lcd.h

该程序可以在LCD1602上实现字符的显示功能,

#define LCDPORT PORTD
#define RSCLR   RE0=0
#define RSSET   RE0=1
#define RWCLR   RE1=0
#define RWSET   RE1=1	
#define ENCLR   RE2=0
#define ENSET   RE2=1


extern  void delay(unsigned int t);
extern  void write_lcd_command(unsigned char com);
extern  void write_lcd_data(unsigned char data);
extern  void lcd_init(void);
extern  void lcd_display(unsigned char x,unsigned char y,const unsigned char *str);