lpc214x_muchdlg.cpp

周立功 214x pack 配套光盘

// LPC214x_MuchDlg.cpp : implementation file
//

#include "stdafx.h"
#include "LPC214x_Much.h"
#include "LPC214x_MuchDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CLPC214x_MuchDlg dialog

CLPC214x_MuchDlg::CLPC214x_MuchDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CLPC214x_MuchDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLPC214x_MuchDlg)
	m_SendByte = _T("");
	m_Disp = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CLPC214x_MuchDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLPC214x_MuchDlg)
	DDX_Text(pDX, IDC_SENDBYTE, m_SendByte);
	DDX_Text(pDX, IDC_DISP, m_Disp);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CLPC214x_MuchDlg, CDialog)
	//{{AFX_MSG_MAP(CLPC214x_MuchDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDSEND, OnSend)
	ON_EN_CHANGE(IDC_SENDBYTE, OnChangeSendByte)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLPC214x_MuchDlg message handlers

BOOL CLPC214x_MuchDlg::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_SendByte = "AB";
	UpdateData(FALSE);

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

void CLPC214x_MuchDlg::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 CLPC214x_MuchDlg::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 CLPC214x_MuchDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

//////////////下面为一些数据类型转换函数/////////////////////////////////////

/***********************************************************
** 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: void StrToHex(CString str,__int16 len,unsigned char *databuff)
** 功能描述: 将一串字符串转换为一串两位的16进制数
** 输　  入: CString   str              : 输入的字符串
			 __int16   outlen           : 输出的字节的长度
** 输    出: unsigned char  *databuff   : 输出的16进制数串
** 例    如： "FF" - > 0xFF ; "1236" - > 12 36
** 备    注：len <= 256
************************************************************/
void StrToHex(CString str,__int16 outlen,unsigned char *databuff)
{
	__int16 temp;

	for (__int16 i = 0; i < outlen; i++)
	{
		CString StrChar = str.Mid(2 * i,2);			//取出其中的两个字符
		sscanf(StrChar,"%x",&temp);			//转换为16进制数
		databuff[i] = (unsigned char)temp;
	}
}

/***********************************************************
** 函数名称: OnChangeSendByte
** 功能描述: 格式化输入的数据
************************************************************/
void CLPC214x_MuchDlg::OnChangeSendByte() 
{
	char tmp;								
    __int16 TxtLen = 0;
	
	UpdateData(TRUE);						//取得数据
	TxtLen = m_SendByte.GetLength();
	
	if (TxtLen == 0) return;
	if (TxtLen > 2)							//编辑框输入字节不允许超过167字节
	{
		m_SendByte.Delete(TxtLen -1);
	}
	else
	{
		tmp = m_SendByte.GetAt(TxtLen - 1);
		if ((tmp > 'A' - 1) && (tmp < 'F' + 1)||
			(tmp > 'a' - 1) && (tmp < 'f' + 1)||
			(tmp > '0' - 1) && (tmp < '9' + 1))
		{									//只许输入0 ~ 9 ;A(a) ~ F(f)
			m_SendByte.MakeUpper();			//转为大字
		}
		else
		{
			m_SendByte.Delete(TxtLen - 1);    //否则不接收
		}
	}
	
	UpdateData(FALSE);
	UpdateData(TRUE);
	((CEdit *)GetDlgItem(IDC_SENDBYTE))->SetSel(m_SendByte.GetLength(),
		m_SendByte.GetLength(),TRUE);	
	
}



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

  下面处理 LPC214x USB 相关部分
  
*************************************************************************************/


//第一步: 加入 EasyUSB214x.dll 动态库头文件
#include "EasyUSB214x.h"						//包含头文件


/***********************************************************
** 函数名称: void CLPC214x_MuchDlg::OnSend()
** 功能描述: 按 "发送" 按键触发的事件 
************************************************************/
void CLPC214x_MuchDlg::OnSend() 
{
	unsigned char sendbuf[4096],recbuf[4096];
	int i;
	
	UpdateData(TRUE);

	if (m_SendByte.GetLength() != 2)	
	{											 //检查用户是否输入了两个字节
		MessageBox("请输入要发送的字节");
		return;
	}
	
	unsigned char Inbyte;					
	StrToHex(m_SendByte,1,&Inbyte);				 //将用户输入的字符串转换为16进制字节

	for (i = 0; i < sizeof(sendbuf); i++)
	{
		sendbuf[i] = Inbyte;					 //16进制字节放进发送缓冲区
		recbuf[i] = 0;							 //清空接收缓冲区
	}

	/*******************  下面开始使用动态库 ***********************/
	int ret;
	unsigned char cmd[2],ack;
	cmd[0] = sizeof(sendbuf) / 256;				 //需要发送的字节数量的长度的高 8 位
	cmd[1] = sizeof(sendbuf) % 256;				 //                          低 8 位


//第二步: 用逻辑端点1, 告诉单片机: PC机将用逻辑端点2发送的字节数
	ret = WriteData214x(1, cmd, 2, 1000);
	if (ret != 2)
	{
		MessageBox("逻辑端点 1 发送数据错误!");
		return;
	}


//第三步: 接收单片机的应答, 应答为一个字节: 0x01, 确保单片机已收到 cmd[] 这两个字节
	ret = ReadData214x(0, &ack, 1, 1000);
	if (ret != 1)
	{
		MessageBox("逻辑端点 1 接收数据错误!");
		return;
	}
	if (ack != 1)
	{
		MessageBox("逻辑端点 1 应答错误");
		return;
	}


//第四步: 用逻辑端点2, 发送大量数据
	ret = WriteData214x(3, sendbuf, sizeof(sendbuf), 1000);
	if (ret != sizeof(sendbuf))
	{
		MessageBox("逻辑端点 2 发送数据错误!");
		return;
	}


//第五步: 用逻辑端点2, 接收来自 USB 设备的大量数据
	ret = ReadData214x(2, recbuf, sizeof(sendbuf), 1000);
	if (ret != sizeof(sendbuf))
	{
		MessageBox("逻辑端点 2 接收数据错误");
		return;
	}


//第六步: 校验收发数据是否一致
	if (memcmp(sendbuf, recbuf, sizeof(sendbuf)) != 0)
	{
		MessageBox("接收到的数据与发送的不同!");
		return;
	}


	//显示收到的字节
	m_Disp = "";
	for (i = 0; i < sizeof(sendbuf); i++)
		m_Disp += IntToASCII(recbuf[i]) + " ";

	UpdateData(FALSE);

	MessageBox("数据收发正确完成!");
}