sample1dlg.cpp

并口转I2C样本程序

// Sample1Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "Sample1.h"
#include "Sample1Dlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSample1Dlg dialog

CSample1Dlg::CSample1Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSample1Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSample1Dlg)
	m_DeviceAddr = _T("");
	m_RegAddr = _T("");
	m_Value = _T("");
	m_Infor = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSample1Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSample1Dlg)
	DDX_Text(pDX, IDC_EDIT_DEVICE_ADDR, m_DeviceAddr);
	DDX_Text(pDX, IDC_EDIT_REG_ADDR, m_RegAddr);
	DDX_Text(pDX, IDC_EDIT_VALUE, m_Value);
	DDX_Text(pDX, IDC_EDIT_INFOR, m_Infor);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSample1Dlg, CDialog)
	//{{AFX_MSG_MAP(CSample1Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_EN_CHANGE(IDC_EDIT_DEVICE_ADDR, OnChangeEditDeviceAddr)
	ON_EN_CHANGE(IDC_EDIT_REG_ADDR, OnChangeEditRegAddr)
	ON_EN_CHANGE(IDC_EDIT_VALUE, OnChangeEditValue)
	ON_EN_CHANGE(IDC_EDIT_INFOR, OnChangeEditInfro)
	ON_BN_CLICKED(IDC_BUTTON_READ, OnButtonRead)
	ON_BN_CLICKED(IDC_BUTTON_WRITE, OnButtonWrite)
	ON_BN_CLICKED(IDC_REMOVE, OnRemove)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSample1Dlg message handlers

BOOL CSample1Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	InitializeWinIo();

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CSample1Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CSample1Dlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CSample1Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CSample1Dlg::OnChangeEditDeviceAddr() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	UpdateData(1);
	if(!(((m_DeviceAddr.Right(1)>='0')&&(m_DeviceAddr.Right(1)<='9'))||((m_DeviceAddr.Right(1)>='a')&&(m_DeviceAddr.Right(1)<='f'))||((m_DeviceAddr.Right(1)>='A')&&(m_DeviceAddr.Right(1)<='F'))))
		{
		if(m_DeviceAddr.GetLength()==0)
			return;
		m_DeviceAddr.SetAt(m_DeviceAddr.GetLength()-1,NULL);
		MessageBox("Please input a Hex data");
		UpdateData(0);
		}
}

void CSample1Dlg::OnChangeEditRegAddr() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	UpdateData(1);
	if(!(((m_RegAddr.Right(1)>='0')&&(m_RegAddr.Right(1)<='9'))||((m_RegAddr.Right(1)>='a')&&(m_RegAddr.Right(1)<='f'))||((m_RegAddr.Right(1)>='A')&&(m_RegAddr.Right(1)<='F'))))
		{
		if(m_RegAddr.GetLength()==0)
			return;
		m_RegAddr.SetAt(m_RegAddr.GetLength()-1,NULL);
		MessageBox("Please input a Hex data");
		UpdateData(0);
		}
}

void CSample1Dlg::OnChangeEditValue() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	UpdateData(1);

	if(!(((m_Value.Right(1)>='0')&&(m_Value.Right(1)<='9'))||((m_Value.Right(1)>='a')&&(m_Value.Right(1)<='f'))||((m_Value.Right(1)>='A')&&(m_Value.Right(1)<='F'))))
		{
		if(m_Value.GetLength()==0)
			return;
		m_Value.SetAt(m_Value.GetLength()-1,NULL);
		MessageBox("Please input a Hex data");
		UpdateData(0);
		}
}

void CSample1Dlg::OnChangeEditInfro() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	
}

void CSample1Dlg::OnButtonRead() 
{
	// TODO: Add your control notification handler code here
	unsigned int ideviceaddress, iregaddress;
	unsigned char *preceivevalue;
	int ireceivedata = 0;
	int i,j=0;
	/*
	bool k;

	UpdateData(1);
	k=SetPortVal(0x378, 0xff, 1);
	if(k==false)
		MessageBox("aaaaaa");
	UpdateData(0);
	*/
	
	UpdateData(1);
	if((m_DeviceAddr.IsEmpty())||(m_RegAddr.IsEmpty()))
		{
		MessageBox("Please input the device and register addr.");
		return;
		}
	preceivevalue = new unsigned char[DAT_LENGTH];

	sscanf(m_DeviceAddr.GetBuffer(m_DeviceAddr.GetLength()), "%x", &ideviceaddress);
	sscanf(m_RegAddr.GetBuffer(m_RegAddr.GetLength()), "%x", &iregaddress);

	j=receive_data(ideviceaddress, iregaddress, DAT_LENGTH, preceivevalue);
	if(j==0)
		{
		for(i=0; i<DAT_LENGTH; i++)
			ireceivedata = ireceivedata | (preceivevalue[i])<<8*(DAT_LENGTH-1-i);
		m_Value.Format("%x",ireceivedata);
		m_Infor="Read Data Successful!";
		}
	else
		{
		m_Infor="Read Data Failed!";
		}
	
