lcd12864.h

very useful to pactising ps2 keyboard

#define DataLine P0                                     //P0为数据线

sbit BUSY=P0^7;                                         //忙信号
sbit E  = P2^5;                                         //使能信号
sbit RW = P2^6;                                         //读写信号
sbit DI = P2^7;                                         //数据/指令输入
sbit CSA = P2^3;                                        //左半屏使能
sbit CSB = P2^4;                                        //右半屏使能

unsigned char Rddata( void );                           //读数据函数
unsigned char read_dat_L( void );                       //读左屏数据
unsigned char read_dat_R( void );                       //读右屏数据


void lcd_init( void );                                  //初始化
void lcd_clr( void );                                   //清屏
void write_cmd_L( unsigned char );			//写左屏指令
void write_cmd_R( unsigned char );			//写右屏指令
void write_dat_L( unsigned char );			//写左屏数据
void write_dat_R( unsigned char );			//写右屏数据

void Disp_Img(unsigned char code *img);                                          //显示图片
void lcd_image12816_dis(unsigned char m,unsigned char code *img);                // y为起始页
void hz_disp( unsigned char, unsigned char, unsigned char *hz );                 // 汉字显示,16×16
void lcd_putchar12x16( unsigned char x, unsigned char y, unsigned char *hz );    // 汉字显示,12×16
void lcd_putchar_shuzu12x16( unsigned char x,unsigned char y,unsigned char ch );  //显示汉字，汉字以数组形势存放 
void lcd_xingqi_dis12x16( unsigned char x, unsigned char y, unsigned char num );   //为显示星期时用
void lcd_putchar5x16( unsigned char x,unsigned char y,unsigned char *ch );       // 显示数字0-9
void biankuang_display();                                                        // 显示边框的函数,显示全部静态画面
void lcd_biankuang5x16( unsigned char x,unsigned char y,unsigned char ch );      // 显示数字0-9,里面加上了边框的数据