51單片機(jī)蜂鳴器生日快樂(lè)

ID:932669 · 發(fā)表于 2021-7-18 15:33

#include <reg51.h>
#define uint unsigned int
#define uchar unsigned char
sbit beep = P2^3;
uchar 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};
uchar 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(uint x)
{
   uchar t;
   while(x--) for(t=0;t<120;t++);
}

//?????????
void PlayMusic()
{
   uint i=0,j,k;
   while(SONG_LONG[i]!=0||SONG_TONE[i]!=0)
{
   for(j=0;j<SONG_LONG[i]*20;j++)  //??????,SONG_LON
{
      beep=~beep;
      for(k=0;k<SONG_TONE[i]/3;k++);//SONG_TON
}
DelayMS(10);
i++;
}
}

void main()
{
beep=0;
while(1)
{
      PlayMusic()
      DelayMS(500)
}
}

ID:971480 · 發(fā)表于 2021-10-12 21:48

這段代碼要是有注釋就好了，有些地方不是很懂

ID:989859 · 發(fā)表于 2021-12-8 23:45

倒數(shù)第三行，倒數(shù)第四行，少了；。賦值的時(shí)候別忘了加

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51單片機(jī)蜂鳴器生日快樂(lè)

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