adc_count.c

PIC MICROCONTROLLER PROJECTS 4

*/adc_count 0-1023*/
#include<pic.h>
#include<math.h> 
unsigned char A,B,a,z,i,msg;
unsigned int I,j,k;
void main()
{
		#define ADCOSC		0b01000000		// ADC convertion clock fosc/8
		#define CHANNEL0      0b00000000		// ADC channel 0 (RA0/AN0)
		#define ADCON		0b00000101		// ADC power on
		ADRESH=0x00;
		ADRESL=0x00;
		TRISA=0b11111111;
		TRISC=0x00;
		TRISD=0x00;
			
		ADCON1=0b10000000;					//right justified 

		ADCON0= ADCOSC | CHANNEL0 | ADCON;
		ADCON0= ADCON0 | 0b00000100;		//start conversion
	
		while(1)
		{
		z=0b00010000;
		while(ADGO)
			{ }
			A=ADRESH & 0b00000010;
			B=ADRESH & 0b00000001;
	 
		if(A==2)
		{j=512;}
		else
		{j=0;}
		if(B==1)
		{k=256;}
		else
		{k=0;}
		I=j+k+ADRESL;					//512+256+255=1023
		for(i=0;i<=3;i++)			
		{
		msg=I%10;
		msg=msg | 0b11000000;
		PORTD=msg;
		z=z>>1;
		PORTC=z;
		PORTC=z;
		PORTC=z;
		I=I/10;
		PORTC=0;
		}
		}
		}