用两个定时器放音乐的程序，有点问题，大家帮忙看看

只看该作者 · 2011-5-29 19:34

曲谱存贮格式 unsigned char code MusicName{音高，音长，音高，音长...., 0,0}; 末尾:0,0 表示结束(Important)
音高由三位数字组成：个位是表示 1~7 这七个音符十位是表示音符所在的音区:1-低音，2-中音，3-高音; 百位表示这个音符是否要升半音: 0-不升，1-升半音。
音长最多由三位数字组成：个位表示音符的时值，其对应关系是：
|数值(n):  |0 |1 |2 |3 | 4 | 5 | 6
|几分音符: |1 |2 |4 |8 |16 |32 | 64 音符=2^n
十位表示音符的演奏效果(0-2):  0-普通，1-连音，2-顿音
百位是符点位: 0-无符点，1-有符点
调用演奏子程序的格式
Play(乐曲名,调号,升降八度,演奏速度);
|乐曲名          : 要播放的乐曲指针,结尾以(0,0)结束;
|调号(0-11)    : 是指乐曲升多少个半音演奏;
|升降八度(1-3) : 1:降八度, 2:不升不降, 3:升八度;
|演奏速度(1-12000): 值越大速度越快;
***************************************************************************/
#ifndef __SOUNDPLAY_H_REVISION_FIRST__
#define __SOUNDPLAY_H_REVISION_FIRST__
#include <reg51.h>
//**************************************************************************
#define SYSTEM_OSC 11059200//定义晶振频率
#define SOUND_SPACE  4/5    //定义普通音符演奏的长度分率,//每4分音符间隔
sbit BeepIO =  P2^3;  //定义输出管脚
unsigned int  code FreTab[12]  = { 262,277,294,311,330,349,369,392,415,440,466,494 }; //原始频率表
unsigned char code SignTab[7]  = { 0,2,4,5,7,9,11 };          //1~7在频率表中的位置
unsigned char code LengthTab[7]= { 1,2,4,8,16,32,64 };
unsigned char Sound_Temp_TH0,Sound_Temp_TL0; //音符定时器初值暂存
unsigned char Sound_Temp_TH1,Sound_Temp_TL1; //音长定时器初值暂存
unsigned char code Music_Girl[];
unsigned char code Music_Same[];
unsigned char code Music_Two[];             //
//**************************************************************************
void InitialSound(void)
{
BeepIO = 1;
Sound_Temp_TH1 = (65535-(1/1200)*SYSTEM_OSC)/256; // 计算TL1应装入的初值  (10ms的初装值)
Sound_Temp_TL1 = (65535-(1/1200)*SYSTEM_OSC)%256; // 计算TH1应装入的初值
TH1 = Sound_Temp_TH1;
TL1 = Sound_Temp_TL1;
TMOD  |= 0x11;
ET0 = 1;
ET1 = 0;
TR0 = 0;
TR1 = 0;
EA    = 1;
}
void BeepTimer0(void) interrupt 1 //音符发生中断
{
BeepIO = !BeepIO;
TH0 = Sound_Temp_TH0;
TL0 = Sound_Temp_TL0;
}
//**************************************************************************
void Play(unsigned char *Sound,unsigned char Signature,unsigned Octachord,unsigned int Speed)
