標(biāo)題: 求助蜂鳴器能夠發(fā)出1到7這七個(gè)音調(diào)，不知程序那里有問題 [打印本頁(yè)]
作者: 賣蘋果的喬布斯    時(shí)間: 2018-10-17 15:10
標(biāo)題: 求助蜂鳴器能夠發(fā)出1到7這七個(gè)音調(diào)，不知程序那里有問題
#include<reg52.h>

sbit beep=P1^5;

#define uint unsigned int
#define uchar unsigned char

uint code high[]={0xf8,0xf9,0xfa,0xfa,0xfb,0xfb,0xfc};
uint code low[]={0x89,0x5b,0x15,0x67,0x04,0x90,0x0c};

uint i=0;
uint m=0;

void init()
{
  TMOD=0x01;
  EA=1;
  ET0=1;
}

void main()
{
  init();
  while(m%2==0)
  {
  TH0=high[i];
  TL0=low[i];
  TR0=1;
        }
}

void t0()interrupt 1
{
  
        TH0=high[i];
  TL0=low[i];
  beep=~beep;
        m++;
        if(m%2==0)
                i++;
        if(i>7)
                i=0;

       
}



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