Работа с ИЖК (PIC16F676, HiTech)

#include <pic16f676.h>
#include "lcd.c"
 
void
main(void)
{
    lcd_init();
    lcd_goto(0);    // select first line
    lcd_puts("12345678");
    lcd_goto(0x40); // Select second line
    lcd_puts("Hello world");
 
    while(1){}
}

#ifndef _XTAL_FREQ
 // Unless specified elsewhere, 4MHz system frequency is assumed
 #define _XTAL_FREQ 4000000
#endif
 
 
#include    <htc.h>
#include    "lcd.h"
 
#define LCD_RS RA0
//#define   LCD_RW RB1
#define LCD_EN RA1
 
#define LCD_DATA    PORTC
 
#define LCD_STROBE()    ((LCD_EN = 1),(LCD_EN=0))
 
/* write a byte to the LCD in 4 bit mode */
 
void
lcd_write(unsigned char c)
{
    __delay_us(40);
    LCD_DATA = ( ( c >> 4 ) & 0x0F );
    LCD_STROBE();
    LCD_DATA = ( c & 0x0F );
    LCD_STROBE();
}
 
/*
 *  Clear and home the LCD
 */
 
void
lcd_clear(void)
{
    LCD_RS = 0;
    lcd_write(0x1);
    __delay_ms(2);
}
 
/* write a string of chars to the LCD */
 
void
lcd_puts(const char * s)
{
    LCD_RS = 1; // write characters
    while(*s)
        lcd_write(*s++);
}
 
/* write one character to the LCD */
 
void
lcd_putch(char c)
{
    LCD_RS = 1; // write characters
    lcd_write( c );
}
 
 
/*
 * Go to the specified position
 */
 
void
lcd_goto(unsigned char pos)
{
    LCD_RS = 0;
    lcd_write(0x80+pos);
}
    
/* initialise the LCD - put into 4 bit mode */
void
lcd_init()
{
    char init_value;
 
    ADCON1 = 0x06;  // Disable analog pins on PORTA
CMCON=7;//выключаем компараторы 
    init_value = 0x3;
    TRISA=0;
    TRISC=0;
 
    LCD_RS = 0;
    LCD_EN = 0;
    //LCD_RW = 0;
    
    __delay_ms(15); // wait 15mSec after power applied,
    LCD_DATA     = init_value;
    LCD_STROBE();
    __delay_ms(5);
    LCD_STROBE();
    __delay_us(200);
    LCD_STROBE();
    __delay_us(200);
    LCD_DATA = 2;   // Four bit mode
    LCD_STROBE();
 
    lcd_write(0x28); // Set interface length
    lcd_write(0xF); // Display On, Cursor On, Cursor Blink
    lcd_clear();    // Clear screen
    lcd_write(0x6); // Set entry Mode
}

/* write a byte to the LCD in 4 bit mode */
 
extern void lcd_write(unsigned char);
 
/* Clear and home the LCD */
 
extern void lcd_clear(void);
 
/* write a string of characters to the LCD */
 
extern void lcd_puts(const char * s);
 
/* Go to the specified position */
 
extern void lcd_goto(unsigned char pos);
    
/* intialize the LCD - call before anything else */
 
extern void lcd_init(void);
 
extern void lcd_putch(char);
 
/*  Set the cursor position */
 
#define lcd_cursor(x)   lcd_write(((x)&0x7F)|0x80)