{
unsigned int NewFreTab[12];  //新的频率表
unsigned char i,j;
unsigned int Point,LDiv,LDiv0,LDiv1,LDiv2,LDiv4,CurrentFre,Temp_T,SoundLength;
unsigned char Tone,Length,SL,SH,SM,SLen,XG,FD;
for(i=0;i<12;i++)    // 根据调号及升降八度来生成新的频率表
{
  j = i + Signature;
  if(j > 11)
  {
j = j-12;
NewFreTab[i] = FreTab[j]*2;
  }
  else
NewFreTab[i] = FreTab[j];
  if(Octachord == 1)
NewFreTab[i]>>=2;
  else if(Octachord == 3)
NewFreTab[i]<<=2;
}
SoundLength = 0;
while(Sound[SoundLength] != 0x00) //计算歌曲长度
{
  SoundLength+=2;
}
Point = 0;
Tone = Sound[Point];
Length = Sound[Point+1]; // 读出第一个音符和它时时值
LDiv0 = 12000/Speed; // 算出1分音符的长度(几个10ms)
LDiv4 = LDiv0/4;    // 算出4分音符的长度
LDiv4 = LDiv4-LDiv4*SOUND_SPACE;  // 普通音最长间隔标准
TR0 = 0;
TR1 = 1;
while(Point < SoundLength)
{
  SL=Tone%10;       //计算出音符
  SM=Tone/10%10;       //计算出高低音
  SH=Tone/100;       //计算出是否升半
  CurrentFre = NewFreTab[SignTab[SL-1]+SH];  //查出对应音符的频率
  if(SL!=0)
  {
if (SM==1) CurrentFre >>= 2; //低音
if (SM==3) CurrentFre <<= 2; //高音
Temp_T = 65536-(50000/CurrentFre)*10/(12000000/SYSTEM_OSC);//计算计数器初值
Sound_Temp_TH0 = Temp_T/256;
Sound_Temp_TL0 = Temp_T%256;
TH0 = Sound_Temp_TH0;
TL0 = Sound_Temp_TL0 + 12; //加12是对中断延时的补偿
  }
  SLen=LengthTab[Length%10];  //算出是几分音符
  XG=Length/10%10; //算出音符类型(0普通1连音2顿音)
  FD=Length/100;
  LDiv=LDiv0/SLen; //算出连音音符演奏的长度(多少个10ms)
  if (FD==1)
LDiv=LDiv+LDiv/2;
  if(XG!=1)
if(XG==0)    //算出普通音符的演奏长度
if (SLen<=4)
   LDiv1=LDiv-LDiv4;
else
   LDiv1=LDiv*SOUND_SPACE;
else
LDiv1=LDiv/2; //算出顿音的演奏长度
  else
LDiv1=LDiv;
  if(SL==0) LDiv1=0;
LDiv2=LDiv-LDiv1; //算出不发音的长度
if (SL!=0)
  {
TR0=1;
for(i=LDiv1;i>0;i--)  //发规定长度的音
{
while(TF1==0);
TH1 = Sound_Temp_TH1;
TL1 = Sound_Temp_TL1;
TF1=0;
}
  }
  if(LDiv2!=0)
  {
TR0=0; BeepIO=1;
for(i=LDiv2;i>0;i--)  //音符间的间隔
{
while(TF1==0);
TH1 = Sound_Temp_TH1;
TL1 = Sound_Temp_TL1;
TF1=0;
}
  }
  Point+=2;
  Tone=Sound[Point];
  Length=Sound[Point+1];
}
BeepIO = 1;
}
//**************************************************************************
#endif

