88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
#ifndef defines_lcd
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#define defines_lcd
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#include <stdlib.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include "i2c.h"
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// LCD Commands
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// ---------------------------------------------------------------------------
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#define LCD_CLEARDISPLAY 0x01
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#define LCD_RETURNHOME 0x02
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#define LCD_ENTRYMODESET 0x04
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#define LCD_DISPLAYCONTROL 0x08
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#define LCD_CURSORSHIFT 0x10
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#define LCD_FUNCTIONSET 0x20
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#define LCD_SETCGRAMADDR 0x40
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#define LCD_SETDDRAMADDR 0x80
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// flags for display entry mode
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// ---------------------------------------------------------------------------
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#define LCD_ENTRYRIGHT 0x00
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#define LCD_ENTRYLEFT 0x02
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#define LCD_ENTRYSHIFTINCREMENT 0x01
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#define LCD_ENTRYSHIFTDECREMENT 0x00
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// flags for display on/off and cursor control
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// ---------------------------------------------------------------------------
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#define LCD_DISPLAYON 0x04
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#define LCD_DISPLAYOFF 0x00
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#define LCD_CURSORON 0x02
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#define LCD_CURSOROFF 0x00
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#define LCD_BLINKON 0x01
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#define LCD_BLINKOFF 0x00
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// flags for display/cursor shift
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// ---------------------------------------------------------------------------
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#define LCD_DISPLAYMOVE 0x08
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#define LCD_CURSORMOVE 0x00
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#define LCD_MOVERIGHT 0x04
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#define LCD_MOVELEFT 0x00
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// flags for function set
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// ---------------------------------------------------------------------------
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#define LCD_8BITMODE 0x10
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#define LCD_4BITMODE 0x00
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#define LCD_2LINE 0x08
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#define LCD_1LINE 0x00
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#define LCD_5x10DOTS 0x04
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#define LCD_5x8DOTS 0x00
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// Define COMMAND and DATA LCD Rs (used by send method).
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// ---------------------------------------------------------------------------
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#define COMMAND 0
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#define LCD_DATA 1
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#define FOUR_BITS 2
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#define HOME_CLEAR_EXEC 2000
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#define LCD_ADDRESS 0x37
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void lcd_init(uint8_t cols, uint8_t lines);
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void lcd_clear();
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void lcd_home();
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void lcd_setCursor(uint8_t col, uint8_t row);
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void lcd_write(uint8_t value);
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void lcd_createChar(uint8_t location, const char *charmap);
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void lcd_noDisplay() ;
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void lcd_display() ;
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void lcd_noCursor() ;
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void lcd_cursor() ;
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void lcd_noBlink() ;
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void lcd_blink() ;
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void lcd_scrollDisplayLeft(void) ;
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void lcd_scrollDisplayRight(void) ;
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void lcd_moveCursorRight(void);
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void lcd_moveCursorLeft(void);
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void lcd_leftToRight(void) ;
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void lcd_rightToLeft(void) ;
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void lcd_autoscroll(void) ;
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void lcd_noAutoscroll(void);
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#endif
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