PIC18F45k20 C18 display a result of CAN in LCD

#include <p18f45k20.h>
#include <stdio.h>

#define LCD_DATA   	 PORTD
#define LCD_RS       PORTCbits.RC0
#define LCD_E        PORTCbits.RC1

void main (void);
void PImain (void);
void Initialize(void);
void a2d_conversion(void);
void lcd_init(void);
void lcd_command(unsigned char);
void lcd_affiche(unsigned float);
void lcd_goto(unsigned char);
void lcd_delay(void);



#pragma code

/*************************
 * Definition des Variables
 *************************/
	float conversion;
	double U0; 	
	double U1;
	double prop;
	double integ;
	char error0; 
	char error1;
	int Yc;
	char Co;
	char M; 
	unsigned char kp;
	unsigned char ki;
	unsigned char delay;

/*********************
 * Fonction principal
 ********************/

void main()
{
	
 kp=8;
 ki=2;
 Co=98;

 TRISD=0;
 ADCON1=0x0E;
 ADCON0=0x01;
 ADCON2=0x00;

  lcd_init(); 
  lcd_affiche('Y'); 
  lcd_affiche('c'); 
  lcd_affiche('=');
   	
while(1)
{
 delay = 0x01;

 ADCON0bits.ADON = 1; 

	while (delay != 0)
		{
			delay -= 1;
		}

 ADCON0bits.GO = 1;

	while (ADCON0bits.GO)
		{
			//pas de opcode;		
		}

 Yc = ADRESH ;	
 conversion=(5*Yc)/1024;
 lcd_goto(3);
 
[b] // display result of ADC in LCD[/b]  
}
}
/******************************************
 * Initialisation de l’afficheur LCD 1x16
 ******************************************/

void lcd_init(void)
{
 TRISC=0;
 TRISD=0;
 lcd_command(0x30);	 	//accès 8 bits, 1 ligne de 16 C,
 lcd_command(0x01); 	//reset l'afficheur
 lcd_command(0x0C); 	//affichage ON - curseur ON 
 lcd_command(0x06); 	//deplacement du curseur vers la droite
}

/******************************************
 * configuration de l’afficheur LCD 1x16
 ******************************************/

void lcd_command(unsigned char comand) 
{
  LCD_RS = 0;
  LCD_DATA = comand;
  LCD_E = 1;
  lcd_delay();
  LCD_E = 0;
}

/*********************
 * afficher sur LCD
 *********************/

void lcd_affiche(unsigned float affich) 
{
 LCD_RS = 1;
 LCD_DATA=affich;
 LCD_E = 1;
 lcd_delay();
 LCD_E = 0;
}

/*******************************
 * choisir une Position sur LCD
 *******************************/

void lcd_goto(unsigned char pos)
{
	TRISC = 0;
	TRISD = 0;	
	LCD_RS = 0;
	lcd_command(0x80+pos);
}

/*************************
 * Temporisation pour LCD
 *************************/

void lcd_delay(void)
{
int i=0;
for (i=0;i<250;i++);
}

void print_float(float n){
 int i,j;
 i=(int)n; //first integer digit  //assuming its from 0.0 to 5.0
 lcd_affiche(0x30|i);
 lcd_affiche('.');
 for(j=0;j<3;j++){
  n*=10.0;
  i=(int)(n);
  lcd_affiche(0x30|i);
 }
}

 conversion=(5.0*Yc)/1024.0;
 lcd_goto(3);
 
 // display result of ADC in LCD
 print_float(conversion);

void print_float(float n){
 int i,j;
 i=(int)n; //first integer digit  //assuming its from 0.0 to 5.0
 lcd_affiche(0x30|i);
 lcd_affiche('.');
 for(j=0;j<3;j++){
  n-=i; //hope it's enought...
  n*=10.0;
  i=(int)(n);
  lcd_affiche(0x30|i);
 }
}

void print_float(float n){
 int i,j;
 i=(int)n; //first integer digit  //assuming its from 0.0 to 5.0
 lcd_affiche(0x30|i);
 lcd_affiche('.');
 for(j=0;j<3;j++){
  n*=10.0;
  i=((int)(n))%10;//just the digit!
  lcd_affiche(0x30|i);
 }
}