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Diffstat (limited to 'drivers/avr/hd44780.h')
| -rw-r--r-- | drivers/avr/hd44780.h | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/drivers/avr/hd44780.h b/drivers/avr/hd44780.h deleted file mode 100644 index 08e60f8a44..0000000000 --- a/drivers/avr/hd44780.h +++ /dev/null @@ -1,348 +0,0 @@ -/************************************************************************* - Title : C include file for the HD44780U LCD library (lcd.c) - Author: Peter Fleury <pfleury@gmx.ch> http://tinyurl.com/peterfleury - License: GNU General Public License Version 3 - File: $Id: lcd.h,v 1.14.2.4 2015/01/20 17:16:07 peter Exp $ - Software: AVR-GCC 4.x - Hardware: any AVR device, memory mapped mode only for AVR with - memory mapped interface (AT90S8515/ATmega8515/ATmega128) -***************************************************************************/ - -/** - @mainpage - Collection of libraries for AVR-GCC - @author Peter Fleury pfleury@gmx.ch http://tinyurl.com/peterfleury - @copyright (C) 2015 Peter Fleury, GNU General Public License Version 3 - - @file - @defgroup pfleury_lcd LCD library <lcd.h> - @code #include <lcd.h> @endcode - - @brief Basic routines for interfacing a HD44780U-based character LCD display - - LCD character displays can be found in many devices, like espresso machines, laser printers. - The Hitachi HD44780 controller and its compatible controllers like Samsung KS0066U have become an industry standard for these types of displays. - - This library allows easy interfacing with a HD44780 compatible display and can be - operated in memory mapped mode (LCD_IO_MODE defined as 0 in the include file lcd.h.) or in - 4-bit IO port mode (LCD_IO_MODE defined as 1). 8-bit IO port mode is not supported. - - Memory mapped mode is compatible with old Kanda STK200 starter kit, but also supports - generation of R/W signal through A8 address line. - - @see The chapter <a href=" http://homepage.hispeed.ch/peterfleury/avr-lcd44780.html" target="_blank">Interfacing a HD44780 Based LCD to an AVR</a> - on my home page, which shows example circuits how to connect an LCD to an AVR controller. - - @author Peter Fleury pfleury@gmx.ch http://tinyurl.com/peterfleury - - @version 2.0 - - @copyright (C) 2015 Peter Fleury, GNU General Public License Version 3 - -*/ - -#pragma once - -#include <inttypes.h> -#include <avr/pgmspace.h> - -#if (__GNUC__ * 100 + __GNUC_MINOR__) < 405 -# error "This library requires AVR-GCC 4.5 or later, update to newer AVR-GCC compiler !" -#endif - -/**@{*/ - -/* - * LCD and target specific definitions below can be defined in a separate include file with name lcd_definitions.h instead modifying this file - * by adding -D_LCD_DEFINITIONS_FILE to the CDEFS section in the Makefile - * All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h - */ -#ifdef _LCD_DEFINITIONS_FILE -# include "lcd_definitions.h" -#endif - -/** - * @name Definition for LCD controller type - * Use 0 for HD44780 controller, change to 1 for displays with KS0073 controller. - */ -#ifndef LCD_CONTROLLER_KS0073 -# define LCD_CONTROLLER_KS0073 0 /**< Use 0 for HD44780 controller, 1 for KS0073 controller */ -#endif - -/** - * @name Definitions for Display Size - * Change these definitions to adapt setting to your display - * - * These definitions can be defined in a