#define rs (1<<8)
#define rw (1<<9)
#define en (1<<10)
#define busy (1<<7)
void ChkBusy(void);
void LCDCls(void);
void LCDcmd(uint8 cmd);
void LCDsetxy(uint8 x,uint8 y);
void LCDgohome(void);
void LCDWrdata(uint8 dat);
void LCDinit(void);
void DisplayText(uint8 x,uint8 y,uint8 *p);
void ShowInt(uint8 x,uint8 y,uint16 num);			//在addr處顯示數字num