单片机播放音乐.doc

单片机播放音乐以8051单片机为例，任选两个定时器/计数器T0,T1中的一个，设为定时方式1。利用定时器产生各音符对应频率的方波，有P1.0口驱动喇叭发音。D200为200ms延时程序，以每拍800ms为例，一拍需循环调用D200延时子程序四次。同理，半拍,3/4拍,1/4拍都可用同样的方法实现。1,2,3,4,5,6,7各音符的频率依次为524,588,660,698,784,880,988(HZ)，因此可算出各音符对定时器的初始值。结果依次为FE25H,FE57H,FE84H,FE98H,FEC0H,FEE3H,FF01H。在电脑上用Proteus软件仿真非常方便。以“飘雪”这首歌为例，汇编语言程序如下： ORG 0000H LJMP START ORG 001BH MOV TH1,R1 MOV TL1,R0 CPL P1.0 RETI ORG 0100HSTART:MOV TMOD,#10HMOV IE,#88H MOV DPTR,#TABLOOP: CLR A MOVC A,A+DPTR MOV R1,A INC DPTR CLR A MOVC A,A+DPTR MOV R0,A ORL A,R1 JZ NEXT0 MOV A,R0 ANL A,R1 CJNE A,#0FFH,NEXT SJMP STARTNEXT: MOV TH1,R1 MOV TL1,R0 SETB TR1 SJMP NEXT1NEXT0: CLR TR1NEXT1: CLR A INC DPTR MOVC A,A+DPTR MOV R2,ALOOP1: LCALL D200 DJNZ R2,LOOP1 INC DPTR AJMP LOOPD200: MOV R4,#81HD200B: MOV A,#0FFHD200A: DEC A JNZ D200A DEC R4 CJNE R4,#00H,D200B RETTAB: DB 0FDH,08H,02H,0FDH,80H,02H,0FDH,0C6H,02H,0FEH,25H,02H,0FEH,84H,02H,0FEH,0C0H,02H,0FEH,0E3H,02H,0FFH,10H,02H DB 0FFH,42H,02H,0FEH,0E3H,04H,0FDH,80H,02H,0FDH,0C6H,04H,0FFH,42H,02H,0FDH,80H,02H DB 0FDH,0C6H,02H,0FDH,80H,02H,0FDH,0C6H,02H,0FEH,25H,02H,0FEH,98H,02H,0FEH,84H,02H,0FEH,0E3H,02H,0FEH,0C0H,02H DB 0FFH,42H,02H,0FEH,98H,04H,0FFH,60H,02H,0FFH,42H,04H,0FFH,10H,02H,0FEH,98H,02H DB 0FEH,0E3H,02H,0FFH,01H,02H,0FEH,0C0H,02H,0FEH,0E3H,02H,0FEH,98H,02H,0FEH,0C0H,02H,0FEH,84H,04H DB 0FEH,84H,04H,0FEH,57H,02H,0FEH,84H,02H,0FEH,25H,04H,00H,00H,04H DB 0FEH,57H,04H,0FEH,0C0H,02H,0FEH,57H,02H,0FEH,84H,04H,0FEH,57H,04H DB 0FEH,25H,04H,00H,00H,04H,0FEH,57H,04H,0FDH,0C6H,04H DB 0FEH,07H,04H,00H,00H,04H,0FEH,25H,04H,0FEH,57H,04H DB 0FEH,84H,02H,0FEH,0C0H,02H,0FEH,0E3H,01H,0FFH,10H,03H,0FEH,0C0H,04H,0FEH,57H,02H,0FEH,84H,02H DB 0FEH,57H,02H,0FEH,57H,02H,0FEH,25H,02H,0FEH,57H,02H,0FEH,84H,04H,00H,00H,04H DB 0FEH,84H,02H,0FEH,0C0H,02H,0FEH,0E3H,01H,0FFH,10H,03H,0FEH,0C0H,04H,0FEH,57H,02H,0FEH,84H,02H DB 0FEH,57H,02H,0FEH,84H,02H,0FEH,25H,02H,0FEH,57H,01H,0FEH,25H,01H,0FEH,25H,04H,00H,00H,04H DB 0FEH,57H,02H,0FEH,84H,02H,0FEH,57H,02H,0FEH,25H,02H,0FEH,57H,04H,0FEH,25H,02H,0FEH,57H,02H DB 0FEH,84H,01H,0FEH,0C0H,03H,0FEH,84H,02H,0FEH,57H,02H,0FEH,84H,04,0FEH,84H,02H,0FEH,0C0H,02H DB 0FEH,0E3H,04H,0FEH,0E3H,02H,0FEH,0C0H,02H,0FEH,84H,04,0FEH,84H,02H,0FEH,0C0H,02H DB 0FEH,57H,01H,0FEH,84H,03H,0FEH,57H,01H,0FEH,25H,01H,0FEH,25H,02H,0FEH,57H,04H,00H,00H,04H DB 0FEH,84H,02H,0FEH,0C0H,02H,0FEH,0E3H,01H,0FFH,10H,03H,0FEH,0C0H,04H,0FEH,57H,02H,0FEH,84H,02H