lcd1602.h

LCD1602B的最详细的4线驱动方法.内部包含CGRAM的操作.汉字已经自定义图像的显示.闪烁显示等等.

#ifndef __LCD1602__H__
#define __LCD1602__H__

#include <avr/io.h> 
#include <util/delay.h>
#include <avr/eeprom.h>
#include <avr/pgmspace.h>

#define LCD_EN_PORT    PORTA 
#define LCD_EN_DDR     DDRA 
#define LCD_RS_PORT    PORTA 
#define LCD_RS_DDR     DDRA 
#define LCD_DATA_PORT  PORTA 
#define LCD_DATA_DDR   DDRA 
#define LCD_DATA_PIN   PINA 
#define LCD_RS		   0x04
#define LCD_EN         0x08
#define LCD_DATA       0xf0

#define LCD1602Clear()	LCD1602Write(0,0x01)	//清屏 

extern void LCD1602Init(void); 
extern void LCD1602WriteEN(void); 
extern void LCD1602Write(unsigned char loworhigh,unsigned  char command); 
extern void LCD1602SetXY(unsigned char x, unsigned char y); 
extern void LCD1602WriteString(unsigned char X,unsigned char Y,unsigned char *s); 
extern void LCD1602WriteChar(unsigned char X,unsigned char Y,unsigned char data); 
extern void LCD1602WriteCGRAM(unsigned char num,unsigned char *ptr);


#endif