  unsigned char code ceshi[]= {11,2, 12,2, 13,2, 14,2, 15,2, 16,2, 17,2,
      21,2, 22,2, 23,2, 24,2, 25,2, 26,2, 27,2,
      31,2, 32,2, 33,2, 34,2, 35,2, 36,2, 37,2,
      0,0,0,0,
   };
void main(void)
{
InitialSound();          //定时器初始化
Play(ceshi,11,2,150);
//Play(Music_Two,11,2,150); //可以调节函数的后面三个参数，调到合适为止
//Play(Music_Girl,11,2,100);
//Play(Music_Same,12,2,200);
}
//挥着翅膀的女孩
unsigned char code Music_Girl[]={ 0x17,0x02, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x15,0x03,
                              0x16,0x03, 0x17,0x03, 0x17,0x03, 0x17,0x03, 0x18,0x03,
                              0x19,0x02, 0x16,0x03, 0x17,0x03, 0x18,0x02, 0x18,0x03,
                              0x17,0x03, 0x15,0x02, 0x18,0x03, 0x17,0x03, 0x18,0x02,
                              0x10,0x03, 0x15,0x03, 0x16,0x02, 0x15,0x03, 0x16,0x03,
                              0x17,0x02, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x1A,0x03,
                              0x1B,0x03, 0x1F,0x03, 0x1F,0x03, 0x17,0x03, 0x18,0x03,
                              0x19,0x02, 0x16,0x03, 0x17,0x03, 0x18,0x03, 0x17,0x03,
                              0x18,0x03, 0x1F,0x03, 0x1F,0x02, 0x16,0x03, 0x17,0x03,
                              0x18,0x03, 0x17,0x03, 0x18,0x03, 0x20,0x03, 0x20,0x02,
                              0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03,
                              0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x03,
                              0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66,
                              0x1A,0x03, 0x19,0x03, 0x15,0x03, 0x15,0x03, 0x17,0x03,
                              0x16,0x66, 0x17,0x04, 0x18,0x04, 0x18,0x03, 0x19,0x03,
                              0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03,
                              0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x03,
                              0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66,
                              0x1A,0x03, 0x19,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03,
                              0x1F,0x00, 0x1A,0x03, 0x1A,0x03, 0x1A,0x03, 0x1B,0x03,
                              0x1B,0x03, 0x1A,0x03, 0x19,0x03, 0x19,0x02, 0x17,0x03,
                              0x15,0x17, 0x15,0x03, 0x16,0x03, 0x17,0x03, 0x18,0x03,
                              0x17,0x04, 0x18,0x0E, 0x18,0x03, 0x17,0x04, 0x18,0x0E,
                              0x18,0x66, 0x17,0x03, 0x18,0x03, 0x17,0x03, 0x18,0x03,
                              0x20,0x03, 0x20,0x02, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66,
                              0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03, 0x1B,0x03,
                              0x1F,0x66, 0x1F,0x04, 0x1B,0x0E, 0x1B,0x03, 0x19,0x03,
                              0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03,
                              0x15,0x03, 0x15,0x03, 0x17,0x03, 0x16,0x66, 0x17,0x04,
                              0x18,0x04, 0x18,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03,
                              0x1F,0x66, 0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03,
                              0x1B,0x03, 0x1F,0x66, 0x1F,0x03, 0x1B,0x03, 0x19,0x03,
                              0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03,
                              0x19,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x00, 0x18,0x02,
                              0x18,0x03, 0x1A,0x03, 0x19,0x0D, 0x15,0x03, 0x15,0x02,
                              0x18,0x66, 0x16,0x02, 0x17,0x02, 0x15,0x00, 0x00,0x00};
//同一首歌
unsigned char code Music_Same[]={ 0x0F,0x01, 0x15,0x02, 0x16,0x02, 0x17,0x66, 0x18,0x03,
                              0x17,0x02, 0x15,0x02, 0x16,0x01, 0x15,0x02, 0x10,0x02,
                              0x15,0x00, 0x0F,0x01, 0x15,0x02, 0x16,0x02, 0x17,0x02,
                              0x17,0x03, 0x18,0x03, 0x19,0x02, 0x15,0x02, 0x18,0x66,
                              0x17,0x03, 0x19,0x02, 0x16,0x03, 0x17,0x03, 0x16,0x00,
                              0x17,0x01, 0x19,0x02, 0x1B,0x02, 0x1B,0x70, 0x1A,0x03,
                              0x1A,0x01, 0x19,0x02, 0x19,0x03, 0x1A,0x03, 0x1B,0x02,
