sdexampledlg.cpp

文件及文件夹说明 ==========================================================================================

// SDExampleDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SDExample.h"
#include "SDExampleDlg.h"
#include "EraseBlkDlg.h"
#include "CommPort.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()

/////////////////////////////////////////////////////////////////////////////
// CSDExampleDlg dialog

CSDExampleDlg::CSDExampleDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSDExampleDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSDExampleDlg)
	m_BlockAddr = 0;
	m_DispResult = _T("");
	m_blknum = _T("");
	m_blksize = _T("");
	m_usize = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSDExampleDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_EDIT, m_Edit);
	//{{AFX_DATA_MAP(CSDExampleDlg)
	DDX_Control(pDX, IDC_INITSD, m_InitSD);
	DDX_Control(pDX, IDC_WRITE, m_WriteBlock);
	DDX_Control(pDX, IDC_READ, m_ReadBlock);
	DDX_Control(pDX, IDC_SELBAUD, m_SelBaud);
	DDX_Control(pDX, IDC_SELCOMM, m_SelComm);
	DDX_Text(pDX, IDC_BLKADDR, m_BlockAddr);
	DDX_Text(pDX, IDC_DISPRESULT, m_DispResult);
	DDX_Text(pDX, IDC_BLKNUM, m_blknum);
	DDX_Text(pDX, IDC_BLKSIZE, m_blksize);
	DDX_Text(pDX, IDC_USIZE, m_usize);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSDExampleDlg, CDialog)
	//{{AFX_MSG_MAP(CSDExampleDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_OPENCOMM, OnOpenComm)
	ON_BN_CLICKED(IDC_READ, OnReadBlock)
	ON_BN_CLICKED(IDC_WRITE, OnWriteBlock)
	ON_BN_CLICKED(IDC_ERASE, OnErase)
	ON_BN_CLICKED(IDC_INITSD, OnInitSD)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSDExampleDlg message handlers

BOOL CSDExampleDlg::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
	m_SelComm.AddString("串口1");
	m_SelComm.AddString("串口2");
	m_SelComm.SetCurSel(0);

	m_SelBaud.AddString("9600");
	m_SelBaud.AddString("19200");
	m_SelBaud.AddString("38400");
	m_SelBaud.AddString("57600");
	m_SelBaud.AddString("115200");
	m_SelBaud.SetCurSel(4);

	m_ReadBlock.EnableWindow(FALSE);
	m_WriteBlock.EnableWindow(FALSE);
//	m_EraseBlock.EnableWindow(FALSE);
	m_InitSD.EnableWindow(FALSE);
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CSDExampleDlg::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 CSDExampleDlg::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 CSDExampleDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}





/***********************************************************************

			下面为U盘操作部分

************************************************************************/

#define CMD_SD_INIT		   0x00					//初始化命令
#define CMD_SD_READ    	   0x01					//读命令
#define CMD_SD_WRITE   	   0x02					//写命令
#define CMD_SD_ERASE	   0x03					//擦除命令

#define CMD_DATA_RECV	   0x04					//数据接收命令
#define CMD_DATA_TRANS	   0x05					//数据发送命令

#define ERROR_COMM		   0xFF					//串口错误码:通信失败

#define UART_BUFF_LEN	   8
#define FRAME_LEN_RECV	   (UART_BUFF_LEN - 1)  //每次接收的数据长度
#define	FRAME_LEN_SEND	   (UART_BUFF_LEN - 3)	//每次发送的数据长度


/* 定义一个串口通信类 */
CCommPort Comm;

/***********************************************************
** 函数名称: CString IntToASCII(unsigned char input)
** 功能描述: 将两位的无符号整数转换为字符串
** 输　  入:   unsigned char input : 16进制数
** 输    出:   input  的字符串形式  
 
** 例    如： 0xFF - > "FF" 
************************************************************/
CString IntToASCII(unsigned char input)
{
	char temp[2];
	char exchange;
	CString output = "";		
	itoa(input,temp,16);		//结果高位放于temp[0],低位放于temp[1]
	
	if (temp[1] == 0)	        //因为如果input为0x0F 时，结果为 'F','0';	
	{						    //所以要交换一下temp[1]与temp[0]
		exchange = temp[1];
		temp[1]  = temp[0];
		temp[0]  = exchange;
	}	
	
	if (temp[0] == 0)  output += "0";
	   else	           output += temp[0];
	   
	if (temp[1] == 0)  output += "0";
	   else            output += temp[1];
	   
