adc.c

Program for ADC0808 with 4 bit LCD routine. It also includes Protus Debug file.

#include<reg52.h>
#include<intrins.h>
#include <stdlib.h>
#include <absacc.h>
#include <lcd.h>
//int code0[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xc6};
sbit ADC_CH0=P3^0;	//p30=P3^0;
sbit ADC_CH1=P3^1;	//p31=P3^1;
sbit ADC_CH2=P3^2;	//p32=P3^2;
sbit CH_Rotate=P3^3;	//p33=P3^3;
sbit ADC_EOC=P3^4;	//p34=P3^4;
//sbit p35=P3^5;
sbit ADC_OE=P3^6;	//p36=P3^6;
sbit ADC_Start_ALE=P3^7;	//p37=P3^7;
//void delay(int k)
//{while(k--);}

/*void display(unsigned	char n1,n2,n3,n4)
{int i;for(i=5;i>0;i--)
{ P1=code0[0];
  P2=0x01;delay(5);P1=code0[n1];delay(500);
  P2=0x02;delay(5);P1=code0[n2];delay(500);
  P2=0x04;delay(5);P1=code0[n3];delay(500);
  P2=0x08;delay(5);P1=code0[n4];delay(500);
  P2=0;}}  */
main()
{
unsigned	char	 n1=0,n2=0,n3=0,n4=0; 
int s=0;int count=0;P0=0xff;
delay(10000);
lcd_init();	
lcd_com(CLEAR_DISPLAY);
lcd_com(CURSOR_OFF);
lcd_puts(LINE_1+2,"Hello");
lcd_puts(LINE_2+5,"World");
delay(10000);
//lcd_com(CLEAR_DISPLAY);
lcd_puts(LINE_3,"*Dixit Solanki^"); 
for(;;)
	{
	if(CH_Rotate==0) count++;
	if(count==5)count=0;
	if(count==1)
	{
		P3=0;
		ADC_Start_ALE=1;
		delay(100);
		ADC_Start_ALE=0;
//		do
//		{
     	//	P3_4=!P3_4;
//    	}while(!ADC_EOC);
		ADC_OE=1;
		s=P0;
		n2=s/100;
		n3=s%100/10;
		n4=s%10;
		delay(100); delay(100);
		CH_Rotate=1;
	}
	if(count==2)
	{
		P3=1;
		ADC_Start_ALE=1;
		delay(100);
		ADC_Start_ALE=0;
		ADC_OE=1;
		s=P0;
		n2=s/100;
		n3=s%100/10;
		n4=s%10;
		delay(100); delay(100);
		CH_Rotate=1;}
	if(count==3)
	{
		P3=2;
		ADC_Start_ALE=1;
		delay(100);
		ADC_Start_ALE=0;
		ADC_OE=1;
		s=P0;
		n2=s/100;
		n3=s%100/10;
		n4=s%10;
		delay(100); delay(100);
		CH_Rotate=1;
	}
	if(count==4)
	{
		P3=3;
		ADC_Start_ALE=1;
		delay(100);
		ADC_Start_ALE=0;
		ADC_OE=1;
		s=P0;
		n2=s/100;
		n3=s%100/10;
		n4=s%10;
		delay(100); delay(100);
		CH_Rotate=1;
	}
lcd_com(LINE_4+5);
Wrte_Variable(n2);
lcd_com(LINE_4+6);
Wrte_Variable(n3);
lcd_com(LINE_4+7);
Wrte_Variable(n4);
	//  lcd_com(LINE_2+8);
	//  Wrte_Variable(n4);
	
	
	//display(n1,n2,n3,n4);
	}
}