#include <reg52.h>
unsigned char Count;
sbit _Speak =P3^7 ; //讯响器控制脚
unsigned char code SONG[] ={ //祝你平安
0x26,0x20,0x20,0x20,0x20,0x20,0x26,0x10,0x20,0x10,0x20,0x80,0x26,0x20,0x30,0x20,
0x30,0x20,0x39,0x10,0x30,0x10,0x30,0x80,0x26,0x20,0x20,0x20,0x20,0x20,0x1c,0x20,
0x20,0x80,0x2b,0x20,0x26,0x20,0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x80,0x26,0x20,
0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x60,0x40,0x10,0x39,0x10,0x26,0x20,
0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x80,0x26,0x20,0x2b,0x10,0x2b,0x10,
0x2b,0x20,0x30,0x10,0x39,0x10,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x20,
0x20,0x10,0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x18,0x20,0x18,0x20,0x26,0x20,
0x20,0x20,0x20,0x40,0x26,0x20,0x2b,0x20,0x30,0x20,0x30,0x20,0x1c,0x20,0x20,0x20,
0x20,0x80,0x1c,0x20,0x1c,0x20,0x1c,0x20,0x30,0x20,0x30,0x60,0x39,0x10,0x30,0x10,
0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x10,0x26,0x10,0x26,0x10,0x2b,0x10,0x2b,0x80,
0x18,0x20,0x18,0x20,0x26,0x20,0x20,0x20,0x20,0x60,0x26,0x10,0x2b,0x20,0x30,0x20,
0x30,0x20,0x1c,0x20,0x20,0x20,0x20,0x80,0x26,0x20,0x30,0x10,0x30,0x10,0x30,0x20,
0x39,0x20,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x10,0x40,0x10,0x20,0x10,
0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x00,
//路边的野华不要采
0x30,0x1C,0x10,0x20,0x40,0x1C,0x10,0x18,0x10,0x20,0x10,0x1C,0x10,0x18,0x40,0x1C,
0x20,0x20,0x20,0x1C,0x20,0x18,0x20,0x20,0x80,0xFF,0x20,0x30,0x1C,0x10,0x18,0x20,
0x15,0x20,0x1C,0x20,0x20,0x20,0x26,0x40,0x20,0x20,0x2B,0x20,0x26,0x20,0x20,0x20,
0x30,0x80,0xFF,0x20,0x20,0x1C,0x10,0x18,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,
0x20,0x2B,0x40,0x20,0x20,0x1C,0x10,0x18,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,
0x20,0x2B,0x40,0x20,0x30,0x1C,0x10,0x18,0x20,0x15,0x20,0x1C,0x20,0x20,0x20,0x26,
0x40,0x20,0x20,0x2B,0x20,0x26,0x20,0x20,0x20,0x30,0x80,0x20,0x30,0x1C,0x10,0x20,
0x10,0x1C,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,0x20,0x2B,0x40,0x20,0x15,0x1F,
0x05,0x20,0x10,0x1C,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,0x20,0x2B,0x40,0x20,
0x30,0x1C,0x10,0x18,0x20,0x15,0x20,0x1C,0x20,0x20,0x20,0x26,0x40,0x20,0x20,0x2B,
0x20,0x26,0x20,0x20,0x20,0x30,0x30,0x20,0x30,0x1C,0x10,0x18,0x40,0x1C,0x20,0x20,
0x20,0x26,0x40,0x13,0x60,0x18,0x20,0x15,0x40,0x13,0x40,0x18,0x80,0x00,
};
/*******************************************************************************
** 函数：Time0_Init()
** 描述：定时器0赋初值,晶振为12M,定时10ms
*******************************************************************************/
void Time0_Init()
{
TMOD = 0x01; //定义为16位计数器
IE = 0x82; //0x82 转化为二进制时为1000 0010 ,意思为开总中断,开定时器0中断.
TH0 = 0xD8; //高四位赋初值 也可写为TH0=(65536-10000)/256
TL0 = 0xEF; // 低四位赋初值 也可写为TL0=(65536-10000)%256
}
/*******************************************************************************
** 函数：Time0_Int() interrupt 1
** 描述：定时器0中断
*******************************************************************************/
void Time0_Int() interrupt 1
{
TH0=0xD8; //重赋初值
TL0=0xEF; //重赋初值
Count++; //长度加1
}
/*******************************************************************************
** 函数：Delay_xMs(unsigned int x)
** 描述： 50us
*******************************************************************************/
void Delay_xMs(unsigned int x)
{
unsigned int i,j;
for(i=0;i<x;i++)
{
for(j=0;j<3;j++);
}
}
/*******************************************************************************
** 函数：Play_Song
** 描述：歌曲播放子程序i为播放哪一段曲目
*******************************************************************************/
void Play_Song(unsigned char i)
{
unsigned char Temp1,Temp2; //Temp1(频率)调用数组内的单数,Temp2(拍子)调用数组里的偶数,
unsigned int Addr;
Count=0; //中断计数器清0 过10ms自加一次.
Addr=i*217; //如果i为0,计算从0开始,如果i为1,计算从217开始,也就是第二首歌的起始地址.
while(1)
{
Temp1=SONG[Addr++];
if(Temp1==0xFF) //休止符
{
TR0=0; //关闭TO.
Delay_xMs(100);
}
else if (Temp1==0x00) //歌曲结束符
{
Addr++;
i++;
if(i==2)
{
i=0;
return; //返回
}
}
else
{
Temp2=SONG[Addr++];
TR0=1; //开定时器T0
while(1)
{
_Speak = ~_Speak;
Delay_xMs(Temp1);
if (Temp2== Count)
{
Count = 0;
break; //跳出while(1)循环
}
}
}
}
}
/*******************************************************************************
** 函数：main()
** 描述：
*******************************************************************************/
void main()
{
Time0_Init(); //定时器0中断初始化
while(1)
{
Play_Song(0);
}
}
这是我对你的程序的一些注释,希望能对你有所帮助.
可能也有很多不足之处,希望大家多多指正. |
发表于 2009-10-22 20:41:43
楼主
