单片机程序 红外遥控模拟.rar

#include <AT89X51.h> static bit OP; //红外发射管的亮灭 static unsigned int count; //延时计数器 static unsigned int endcount; //终止延时计数 static unsigned char Flag; //红外发送标志 char iraddr1; //十六位地址的第一个字节 char iraddr2; //十六位地址的第二个字节 void SendIRdata(char p_irdata); void delay(); char getkey() { P1=0xfe;P3_6=P3_7=1;P3_3=1; if(!P1_4)return 1; //ON if(!P1_5)return 2; //7 if(!P1_6)return 3; //8 if(!P1_7)return 4; //9 if(!P3_6)return 5; //X if(!P3_7)return 6; //÷ P1=0xfd; if(!P1_4)return 11; //+- if(!P1_5)return 12; //4 if(!P1_6)return 13; //5 if(!P1_7)return 14; //6 if(!P3_6)return 15; //- if(!P3_7)return 16; //MRC P1=0xfb; if(!P1_4)return 21; //% if(!P1_5)return 22; //1 if(!P1_6)return 23; //2 if(!P1_7)return 24; //3 if(!P3_6)return 25; //+ if(!P3_7)return 26; //M- P1=0xf7; if(!P1_4)return 31; //□ if(!P1_5)return 32; //0 if(!P1_6)return 33; //. if(!P1_7)return 34; //= if(!P3_6)return 35; //+ if(!P3_7)return 36; //M+ P1=0xfF;P3_3=0; if(!P1_4)return 41; // if(!P1_5)return 42; // if(!P1_6)return 43; // if(!P1_7)return 44; // if(!P3_6)return 45; // if(!P3_7)return 46; // return 0; } void main(void) { char key; count = 0; Flag = 0; OP = 0; P3_4 = 1; EA = 1; //允许CPU中断 TMOD = 0x11; //设定时器0和1为16位模式1 ET0 = 1; //定时器0中断允许 P1=0xff; TH0 = 0xFF; TL0 = 0xE6; //设定时值0为38K 也就是每隔26us中断一次 TR0 = 1;//开始计数 iraddr1=0xff; iraddr2=0xff; do{ key=getkey(); if(key==1)SendIRdata(0x12);//set if(key==11)SendIRdata(0x0b);//exit if(key==25||key==35)SendIRdata(0x1a);//+ if(key==15)SendIRdata(0x1e);//- if(key==6)SendIRdata(0x0e);//↑ ÷ if(key==16)SendIRdata(0x1d);//↓ MRC if(key==26)SendIRdata(0x1f);//← M- if(key==36)SendIRdata(0x1b);//→ M+ if(key==32)SendIRdata(0x00);//0 if(key==22)SendIRdata(0x01);//1 if(key==23)SendIRdata(0x02);//2 if(key==24)SendIRdata(0x03);//3 if(key==12)SendIRdata(0x04);//4 if(key==13)SendIRdata(0x05);//5 if(key==14)SendIRdata(0x06);//6 if(key==2)SendIRdata(0x07);//7 if(key==3)SendIRdata(0x08);//8 if(key==4)SendIRdata(0x09);//9 if(key==21)SendIRdata(0x2A);//% if(key==5)SendIRdata(0x2B);//X if(key==33)SendIRdata(0x2C);//. if(key==34)SendIRdata(0x2D);//= if(key==31)SendIRdata(0x2E);//□ if(key==41)SendIRdata(0x2F);// if(key==42)SendIRdata(0x30);// if(key==43)SendIRdata(0x31);// if(key==44)SendIRdata(0x32);// if(key==45)SendIRdata(0x33);// if(key==46)SendIRdata(0x34);// }while(1); } //定时器0中断处理 void timeint(void) interrupt 1 { TH0=0xFF; TL0=0xE6; //设定时值为38K 也就是每隔26us中断一次 count++; } void SendIRdata(char p_irdata) { int i; char irdata=p_irdata; //发送9ms的起始码 endcount=223; Flag=1; count=0; P3_4=0; do{}while(count<endcount); //发送4.5ms的结果码 endcount=117; Flag=0; count=0; P3_4=1; do{}while(count<endcount); //发送十六位地址的前八位 irdata=iraddr1; for(i=0;i<8;i++) { //先发送0.56ms的38KHZ红外波（即编码中0.56ms的低电平） endcount=10; Flag=1; count=0; P3_4=0; do{}while(count<endcount); //停止发送红外信号（即编码中的高电平） if(irdata-(irdata/2)*2) //判断二进制数个位为1还是0 { endcount=15; //1为宽的高电平 } else { endcount=41; //0为窄的高电平 } Flag=0; count=0; P3_4=1; do{}while(count<endcount); irdata=irdata>>1; } //发送十六位地址的后八位 irdata=iraddr2; for(i=0;i<8;i++) { endcount=10; Flag=1; count=0; P3_4=0; do{}while(count<endcount); if(irdata-(irdata/2)*2) { endcount=15; } else { endcount=41; } Flag=0; count=0; P3_4=1; do{}while(count<endcount); irdata=irdata>>1; } //发送八位数据 irdata=~p_irdata; for(i=0;i<8;i++) { endcount=10; Flag=1; count=0; P3_4=0; do{}while(count<endcount); if(irdata-(irdata/2)*2) { endcount=15; } else { endcount=41; } Flag=0; count=0; P3_4=1; do{}while(count<endcount); irdata=irdata>>1; } //发送八位数据的反码 irdata=p_irdata; for(i=0;i<8;i++) { endcount=10; Flag=1; count=0; P3_4=0; do{}while(count<endcount); if(irdata-(irdata/2)*2) { endcount=15; } else { endcount=41; } Flag=0; count=0; P3_4=1; do{}while(count<endcount); irdata=irdata>>1; } endcount=10; Flag=1; count=0; P3_4=0; do{}while(count<endcount); P3_4=1; Flag=0; } void delay() { int i,j; for(i=0;i<400;i++) { for(j=0;j<100;j++) { } } }