单片机数码管显示闪烁程序

ID:741025 · 发表于 2020-10-9 22:35

include<reg51.h>
#include<stdio.h>
#include<string.h>
#define uchar unsigned char
#define uint unsigned int

uchar code led_m[]={0x3F,0x6,0x5B,0x4F,0x66,0x6D,0x7D,0x7,0x7F,0x6F,} ;
sbit duanxuan =P2^5;
sbit weixuan =P2^6;
uchar num,num1=60,num2,shi,ge;
void Init()
{
      TMOD=0X01;
      TH0=(65536-50000)/256;
      TL0=(65536-50000)%256;
      EA=1;
      ET0=1;
      TR0=1;
}

void delay_ms(uint xms)
{
      uint i,j;
      for(i=xms;i>0;i--)
      for(j=110;j>0;j--);
}
void shumaguan()          //?????1???
{
            duanxuan=0;
weixuan=0;
            P0=led_m[shi];//?????
duanxuan=1;
duanxuan=0;
P0=0x00;
P0=0x02;
weixuan=1;
weixuan=0;
            delay_ms(60);
   P0=0x00;
   P0=led_m[ge];//?????
duanxuan=1;
duanxuan=0;
P0=0x00;
P0=0x01;
weixuan=1;
weixuan=0;
P0=0x00;
            delay_ms(60);
}
void main()
{ Init();
  while(1)
{
shumaguan();
   }

}

void Timer0()interrupt 1
{
      TH0=(65536-50000)/256;
      TL0=(65536-50000)%256;
      num++;
      if(num==20)
      {
            num=0;
            num1--;
            if(num1==0)
            num1=60;
            shi=num1/10;
            ge=num1%10;
      }
}

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