#include
#define uchar unsigned char
sbit csda=P3^2;
sbit wr=P3^6;
sbit dula=P2^6;
sbit wela=P2^7;
uchar dig;
void delay(uchar);
void main()
{
 dula=0;
 wela=0;
 csda=0;
 wr=0;
 // delay(200);
 while(1)
 {
  P0=dig;
  delay(10);
  dig++; 
    
 }
}

void delay(uchar x)
{
 uchar a;
 unsigned int b;
 for(a=x;a>0;a--)
  for(b=100;b>0;b--);
}