separate include file \b lcd_definitions.h instead modifying this file by - * adding -D_LCD_DEFINITIONS_FILE to the CDEFS section in the Makefile. - * All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h - * - */ -#ifndef LCD_LINES -# define LCD_LINES 2 /**< number of visible lines of the display */ -#endif -#ifndef LCD_DISP_LENGTH -# define LCD_DISP_LENGTH 16 /**< visibles characters per line of the display */ -#endif -#ifndef LCD_LINE_LENGTH -# define LCD_LINE_LENGTH 0x40 /**< internal line length of the display */ -#endif -#ifndef LCD_START_LINE1 -# define LCD_START_LINE1 0x00 /**< DDRAM address of first char of line 1 */ -#endif -#ifndef LCD_START_LINE2 -# define LCD_START_LINE2 0x40 /**< DDRAM address of first char of line 2 */ -#endif -#ifndef LCD_START_LINE3 -# define LCD_START_LINE3 0x14 /**< DDRAM address of first char of line 3 */ -#endif -#ifndef LCD_START_LINE4 -# define LCD_START_LINE4 0x54 /**< DDRAM address of first char of line 4 */ -#endif -#ifndef LCD_WRAP_LINES -# define LCD_WRAP_LINES 0 /**< 0: no wrap, 1: wrap at end of visibile line */ -#endif - -/** - * @name Definitions for 4-bit IO mode - * - * The four LCD data lines and the three control lines RS, RW, E can be on the - * same port or on different ports. - * Change LCD_RS_PORT, LCD_RW_PORT, LCD_E_PORT if you want the control lines on - * different ports. - * - * Normally the four data lines should be mapped to bit 0..3 on one port, but it - * is possible to connect these data lines in different order or even on different - * ports by adapting the LCD_DATAx_PORT and LCD_DATAx_PIN definitions. - * - * Adjust these definitions to your target.\n - * These definitions can be defined in a separate include file \b lcd_definitions.h instead modifying this file by - * adding \b -D_LCD_DEFINITIONS_FILE to the \b CDEFS section in the Makefile. - * All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h - * - */ -#define LCD_IO_MODE 1 /**< 0: memory mapped mode, 1: IO port mode */ - -#if LCD_IO_MODE - -# ifndef LCD_PORT -# define LCD_PORT PORTA /**< port for the LCD lines */ -# endif -# ifndef LCD_DATA0_PORT -# define LCD_DATA0_PORT LCD_PORT /**< port for 4bit data bit 0 */ -# endif -# ifndef LCD_DATA1_PORT -# define LCD_DATA1_PORT LCD_PORT /**< port for 4bit data bit 1 */ -# endif -# ifndef LCD_DATA2_PORT -# define LCD_DATA2_PORT LCD_PORT /**< port for 4bit data bit 2 */ -# endif -# ifndef LCD_DATA3_PORT -# define LCD_DATA3_PORT LCD_PORT /**< port for 4bit data bit 3 */ -# endif -# ifndef LCD_DATA0_PIN -# define LCD_DATA0_PIN 4 /**< pin for 4bit data bit 0 */ -# endif -# ifndef LCD_DATA1_PIN -# define LCD_DATA1_PIN 5 /**< pin for 4bit data bit 1 */ -# endif -# ifndef LCD_DATA2_PIN -# define LCD_DATA2_PIN 6 /**< pin for 4bit data bit 2 */ -# endif -# ifndef LCD_DATA3_PIN -# define LCD_DATA3_PIN 7 /**< pin for 4bit data bit 3 */ -# endif -# ifndef LCD_RS_PORT -# define LCD_RS_PORT LCD_PORT /**< port for RS line */ -# endif -# ifndef LCD_RS_PIN -# define LCD_RS_PIN 3 /**< pin for RS line */ -# endif -# ifndef LCD_RW_PORT -# define LCD_RW_PORT LCD_PORT /**< port for RW line */ -# endif -# ifndef LCD_RW_PIN -# define LCD_RW_PIN 2 /**< pin for RW line */ -# endif -# ifndef LCD_E_PORT -# define LCD_E_PORT LCD_PORT /**< port for Enable line */ -# endif -# ifndef LCD_E_PIN -# define LCD_E_PIN 1 /**< pin for Enable line */ -# endif - -#elif defined(__AVR_AT90S4414__) || defined(__AVR_AT90S8515__) || defined(__AVR_ATmega64__) || defined(__AVR_ATmega8515__) || defined(__AVR_ATmega103__) || defined(__AVR_ATmega128__) || defined(__AVR_ATmega161__) || defined(__AVR_ATmega162__) -/* - * memory mapped mode is only supported when the device has an external data memory interface - */ -# define LCD_IO_DATA 0xC000 /* A15=E=1, A14=RS=1 */ -# define LCD_IO_FUNCTION 0x8000 /* A15=E=1, A14=RS=0 */ -# define LCD_IO_READ 0x0100 /* A8 =R/W=1 (R/W: 1=Read, 0=Write */ - -#else -# error "external data memory interface not available for this device, use 4-bit IO port mode" - -#endif - -/** - * @name Definitions of delays - * Used to calculate delay timers. - * Adapt the F_CPU define in the Makefile to the clock frequency in Hz of your target - * - * These delay times can be adjusted, if some displays require different delays.\n - * These definitions can be defined in a separate include file \b lcd_definitions.h instead modifying this file by - * adding \b -D_LCD_DEFINITIONS_FILE to the \b CDEFS section in the Makefile. - * All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h - */ -#ifndef LCD_DELAY_BOOTUP -# define LCD_DELAY_BOOTUP 16000 /**< delay in micro seconds after power-on */ -#endif -#ifndef LCD_DELAY_INIT -# define LCD_DELAY_INIT 5000 /**< delay in micro seconds after initialization command sent */ -#endif -#ifndef LCD_DELAY_INIT_REP -# define LCD_DELAY_INIT_REP 64 /**< delay in micro seconds after initialization command repeated */ -#endif -#ifndef LCD_DELAY_INIT_4BIT -# define LCD_DELAY_INIT_4BIT 64 /**< delay in micro seconds after setting 4-bit mode */ -#endif -#ifndef LCD_DELAY_BUSY_FLAG -# define LCD_DELAY_BUSY_FLAG 4 /**< time in micro seconds the address counter is updated after busy flag is cleared */ -#endif -#ifndef LCD_DELAY_ENABLE_PULSE -# define LCD_DELAY_ENABLE_PULSE 1 /**< enable signal pulse width in micro seconds */ -#endif - -/** - * @name Definitions for LCD command instructions - * The constants define the various LCD controller instructions which can be passed to the - * function lcd_command(), see HD44780 data sheet for a complete description. - */ - -/* instruction register bit positions, see HD44780U data sheet */ -#define LCD_CLR 0 /* DB0: clear display */ -#define LCD_HOME 1 /* DB1: return to home position */ -#define LCD_ENTRY_MODE 2 /* DB2: set entry mode */ -#define LCD_ENTRY_INC 1 /* DB1: 1=increment, 0=decrement */ -#define LCD_ENTRY_SHIFT 0 /* DB2: 1=display shift on */ -#define LCD_ON 3 /* DB3: turn lcd/cursor on */ -#define LCD_ON_DISPLAY 2 /* DB2: turn display on */ -#define LCD_ON_CURSOR 1 /* DB1: turn cursor on */ -#define LCD_ON_BLINK 0 /* DB0: blinking cursor ? */ -#define LCD_MOVE 4 /* DB4: move cursor/display */ -#define LCD_MOVE_DISP 3 /* DB3: move display (0-> cursor) ? */ -#define LCD_MOVE_RIGHT 2 /* DB2: move right (0-> left) ? */ -#define LCD_FUNCTION 5 /* DB5: function set */ -#define LCD_FUNCTION_8BIT 4 /* DB4: set 8BIT mode (0->4BIT mode) */ -#define LCD_FUNCTION_2LINES 3 /* DB3: two lines (0->one line) */ -#define LCD_FUNCTION_10DOTS 2 /* DB2: 5x10 font (0->5x7 font) */ -#define LCD_CGRAM 6 /* DB6: set CG RAM address */ -#define LCD_DDRAM 7 /* DB7: set DD RAM address */ -#define LCD_BUSY 7 /* DB7: LCD is busy */ - -/* set entry mode: display shift on/off, dec/inc