smi.h

pdh控制程序

#ifndef _SMI_H_
#define _SMI_H_

#include "ctype.h"
#include "reg52.h"

typedef union
{
	struct
	{
		BYTE high8;
		BYTE low8;
	}bit8;
	WORD union16;
}SMIDATA;


sbit MDC = P1^2;
sbit MDIO = P1^3;

#define setMDIO			{MDC=0;MDIO=1;MDC=1;}
#define clearMDIO		{MDC=0;MDIO=0;MDC=1;}

#define MAXPREAMBLELENGTH 33

#define SMIPHYADDRESSLENGTH 5
#define SMIPHYADDRESSBIT	3


void smiBitSend( BYTE length, BYTE value );
BYTE smiBitGet( void );
void smiPreambleSend( void );
void smiStartWrite( void );
void smiStartRead( void );
void smiPhyRegisterSend( BYTE phyRegAddr, BYTE phyAddr );
void smiWriteValue( SMIDATA *smiData );
void smiReadValue( SMIDATA *smiData );

#endif