                              0x1A,0x0D, 0x19,0x03, 0x17,0x00, 0x18,0x66, 0x18,0x03,
                              0x19,0x02, 0x1A,0x02, 0x19,0x0C, 0x18,0x0D, 0x17,0x03,
                              0x16,0x01, 0x11,0x02, 0x11,0x03, 0x10,0x03, 0x0F,0x0C,
                              0x10,0x02, 0x15,0x00, 0x1F,0x01, 0x1A,0x01, 0x18,0x66,
                              0x19,0x03, 0x1A,0x01, 0x1B,0x02, 0x1B,0x03, 0x1B,0x03,
                              0x1B,0x0C, 0x1A,0x0D, 0x19,0x03, 0x17,0x00, 0x1F,0x01,
                              0x1A,0x01, 0x18,0x66, 0x19,0x03, 0x1A,0x01, 0x10,0x02,
                              0x10,0x03, 0x10,0x03, 0x1A,0x0C, 0x18,0x0D, 0x17,0x03,
                              0x16,0x00, 0x0F,0x01, 0x15,0x02, 0x16,0x02, 0x17,0x70,
                              0x18,0x03, 0x17,0x02, 0x15,0x03, 0x15,0x03, 0x16,0x66,
                              0x16,0x03, 0x16,0x02, 0x16,0x03, 0x15,0x03, 0x10,0x02,
                              0x10,0x01, 0x11,0x01, 0x11,0x66, 0x10,0x03, 0x0F,0x0C,
                              0x1A,0x02, 0x19,0x02, 0x16,0x03, 0x16,0x03, 0x18,0x66,
                              0x18,0x03, 0x18,0x02, 0x17,0x03, 0x16,0x03, 0x19,0x00,
                              0x00,0x00 };
//两只蝴蝶
unsigned char code Music_Two[] ={ 0x17,0x03, 0x16,0x03, 0x17,0x01, 0x16,0x03, 0x17,0x03,
                              0x16,0x03, 0x15,0x01, 0x10,0x03, 0x15,0x03, 0x16,0x02,
                              0x16,0x0D, 0x17,0x03, 0x16,0x03, 0x15,0x03, 0x10,0x03,
                              0x10,0x0E, 0x15,0x04, 0x0F,0x01, 0x17,0x03, 0x16,0x03,
                              0x17,0x01, 0x16,0x03, 0x17,0x03, 0x16,0x03, 0x15,0x01,
                              0x10,0x03, 0x15,0x03, 0x16,0x02, 0x16,0x0D, 0x17,0x03,
                              0x16,0x03, 0x15,0x03, 0x10,0x03, 0x15,0x03, 0x16,0x01,
                              0x17,0x03, 0x16,0x03, 0x17,0x01, 0x16,0x03, 0x17,0x03,
                              0x16,0x03, 0x15,0x01, 0x10,0x03, 0x15,0x03, 0x16,0x02,
                              0x16,0x0D, 0x17,0x03, 0x16,0x03, 0x15,0x03, 0x10,0x03,
                              0x10,0x0E, 0x15,0x04, 0x0F,0x01, 0x17,0x03, 0x19,0x03,
                              0x19,0x01, 0x19,0x03, 0x1A,0x03, 0x19,0x03, 0x17,0x01,
                              0x16,0x03, 0x16,0x03, 0x16,0x02, 0x16,0x0D, 0x17,0x03,
                              0x16,0x03, 0x15,0x03, 0x10,0x03, 0x10,0x0D, 0x15,0x00,
                              0x19,0x03, 0x19,0x03, 0x1A,0x03, 0x1F,0x03, 0x1B,0x03,
                              0x1B,0x03, 0x1A,0x03, 0x17,0x0D, 0x16,0x03, 0x16,0x03,
                              0x16,0x0D, 0x17,0x01, 0x17,0x03, 0x17,0x03, 0x19,0x03,
                              0x1A,0x02, 0x1A,0x02, 0x10,0x03, 0x17,0x0D, 0x16,0x03,
                              0x16,0x01, 0x17,0x03, 0x19,0x03, 0x19,0x03, 0x17,0x03,
                              0x19,0x02, 0x1F,0x02, 0x1B,0x03, 0x1A,0x03, 0x1A,0x0E,
                              0x1B,0x04, 0x17,0x02, 0x1A,0x03, 0x1A,0x03, 0x1A,0x0E,
                              0x1B,0x04, 0x1A,0x03, 0x19,0x03, 0x17,0x03, 0x16,0x03,
                              0x17,0x0D, 0x16,0x03, 0x17,0x03, 0x19,0x01, 0x19,0x03,
                              0x19,0x03, 0x1A,0x03, 0x1F,0x03, 0x1B,0x03, 0x1B,0x03,
                              0x1A,0x03, 0x17,0x0D, 0x16,0x03, 0x16,0x03, 0x16,0x03,
                              0x17,0x01, 0x17,0x03, 0x17,0x03, 0x19,0x03, 0x1A,0x02,
                              0x1A,0x02, 0x10,0x03, 0x17,0x0D, 0x16,0x03, 0x16,0x01,
                              0x17,0x03, 0x19,0x03, 0x19,0x03, 0x17,0x03, 0x19,0x03,
                              0x1F,0x02, 0x1B,0x03, 0x1A,0x03, 0x1A,0x0E, 0x1B,0x04,
                              0x17,0x02, 0x1A,0x03, 0x1A,0x03, 0x1A,0x0E, 0x1B,0x04,
                              0x17,0x16, 0x1A,0x03, 0x1A,0x03, 0x1A,0x0E, 0x1B,0x04,
                              0x1A,0x03, 0x19,0x03, 0x17,0x03, 0x16,0x03, 0x0F,0x02,
                              0x10,0x03, 0x15,0x00, 0x00,0x00 };

只看该作者 · 2011-5-29 19:35

硬件很简单，大神们都懂的，现在播放时不同的音调时间不一样~~

只看该作者 · 2011-5-29 19:35

节奏不准~

用两个定时器放音乐的程序，有点问题，大家帮忙看看

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