lcd.h

本程序是练习lcd16*2的使用,其中的一些基本的函数可以供其他实用该型号的器件的时候所调用.

#define Twoline_8bit  56
#define  CLEAR 1
#define  CURSOR_HOME 2
#define  CURSOR_LEFT 4
#define  CURSOR_RIGHT  6
#define  CURSOR_OFF  12
#define  CURSOR_ON 14
#define  CURSOR_BLINK 15
#define  GOTO_LINE_2  192
#define   GOTO_LINE_1  128
/*lcd control lines*/
#define  ENABLE 1
#define  DISABLE 0
#define  READ  0
#define  WRITE 0
#define  COMMAND 0
#define  DATA 1
#define   rs P3_5
#define  rw   P3_4
#define  enable  P3_3
void  delay100us(unsigned);
void  write_LCD_command(unsigned);
void  write_LCD_data(unsigned);
void   init_LCD(void);
void  clear_LCD(void);
void display_LCD_string(char *);
void  gotoxy(unsigned,unsigned);
void  display_LCD_number(char);