dac0832.c

来自「自己做的单片机Proteus仿真实例」· C语言 代码 · 共 71 行

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

sbit seg0=P3^5;
sbit seg1=P3^6;
sbit seg2=P3^7;
uchar code table[]={0xfc,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xfe,0xf6};
               
uchar num[3];

void  delay(uint x)
{
     uint i,j;
	 for(i=x;i>0;i--)
	    for(j=110;j>0;j--);
}
void  shuju()
{
     uint bai,shi,ge,value,value1;
	 value1=P1;
	 value=(value1*100)/51;
	 bai=value/100;
	 shi=(value%100)/10;
	 ge=value%10;
	 num[0]=table[bai]+0x01;
	 num[1]=table[shi];
	 num[2]=table[ge];
}
void  disp()
{
      P0=0xff;
      seg0=0;
	  P0=num[0];
	 // P0=table[bai];
	  delay(5);
	  seg0=1;

	  P0=0xff;
      seg1=0;
	  P0=num[1];
	 // P0=table[shi];
	  delay(5);
	  seg1=1;

	  P0=0xff;
      seg2=0;
	  P0=num[2];
	 // P0=table[ge];
	  delay(5);
	  seg2=1;
}
void main()
{
 
	  while(1)
	  {
	      P2=P1;
	      shuju();
	      disp();
		  
	  }

}