms¶àÒ»µã£¬ÒòΪ¾§ÕñΪ11.0592mhz
djnz r6,$
djnz r7,de1
ret
;===================================ÊýÂë¹ÜµÄ¶ÎÑ¡Âë
led_data: db 0c0h,0f9h,0a4h,0b0h,099h,92h,82h,0f8h,80h,90h
;=====================================ÖÃÊý×Ó³ÌÐò
key_d: jnb k1,key1
jnb k2,key2
ret
key1: mov a,minute ;²éѯ·½Ê½ ————> ·ÖλÖÃÊý
clr c ;ÇåÁã½øÎ»£¬·ÀÖ¹¸ÉÈÅdaºÍcjneÖ¸ÁîµÄ²Ù×÷
inc a ;ÀÛ¼ÓÆ÷×Ô¼ÓÒ» £¬´ËΪ¼Ó·¨ÖÃÊý
da a ;Ê®½øÖÆ´¦Àí
cjne a, #60h, k_01 ;ÅжÏÊÇ·ñΪ60£¬Îª60ÇåÁã£¬Ìø³ö
mov a,#00h
k_01: mov minute,a
jnb k1,$
ret
key2: mov a,clock ;ʱλ ÖÃÊýͬÉÏ
clr c
inc a
da a
cjne a, #24h,k_11
mov a,#00h
k_11: mov clock,a
jnb k2,$
ret
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