cursor move direction */ -#define LCD_ENTRY_DEC 0x04 /* display shift off, dec cursor move dir */ -#define LCD_ENTRY_DEC_SHIFT 0x05 /* display shift on, dec cursor move dir */ -#define LCD_ENTRY_INC_ 0x06 /* display shift off, inc cursor move dir */ -#define LCD_ENTRY_INC_SHIFT 0x07 /* display shift on, inc cursor move dir */ - -/* display on/off, cursor on/off, blinking char at cursor position */ -#define LCD_DISP_OFF 0x08 /* display off */ -#define LCD_DISP_ON 0x0C /* display on, cursor off */ -#define LCD_DISP_ON_BLINK 0x0D /* display on, cursor off, blink char */ -#define LCD_DISP_ON_CURSOR 0x0E /* display on, cursor on */ -#define LCD_DISP_ON_CURSOR_BLINK 0x0F /* display on, cursor on, blink char */ - -/* move cursor/shift display */ -#define LCD_MOVE_CURSOR_LEFT 0x10 /* move cursor left (decrement) */ -#define LCD_MOVE_CURSOR_RIGHT 0x14 /* move cursor right (increment) */ -#define LCD_MOVE_DISP_LEFT 0x18 /* shift display left */ -#define LCD_MOVE_DISP_RIGHT 0x1C /* shift display right */ - -/* function set: set interface data length and number of display lines */ -#define LCD_FUNCTION_4BIT_1LINE 0x20 /* 4-bit interface, single line, 5x7 dots */ -#define LCD_FUNCTION_4BIT_2LINES 0x28 /* 4-bit interface, dual line, 5x7 dots */ -#define LCD_FUNCTION_8BIT_1LINE 0x30 /* 8-bit interface, single line, 5x7 dots */ -#define LCD_FUNCTION_8BIT_2LINES 0x38 /* 8-bit interface, dual line, 5x7 dots */ - -#define LCD_MODE_DEFAULT ((1 << LCD_ENTRY_MODE) | (1 << LCD_ENTRY_INC)) - -/** - * @name Functions - */ - -/** - @brief Initialize display and select type of cursor - @param dispAttr \b LCD_DISP_OFF display off\n - \b LCD_DISP_ON display on, cursor off\n - \b LCD_DISP_ON_CURSOR display on, cursor on\n - \b LCD_DISP_ON_CURSOR_BLINK display on, cursor on flashing - @return none -*/ -extern void lcd_init(uint8_t dispAttr); - -/** - @brief Clear display and set cursor to home position - @return none -*/ -extern void lcd_clrscr(void); - -/** - @brief Set cursor to home position - @return none -*/ -extern void lcd_home(void); - -/** - @brief Set cursor to specified position - - @param x horizontal position\n (0: left most position) - @param y vertical position\n (0: first line) - @return none -*/ -extern void lcd_gotoxy(uint8_t x, uint8_t y); - -/** - @brief Display character at current cursor position - @param c character to be displayed - @return none -*/ -extern void lcd_putc(char c); - -/** - @brief Display string without auto linefeed - @param s string to be displayed - @return none -*/ -extern void lcd_puts(const char *s); - -/** - @brief Display string from program memory without auto linefeed - @param progmem_s string from program memory be be displayed - @return none - @see lcd_puts_P -*/ -extern void lcd_puts_p(const char *progmem_s); - -/** - @brief Send LCD controller instruction command - @param cmd instruction to send to LCD controller, see HD44780 data sheet - @return none -*/ -extern void lcd_command(uint8_t cmd); - -/** - @brief Send data byte to LCD controller - - Similar to lcd_putc(), but without interpreting LF - @param data byte to send to LCD controller, see HD44780 data sheet - @return none -*/ -extern void lcd_data(uint8_t data); - -/** - @brief macros for automatically storing string constant in program memory -*/ -#define lcd_puts_P(__s) lcd_puts_p(PSTR(__s)) - -/**@}*/ |