51单片机音乐C程序怎么解读？？？？ (amobbs.com 阿莫电子技术论坛) -

lllll 发表于 2009-10-22 20:41:43

51单片机音乐C程序怎么解读？？？？

#include <reg52.h>
unsigned char Count;
sbit _Speak =P2^3 ;                      //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,

};

void Time0_Init()
{
   TMOD = 0x01;
   IE       = 0x82;
   TH0= 0xD8;
   TL0= 0xEF;             //12MZ晶振，10ms
}

void Time0_Int() interrupt 1
{
   TH0 = 0xD8;
   TL0 = 0xEF;
   Count++;                      //长度加1
}

/*-------------------------------------------------
功能:1MS延时子程序
-------------------------------------------------*/
void Delay_xMs(unsigned int x)
{
unsigned int i,j;
for( i =0;i < x;i++ )
{
   for( j =0;j<3;j++ );
}
}

/*-------------------------------------------------
功能: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;
   unsigned int Addr;
   Count = 0;                                              //中断计数器清0
   Addr = i * 217;
   while(1)
   {
            Temp1 = SONG;
         if ( Temp1 == 0xFF )       //休止符
         {
               TR0 = 0;
               Delay_xMs(100);
         }
         else if ( Temp1 == 0x00 )       //歌曲结束符
         {
                     Addr++;
                     i++;
                     if(i==2)
                     {
                           i=0;
                        return;
                     }
         }
         else
         {
               Temp2 = SONG;
               TR0 = 1;
                     while(1)
                     {
                        _Speak = ~_Speak;
                        Delay_xMs(Temp1);
                        if ( Temp2 == Count )
                        {
                                 Count = 0;
                                 break;
                        }
                     }
         }
   }
}
/*-------------------------------------------------
功能:主程序
-------------------------------------------------*/
void main()
{
   Time0_Init();                      //定时器0中断初始化
   while(1)
   {
            Play_Song(0);
   }
}

程序看似简单，但是就是不明白，数组里的一个字节什么意思？？
else
         {
               Temp2 = SONG;
               TR0 = 1;
                     while(1)
                     {
                        _Speak = ~_Speak;
                        Delay_xMs(Temp1);
                        if ( Temp2 == Count )
                        {
                                 Count = 0;
                                 break;
                        }
                     }
         }
   }
这里也不明白？？？

smallworm 发表于 2009-10-22 21:02:19

应该是代表时间长短吧

58180698 发表于 2009-10-22 21:16:24

请问一下楼主,你的这个程序确定没有问题吗?

lllll 发表于 2009-10-22 22:04:51

我从网上找的，看这个结构比较简单，我试过，没问题。。

cbs110 发表于 2010-7-3 11:08:05

这程序貌似有问题吧，定时器中断里TH0，TL0为固定值？

newlife0828 发表于 2010-12-7 21:28:56

#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;
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;
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.

wxhland 发表于 2010-12-8 00:36:55

else
{
Temp2=SONG;
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
}
}
}
这一段注释的不是太清楚，麻烦楼上再解释下好吗？

wxhland 发表于 2010-12-8 00:41:59

有点理解了，temp1代表频率，temp2代表这种频率声音持续的时间。

southpolefirn 发表于 2010-12-8 00:44:07

注意这段音乐程序的实现是：频率（声音高低），节拍（是这个频率的持续时间）。

cqsgcqsg 发表于 2011-2-22 23:35:20

顶

692446 发表于 2012-12-4 13:13:59

{:titter:}{:titter:}{:titter:}{:titter:}

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51单片机音乐C程序怎么解读？？？？