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標(biāo)題: 基于51單片機(jī)計(jì)數(shù)器設(shè)置，數(shù)碼管顯示0~99 [打印本頁(yè)]

作者: 1065957842 時(shí)間: 2018-2-6 22:58
標(biāo)題: 基于51單片機(jī)計(jì)數(shù)器設(shè)置，數(shù)碼管顯示0~99
#include<reg51.h>
unsigned char table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
sbit shi=P2^0;
sbit ge=P2^1;
void display(unsigned char da);
void delay(void)
{
  unsigned char i=10;
  while(i--);
}
void main()
{
unsigned char i=0;
unsigned char jishu;
unsigned int j;
while(1)
{
   j=2000;
   while(j--)
   {
      display(jishu);

   }
   if(jishu<99)
      jishu++;
   else
      jishu=0;
}
}
void display(unsigned char da)
{ shi=0;
  P0=table[da%10];
  delay();
  P0=0xff;
  shi=1;
  ge=0;
  P0=table[da/10];
  delay();
  P0=0xff;
  ge=1;

}

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