51单片机控制硬盘资料及电路

文章摘要：Read=1;}/***写数据寄存器中数据/void WriteData(void){RegAddr=_Data;Write=0;DataL=Data_bufferL;DataH=Data_bufferH;Write=1;}/**初始化硬盘 /void Init(void){ do{WriteReg(_DeviceAndHead,0xa0); ReadReg(_Status_Command); }while(!DRDY|BSY); WriteReg(_DeviceAndHead,_Max

51单片机控制硬盘资料及电路,标签：电路设计,http://www.88dzw.com
Read=1;
}

/*******************************************************
写数据寄存器中数据
********************************************************/
void WriteData(void)
{
RegAddr=_Data;
Write=0;
DataL=Data_bufferL;
DataH=Data_bufferH;
Write=1;
}

/**********************************************************
初始化硬盘                                          *
***********************************************************/
void Init(void)
{ do{
WriteReg(_DeviceAndHead,0xa0);
     ReadReg(_Status_Command);      
}while(!DRDY|BSY);
    WriteReg(_DeviceAndHead,_MaxHead);
    WriteReg(_SecCount,_MaxSector);
    WriteReg(_Status_Command,0x91);
WaitBSY();
    WriteReg(_Status_Command,0x10);
WaitBSY();
}

/**********************************************************
读硬盘参数
***********************************************************/
void DriverID(void)
{
unsigned int i=512;
//send_string("Starting read driver ID\n");
WaitBSY();
//send_string("Now can read driver ID \n");
WriteReg(_Status_Command,0xec);
//send_string("Waiting.. ");
do{ReadReg(_Status_Command);}while(BSY|!DRQ);
//send_string("Now Sending \n");
while(i){
ReadData();
send_char(Data_bufferH);
send_char(Data_bufferL);
i-=2;
}
}

/*********************************************************
硬盘寻址
**********************************************************/
WriteCHS(byte head,uint cylinder,byte sector,byte read_count)
{
WaitBSY();
WriteReg(_DeviceAndHead,0xa0|head);
WriteReg(_CylinderH,(char)(cylinder>>8));
WriteReg(_CylinderL,(char)(cylinder&0x00ff));
WriteReg(_SecNum,sector);
WriteReg(_SecCount,read_count);
}

/**********************************************************
*用途:将硬盘的返回数据读入BUFFER数组
***********************************************************/
void SendData()
{ uint i;
i=512*15;
do{ReadReg(_Status_Command);}while(BSY|!DRQ);
if(ERR){
send_string("\x0d\x0a Error\x0d\x0a");
    }
while(i){ReadData();send_char(Data_bufferL);send_char(Data_bufferH);i-=2;}
}

// 激活硬盘(转动)
void SpinUP()
{
WaitBSY();
WriteReg(_Status_Command,0xE1);
}
// 让硬盘休眠(停转)/
void SpinDown()
{
WaitBSY();
WriteReg(_Status_Command,0xE0);
}

void main(void)
{
//Initialize
SCON=0x50; //串口初始化
TMOD=0x20;   //波特率为57600bps
TCON=0x40;
PCON=0x80;
TH1=0xFf;
TL1=0xFf;
TR1=1;
send_string("IDE Control Demo.     Power By DDDLZHU\x0d\x0a");//send welcome word
Rst=0; //IDE 复位
delay(50);
Rst=1;
delay(255);
send_string("Reset Driver OK...\x0d\x0a");
Init();   //初始化硬盘
send_string("Initialize Driver OK,Now Read ID\x0d\x0a");

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