	   return output;
}
/***************************************************************
** 函数名称:  int OnInitSD()		
** 功能描述:  初始化U盘									
** 输　  入:  无		
** 输 　 出:  无	  		
***************************************************************/
void CSDExampleDlg::OnInitSD() 
{
	BYTE sendBuf[UART_BUFF_LEN];
	
	sendBuf[0] = CMD_SD_INIT;							/* 初始化U盘命令 */
	int ret;
	ret = Comm.SendData(sendBuf, NULL, UART_BUFF_LEN, 500, 1, 0, FALSE);	
	if (ret != 0)
	{
		m_DispResult = "通信错误";
		UpdateData(FALSE);
		return;
	}
	
	ret = Comm.ReadBlock(sendBuf, 8, 500);					/* 读执行结果 */
	if ((ret != 0) || (sendBuf[0] != CMD_SD_INIT))
	{
		m_DispResult = "通信错误";
		UpdateData(FALSE);
		return;
	}

	if (sendBuf[1] != 0)								/* 判断执行是否成功 */
	{
		m_DispResult = "U盘初始化失败,错误码为:" + IntToASCII(sendBuf[1]);
		UpdateData(FALSE);
		return;
	}	

	/* 执行到此, 说明初始化U盘成功 */
	m_DispResult = "U盘初始化成功,可以对卡操作了!";

	int blknum = (sendBuf[2] << 24) + (sendBuf[3] << 16) 
				 + (sendBuf[4] << 8) + sendBuf[5];

	m_blknum.Format("%d",blknum);

	int blksize = (sendBuf[6] << 8) + sendBuf[7]; 
	m_blksize.Format("%d",blksize);

	float usize = (float)blknum * (float)blksize / 1000 / 1000;
	m_usize.Format("%f",usize);

	UpdateData(FALSE);

	m_ReadBlock.EnableWindow(TRUE);
	m_WriteBlock.EnableWindow(TRUE);
//	m_EraseBlock.EnableWindow(TRUE);
}


/***************************************************************
** 函数名称:  int SD_ReadBlock()		
** 功能描述:  命令下位机，将blockaddr的数据读到sd_buff缓冲区									
** 输　  入:  UINT32 blockaddr: 块地址		
** 输 　 出:  0:   正确    0xFF: 通信错误   > 0: 错误码		  		
***************************************************************/
int SD_ReadBlock(UINT32 blockaddr)
{
	BYTE sendBuf[UART_BUFF_LEN];
	
	sendBuf[0] = CMD_SD_READ;					/* U盘读命令 */
	sendBuf[1] = (BYTE)(blockaddr >> 24);
	sendBuf[2] = (BYTE)(blockaddr >> 16);
	sendBuf[3] = (BYTE)(blockaddr >> 8);
	sendBuf[4] = (BYTE)blockaddr;
	
	int ret;
	ret = Comm.SendData(sendBuf, NULL, UART_BUFF_LEN, 500, 1, 0, FALSE);	
	if (ret != 0)  return ERROR_COMM;

	ret = Comm.ReadBlock(sendBuf, 8, 500);			/* 读返回值 */
	if (ret != 0)								return ERROR_COMM;	//接收错误
	if (sendBuf[0] != CMD_SD_READ)				return ERROR_COMM;	//响应错误
	if (sendBuf[1] != 0)						return sendBuf[1];	//读操作错误
 
	return 0;
}


/***********************************************************************
** 函数名称:  int SD_WriteBlock()		
** 功能描述:  命令下位机，将sd_buff缓冲区的数据写入U盘的blockaddr块								
** 输　  入:  UINT32 blockaddr: 块地址		
** 输 　 出:  0:   正确    0xFF: 通信错误   > 0: 错误码	  		
***********************************************************************/
int SD_WriteBlock(UINT32 blockaddr)
{
	BYTE sendBuf[UART_BUFF_LEN];
	
	sendBuf[0] = CMD_SD_WRITE;										/* 写U盘命令 */
	sendBuf[1] = (BYTE)(blockaddr >> 24);
	sendBuf[2] = (BYTE)(blockaddr >> 16);
	sendBuf[3] = (BYTE)(blockaddr >> 8);
	sendBuf[4] = (BYTE)blockaddr;
	
	int ret;
	ret = Comm.SendData(sendBuf, NULL, UART_BUFF_LEN, 500, 1, 0, FALSE);	
	if (ret != 0)  return ERROR_COMM;
	
	ret = Comm.ReadBlock(sendBuf, 8, 500);
	if (ret != 0)							return ERROR_COMM;		//接收错误
	if (sendBuf[0] != CMD_SD_WRITE)			return ERROR_COMM;		//响应错误
	if (sendBuf[1] != 0)					return sendBuf[1];		//写操作错误
	
	return 0;
}