	UpdateData(0);	
	
}

void CSample1Dlg::OnButtonWrite() 
{
	// TODO: Add your control notification handler code here
	char *psendvalue;
	int ideviceaddress, iregaddress;
	int isenddata;
	int i,j;
	/*
	DWORD temp_value = 0;
	CString k;

	GetPortVal(0x379, &temp_value, 1);
	k.Format("the temp value: %x",temp_value);
	MessageBox(k);
	//SetPortVal(0x378, 0x02, 1);
	// TODO: Add your control notification handler code here
	*/
	
	UpdateData(1);

	if((m_DeviceAddr.IsEmpty())||(m_RegAddr.IsEmpty())||(m_Value.IsEmpty()))
		{
		MessageBox("Please input the device and register addr. also the value");
		return;
		}

	psendvalue = new char[DAT_LENGTH];

	sscanf(m_DeviceAddr.GetBuffer(m_DeviceAddr.GetLength()), "%x", &ideviceaddress);
	sscanf(m_RegAddr.GetBuffer(m_RegAddr.GetLength()), "%x", &iregaddress);
	sscanf(m_Value.GetBuffer(m_Value.GetLength()), "%x", &isenddata);

	for(i=0; i<DAT_LENGTH; i++)
		psendvalue[i] = char(isenddata>>(DAT_LENGTH-1-i)*8);


	j=send_data(ideviceaddress, iregaddress, DAT_LENGTH, psendvalue);

	if(j==0)
		m_Infor="Write Data Successful!";
	else
		m_Infor="Write Data Failed!";

	UpdateData(0);	
	
}

void CSample1Dlg::myDelay(DWORD dvalue)
{
	unsigned int i;
	for (i=0; i<2000*dvalue; i++);
}


void CSample1Dlg::Write_SCL(BYTE value)
{
	DWORD temp_value = 0;
	GetPortVal(PORT_SCL, &temp_value, 1);

	temp_value = temp_value & 0xFE;
/*
	if(value)//reverse it
		value=0x0;
	else
		value=0x01;
*/
	temp_value = temp_value | ((value & 0x01)<<SCL_PIN);
	SetPortVal(PORT_SCL, temp_value, 1);
}

void CSample1Dlg::Write_SDA(BYTE value)
{
	DWORD temp_value = 0;
	GetPortVal(PORT_OUT, &temp_value, 1);

	temp_value = temp_value & 0xFD;
/*
	if(value)//reverse it
		value=0x0;
	else
		value=0x01;
*/
	temp_value = temp_value | ((value & 0x01)<<SDA_OUT);
	SetPortVal(PORT_OUT, temp_value, 1);
}

void CSample1Dlg::Get_SDA(DWORD *pvalue)
{
	BYTE i;
	DWORD temp_value = 0;
	//pre set output 0
	Write_SDA(0x01);
	for(i=0;i<=20;i++)
		;
	GetPortVal(PORT_IN, &temp_value, 1);

	*pvalue = (temp_value & 0x10)>>SDA_IN;
//	Write_SDA(0x00);
}

void CSample1Dlg::I2C_stop()
{
	//scl = 0, sda = 0
	Write_SCL(0);
	Write_SDA(SDA_ZERO);
	myDelay(1);

	//scl = 1, sda = 0
	Write_SCL(1);
	Write_SDA(SDA_ZERO);
	myDelay(1);
	
	//scl = 1, sda = 1
	Write_SCL(1);
	Write_SDA(SDA_ONE);
	myDelay(1);

	//scl = 1, sda = 1
	Write_SCL(1);
	Write_SDA(SDA_ONE);
	myDelay(1);
}

void CSample1Dlg::I2C_start()
{
	//scl = 0, sda = 1
	Write_SCL(0);
	Write_SDA(SDA_ONE);
	myDelay(1);

	//scl = 1, sda = 1
	Write_SCL(1);
	Write_SDA(SDA_ONE);
	myDelay(1);
	
	//scl = 1, sda = 0
	Write_SCL(1);
	Write_SDA(SDA_ZERO);
	myDelay(1);

	//scl = 0, sda = 0
	Write_SCL(0);
	Write_SDA(SDA_ZERO);
	myDelay(1);
}

void CSample1Dlg::Send_noanswer()
{
	//scl = 0, sda =1
	Write_SCL(0);
	Write_SDA(SDA_ONE);
	myDelay(1);

