#include <stdio.h>
#include <absacc.h>
#include <reg52.h>
#include <math.h>
#define uchar unsigned char
#define uint unsigned int 

//*?????
sbit E0=P3^0;      //*??P3.0,?EPWM??????
sbit L0=P2^4;
sbit K2=P2^2;
sbit K1=P2^1;
sbit K0=P2^0;

//*????????"0"-"5"
uchar code a[6]={0x11,0x12,0x13,0x14,0x15,0x16};
//*IPWM????
uchar code  b[6]={0x0c,0x19,0xab,0x32,0x3f,0x4f}; 
uchar time;
uchar period[6]={6000,5938,5875,5813,5750,5688};
uchar high[6]={250,312,375,437,500,562};
int i;

timer0 () interrupt 1 using 1
{
 TH0=(65536-6250)/256;
 TL0=(65536-6250)%256;
 if (++time==high[i])E0=0;
 else if(time==period[i])
 {time=0;
  E0=1;
 }
}

   delay();
   if ((K1==0)&&(K2==1))
  {i++;
         time=period[i];time++;
        time=high[i];
        P0= b[i];
        P1= a[i]; }
   else if ((K2==0)&&(K1==1))
    {
     i--; 
        time=period[i]; time++;
        time=high[i];
        P0= b[i];
        P1= a[i];
        }
      
   if ((K1==0)&&(i<=0))
         { i=0;
        time=period[i];time++;
        time=high[i];
        P0= b[i];
        P1= a[i];
        }
       if ((K2==0)&&(i>=5))
      {
   i=5;
         time=period[i];time++;
        time=high[i];
        P0= b[i];
        P1= a[i];
         }     
}

i=1  wu cuo
i=2 /*** error 65: access violation at C:0x0100 : no 'execute/read' permission
i=3 /*** error 65: access violation at C:0x0200 : no 'execute/read' permission
i=4 /*** error 65: access violation at C:0x0200 : no 'execute/read' permission
i=5 /*** error 65: access violation at C:0x0400 : no 'execute/read' permission
i=6 /*** error 65: access violation at C:0x0500 : no 'execute/read' permission