#include <absacc.h>
#include <reg51.h>
#define uchar unsigned char
#define uint unsigned int
//#define 6264cs xbyte[0x007f]
//#define 8255cs xbyte[0xc07f]
#define DA0832 XBYTE[0x9fff]
//#define 0809cs xbyte[0x907f] 
sbit wr=P3^6;
sbit rd=P3^7;

//void stair(void){
void main(){
 uchar i;
while(1){							 
 for(i=0;i<255;i++){
 DA0832=0;
   }
   for(i=0;i<255;i++){
 DA0832=255;
   }
  }	
}