	//scl = 1, sda = 1
	Write_SCL(1);
	Write_SDA(SDA_ONE);
	myDelay(1);
	
	//scl = 1, sda = 1
	Write_SCL(1);
	Write_SDA(SDA_ONE);
	myDelay(1);

	//scl = 0, sda = 1
	Write_SCL(0);
	Write_SDA(SDA_ONE);
	myDelay(1);
}

void CSample1Dlg::Send_answer()
{
	//scl = 0, sda = 0
	Write_SCL(0);
	Write_SDA(SDA_ZERO);
	myDelay(1);

	//scl = 1, sda = 0
	Write_SCL(1);
	Write_SDA(SDA_ZERO);
	myDelay(1);
	
	//scl = 1, sda = 0
	Write_SCL(1);
	Write_SDA(SDA_ZERO);
	myDelay(1);

	//scl = 0, sda = 1
	Write_SCL(0);
	Write_SDA(SDA_ONE);
	myDelay(1);
}

bool CSample1Dlg::Check_answer()
{
	DWORD read_value;

	//scl = 0
	Write_SCL(0);
	myDelay(1);

	//scl = 1, read ack
	Write_SCL(1);
	Get_SDA(&read_value);
	myDelay(1);
	
	//scl = 1
	Write_SCL(1);
	myDelay(1);

	//scl = 0
	Write_SCL(0);
	
	myDelay(1);

	if ((read_value & SDA_ONE) ==0)
		return true;
	return false;
}

void CSample1Dlg::Send_Byte(int send_value)
{
	int i;
	
	for(i=8; i>0; i--)
	{
		//scl = 0
		Write_SCL(0);
		Write_SDA(send_value>>(i-1));
		myDelay(1);

		//scl = 1, send data
		Write_SCL(1);
		
		myDelay(1);

		//scl = 1
		Write_SCL(1);
		myDelay(1);

		//scl = 0
		Write_SCL(0);
		myDelay(1);
	}
	Write_SDA(SDA_ONE);

}

DWORD CSample1Dlg::Receive_Byte()
{
	DWORD temp;
	DWORD receive_value = 0;
	int i;
	//CString k;
	for(i=8; i>0; i--)
	{
		//scl = 0
		Write_SCL(0);
		myDelay(1);

		//scl = 1, receive data
		Write_SCL(1);
		Get_SDA(&temp);
		receive_value = receive_value | ((temp & SDA_ONE)<<(i-1));
		myDelay(1);

		//scl = 1
		Write_SCL(1);
		myDelay(1);

		//scl = 0
		Write_SCL(0);
	
		myDelay(1);
	}
	//k.Format("%x",receive_value);
	//MessageBox(k);
	return receive_value;
}

int CSample1Dlg::send_data(int address, int regaddress, int length, char *pbuff)
{
	int i;
	bool answer_check;
	
	I2C_start();
	Send_Byte(address & 0xfe);
	answer_check = Check_answer();
	if (!answer_check)
	{
		I2C_stop();
		return -1;
	}


	Send_Byte(regaddress);
	answer_check = Check_answer();
	if (!answer_check)
	{
		I2C_stop();
		return -1;
	}


	for (i=0; i<length; i++)
	{
		Send_Byte(pbuff[i]);
		
		answer_check = Check_answer();
		if (!answer_check)
		{
			I2C_stop();
			return -1;
		}

	}

	I2C_stop();
	return 0;
}

int CSample1Dlg::receive_data(int address, int regaddress, int length, unsigned char *pbuff)
{
	int i;
	bool answer_check;
	
	I2C_start();
	Send_Byte((address & 0xfe));
	answer_check = Check_answer();
	if (!answer_check)
	{
		I2C_stop();
		return -1;
	}

	Send_Byte(regaddress);
	answer_check = Check_answer();
	if (!answer_check)
	{
		I2C_stop();
		return -1;
	}

	I2C_stop();

	I2C_start();

	Send_Byte(address | 0x01);
	answer_check = Check_answer();
	if (!answer_check)
	{
		I2C_stop();
		return -1;
	}


	for (i=0; i<length; i++)
	{
		pbuff[i] = unsigned char(Receive_Byte());

		if( i==length-1)
			Send_noanswer();
		else
			Send_answer();
	}
//	Send_noanswer();
	I2C_stop();
	return 0;
}

void CSample1Dlg::OnRemove() 
{
	// TODO: Add your control notification handler code here
	ShutdownWinIo();
	//RemoveWinIoDriver();
}