simuframe.cpp

一个通讯管理机的源代码。比较好用。推荐

#include "simuframe.h"

bool CSimuFrame::FrameToBuffer(CDataNode &dn)
{
	bool bRet = false;
	if (m_bIsSetup)
	{
		dn.SetSize(12);
		dn.m_pbyData[0] = 0xeb;
		dn.m_pbyData[1] = 0x90;
		dn.m_pbyData[2] = 0xeb;
		dn.m_pbyData[3] = 0x90;
		dn.m_pbyData[4] = 0xeb;
		dn.m_pbyData[5] = 0x90;
		dn.m_pbyData[6] = m_byAddr;
		memcpy(&dn.m_pbyData[7],m_pData,4);
		dn.m_pbyData[11] = GetCHKSUM();
//		dn.m_wSize = 12;
		bRet = true;
	}
	return bRet;
}

BYTE CSimuFrame::GetCHKSUM()
{
	BYTE byRet = 0;
	if (m_bIsSetup)
	{
		byRet = m_byAddr;
		for(BYTE b=0;m_pData&&(b<4); b++)
			byRet += m_pData[b];
	}
	return byRet;
}

//byAddr=YCNo;YXGroupNo+++byCID=0:YX;=1YC
void CSimuFrame::SetupFrame(CFrameNode *pFNSend)//BYTE byAddr,BYTE byCID,BYTE* pbyData,WORD wSize)
{
	if(pFNSend->m_wSize==4)
	{
		BYTE byAddr = pFNSend->m_byDesAddr;
		if (pFNSend->m_byCID == 0)
			m_byAddr = 64 + 2*byAddr;
		else m_byAddr = 2*(byAddr+1);
		m_wLength = 4;
		memcpy(m_pData,pFNSend->m_pbyData,4);
		m_bIsSetup = TRUE;
	}
	else
		m_bIsSetup=FALSE;
}