ATmega128 16핀 LCD 8비트 인터페이스 제어 소스

궁금한 점은 댓글로 남겨주시면 감사하겠습니다

 

	#define F_CPU 16000000UL
	#include "LCD.h"
	#include <avr/io.h>
	#include <util/delay.h>
	void LCD_command(unsigned char command)
	{
	LCD_CONTROL &= ~((1<<EN) | (1<<RS) | (1<<RW));
	_delay_us(1);
	LCD_DATABUS = command;
	LCD_CONTROL |= (1<<EN);
	_delay_us(1);
	LCD_CONTROL &= ~(1<<EN);
	_delay_us(40);
	}
	void LCD_data(unsigned char data)
	{
	LCD_CONTROL &= ~((1<<EN) | (1<<RW));
	LCD_CONTROL |= (1<<RS);
	_delay_us(1);
	LCD_DATABUS = data;
	LCD_CONTROL |= (1<<EN);
	_delay_us(1);
	LCD_CONTROL &= ~(1<<EN);
	_delay_us(40);
	}
	void LCD_string(unsigned char command, char* string)
	{
	LCD_command(command);
	while(*string != '\0')
	{
	LCD_data(*string);
	string++;
	}
	}
	void LCD_init()
	{
	LCD_DATABUS_DDR = 0b11111111;
	LCD_CONTROL_DDR |= ((1<<EN) | (1<<RS) | (1<<RW));
	_delay_us(50);
	LCD_CONTROL |= ((1<<EN) | (1<<RS));
	_delay_us(50);
	LCD_CONTROL &= ~(1<<EN);
	_delay_us(50);
	LCD_command(0x38);
	LCD_command(0x0C);
	LCD_command(0x06);
	LCD_command(0x01);
	_delay_ms(10);
	}

view raw clcd8bit.c hosted with ❤ by GitHub

	#ifndef LCD_H_
	#define LCD_H_
	#define LCD_DATABUS PORTC
	#define LCD_CONTROL PORTA
	#define LCD_DATABUS_DDR DDRC
	#define LCD_CONTROL_DDR DDRA
	#define RS 5
	#define RW 6
	#define EN 7
	void LCD_command(unsigned char command);
	void LCD_data(unsigned char data);
	void LCD_string(unsigned char command, char* string);
	void LCD_init();
	#endif /* LCD_H_ */

view raw clcd8bit.h hosted with ❤ by GitHub