main.i

51读写硬盘的程序模块,编译完全通过,移植方面,实用.

#line 1 "System\main.c" /0
  
#line 1 "C:\KEIL\C51\INC\ATMEL\REG51.H" /0






 
 
 
 
 
 
 sfr P0   = 0x80;
 sfr P1   = 0x90;
 sfr P2   = 0xA0;
 sfr P3   = 0xB0;
 sfr PSW  = 0xD0;
 sfr ACC  = 0xE0;
 sfr B    = 0xF0;
 sfr SP   = 0x81;
 sfr DPL  = 0x82;
 sfr DPH  = 0x83;
 sfr PCON = 0x87;
 sfr TCON = 0x88;
 sfr TMOD = 0x89;
 sfr TL0  = 0x8A;
 sfr TL1  = 0x8B;
 sfr TH0  = 0x8C;
 sfr TH1  = 0x8D;
 sfr IE   = 0xA8;
 sfr IP   = 0xB8;
 sfr SCON = 0x98;
 sfr SBUF = 0x99;
 
 
 
 
 sbit CY   = 0xD7;
 sbit AC   = 0xD6;
 sbit F0   = 0xD5;
 sbit RS1  = 0xD4;
 sbit RS0  = 0xD3;
 sbit OV   = 0xD2;
 sbit P    = 0xD0;
 
 
 sbit TF1  = 0x8F;
 sbit TR1  = 0x8E;
 sbit TF0  = 0x8D;
 sbit TR0  = 0x8C;
 sbit IE1  = 0x8B;
 sbit IT1  = 0x8A;
 sbit IE0  = 0x89;
 sbit IT0  = 0x88;
 
 
 sbit EA   = 0xAF;
 sbit ES   = 0xAC;
 sbit ET1  = 0xAB;
 sbit EX1  = 0xAA;
 sbit ET0  = 0xA9;
 sbit EX0  = 0xA8;
 
 
 sbit PS   = 0xBC;
 sbit PT1  = 0xBB;
 sbit PX1  = 0xBA;
 sbit PT0  = 0xB9;
 sbit PX0  = 0xB8;
 
 
 sbit RD   = 0xB7;
 sbit WR   = 0xB6;
 sbit T1   = 0xB5;
 sbit T0   = 0xB4;
 sbit INT1 = 0xB3;
 sbit INT0 = 0xB2;
 sbit TXD  = 0xB1;
 sbit RXD  = 0xB0;
 
 
 sbit SM0  = 0x9F;
 sbit SM1  = 0x9E;
 sbit SM2  = 0x9D;
 sbit REN  = 0x9C;
 sbit TB8  = 0x9B;
 sbit RB8  = 0x9A;
 sbit TI   = 0x99;
 sbit RI   = 0x98;
 
 
#line 1 "System\main.c" /0
 
  
#line 1 "C:\KEIL\C51\INC\ABSACC.H" /0






 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
#line 24 "C:\KEIL\C51\INC\ABSACC.H" /1
  
  
  
  
 
#line 29 "C:\KEIL\C51\INC\ABSACC.H" /0
 
 
 
 
 
 
 
#line 2 "System\main.c" /0
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 static unsigned char code LCD1[16]= "TOPLOW DESIGN   ";
 static unsigned char code LCD2[16]= "Copyright(C)2004";
 static unsigned char code ERROR[16]="ERROR           ";
 static unsigned char code PASS[16]= "PASS            ";
 
  unsigned char buffer0,buffer1;
  unsigned char buffer[16];
  unsigned char STATUS;
 
 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;











 
 



 
 void delay(unsigned int time)
 {
  unsigned int i,j;
 for(i=0;i<time;i++)
 for(j=0;j<255;j++);
 } 
 



 
 void putch(unsigned char ch) 
 {
 SBUF=ch;
 TI=0;
 while(!TI);
 }
 



 
 unsigned char getch(void) 
 {
  unsigned char temp; 
 while(!RI);
 temp=SBUF;   
 RI=0;
 return(temp);
 } 
 
 



 
 void wait(void)
 {
 do{ACC=((unsigned char volatile xdata *) 0)[0x0008];}
 while(BFLAG==1);
 }
 



 
 void IniLcd(void)
 {
   ((unsigned char volatile xdata *) 0)[0x0008]=0x38;
 wait();
   ((unsigned char volatile xdata *) 0)[0x0008]=0x08;
 wait();
   ((unsigned char volatile xdata *) 0)[0x0008]=0x01;
 wait();
   ((unsigned char volatile xdata *) 0)[0x0008]=0x06;
 wait();
   ((unsigned char volatile xdata *) 0)[0x0008]=0x0c;
 wait();
 }  



 
 void LcdDis(unsigned char FL,unsigned char Lcd1[16],unsigned char SL,unsigned char Lcd2[16])
 {
  unsigned char k;
 
