📄 ir_yinyue.c
字号:
0X76,0XA2,0X82,0X72,0X51,0X41,0X32,
0X4C,0X42,0X32,
0X76,0X82,0X74,0X82,0X72,
0X53,0X41,0X38,0X32,0X42,
0X16,0XC2,0X72,0X52,0X41,0X51,0X12,
0XCC,0XC2,0XB2,
0X16,0XC2,0X72,0X52,0X42,0X42,
0X3C,0X32,0X32,
0X26,0X22,0X24,0X42,0X32,
0x22,0x12,0x18,0x02,0x52,
0X46,0X12,0X44,0X72,0X82,
0X5C,0X52,0X52,
0X46,0X42,0X74,0X42,0X32,
0X36,0X42,0X58,
0X82,0X72,0X62,0X52,0X46,0X32,
0X3C,0X12,0XB2,
0X36,0X52,0X42,0X32,0X11,0XC1,0XB2,
0XC6,0X12,0XC4,0X12,0XC2,
0X76,0XA2,0X82,0X72,0X51,0X41,0X32,
0X48,0X02,0X42,0X52,0X62,
0X76,0X82,0X74,0X82,0X72,
0X56,0X41,0X38,0X32,0X22,
0X16,0XC2,0X72,0X52,0X42,0X42,
0X3C,0X04,0X04,0X04,0X04,
0xFF};
//第十二首
unsigned char code song12[]={
0x34,0x32,0x34,0x34,0x24,0x34,0x32,0x32,0x24,0x38,0x44,0x58,0x48,
0x34,0x32,0x34,0x34,0x24,0x38,0x34,0x7F,0x34,0x32,0x34,0x32,
0x24,0x38,0x34,0x24,0x38,0x44,0x58,0x48,0x34,0x32,0x34,0x34,
0x24,0x38,0x34,0x7F,0x16,0x4C,0x74,
0x78,0x64,0x54,0x48,0x54,0x64,0x58,0x44,0x34,0x24,0x38,0x24,
0x14,0x12,0x21,0x11,0x78,0x68,0x3F,0x4C,0x74,
0x78,0x64,0x52,0x42,0x48,0x54,0x64,0x58,0x44,0x34,0x24,0x38,0x24,
0x24,0x38,0x44,0x58,0x48,0x3C,
0xFF};
unsigned char code* code songs[]={song1,song2,song3,song4,song5,song6,
song7,song8,song9,song10,song11,song12}; //指向12首歌
unsigned char code yin[30]={0xFF,0xFF,0xFB,0x90,0xFC,0x0C,0xFC,0x44,0xFC,0xAC,0xFD,0x09,0xFD,0x34,
0xFD,0x82,0xFD,0xC8,0xFE,0x06,0xFE,0x22,0xFA,0X15,0XFB,0x04,0xFA,0x67,0xFE,0x85}; //C调各音符频率与计数初值T的对照表
//0.9ms
void delay0_9ms(void)
{
unsigned char j,k;
for(j=18;j>0;j--)
for(k=20;k>0;k--) ;
}
//1ms
void delay1ms(void)
{
unsigned char i,j;
for(i=2;i>0;i--)
for(j=230;j>0;j--) ;
}
//4.5ms
void delay4_5ms(void)
{
unsigned char i,j;
for(i=10;i>0;i--)
for(j=225;j>0;j--) ;
}
//100ms
void delay100ms(void)
{
unsigned char i,j,k;
for(i=200;i>0;i--)
for(j=20;j>0;j--)
for(k=10;k>0;k--) ;
}
/*延时1/4拍时间即187ms*/
void delay187ms()
/*
{
unsigned char i,j,k;
for(i=200;i>0;i--)
for(j=20;j>0;j--)
for(k=15;k>0;k--) ;
}
*/
{
unsigned char i,j;
for(i=255;i>0;i--)
{
for(j=120;j>0;j--)
{
if(IR_OK==1) {break;}
}
}
}
void t0(void) interrupt 0 using 2 //外部中断0的函数
{
unsigned char i,j,k;
EA=0; //暂时关闭CPU的所有中断请求
for(k=0;k<10;k++) //重复10次，目的是检测在9毫秒内如果出现高电平就退出解码程序
{ //aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
delay0_9ms(); //延时0.9毫秒
if (IR==1) {k=10;break;} //延时0.9毫秒后判断P3.2脚是否出现高电平如果有就退出解码程序
else if(k==9) //重复10次?
