1602b_lcd.h

AVR单片机 液晶菜单程序 使用的1602B_LCD液晶

/*------------------------------------------------------------------------------*/
/*                      定义MCU与LCD的接口
/*------------------------------------------------------------------------------*/
#define LCD_EN_PORT    PORTC
#define LCD_RS_PORT    PORTC
#define LCD_DATA_PORT  PORTC
#define LCD_DATA_DDR   DDRC

#define LCD_EN         BIT(PC5)   //portC5         out
#define LCD_RS         BIT(PC4)   //portC4         out
#define LCD_DATA       0x0F  //portC3/2/1/0   out

/*------------------------------------------------------------------------
Public function prototypes
------------------------------------------------------------------------*/
void LCD_write_char(unsigned command,unsigned data);
void delay_nus        (unsigned int n);
void delay_nms        (unsigned int n);
void LCD_init         (void);
void LCD_Write_half_char(void);
//void LCD_set_xy         ( unsigned char x, unsigned char y );
void LCD_set_xy( unsigned char address );
//void LCD_write_string   (unsigned char X,unsigned char Y,unsigned char *s);
void LCD_write_string(unsigned char address,unsigned char *s);
//void LCD_write_onechar  (unsigned char X,unsigned char Y,unsigned char data);
void LCD_write_onechar(unsigned char address,unsigned char data);