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330

Code Example

lcd.h

#include <msp430.h>

#include "PCF8574.h"

#include "delay.h"

#define clear_display 0x01

#define goto_home 0x02

#define cursor_direction_inc (0x04 | 0x02)

#define cursor_direction_dec (0x04 | 0x00)

#define display_shift (0x04 | 0x01)

#define display_no_shift (0x04 | 0x00)

#define display_on (0x08 | 0x04)

#define display_off (0x08 | 0x02)

#define cursor_on (0x08 | 0x02)

#define cursor_off (0x08 | 0x00)

#define blink_on (0x08 | 0x01)

#define blink_off (0x08 | 0x00)

#define _8_pin_interface (0x20 | 0x10)

#define _4_pin_interface (0x20 | 0x00)

#define _2_row_display (0x20 | 0x08)

#define _1_row_display (0x20 | 0x00)

#define _5x10_dots (0x20 | 0x40)

#define _5x7_dots (0x20 | 0x00)

#define dly 1

#define CMD 0

#define DAT 1

#define BL_ON 1

#define BL_OFF 0

unsigned char bl_state;

unsigned char data_value;

void LCD_init(void);

void LCD_send(unsigned char value, unsigned char control_type);

void LCD_4bit_send(unsigned char lcd_data);

void LCD_putstr(char *lcd_string);

void LCD_putchar(char char_data);

void LCD_clear_home(void);

void LCD_goto(unsigned char x_pos, unsigned char y_pos);

Texas Instruments MSP430 User Manual

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