51单片机音乐播放程序设计

51单片机音乐播放程序设计,第1张

给大家分享下51单片机播放音乐简谱的函数库:

SOUND PLAY FOR 51MCU

COPYRIGHT (c) 2005 BY JJJ.

--ALL RIGHTS RESERVED--

File Name: SoundPlay.h

Author: Jiang Jian Jun

Created: 2005/5/16

Modified:NO

Revision: 1.0

说明

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

/**************************************************************************

#define SYSTEM_OSC 11059200/12000000 /定义晶振频率12000000HZ

#define SOUND_SPACE4/5 /定义普通音符演奏的长度分率,/每4分音符间隔

sbit BeepIO = P2^6;/定义输出管脚

unsigned intcode 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

/**************************************************************************

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)%6; / 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;i12;i) / 根据调号及升降八度来生成新的频率表

{

j = i Signature;

if(j11)

{

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]; br / 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(PointSoundLength)

{

SL=Tone; /计算出音符

SM=Tone/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%6;

TH0 = Sound_Temp_TH0;

TL0 = Sound_Temp_TL0 12; /加12是对中断延时的补偿

}

SLen=LengthTab[Length];/算出是几分音符

XG=Length/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;i0;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;i0;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

以下为曲谱编码文件,自己可以根据规则,对照简谱编写曲谱编码表,我已经做好了一个应用程序,只需将简谱输入进去,就可以直接输出曲谱编码表,省去人工编码的痛苦。此软件作为共享软件发布,此东东绝对是搞电子设计在校大学生泡MM的巨佳手段,呵呵。

▎附录:

/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,

bsp; 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};

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原文地址: http://outofmemory.cn/dianzi/2592596.html

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