a.c

单片机控制蜂鸣器

// #include<AT89X51.h>
#include <REGX52.H>

void Music(unsigned char number);
void delay10ms(unsigned char time);
void delay50us(unsigned char time);
unsigned char code SOUNDLONG[];
unsigned char code SOUNDTONE[];
 
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++)
   {
    P3_4=0;for(m=0;m<SoundTone/2;m++); 
    P3_4=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
};
/*
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
};
*/