{ //bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
while(IR==0); //等待高电平避开9毫秒低电平引导脉冲
delay4_5ms(); //延时4.5毫秒避开4.5毫秒的结果码
/********************************************
//26位的用户码,前13位数据码，后13位数据反码
*********************************************/
for(j=1;j<=26;j++)//每组数据为26位
{
while(IR==0); //
delay0_9ms();
if(IR==1)
{
delay1ms();
dm=dm|0x2000000; //因为是26位，一个"1",后面25个"0",转化二进制即为"1000000"
if(j<26) dm=dm>>1; //数据"1",右移一个"1",一共25次
}
else if(j<26) dm=dm>>1; //数据"0"，一共25次
}
bb=dm;
dm=0;
/***************************************************
//16位的用户码,前8位数据码，后8位数据反码
****************************************************/
for(i=0;i<2;i++)
{
for(j=1;j<=8;j++)//每组数据为26位
{
while(IR==0); //
delay0_9ms();
if(IR==1)
{
delay1ms();
dm=dm|0x80;
if(j<8) dm=dm>>1; //数据"1"，右移一个"1",一共7次
}
else if(j<8) dm=dm>>1; //数据"0"，一共7次
}
aa[i]=dm;
dm=0;
}
/***************************************************
//解码成功的话，蜂鸣器叫一声
****************************************************/
if(aa[0]==~aa[1]) //验证成功
{
IR_OK=1;
sound=0;
delay100ms();
sound=1;
}
} //bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
} //aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
EA=1;
}
/*每个音符的发声*/
void timer0() interrupt 1 using 1 //定时器T0
{
TH0=yin[2*l];
TL0=yin[2*l+1];
SPK = !SPK;
}
void sing_song()
{
unsigned int data j; //取码指针
unsigned char data i; //用于循环
unsigned char data k; //几个1/4拍
IR_OK=0; //不能少掉！！！！
song=songs[song_number];
j=0;
while(*(song+j)!=0xFF) //是否取到结束码
{
if(IR_OK==1){break;} //这一句很重要的！！！！！
k=*(song+j)&0x0F; //后4位为多少个1/4拍
l=*(song+j)>>4; //song(song+j)[]中所放的每个字节
//前4位乘2表示为音符频率在数组yin[]中的位置
TH0=yin[2*l]; //置初值
TL0=yin[2*l+1];
TR0=1; //起动定时器0
if ((yin[2*l]==0xff)&&(yin[2*l+1]==0xff)) //如果取到的都是休止符,则不输出音频
{
TR0=0;SPK=1;
}
for(i=k;i>0;--i) //节拍K为多少就执行多少个1/4拍
{ delay187ms(); }
TR0=0;
j++;
} //回22222
} //回xxxxxx
void main()
{
EA=1; //总中断
TMOD=0x01; //timer0工作在方式1
IT0=1; //外部中断0触发方式控制位，下降沿触发
ET0=1; //允许定时器T0中断
EX0=1; //外部中断0（INT0）中断允许位
IP=0x01; //定义外部中断0优先于定时器中断的优先级
dm=0;
P2=0xc0;
P1=0x00;
while(1)
{
if(IR_OK==1)
{ if(aa[0]==0x11)
{song_number=0;P1=0x00;P2=0xf9;sing_song();} //显示并演奏第1首
else if(aa[0]==0x12)
{song_number=1;P1=0x00;P2=0xa4;sing_song();} //显示并演奏第2首
else if(aa[0]==0x13)
{song_number=2;P1=0x00;P2=0xb0;sing_song();} //显示并演奏第3首
else if(aa[0]==0x14)
{song_number=3;P1=0x00;P2=0x99;sing_song();} //显示并演奏第4首
else if(aa[0]==0x15)
{song_number=4;P1=0x00;P2=0x92;sing_song();} //显示并演奏第5首
else if(aa[0]==0x16)
{song_number=5;P1=0x00;P2=0x82;sing_song();} //显示并演奏第6首
else if(aa[0]==0x17)
{song_number=6;P1=0x00;P2=0xf8;sing_song();} //显示并演奏第7首
else if(aa[0]==0x18)
{song_number=7;P1=0x00;P2=0x80;sing_song();} //显示并演奏第8首
else if(aa[0]==0x19)
{song_number=8;P1=0x00;P2=0x90;sing_song();} //显示并演奏第9首
else if(aa[0]==0x10)
{song_number=9;P1=0x00;P2=0x88;sing_song();} //显示并演奏第10首
else if(aa[0]==0x1a)
{song_number=10;P1=0x00;P2=0x83;sing_song();} //显示并演奏第11首
else if(aa[0]==0x1b)
{song_number=11;P1=0x00;P2=0xc6;sing_song();} //显示并演奏第12首
else{sound=0;delay100ms();sound=1;delay100ms();
sound=0;delay100ms();sound=1;P1=0x00;P2=0xb6;} //蜂鸣器叫，表明没有歌啦
}
}
}
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