/********************************************/
/* LJD-IV 液晶、鍵盤驅動接口
/* 作者：劉延軍
/* 2007年10月2日
/********************************************/

#ifndef  _LCDKEY_H
#define  _LCDKEY_H

#include <absacc.h>
#include <stdio.h>

/*LCD8255口地址*/
#define LCD8255A        XBYTE[0xA000]     //數據口
#define LCD8255B        XBYTE[0xA001]     //ANSWER
#define LCD8255C        XBYTE[0xA002]     //ASK
#define LCD8255CONTROL  XBYTE[0xA003]     //控制字

/*鍵盤芯片8279接口*/

#define KEY8279COM      XBYTE[0x9801]     //命令狀態口
#define KEY8279DATA     XBYTE[0x9800]     //數據口


/*LCD接口*/
extern void LcdInitialize(void);
extern void LcdDisplayAsc(unsigned char xx,unsigned char yy,unsigned char asc);
//x:04h-13h ,y:00h-39h
extern void LcdDisplayWord(unsigned char xx,unsigned char yy,unsigned char qq,unsigned char ww);
//x:02h-09h ,y:00h-03h
extern void LcdDisplayFloat(unsigned char xx,unsigned char yy,float fdata);
//x:04h-13h ,y:00h-39h
extern void LcdClear(void);
extern void LcdClearSection(unsigned char xx,unsigned char yy);
extern void LcdShiftUp(void);
extern void LcdShiftDown(void);
extern void LcdShiftLeft(void);
extern void LcdShiftRight(void);
extern void LcdDisplayDotBit(unsigned char xx,unsigned char yy);
extern void LcdDisplayDotByte(unsigned char xx,unsigned char yy,unsigned char bt);
/*鍵盤接口*/
extern void KeyInitialize(void);
extern bit KeyPressed(void);
extern unsigned char ReadKey(void);
#endif