基于單片機(jī)60秒倒計(jì)時(shí)計(jì)時(shí)器程序Proteus仿真圖

ID:1083231 · 發(fā)表于 2023-6-11 09:12

#include <reg51.h>
unsigned char code LED[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
unsigned char m,buf[4];
unsigned int shu,j;
void delay(unsigned char x)
{
      unsigned char y;
      for(;x>0;x--)
            for(y=110;y>0;y--);
}
void dis(unsigned int temp)
{
      unsigned char i;
      buf[0]=0;
      buf[1]=0;
      buf[2]=temp/10;
      buf[3]=temp%10;

      for(i=0;i<4;i++)
      {
            P2=(0x01<<i);
            P1=LED[buf[ i]];
            delay(5);
            P1=0xff;
      }
}

void INT_0( ) interrupt 0
{
      TR0=~TR0;
}
void INT_1( ) interrupt 2
{
      TR0=~TR0;
      TL0=(65536-50000)%256;
TH0=(65536-50000)/256;
      shu=60;
j=0;

}
void TIME_0( ) interrupt 1
{
TL0=(65536-50000)%256;
TH0=(65536-50000)/256;
j++;
      if(j==10)
      {
         j=0;
            shu--;
            if(shu==0)
            TR0=0;
      }
}
void main()
{
TCON=0x05;
IP=0x00;
TMOD=0x01;
TL0=(65536-50000)%256;
TH0=(65536-50000)/256;
TR0=1;
IE=0x87;
shu=60;
j=1;
      while(1)
      {
            dis(shu);
      }
}

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基于單片機(jī)60秒倒計(jì)時(shí)計(jì)時(shí)器程序Proteus仿真圖

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