*******************************************************************/

///////////////////預處理/////////////////////////////////////
#include <reg51.h>
#include <absacc.h>
#define uchar unsigned char
#define uint  unsigned int
#define KEYPORT P1

#define LCDCOM  XBYTE[0x0008] //LCD命令寄存器
#define LCDDATA XBYTE[0x0009] //LCD數(shù)據(jù)寄存器

#define CDPA  XBYTE[0x0004]   //8255 PORT A, harddisk D0-D7
#define CDPB  XBYTE[0x0005]   //8255 PORT B, harddisk D8-D15
#define CDPC  XBYTE[0x0006]   //8255 PORT C，harddisk address
#define CDCOM XBYTE[0x0007]   //8255 命令寄存器

#define FILE0 0x00            //硬盤數(shù)據(jù)寄存器          
#define FILE1 0x01            //錯誤/特征寄存器
#define FILE2 0x02            //扇區(qū)數(shù)寄存器
#define FILE3 0x03            //扇區(qū)號寄存器
#define FILE4 0x04            //柱面號寄存器L
#define FILE5 0x05            //柱面號寄存器H
#define FILE6 0x06            //驅動器/磁頭寄存器
#define FILE7 0x07            //狀態(tài)/命令寄存器



static uchar code LCD1[16]= "TOPLOW DESIGN   ";
static uchar code LCD2[16]= "Copyright(C)2004";
static uchar code ERROR[16]="ERROR           ";
static uchar code PASS[16]= "PASS            ";

uchar buffer0,buffer1;
uchar buffer[16];
uchar STATUS;
///////////////////位設置///////////////////////////
sbit BFLAG=ACC^7;
sbit BSY=ACC^7;
sbit DRDY=ACC^6;
sbit DRQ=ACC^3;
sbit ERR=ACC^0;
sbit RESET=P3^5;
sbit READ=P3^0;
sbit WRITE=P3^1;
sbit ILT=ACC^0;
sbit INTRQ=P3^3;
/************************************************************
* D7   D6   D5   D4   D3   D2    D1   D0                    *
BSY  DRDY  DWF  DSC DRQ  CORR  IDX   ERR                   *
BSY：驅動器忙；                                             *
DRDY：驅動器準備好；                                        *
DWF：驅動器寫失敗；                                         *
DSC:尋道結束；                                              *
DRQ：請求服務，驅動器希望通過數(shù)據(jù)寄存器與CPU交換一字節(jié)數(shù)據(jù)；*
CORR：當可以糾正的讀錯誤發(fā)生時，該位置1，數(shù)據(jù)傳輸將繼續(xù)進行 *
IDX：收到綜引信號；                                         *
ERR：命令執(zhí)行出錯。                                         *
*************************************************************/

/*******************************************************
*函數(shù)名稱:void delay(uint time)                        *
*函數(shù)用途:延遲函數(shù)                                     *
********************************************************/    
void delay(uint time)
{uint i,j;
for(i=0;i<time;i++)
    for(j=0;j<255;j++);
}

/*******************************************************
*函數(shù)名稱:void putch(unsigned char ch)                 *
*函數(shù)用途:串口發(fā)送程序                                 *
********************************************************/
void putch(unsigned char ch)
{SBUF=ch;
TI=0;
while(!TI);
}

/*******************************************************
*函數(shù)名稱:unsigned char getch(void)                    *
*函數(shù)用途:串口接收程序                                 *
********************************************************/
unsigned char getch(void)
{uchar temp;
while(!RI);
temp=SBUF;   
RI=0;
return(temp);
}


/*******************************************************
*函數(shù)名稱:void wait(void)                              *
*函數(shù)用途:LCD忙等待                                    *
********************************************************/  
void wait(void)
{do{ACC=LCDCOM;}
   while(BFLAG==1);
}

/*******************************************************
*函數(shù)名稱:void IniLcd(void)                            *
*函數(shù)用途:LCD初始化函數(shù)                                *
********************************************************/  
void IniLcd(void)
{LCDCOM=0x38;
wait();
LCDCOM=0x08;
wait();
LCDCOM=0x01;
wait();
LCDCOM=0x06;
wait();
LCDCOM=0x0c;
wait();
}  
/***********************************************************************
*函數(shù)名稱:void LcdDis(uchar FL,uchar Lcd1[16],uchar SL,uchar Lcd2[16]) *
*函數(shù)用途:液晶顯示函數(shù)                                                 *
************************************************************************/
void LcdDis(uchar FL,uchar Lcd1[16],uchar SL,uchar Lcd2[16])
{uchar k;
LCDCOM=FL|0x80;
wait();
for(k=0;k<16;k++)
   {LCDDATA=Lcd1[k];
    wait();
    }
LCDCOM=SL|0xc0;
wait();
for(k=0;k<16;k++)
   {LCDDATA=Lcd2[k];
    wait();
    }
}