   ((unsigned char volatile xdata *) 0)[0x0008]=FL|0x80;
 wait();
 for(k=0;k<16;k++){
   ((unsigned char volatile xdata *) 0)[0x0009]=Lcd1[k];
 wait();
 }
   ((unsigned char volatile xdata *) 0)[0x0008]=SL|0xc0;
 wait();
 for(k=0;k<16;k++){
   ((unsigned char volatile xdata *) 0)[0x0009]=Lcd2[k];
 wait();
 }
 }
 



 
 void ReadReg(unsigned char ADD)
 {
   ((unsigned char volatile xdata *) 0)[0x0007]=0x92;
   ((unsigned char volatile xdata *) 0)[0x0006]=ADD;
 READ=0;
 ACC=((unsigned char volatile xdata *) 0)[0x0004];
 STATUS=ACC;
 READ=1;
 }
 



 
 void WriteReg(unsigned char ADD,unsigned char DATA)
 {
   ((unsigned char volatile xdata *) 0)[0x0007]=0x80;
   ((unsigned char volatile xdata *) 0)[0x0006]=ADD;
 WRITE=0;
   ((unsigned char volatile xdata *) 0)[0x0004]=DATA;
 WRITE=1;
 }
 



 
 void ReadData()
 {
   ((unsigned char volatile xdata *) 0)[0x0007]=0x92;
   ((unsigned char volatile xdata *) 0)[0x0006]=0x00;
 READ=0;
 buffer0=((unsigned char volatile xdata *) 0)[0x0004];
 buffer1=((unsigned char volatile xdata *) 0)[0x0005];
 READ=1;
 }
 



 
 void WriteData(unsigned char Data0,unsigned char Data1)
 {
   ((unsigned char volatile xdata *) 0)[0x0007]=0x80;
   ((unsigned char volatile xdata *) 0)[0x0006]=0x00;
 WRITE=0;
   ((unsigned char volatile xdata *) 0)[0x0004]=Data0;
   ((unsigned char volatile xdata *) 0)[0x0005]=Data1;
 WRITE=1;
 }
 



 
 WriteCHS(unsigned char head,unsigned int cylinder,unsigned char sector)
 {
 do{ReadReg(0x07);}while(BSY);
 WriteReg(0x06,0xe0&head);
 WriteReg(0x05,cylinder>>8);     
 WriteReg(0x04,cylinder&0x00ff); 
 WriteReg(0x03,sector);  
 WriteReg(0x02,0x01);    
 }



 
 WriteCommand(command)
 {
 do{ReadReg(0x07);}while(BSY);
 WriteReg(0x07,command);
 }



 
 void GetData()
 {
  unsigned int i=512;
 do{ReadReg(0x07);}while(BSY|!DRQ);
 if(ERR){
 LcdDis(0,ERROR,0,LCD2);
 putch(255);
 }
 while(i){ReadData();putch(buffer0);putch(buffer1);i-=2;}
 }
 



 
 void IniHard(void)
 {
 do{
 WriteReg(0x06,0xa0);
 ReadReg(0x07); 
 }while(!DRDY|BSY);
 WriteReg(0x06,0x20);
 WriteReg(0x02,64);
 WriteReg(0x07,0x91);
 do{ReadReg(0x07);}while(BSY);
 WriteReg(0x07,0x10);
 do{ReadReg(0x07);}while(BSY); 
 }  



 
 void DriveID(void) 
 {
  unsigned int i=512;
 do{ReadReg(0x07);}while(BSY);
 WriteReg(0x07,0xec);
 do{ReadReg(0x07);}while(BSY|!DRQ);
 while(i){ReadData();putch(buffer0);putch(buffer1);i-=2;}
 }
 



 
 void HardDiskControl(void)
 {
  unsigned int i;
 SCON=0x50;       
 TMOD=0x21;       
 PCON=0x80;       
 TCON=0x51;       
 EA=1;            
 EX0=0;           
 TH1=0xD0;
 TL1=0xD0;
 TI=1;
 
 RESET=0;
 delay(50);
 RESET=1;
 delay(255);
 
 IniHard();
 
 WriteCHS(0,0,0);
 WriteCommand(0x20);
 GetData();
 
 IniLcd();
 LcdDis(0,LCD1,0,LCD2);
 
 for(i=0;i<512;i++){
 putch(i);
 delay(255);
 }
 while(1);
 }
 
 void main(void){
 HardDiskControl();
 DriveID();
 WriteData(0X00,0X01);
 getch();
 }