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29 * Copyright 2005 Develer S.r.l. (http://www.develer.com/)
33 * \brief Hitachi HD44780 and clones LCD module (interface)
36 * \author Bernardo Innocenti <bernie@develer.com>
37 * \author Stefano Fedrigo <aleph@develer.com>
40 #ifndef DRV_LCD_HD44_H
41 #define DRV_LCD_HD44_H
43 #include <appconfig.h>
44 #include <cfg/compiler.h> /* For stdint types */
47 * \name Display dimensions (in chars)
55 * \name Hitachi HD44 commands.
58 #define LCD_CMD_DISPLAY_INI 0x30
61 #define LCD_CMD_SETFUNC 0x28 /**< 4 bits, 2 lines, 5x7 dots */
63 #define LCD_CMD_SETFUNC 0x38 /**< 8 bits, 2 lines, 5x7 dots */
66 #define LCD_CMD_DISPLAY_ON 0x0F /**< Switch on display */
67 #define LCD_CMD_DISPLAY_OFF 0x08 /**< Switch off display */
68 #define LCD_CMD_CLEAR 0x01 /**< Clear display */
69 #define LCD_CMD_CURSOR_BLOCK 0x0D /**< Show cursor (block) */
70 #define LCD_CMD_CURSOR_LINE 0x0F /**< Show cursor (line) */
71 #define LCD_CMD_CURSOR_OFF 0x0C /**< Hide cursor */
72 #define LCD_CMD_DISPLAYMODE 0x06
73 #define LCD_CMD_SET_CGRAMADDR 0x40
74 #define LCD_CMD_RESET_DDRAM 0x80
75 #define LCD_CMD_SET_DDRAMADDR 0x80
76 #define LCD_CMD_DISPLAY_SHIFT 0x18
77 #define LCD_CMD_MOVESHIFT_LEFT 0x00
78 #define LCD_CMD_MOVESHIFT_RIGHT 0x04
81 /** Type for combined LCD cursor position (x,y). */
82 typedef uint8_t lcdpos_t;
84 void lcd_waitBusy(void);
85 void lcd_moveTo(uint8_t addr);
86 void lcd_setReg(uint8_t val);
87 void lcd_putc(uint8_t a, uint8_t c);
88 void lcd_remapChar(const char *glyph, char code);
89 void lcd_hw_init(void);
90 void lcd_hw_test(void);
92 #endif /* DRV_LCD_HD44_H */