96 lines
3.5 KiB
C
96 lines
3.5 KiB
C
|
/* avrmb2313_lcd.h
|
|||
|
|
* V 1.0 by (Hr & RJH-Systems) @ (FLG)
|
|||
|
|
* 30.03.07
|
|||
|
|
* Zum Ansteuern eines zweizeiligen LCD-Displays
|
|||
|
|
* Hitachi 44780 od. KS0070B
|
|||
|
|
* auf dem AVR-evaluationsboard von Matze Brenner
|
|||
|
|
* > www.flg-informatik.de
|
|||
|
|
* 8-bit Mode
|
|||
|
|
* 4-bit Mode
|
|||
|
|
*/
|
|||
|
|
#ifndef avrmb2313_lcd
|
|||
|
|
#define avrmb2313_lcd
|
|||
|
|
#include <inttypes.h>
|
|||
|
|
/* Some ports must be definded first, dont touch these for avrmb2313-project
|
|||
|
|
* but set for other Designs using other out-Ports
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
|
|||
|
|
#ifndef lcd_bus4
|
|||
|
|
#ifndef lcd_bus8
|
|||
|
|
#define lcd_bus4 //defaults to 4-Bit
|
|||
|
|
#endif
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
#ifndef lcd_dataports_defined
|
|||
|
|
#define lcd_dataports_defined
|
|||
|
|
#include <avr/io.h>
|
|||
|
|
#define lcd_dataport PORTB
|
|||
|
|
#define lcd_dataport_DDR DDRB // DataDirectionRegister f<>r lcd_datatport
|
|||
|
|
//#ifdef lcd_bus8
|
|||
|
|
#define lcd_dataport_mask 0xf0 // which bits in that port (8-bit = 0xff for 8-bit operation)
|
|||
|
|
//#else
|
|||
|
|
// #define lcd_dataport_mask 0xf0 // which bits in that port (4-bit = 0xf0 for 4-bit operation)
|
|||
|
|
// #endif
|
|||
|
|
#define set_lcd_RS_DDR DDRD=(DDRD | ((uint8_t) 0x08)) // Dir-Out f<>r lcd _RS setzen)
|
|||
|
|
#define set_lcd_E_DDR DDRD=(DDRD | ((uint8_t) 0x04)) // Dir-Out f<>r lcd _E setzen)
|
|||
|
|
#define set_lcd_RS PORTD=(PORTD | ((uint8_t) 0x08)) // Bit f<>r lcd _RS setzen)
|
|||
|
|
#define unset_lcd_RS PORTD=(PORTD & ~((uint8_t) 0x08)) // Bit f<>r lcd _RS l<>schen)
|
|||
|
|
#define set_lcd_E PORTD=(PORTD | ((uint8_t) 0x04)) // Bit f<>r lcd _E setzen)
|
|||
|
|
#define unset_lcd_E PORTD=(PORTD & ~((uint8_t) 0x04)) // Bit f<>r lcd _E l<>schen)
|
|||
|
|
#
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
|
|||
|
|
extern void wait_100us(void); // This function must be implemented
|
|||
|
|
// Bitte eine Funktion "void wait_100us()" implementieren, die 100us wartet
|
|||
|
|
// Please implement function "void wait_100us()": just waiting 100*10^(-6) s
|
|||
|
|
extern void lcd_init(void);
|
|||
|
|
extern void lcd_write(uint8_t lcd_whichwrite, uint8_t zeichen, uint8_t position);
|
|||
|
|
enum lcd_whichwrite{here, therepos, line1, line2, instruct, preinstruct};
|
|||
|
|
extern void lcd_blank_line(uint8_t lcd_whichwrite); // line1, line2, instruct=all
|
|||
|
|
extern void lcd_instruct(uint8_t zeichen);
|
|||
|
|
/* possible "zeichen":
|
|||
|
|
lcd_DISPLAY_CLEAR
|
|||
|
|
lcd_RETURN_HOME
|
|||
|
|
lcd_ENTRY_MODE_SET_INCREASE
|
|||
|
|
lcd_ENTRY_MODE_SET_DECREASE
|
|||
|
|
lcd_ENTRY_MODE_SET_DISPLAY_SHIFTED
|
|||
|
|
lcd_ENTRY_MS_DISPLAY_NOT_S hifted
|
|||
|
|
*/
|
|||
|
|
extern void lcd_5ms(); //based on wait_100us
|
|||
|
|
extern void lcd_1s(); //based on wait_100us
|
|||
|
|
// Die Konstanten des lcd-Kontrollers local
|
|||
|
|
#define lcd_DISPLAY_CLEAR 0b00000001
|
|||
|
|
#define lcd_RETURN_HOME 0b00000010
|
|||
|
|
#define lcd_ENTRY_MODE_SET 0b00000100
|
|||
|
|
#define lcd_ENTRY_MODE_SET_INCREASE 0b00000110
|
|||
|
|
#define lcd_ENTRY_MODE_SET_DECREASE 0b00000100
|
|||
|
|
#define lcd_ENTRY_MODE_SET_DISPLAY_SHIFTED 0b00000101
|
|||
|
|
#define lcd_ENTRY_MS_DISPLAY_NOT_S 0b00000100
|
|||
|
|
#define lcd_DISPLAY_OO 0b00001000
|
|||
|
|
#define lcd_DISPLAY_OO_ON 0b00001100
|
|||
|
|
#define lcd_DISPLAY_OO_OFF 0b00001000
|
|||
|
|
#define lcd_DISPLAY_OO_CURSOR_ON 0b00001010
|
|||
|
|
#define lcd_DISPLAY_OO_CURSOR_OFF 0b00001000
|
|||
|
|
#define lcd_DISPLAY_OO_BLINKING_ON 0b00001001
|
|||
|
|
#define lcd_DISPLAY_OO_BLINKING_OFF 0b00001000
|
|||
|
|
#define lcd_SHIFT 0b00010000
|
|||
|
|
#define lcd_SHIFT_DISPLAY_SHIFT 0b00011000
|
|||
|
|
#define lcd_SHIFT_CURSOR_MOVE 0b00010000
|
|||
|
|
#define lcd_SHIFT_RIGHT_SHIFT 0b00010100
|
|||
|
|
#define lcd_SHIFT_LEFT_SHIFT 0b00010000
|
|||
|
|
#define lcd_SET_FUNCTION 0b00100000
|
|||
|
|
#define lcd_SET_FUNCTION_8BIT 0b00110000
|
|||
|
|
#define lcd_SET_FUNCTION_4BIT 0b00100000
|
|||
|
|
#define lcd_SET_FUNCTION_2LINE 0b00101000
|
|||
|
|
#define lcd_SET_FUNCTION_1LINE 0b00100000
|
|||
|
|
#define lcd_SET_FUNCTION_5X10 0b00100100
|
|||
|
|
#define lcd_SET_FUNCTION_7X5 0b00100000
|
|||
|
|
#define lcd_SET_CG_RAM 0b01000000
|
|||
|
|
#define lcd_SET_DD_RAM 0b10000000
|
|||
|
|
|
|||
|
|
|
|||
|
|
#endif
|
|||
|
|
|