單片機(jī)HEX文件下載：04032801_1_8COM.rar

C51源碼：

/*----------------------------------------

8路紅外遙控開(kāi)關(guān)控制器
(SAA3010T電視遙控器)

Copyright 2004/3/27
http://www.cdle.net
http://bbs.cdle.net

All rights reserved.

明浩 E-mail: pnzwzw@163.com
pnzwzw@cdle.net

只用八路時(shí)可以用AT89C2051代替AT89C51
一體化接收頭輸出端拉P3.2(int0)，P1為控制輸出端。
可以擴(kuò)展到32路或更多
輸出為低電平有效
----------------------------------------*/

#include AT89x51.h>

static unsigned char data IRCode[3],IRCON,IRCON2;
static unsigned char data DT;

void main(void)
{
unsigned int de;

TMOD =0x01; //定時(shí)器0方式1
EA =1; //允許CPU中斷
IT0 =1; //INT0下降沿有效
EX0 =1; //開(kāi)INT0中斷;
do
{
for (de=0; de10000; de++)
P3_6 =1;
for (de=0; de10000; de++)
P3_6 =0;
if (DT)
{
for (de=0; de30000; de++) //這里起到按鍵值正確后會(huì)有一個(gè)延時(shí)，防止重復(fù)按鍵
P3_6 =1;
for (de=0; de30000; de++)
P3_6 =0;
DT =0;
}
EX0 =1;
}
while(1);
}

//定時(shí)器0中斷處理
void timeint(void) interrupt 1 using 2
{
TH0=0xFD;
TL0=0x1E; //設(shè)定時(shí)值為800us

if (IRCON3)
{
if (IRCON28) //每中斷一次讀一次遙控接收頭的狀態(tài),每二次為遙控編碼中的一個(gè)位
{
IRCON2++;
IRCode[IRCON]=IRCode[IRCON]1; //每讀一次放入變量中的二進(jìn)制的一個(gè)位，每次左移一位
IRCode[IRCON]=IRCode[IRCON] | P3_2; //每八次填滿一個(gè)字節(jié)，一個(gè)字節(jié)存放遙控編碼4個(gè)位
}
else
{
IRCON++; //填滿一個(gè)字節(jié)，指向下一個(gè)變量
IRCON2=0; //計(jì)數(shù)清零
}
}
else
{
TR0 =0; //關(guān)閉定時(shí)器
ET0 =0; //定時(shí)器0中斷關(guān)閉
if ((IRCode[1]!=0xFF) (IRCode[2]!=0xFF))
{
if (IRCode[1] ==0x55)
{
switch (IRCode[2])
{
case 0xAB: //1-8鍵控制
P1_0 =~P1_0;
DT =1;
break;
case 0xAC:
P1_1 =~P1_1;
DT =1;
break;
case 0xAD:
P1_2 =~P1_2;
DT =1;
break;
case 0xB2:
P1_3 =~P1_3;
DT =1;
break;
case 0xB3:
P1_4 =~P1_4;
DT =1;
break;
case 0xB4:
P1_5 =~P1_5;
DT =1;
break;
case 0xB5:
P1_6 =~P1_6;
DT =1;
break;
case 0xCA:
P1_7 =~P1_7;
DT =1;
break;
case 0xD2: //按關(guān)閉電源鍵，關(guān)閉所有繼電器
P1 =0xFF;
DT =1;
break;
}
}
}
}
}

//INT0中斷
void INT0Fun(void) interrupt 0 using 2
{
EX0 =0; //外部中斷0關(guān)閉
ET0 =1; //定時(shí)器0中斷打開(kāi)
TH0=0xFD;
TL0=0x1E; //設(shè)定時(shí)值為800us

for (IRCON=0; IRCON3; IRCON++)
IRCode[IRCON] =0;
IRCON =0;
IRCON2 =0; //計(jì)數(shù)清零

TR0 =1;//開(kāi)始計(jì)數(shù)