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lib_lcd.h
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lib_lcd.h
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/*
* File name: lib_lcd.h
* Date first: 12/31/2017
* Date last: 08/07/2019
*
* Description: Library for Hitachi HD44780 LCD on STM8 architecture.
*
* Author: Richard Hodges
*
* Copyright (C) 2017, 2018 Richard Hodges. All rights reserved.
* Permission is hereby granted for any use.
*
******************************************************************************
*
* Initialize LCD
*/
void lcd_init(void);
/*
* Set LCD cursor position by line and column
* in: line (0-3), column (0-19)
*/
void lcd_curs(char, char);
/*
* Write character to LCD (and alias function)
*/
void lcd_putc(char);
/*
* Write string to LCD (zero terminated)
*/
void lcd_puts(char *);
/*
* Following addition contributed by jackkum <[email protected]> August 2019
*/
/*
* Clear lcd
*/
void lcd_clear(void);
/*
* Mode of lcd
*/
void lcd_mode(char mode);
// commands
#define LCD_CLEARDISPLAY 0x01
#define LCD_RETURNHOME 0x02
#define LCD_ENTRYMODESET 0x04
#define LCD_DISPLAYCONTROL 0x08
#define LCD_CURSORSHIFT 0x10
#define LCD_FUNCTIONSET 0x20
#define LCD_SETCGRAMADDR 0x40
#define LCD_SETDDRAMADDR 0x80
// flags for display entry mode
#define LCD_ENTRYRIGHT 0x00
#define LCD_ENTRYLEFT 0x02
#define LCD_ENTRYSHIFTINCREMENT 0x01
#define LCD_ENTRYSHIFTDECREMENT 0x00
// flags for display on/off control
#define LCD_DISPLAYON 0x04
#define LCD_DISPLAYOFF 0x00
#define LCD_CURSORON 0x02
#define LCD_CURSOROFF 0x00
#define LCD_BLINKON 0x01
#define LCD_BLINKOFF 0x00
// flags for display/cursor shift
#define LCD_DISPLAYMOVE 0x08
#define LCD_CURSORMOVE 0x00
#define LCD_MOVERIGHT 0x04
#define LCD_MOVELEFT 0x00
// flags for function set
#define LCD_8BITMODE 0x10
#define LCD_4BITMODE 0x00
#define LCD_2LINE 0x08
#define LCD_1LINE 0x00
#define LCD_5x10DOTS 0x04
#define LCD_5x8DOTS 0x00