hmican_usb.cpp

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// HMIcan_usb.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "HMIcan_usb.h"
#include "HMIcan_usbDlg.h"
#include "ControlCAN.h"  ////////////////////
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CHMIcan_usbApp

BEGIN_MESSAGE_MAP(CHMIcan_usbApp, CWinApp)
	//{{AFX_MSG_MAP(CHMIcan_usbApp)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG
	ON_COMMAND(ID_HELP, CWinApp::OnHelp)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHMIcan_usbApp construction

CHMIcan_usbApp::CHMIcan_usbApp()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
}

/////////////////////////////////////////////////////////////////////////////
// The one and only CHMIcan_usbApp object

CHMIcan_usbApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CHMIcan_usbApp initialization

BOOL CHMIcan_usbApp::InitInstance()
{
	AfxEnableControlContainer();

	// Standard initialization
	// If you are not using these features and wish to reduce the size
	//  of your final executable, you should remove from the following
	//  the specific initialization routines you do not need.

#ifdef _AFXDLL
	Enable3dControls();			// Call this when using MFC in a shared DLL
#else
	Enable3dControlsStatic();	// Call this when linking to MFC statically
#endif

	CHMIcan_usbDlg dlg;
	m_pMainWnd = &dlg;
	int nResponse = dlg.DoModal();
	if (nResponse == IDOK)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with OK
	}
	else if (nResponse == IDCANCEL)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with Cancel
	}

	// Since the dialog has been closed, return FALSE so that we exit the
	//  application, rather than start the application's message pump.
	return FALSE;
}
//发送数据函数
//frmid为传入的帧ID参数为8位
//SndChar 发送数据的字节
void CHMIcan_usbApp::SendData(CString frmid,__Char64bits SndChar)  
{
	if(m_connect==0)
		return;
	VCI_CAN_OBJ frameinfo;
	char szFrameID[9];
	unsigned char FrameID[4]={0,0,0,0};
	memset(szFrameID,'0',9);
	unsigned char Data[8];
	CString SendDataStr = "01 02 03 04 05 06 07 08";
	char szData[25];
	BYTE datalen=0;
	
	if(frmid.GetLength()==0)  //////////ID为空
	{
		//MessageBox("帧ID为空");
		return;
	}
	if(frmid.GetLength()!=8)
	{
		//MessageBox("帧ID长度不等于8位");
		return;
	}
			
	memcpy(&szFrameID[8-frmid.GetLength()],(LPCTSTR)frmid,frmid.GetLength());
	int jhb=frmid.GetLength();
	strtodata((unsigned char*)szFrameID,FrameID,4,0);
	
	datalen=(SendDataStr.GetLength()+1)/3;
	strcpy(szData,(LPCTSTR)SendDataStr);
	strtodata((unsigned char*)szData,Data,datalen,1);
	
	frameinfo.DataLen=datalen;
	memcpy(&frameinfo.Data,Data,datalen);
	
	frameinfo.RemoteFlag=0;//帧格式：数据帧0
	frameinfo.ExternFlag=1;//帧类型：扩展帧1

	if(frameinfo.ExternFlag==1)
	{
		frameinfo.ID=((DWORD)FrameID[0]<<24)+((DWORD)FrameID[1]<<16)+((DWORD)FrameID[2]<<8)+
			((DWORD)FrameID[3]);
	}
	else
	{
		frameinfo.ID=((DWORD)FrameID[2]<<8)+((DWORD)FrameID[3]);		
	}
	frameinfo.SendType=0;//发送格式：自发自收2

	///////////////////////////
	unsigned char tempData[8];
	tempData[0]=SndChar.c7;
	tempData[1]=SndChar.c6;
	tempData[2]=SndChar.c5;
	tempData[3]=SndChar.c4;
	tempData[4]=SndChar.c3;
	tempData[5]=SndChar.c2;
	tempData[6]=SndChar.c1;
	tempData[7]=SndChar.c0;
	//此处是从高位到低位
		
	memcpy(&frameinfo.Data,tempData,datalen);
	///////////////////////////////////
	if(VCI_Transmit(m_devtype,m_devind,m_cannum,&frameinfo,1)==1)
	{
				
	}
	else
	{
		//MessageBox("数据写入失败");		
	}	
	Sleep(50);
}

/////////////////////////////////

//-----------------------------------------------------
//参数：
//str：要转换的字符串
//data：储存转换过来的数据串
//len:数据长度
//函数功能：字符串转换为数据串
//-----------------------------------------------------
int CHMIcan_usbApp::strtodata(unsigned char *str, unsigned char *data,int len,int flag)
{
	unsigned char cTmp=0;
	int i=0;
	for(int j=0;j<len;j++)
	{
		if(chartoint(str[i++],&cTmp))
			return 1;
		data[j]=cTmp;
		if(chartoint(str[i++],&cTmp))
			return 1;
		data[j]=(data[j]<<4)+cTmp;
		if(flag==1)
			i++;
	}
	return 0;
}
//-----------------------------------------------------
//参数：
//chr：要转换的字符
//cint：储存转换过来的数据
//函数功能：字符转换为数据
//-----------------------------------------------------
int CHMIcan_usbApp::chartoint(unsigned char chr, unsigned char *cint)
{
	unsigned char cTmp;
	cTmp=chr-48;
	if(cTmp>=0&&cTmp<=9)
	{
		*cint=cTmp;
		return 0;
	}
	cTmp=chr-65;
	if(cTmp>=0&&cTmp<=5)
	{
		*cint=(cTmp+10);
		return 0;
	}
	cTmp=chr-97;
	if(cTmp>=0&&cTmp<=5)
	{
		*cint=(cTmp+10);
		return 0;
	}
	return 1;
}

//////////////////////////////////////////