// ProtocolPMC916.h: interface for the CProtocolModbus class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_PROTOCOLPMC916_H__3A4B4E9B_C165_4415_8EC3_3F5AA66B53C9__INCLUDED_)
#define AFX_PROTOCOLPMC916_H__3A4B4E9B_C165_4415_8EC3_3F5AA66B53C9__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#define DEBUG_PROTOCOL 1

#include "Protocol.h"

class CProtocolModbus : public CProtocol  
{
public:
	virtual BOOL InitParam(PPORTPARAM pPortParam, CCommAsyn *pComm);
	virtual  int WorkMain(
						int nAddr,				//设备地址
						BYTE Start,//起始位
						BYTE StartAddr[2],//起始地址
						int nRegNum,//读取的寄存器个数
						BYTE FuncCode[2], 
						int nDataLen,
						BYTE byWithAddrFlag,
						char chMsg[80]);

	virtual  int WriteCommand(char DataBuffer[80], int nDataLen);
	CProtocolModbus();
	virtual ~CProtocolModbus();
protected:
	HANDLE m_hSemComm;
	CRITICAL_SECTION m_csReadFinished;
	CRITICAL_SECTION m_csWrFinished;
protected:
	virtual int RequestStatus(  
								int nAddr,			//设备地址
								BYTE Start,			//起始位
								BYTE StartAddr[2],	//起始地址
								int nRegNum,		//读取的寄存器个数
								BYTE FuncCode[2]);

	virtual int ResponseStatus(int nDataLen, BYTE byWithAddrFlag, char chMsg[80]);

	virtual int RequestWrStatus( char DataBuffer[80], int nDataLen);
	virtual int ResponseWrStatus(char DataBuffer[80], int nDataLen);
};

//BYTE GetCheckCode(const char * pSendBuf, int nEnd);//获得校验码 
char ByteToAscii(BYTE btSrc);
WORD AsciiToBYTE(BYTE btSrc);
static unsigned char LRC(unsigned char *auchMsg, unsigned short usDataLen);

#endif // !defined(AFX_PROTOCOLPMC916_H__3A4B4E9B_C165_4415_8EC3_3F5AA66B53C9__INCLUDED_)