main.c

单片机演奏乐曲的程序

#include <reg51.h>
void Music(unsigned char number);
void delay10ms(unsigned char time);
void delay50us(unsigned char time);
unsigned char code SOUNDLONG[];
unsigned char code SOUNDTONE[]; 
sbit spk=P3^5;
void main()
{ 
	while(1) 
	{  
		Music(1);  //生日快乐  
		delay10ms(250); 
	 	delay10ms(250); 
		Music(2);  //三轮车  
		delay10ms(250);
		delay10ms(250); }
}

void Music(unsigned char number)
{ 
	unsigned int k,n; 
	unsigned int SoundLong,SoundTone; 
	unsigned int i,j,m; 
	for(k=0;k<number-1;k++) 
	{  
		while(SOUNDLONG[i] !=0)
		{i++;}  
		i++;  
		if(i>=57) 
		i=0; 
	} 
	for(k=0;k<number-1;k++) 
	{  
		while(SOUNDTONE[j] !=0)
		{j++;} 
		j++;  
		if(j>=57) 
		j=0; 
	} 
	do {
		if(i>=57) 
			i=0;
	  	if(j>=57)
	 		j=0;
  	    SoundLong=SOUNDLONG[i];  
		SoundTone=SOUNDTONE[j];  
		i++;  
		j++;
  		for(n=0;n<SoundLong;n++)
		{   
			for(k=0;k<12;k++)   
			{    
				spk=0;
			    for(m=0;m<SoundTone/2;m++);
    			spk=1;
			    for(m=0;m<SoundTone/2;m++);
   		   }  
		}  
		delay50us(6); 
		}while((SOUNDLONG[i] !=0) || (SOUNDTONE[j] !=0));
}//延时程序

void delay10ms(unsigned char time)
{ 
	unsigned char a,b,c; 
	for(a=0;a<time;a++)  
		for(b=0;b<10;b++)
			for(c=0;c<120;c++);
}
void delay50us(unsigned char time)
{ 
	unsigned char a,b; 
	for(a=0;a<time;a++)  
		for(b=0;b<6;b++);
}

unsigned char code SOUNDLONG[]= {9,3,12,12,12,24,9,3,12,12,12,24,9,3,12,12,12,12,12,9,3,12,12,12,24,  0, //生日快乐end  
								6,6,9,3,6,6,12,6,6,6,6,6,6,12,6,6,9,3,6,6,9,3,6,3,3,6,3,3,6,6,9,  0 //三轮车end 
								};

unsigned char code SOUNDTONE[]={212,212,190,212,159,169,212,212,190,212,142,159,212,212,106,126,159,169,190,119,119,126,159,142,159,0, //生日快乐end
								239,239,212,189,159,159,189,159,159,142,126,120,120,159,120,120,142,159,189,142,159,189,239,212,189,159,142,159,189,212,239,0//三轮车end
								};