[自学实验][五]单片机播放乐谱

只看该作者 · 2020-11-4 22:00

想问下有没有人知道这个U2(AUDIO)怎么接,怎么用的嘛

#include<reg51.h>
sbit BEEP=P3^7;
unsigned char code SONG_TONE[]={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};
unsigned char code SONG_LONG[]={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};
void DelayMS(unsigned int x){
      unsigned char t;
      while(x--) for(t=0;t<120;t++);
}
//播放函数
void PlayMusic(){
      unsigned int i=0,j,k;
      while(SONG_LONG!=0||SONG_TONE!=0){
            for(j=0;j<SONG_LONG*20;j++){//播放各个音符，SONG_LONG为拍子长度
                     BEEP=~BEEP;
                     //SONG_TONE延时表决定了每个音符的频率
                     for(k=0;k<SONG_TONE/2;k++);
            }
            DelayMS(10);
            i++;
      }
}
void main(){
      BEEP=0;
      while(1)
      {
            PlayMusic();       //播放生日快乐
            DelayMS(1000);       //播放完后暂停一段时间
      }
}