用单片机制作红外线多路遥控器,Infra-red remote controller

关键字：单片机制作红外线多路遥控器

二、

x0 equ #30
x1 equ #60
x2 equ #90
x3 equ #120
x4 equ #150
x5 equ #180
x6 equ #210
x7 equ #240
fz equ #10
sw bit p3.2
bz bit 00h
ORG 0000H
aJMP START
ORG 0013H ;int1入口
aJMP int1
ORG 001bH ;定时器T1入口
aJMP intt1
org 0030h
int1: clr ex1
MOV TH1,#3ch ;定时时间约为100ms
MOV TL1,#0b0h
setb tr1 ;启动T1计时
setb et1 ;允许T1中断
mov th0,#0
mov tl0,#0
setb tr0
reti
intt1: clr tr0
mov a,tl0
mov b,x0
acall jspd
jb bz,d01
cpl p1.0
jb sw d01
mov a,p1
orl a,#0feH
mov p1,a
ajmp d09
d01: mov b,x1
acall jspd
jb bz,d02
cpl p1.1
jb sw d02
mov a,p1
orl a,#0fdH
mov p1,a
ajmp d09
d02: mov b,x2
acall jspd
jb bz,d03
cpl p1.2
jb sw d03
mov a,p1
orl a,#0fbH
mov p1,a
ajmp d09
d03: mov b,x3
acall jspd
jb bz,d04
cpl p1.3
jb sw d04
mov a,p1
orl a,#07H
mov p1,a
ajmp d09
d04: mov b,x4
acall jspd
jb bz,d05
cpl p1.4
jb sw d05
mov a,p1
orl a,#0efH
mov p1,a
ajmp d09
d05: mov b,x5
acall jspd
jb bz,d06
cpl p1.5
jb sw d06
mov a,p1
orl a,#0dfH
mov p1,a
ajmp d09
d06: mov b,x6
acall jspd
jb bz,d07
cpl p1.6
jb sw d07
mov a,p1
orl a,#0bfH
mov p1,a
ajmp d09
d07: mov b,x7
acall jspd
jb bz,d09
cpl p1.7
jb sw d09
mov a,p1
orl a,#7fH
mov p1,a
d09: setb ex1
reti
jspd: push acc
clr bz
cjne a,b,jspd1
ajmp jspd5
jspd1: jc jspd2
subb a,r2
ajmp jspd3
jspd2: mov r1,b
mov b,a
mov a,r1
clr c
subb a,b
jspd3: cjne a,fz,jspd4
ajmp jspd5
jspd4: jc jspd5
setb bz
pop acc
ret
jspd5: clr bz
pop acc
ret
start: MOV P1,#0FFH
mov p3,#0ffh
clr it1 ;int1中断为电平触发
SETB EX1 ;允许int1中断
MOV TMOD,#15H ;设置T0为计数方式、T1为计时方式1
setb ea ;开所有中断
xh: nop
ajmp xh
end