embedded C code problem

[Laxman_rao]

Any one can help me!
i am doing Pulses wdith varying Between 1 to 5v in keil by using 89s52+0809adc.
but it not generate the pulses.

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#include<reg51.h>
void delay(int);
void BCD(void);
void delay_pulse(int );
 
sbit ALE=P0^6;
sbit SC=P0^5;
sbit EOC=P3^2;
sbit OE=P0^7;
sbit A0=P0^2;
sbit A1=P0^1;
sbit A2=P0^0;
//sbit clk=P1^7;
 
/*void timer0() interrupt 1  // Function to generate clock of frequency 500KHZ using Timer 0 interrupt.
{
clk=~clk;
}*/
unsigned char x,y;
 
void main()
{
 
     P2=0xFF;
    P0=0x00;
    P3=0xFF;
    while(1)
    {
        A0=0; 
        A1=0; 
        A2=0;
        delay(1);
        ALE=1;
        delay(1);
        SC=1;
        delay(1);
        ALE=0;
        SC=0;
        while(EOC==1); 
        while(EOC==0);
        OE=1;
        BCD();
        delay(1);
        OE=0;
 
    }
}
void delay(int m)
{
    int i,j;
    for(i=0;i<=250;i++)
    for(j=0;j<=m;j++);
}
void delay_pulse(int j)
{
    int i,k;
    for(i=0;i<=250;i++)
    for(k=0;k<=j;k++);
}
void BCD()
{   int z;
    x=P2;
    y=x%10;
    x=x/10;
    z=y+48;
    P1=0x00;
    delay_pulse(z);
    P1=0x01;
    delay_pulse(z);
}

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[bhav]

from your statement it looks like you want to change the pulse amplitude from 1v to 5v then cycle.

first generate a square wave of equal height/amplitude.

then do insert module for changing the converter bit coding from 1V code to 5V code.

this should work out