51單片機蜂鳴器唱歌

/********************************************************************
* 文件名  ： 蜂鳴器唱歌.c
* 描述    :  該程序實現控制蜂鳴器演奏音樂。
   將跳線把IN5與P1.2連接                                 

***********************************************************************/
#include<reg52.h>
#define uchar unsigned char
#define uint  unsigned int
uchar Count;

sbit Speak =P1^3;                                  //蜂鳴器器控制腳 　
/*以下數組是音符編碼*/
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,
                                  //路邊的野華不要采
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,

};

/********************************************************************
* 名稱 : Time0_Init()
* 功能 : 定時器的初始化，定時時間可用光碟中軟件計算，11.0592MZ晶振，10ms
* 輸入 : 無
* 輸出 : 無
***********************************************************************/
void Time0_Init()
{
        TMOD = 0x01;
        IE          = 0x82;
        TH0  = 0xDC;
        TL0  = 0x00;               
}

/********************************************************************
* 名稱 : Time0_Int()
* 功能 : 定時器中斷，中斷中實現 Count 加一
* 輸入 : 無
* 輸出 : 無
***********************************************************************/
void Time0_Int() interrupt 1
{
        TH0 = 0xDC;
        TL0 = 0x00;
        Count++;                        //長度加1
}

/********************************************************************
* 名稱 : Delay_xMs()
* 功能 : 延時子程序，經過軟件調試，測得延時程序大概為55us.
* 輸入 : x
* 輸出 : 無
***********************************************************************/
void Delay_xMs(uint x)
{
    uint i,j;
    for(i=0; i<x; i++)
    {
        for(j=0; j<3; j++);
    }
}

/********************************************************************
* 名稱 : Play_Song()
* 功能 : 播放蜂鳴器控制程序
* 輸入 : i (選擇播放哪首歌曲，0為“祝你平安”，1為“路邊的野花你不要采”
* 輸出 : 無
***********************************************************************/
void Play_Song(uchar i)
{
        uchar Temp1,Temp2;
        uint Addr;
        Count = 0;                                                //中斷計數器清0
        Addr = i * 217;
        while(1)
        {
                Temp1 = SONG[Addr++];
            if (Temp1 == 0xFF)          //休止符
            {
                    TR0 = 0;
                    Delay_xMs(100);
            }
            else if (Temp1 == 0x00)          //歌曲結束符
            {
                    return;
            }
            else
            {
                    Temp2 = SONG[Addr++];
                    TR0 = 1;
                          while(1)
                          {
                            Speak = ~Speak;
                            Delay_xMs(Temp1);
                            if(Temp2 == Count)
                            {
                                    Count = 0;
                                    break;
                            }
                    }
            }
        }
}
/********************************************************************
* 名稱 : Main()
* 功能 : 主函數
* 輸入 : 無
* 輸出 : 無
***********************************************************************/
void Main()
{
        Time0_Init();                        //定時器0中斷初始化
        while(1)
        {
                Play_Song(0);                //Play_Song(0)為祝你平安    Play_Song(1)為路邊的野花你不要裁
        }
}