DB 0FEH,57H,02H,0FEH,84H,01H,0FEH,57H,01H,0FEH,25H,02H,0FEH,57H,02H,0FEH,84H,04H,00H,00H,04H DB 0FEH,84H,02H,0FEH,0C0H,02H,0FEH,0E3H,01H,0FFH,10H,03H,0FEH,0C0H,04H,0FEH,57H,02H,0FEH,84H,02H DB 0FEH,57H,02H,0FEH,84H,02H,0FEH,25H,02H,0FEH,57H,01H,0FEH,25H,01H,0FEH,25H,04H,00H,00H,04H DB 0FEH,57H,01H,0FEH,84H,03H,0FEH,57H,02H,0FEH,25H,02H,0FEH,57H,04H,0FEH,25H,02H,0FEH,57H,02H DB 0FEH,84H,01H,0FEH,0C0H,03H,0FEH,84H,02H,0FEH,57H,02H,0FEH,84H,04,0FEH,84H,02H,0FEH,0C0H,02H DB 0FEH,0E3H,04H,0FEH,0E3H,02H,0FEH,0C0H,02H,0FEH,84H,01,0FEH,84H,03,0FEH,84H,02H,0FEH,0C0H,02H DB 0FEH,57H,01H,0FEH,84H,03H,0FEH,57H,02H,0FEH,25H,02H,0FEH,57H,04H,00H,00H,04H DB 0FEH,84H,02H,0FEH,0C0H,02H,0FEH,0E3H,02H,0FFH,10H,02H,0FFH,29H,04H,0FFH,42H,04H DB 0FFH,29H,02H,0FFH,10H,01H,0FFH,10H,01H,0FFH,10H,04H,00H,00H,04H,0FFH,29H,02H,0FFH,10H,02H DB 0FEH,84H,04H,0FEH,84H,02H,0FEH,0C0H,02H,0FEH,57H,02H,0FEH,84H,02H,0FEH,84H,02H,0FEH,57H,01H,0FEH,25H,01H DB 0FEH,25H,02H,0FEH,25H,02H,0FEH,25H,04H,00H,00H,04H DB 0FFH,0FFH51单片机播放音乐以下为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 17 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=2n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_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 = P26;/定义输出管脚unsigned int code FreTab12 = 262,277,294,311,330,349,369,392,415,440,466,494 ; /原始频率表unsigned char code SignTab7 = 0,2,4,5,7,9,11 ; /17在频率表中的位置unsigned char code LengthTab7= 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)%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 NewFreTab12;/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 11)j = j-12;NewFreTabi = FreTabj*2;elseNewFreTabi = FreTabj;if(Octachord = 1)NewFreTabi=2;else if(Octachord = 3)NewFreTabi=2;SoundLength = 0;while(SoundSoundLength != 0x00)/计算歌曲长度SoundLength+=2;Point = 0;Tone = SoundPoint;Length = SoundPoint+1; / 读出第一个音符和时时值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 = 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=LengthTabLength%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 (SLen0;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=SoundPoint;Length=SoundPoint+1;BeepIO = 1;/*#endif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,&nbs; 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,&nbp; 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,&nsp; 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,0