motordlg.cpp

利用vc编写的通过单片机控制三个步进电机的程序

// MotorDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Motor.h"
#include "MotorDlg.h"
#include "const.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CMotorDlg dialog


CMotorDlg::CMotorDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMotorDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMotorDlg)
	m_StepsA = 0;
	m_StepsB = 0;
	m_StepsC = 0;
	m_Steps = 0;
	//}}AFX_DATA_INIT
	SetupComPort();

}


void CMotorDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMotorDlg)
	DDX_Control(pDX, IDC_COMBO_MOTORSEL, m_MotorSel);
	DDX_Text(pDX, IDC_EDIT_STEPA, m_StepsA);
	DDX_Text(pDX, IDC_EDIT_STEPB, m_StepsB);
	DDX_Text(pDX, IDC_EDIT_STEPC, m_StepsC);
	DDX_Text(pDX, IDC_EDIT_STEPS, m_Steps);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CMotorDlg, CDialog)
	//{{AFX_MSG_MAP(CMotorDlg)
	ON_WM_CLOSE()
	ON_CBN_SELCHANGE(IDC_COMBO_MOTORSEL, OnSelchangeComboMotorsel)
	ON_BN_CLICKED(IDC_BUTTON_MOVE, OnButtonMove)
	ON_BN_CLICKED(IDC_BUTTON_RESET, OnButtonReset)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMotorDlg message handlers


void CMotorDlg::SetupComPort()
{
	/*
	hCom=CreateFile("COM4",						//串口号设置
					GENERIC_READ|GENERIC_WRITE,
					0,
					NULL,
					OPEN_EXISTING,
					FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED,
					NULL);
	if(hCom==(HANDLE)-1)
	{
		AfxMessageBox("打开COM失败！");
	}
	else 
		AfxMessageBox("已打开串口 9600！");
		*/
	CString strComNum[7]={"COM2","COM3","COM4","COM5","COM6","COM7","COM8"};
	CString strTemp="已成功打开";
	int i=1;
	do{
	   hCom=CreateFile(strComNum[i],		//串口号设置
					GENERIC_READ|GENERIC_WRITE,
					0,
					NULL,
					OPEN_EXISTING,
					FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED,
					NULL);
	   i++;
	   if(i==7)
	   {
		AfxMessageBox("打开COM失败,请检查串口线是否插上!");
	    return;
	   } 
	}
	while(hCom==(HANDLE)-1);

    if(i<7)
	{
		strTemp += strComNum[i-1];
		AfxMessageBox(strTemp);
	}


	SetupComm(hCom,100,100);

	DCB dcb;
	GetCommState(hCom,&dcb);
	dcb.BaudRate=(DWORD)9600;    //波特率设置
	dcb.ByteSize=8;
	dcb.StopBits=ONESTOPBIT;
	SetCommState(hCom,&dcb);
	PurgeComm(hCom,PURGE_TXCLEAR|PURGE_RXCLEAR);
}

void CMotorDlg::OnClose() 
{
	// TODO: Add your message handler code here and/or call default
	CloseHandle(hCom);
	CDialog::OnClose();
}

void CMotorDlg::WriteComPort()
{
	OVERLAPPED m_osWrite;
	memset(&m_osWrite,0,sizeof(OVERLAPPED));
	m_osWrite.hEvent=CreateEvent(NULL,TRUE,FALSE,NULL);
	
	DWORD dwBytesWrite=FRAM_LENGTH; //要发送的数据的长度
	COMSTAT ComStat;
	DWORD dwErrorFlags;
	BOOL bWriteStat;
	ClearCommError(hCom,&dwErrorFlags,&ComStat);
	bWriteStat=WriteFile(hCom,m_SendBuf,dwBytesWrite,&dwBytesWrite,&m_osWrite);

	if(!bWriteStat)
	{
		if(GetLastError()==ERROR_IO_PENDING)
		{
			WaitForSingleObject(m_osWrite.hEvent,1000);
		}
	}
}

void CMotorDlg::OnSelchangeComboMotorsel() 
{
	// TODO: Add your control notification handler code here
	unsigned int uID = m_MotorSel.GetCurSel();
	switch(uID) //根据选择来确定操作的电机
	{
	case 0 : m_motor_num = MOTORA;
			 break;
	case 1 : m_motor_num = MOTORB;
			 break;
	case 2 : m_motor_num = MOTORC;
			 break;
	}
}

void CMotorDlg::OnButtonMove() 
{
	// TODO: Add your control notification handler code here
 	UpdateData(TRUE);

	unsigned int uID=GetCheckedRadioButton(IDC_RADIO_P,IDC_RADIO_N);
	CString Str;
	GetDlgItemText(uID,Str);
	
	if("正"==Str)
		m_direction = ROTATE_P ;
	else if("负"==Str)
		m_direction = ROTATE_N ;

	m_SendBuf[0] = 'S';
	m_SendBuf[1] = MOVE_SLOW;
	m_SendBuf[2] = m_motor_num;
	m_SendBuf[3] = m_direction;
	m_SendBuf[4] = 0;
	m_SendBuf[5] = ((unsigned int)m_Steps)/256;
	m_SendBuf[6] = ((unsigned int)m_Steps)%256;
	m_SendBuf[7] = 'S';

	//以下为更新ABC 的转角的显示数字
	switch(m_motor_num) //根据选择来确定操作的电机
	{
	case MOTORA : if(ROTATE_P==m_direction )
					   m_StepsA  += m_Steps;
				  else if(ROTATE_N==m_direction )
					  m_StepsA  -= m_Steps;
				  break;
	case MOTORB : if(ROTATE_P==m_direction )
					   m_StepsB  += m_Steps;
				  else if(ROTATE_N==m_direction ) 
					  m_StepsB  -= m_Steps;
			      break;
	case MOTORC : if(ROTATE_P==m_direction )
					   m_StepsC  += m_Steps;
				  else if(ROTATE_N==m_direction )
					  m_StepsC  -= m_Steps;
			      break;
	}
	UpdateData(FALSE);
	
	WriteComPort();//把m_SendBuf[8]从串口发送出去

}

void CMotorDlg::OnButtonReset() 
{
	// TODO: Add your control notification handler code here
	m_SendBuf[0] = 'S';
	m_SendBuf[1] = RESET;
	m_SendBuf[7] = 'S';
	WriteComPort();//把m_SendBuf[8]从串口发送出去
}