set7710dlg1.cpp

CAN__组建现场总线系统设计技术(光盘)

// Set7710Dlg1.cpp : implementation file
//

#include "stdafx.h"
#include "VCStyle.h"
#include "Set7710Dlg1.h"

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

#include "sja\\sjamacro.h"
#include "sja\\sjaexport.h"
/////////////////////////////////////////////////////////////////////////////
// Set7710Dlg dialog

//static UINT scale = 0;
static UINT scale;
static BOOL unipolar = TRUE;
static UINT sample_rate = 10;
extern UINT g_scale;

Set7710Dlg::Set7710Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(Set7710Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(Set7710Dlg)
	m_unipolar = unipolar;
	m_addr = 7;
	m_sample_rate = sample_rate;
	m_scale = scale;
	//}}AFX_DATA_INIT
}


void Set7710Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(Set7710Dlg)
	DDX_Check(pDX, IDC_CHECK_UNIPOLAR, m_unipolar);
	DDX_Text(pDX, IDC_EDIT_ADDR, m_addr);
	DDX_Text(pDX, IDC_EDIT_SAMPLERATE, m_sample_rate);
	DDX_CBIndex(pDX, IDC_COMBO_SCALE, m_scale);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(Set7710Dlg, CDialog)
	//{{AFX_MSG_MAP(Set7710Dlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// Set7710Dlg message handlers
void Set7710Dlg::OnOK() 
{
	// TODO: Add extra validation here
	UpdateData();
	scale = m_scale;
	unipolar = m_unipolar;
	sample_rate = m_sample_rate;
	// 发送设置命令
	BYTE buf[11];
	buf[0] = 8;//fixed
	buf[1] = m_addr;
	buf[2] = 0;//fixed
	buf[3] = 0;//channel.fixed
	buf[4] = 0x10;//command type.fixed
	buf[5] = scale;//放大倍数
	buf[6] = unipolar?1:0;
	//code = 10M / (512 * f)
	UINT code = 10*1000*1000/(512 * sample_rate);
	buf[7] = (BYTE)(code>>8);
	buf[8] = (BYTE)code;
	
	Transmit(buf);

	g_scale = 1<<scale;

	CDialog::OnOK();
}