lcd.h

12C887 的驱动程序

#ifndef  lcd_h
#define  lcd_h  1

/*************对12864的指令的定义************/
#define LCD_OFF  0x3E //表示LCD关显示
#define LCD_ON   0x3F //表示LCD开显示
#define LCD_X    0xC0 //表示LCD显示的起始行为0,可以通过加一定的数字改变起始行
#define LCD_PAGE 0xB8 //表示LCD显示的页,可以通过加一定的数字改变页数
#define LCD_Y    0x40 //表示LCD显示的列地址
extern unsigned char L_command;
extern unsigned char L_staus;
extern unsigned char L_data;
extern unsigned char R_command;
extern unsigned char R_staus;
extern unsigned char R_data;
#define L_command  (*(volatile unsigned char *) 0x9400)
#define L_staus    (*(volatile unsigned char *) 0x9500)
#define L_data     (*(volatile unsigned char *) 0x9600)
#define R_command  (*(volatile unsigned char *) 0x9800)
#define R_staus    (*(volatile unsigned char *) 0x9900)
#define R_data     (*(volatile unsigned char *) 0x9a00)

extern void  init_devices();
extern void  LCD_Clean();
extern void  LCD_Init();
extern void  display_char(unsigned char*array1,unsigned char*array2,unsigned char zong,unsigned char heng);
extern void  display_chinese(unsigned char*array1,unsigned char*array2,unsigned char zong,unsigned char heng);

#endif