//сегментное отображение цифр и букв
#define CharA 0x7E
#define CharC 0x0F
#define CharE 0x2F
#define CharF 0x2E
#define CharU 0x57
#define CharP 0x3E
#define Charb 0x67
#define Chard 0x73
#define Charh 0x66
#define Charn 0x62
#define Charo 0x63
#define Charu 0x43
#define Charr 0x22
#define Chart 0x27


#define Dot 0x80



#define Minus 0x20
#define Dig0 0x5F
#define Dig1 0x50
#define Dig2 0x3B
#define Dig3 0x79
#define Dig4 0x74
#define Dig5 0x6D
#define Dig6 0x6F
#define Dig7 0x58
#define Dig8 0x7F
#define Dig9 0x7D

#ifndef LCD_H
#define LCD_H

#include "htc.h"

#ifndef _XTAL_FREQ
#define _XTAL_FREQ 8000000
#endif //#ifndef _XTAL_FREQ

#define LCD_RS RA4
#define RS_TRIS TRISA4
#define LCD_RW RA6
#define RW_TRIS TRISA6
#define LCD_EN RA7
#define E_TRIS TRISA7

#define D4_PIN RA0
#define D4_TRIS TRISA0
#define D5_PIN RA1
#define D5_TRIS TRISA1
#define D6_PIN RA2
#define D6_TRIS TRISA2
#define D7_PIN RA3
#define D7_TRIS TRISA3

#define   LCD_STROBE ((LCD_EN = 1),(LCD_EN = 1),(LCD_EN = 0),(LCD_EN = 0))

void LCD_Init (void);
void LCD_WriteData (char DataToWrite);
void LCD_WriteCommand (char DataToWrite);
void LCD_WriteStr1 (char * StringToWrite);
void LCD_WriteStr2 (char * StringToWrite);
void LCD_ClearAndHome (void);

#endif //#define LCD_H

#include "lcd.h"

#define PIN_INPUT 1
#define PIN_OUTPUT !PIN_INPUT

void LCD_SetupPins (void);
void LCD_PutByte (char ByteToPut, char Data_nCommand);
void LCD_PutNibble (char RightAlignedNibble);
void LCD_WriteString (char * StringToWrite);

void LCD_SetupPins (void)
{
    RS_TRIS = 0;
    RW_TRIS = 0;
    E_TRIS = 0;

    D4_TRIS = 0;
    D5_TRIS = 0;
    D6_TRIS = 0;
    D7_TRIS = 0;
}

void LCD_Init (void)
{
    LCD_SetupPins ();

    __delay_ms(50);
    LCD_RS = 0;
    LCD_EN = 0;
    LCD_RW   = 0;
    LCD_PutNibble (0x3);
    __delay_ms(5);
    LCD_PutNibble (0x3);
    __delay_us(100);
    LCD_PutNibble (0x3);
    __delay_us(100);
    LCD_PutNibble (0x2);
    __delay_ms(5);
    LCD_WriteCommand (0x28); //Write 28 hex (4-Bits, 2-lines)
    LCD_WriteCommand (0x08); //Write 08 hex (don't shift display, hide cursor)
    LCD_WriteCommand (0x01); //Write 01 hex (clear and home display)
    LCD_WriteCommand (0x06); //Write 06 hex (move cursor right)
    LCD_WriteCommand (0x0C); //Write 0C hex (turn on display)

    //Display is ready to accept data.
}

void LCD_PutNibble (char RightAlignedNibble)
{
    D4_PIN = (RightAlignedNibble & 1)?1:0;
    D5_PIN = (RightAlignedNibble & 2)?1:0;
    D6_PIN = (RightAlignedNibble & 4)?1:0;
    D7_PIN = (RightAlignedNibble & 8)?1:0;
    LCD_STROBE;
}

void LCD_PutByte (char ByteToPut, char Data_nCommand)
{
    LCD_EN = 0;
    LCD_RS = Data_nCommand;
    LCD_PutNibble(ByteToPut >> 4);
    __delay_us(100);
    LCD_PutNibble(ByteToPut & 0x0F);
    __delay_us(100);
}

void LCD_WriteData (char DataToWrite)
{
    LCD_PutByte (DataToWrite, 1);
}

void LCD_WriteCommand (char CommandToWrite)
{
    LCD_PutByte (CommandToWrite, 0);
    __delay_ms(5);
}

void LCD_WriteString (char * StringToWrite)
{
    while (*StringToWrite)
        LCD_WriteData (*StringToWrite++);
}

void LCD_WriteStr1 (char * StringToWrite)
{
    LCD_WriteCommand (0x80); //Moves cursor to first address on the left of LINE 1
    LCD_WriteString (StringToWrite);
}

void LCD_WriteStr2 (char * StringToWrite)
{
    LCD_WriteCommand (0xC0); //Moves cursor to first address on the left of LINE 2
    LCD_WriteString (StringToWrite);
}

void LCD_ClearAndHome (void)
{
    LCD_WriteCommand (0x01);
}