madint.c

16 relay output channels and 16 isolated digital input channels LED indicators to show activated

                (LPT_FAIIntScanStart)&ptFAIIntScanStart)) != 0)
            {
                DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
                MessageBox(hWnd,(LPCSTR)szErrMsg,"Driver Message",MB_OK);
                GlobalUnlock(hBuf);
                GlobalUnlock(hUserBuf);
                GlobalFree(hBuf);
                GlobalFree(hUserBuf);
                DRV_DeviceClose((LONG far *)&DriverHandle);
                return 0;
            }

            gwCyclicCount = 0;

            // if event feature is enabled , then create one thread.
            if (gwEvtFlag)
            {
                hThreadHandle = CreateThread(0, 0,
                    (LPTHREAD_START_ROUTINE) UserThread,
                    0, 0, (LPDWORD)&dwThreadID);
            }

            Sleep(0);

            EnableMenuItem(hMenu, IDM_RUN, MF_DISABLED | MF_BYCOMMAND);

            // Enable stop and status buttons
            EnableWindow(hwndStopButton, TRUE);
            EnableWindow(hwndStatusButton, TRUE);

            return 0;

            //end IDM_RUN

        case IDC_STOPBUTTON:            

            // Disable stop and status buttons
            EnableWindow(hwndStopButton, FALSE);
            EnableWindow(hwndStatusButton, FALSE);

            // Step 1: Stop A/D conversion for high speed
            if ((ErrCde = DRV_FAITerminate(DriverHandle)) != 0)
            {
                DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
                MessageBox(hWnd,(LPCSTR)szErrMsg,"Driver Message",MB_OK);
                GlobalUnlock(hBuf);
                GlobalUnlock(hUserBuf);
                GlobalFree(hBuf);
                GlobalFree(hUserBuf);
                DRV_DeviceClose((LONG far *)&DriverHandle);  
				return 0;
            }
			if (gwEvtFlag == 0)
			{
				adTerminateEvent();
			}
            return 0;

        case IDC_STATUSBUTTON:

            // Get Interrupt transfer status
            ptFAICheck.ActiveBuf = &gwActiveBuf;
            ptFAICheck.stopped   = &gwStopped;
            ptFAICheck.retrieved = &gulRetrieved;
            ptFAICheck.overrun   = &gwOverrun;
            ptFAICheck.HalfReady = &gwHalfReady;

            if ((ErrCde = DRV_FAICheck(DriverHandle,
                (LPT_FAICheck)&ptFAICheck)) != 0)
            {
                DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
                MessageBox(hWnd,(LPCSTR)szErrMsg,"Driver Message",MB_OK);
                GlobalUnlock(hBuf);
                GlobalUnlock(hUserBuf);
                GlobalFree(hBuf);
                GlobalFree(hUserBuf);
                DRV_DeviceClose((LONG far *)&DriverHandle);
                return 0;
            }
            else
            {   // Display the status of the A/D conversion
                sprintf(szDest, "Cyclic Counts: %d\n", gwCyclicCount);
                if (gwHalfReady == 0)
                    strcpy(szTemp, "Buffer : not  ready\n");
                else if (gwHalfReady == 1)
                    strcpy(szTemp, "Buffer : half ready\n");
                else if (gwHalfReady == 2)
                    strcpy(szTemp, "Buffer : full ready\n");
                else
                    strcpy(szTemp, "Buffer : unknow \n");
                strcat(szDest, szTemp);
                ratio = 100.0 * gulRetrieved / gulConvNum;
                szStr = fcvt((double)ratio, 0, &dec, &sign);
                strcat(szDest, "Finish:  ");
                strcat(szDest, szStr);
                strcat(szDest, "%...");
                MessageBox(hWnd,(LPCSTR)szDest, "Check Status", MB_OK);
            }

            return 0;
        }

    case WM_DESTROY:

        PostQuitMessage(0);
        break;

    default:
        return (DefWindowProc(hWnd, message, wParam, lParam));
    }

    return ((LONG)NULL);
}

//------------------------------------------------------------------
void UserThread()
{
    USHORT usEventType;
    LONG  ErrCde;
    DWORD TickValue;
    char szCounter[80];//wang.yu added
    ULONG gulIntCounter = 0;//wang.yu added
	ULONG gulBfChgCounter = 0;//wang.yu added
    ULONG gulOverrunCounter = 0;//wang.yu added
    HDC hdc;//wang.yu added


    TickValue = GetTickCount();
    TickValue = TickValue + 500000;
    hdc = GetDC( hWnd );//wang.yu added
    InvalidateRect( hWnd, NULL, TRUE );//wang.yu added
    UpdateWindow( hWnd );//wang.yu added


    while(TickValue > GetTickCount())
    {
        // Check message
        ptCheckEvent.EventType = &usEventType;
        ptCheckEvent.Milliseconds = 5000;

        if ((ErrCde = DRV_CheckEvent(DriverHandle,
            (LPT_CheckEvent)&ptCheckEvent)) != 0)
        {
            MessageBox(hWnd,"Check Event Error !","Thread Message",MB_OK);
            return ;
        }

        // Process interrupt event
        if (usEventType & ADS_EVT_INTERRUPT)
		{
			gulIntCounter++;//wang
            adInterruptEvent();
		}
        // Process buffer change event
        if (usEventType & ADS_EVT_BUFCHANGE)
		{
			gulBfChgCounter++;//wang.yu added
            adBufChangeEvent();
		}
        // Process overrun event
        if (usEventType & ADS_EVT_OVERRUN)
		{
			gulOverrunCounter++;//wang.yu added
            adOverrunEvent();
		}
        // Process terminate event
        if (usEventType & ADS_EVT_TERMINATED)
        {
			gulIntCounter++;//wang.yu added
            adTerminateEvent();
            return ;
        }
		//wang.yu added to display the interrupt status
		sprintf( szCounter, "Interrupt Counter = %4d\n", gulIntCounter );
		TextOut( hdc, 300, 50, szCounter, 24 );  
		sprintf( szCounter, "Buffer change Counter = %4d\n", gulBfChgCounter );
		TextOut( hdc, 300, 70, szCounter, 28 );
		sprintf( szCounter, "Overrun Counter = %4d\n", gulOverrunCounter );
		TextOut( hdc, 300, 90, szCounter, 22 );
		UpdateWindow( hWnd );
		//wang.yu added end
    }

    MessageBox(hWnd,"Never Get Any Event !","Thread Message",MB_OK);
}

//------------------------------------------------------------------
void adInterruptEvent()
{
    return;
}

//------------------------------------------------------------------
void adBufChangeEvent()
{
    ptFAICheck.ActiveBuf = &gwActiveBuf;
    ptFAICheck.stopped   = &gwStopped;
    ptFAICheck.retrieved = &gulRetrieved;
    ptFAICheck.overrun   = &gwOverrun;
    ptFAICheck.HalfReady = &gwHalfReady;

    if ((ErrCde = DRV_FAICheck(DriverHandle,
         (LPT_FAICheck)&ptFAICheck)) != 0)
    {
        DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
        MessageBox(hWnd,(LPCSTR)szErrMsg,"Thread Message",MB_OK);
        return ;
    }

    if (gwHalfReady == 1)  // first ready
    {
        ptFAITransfer.ActiveBuf = 0;   // single buffer
        ptFAITransfer.DataType = gwDataType;
        ptFAITransfer.start    = 0;
        ptFAITransfer.count    = gulConvNum/2;
        ptFAITransfer.overrun  = &gwOverrun;

        if ((ErrCde = DRV_FAITransfer(DriverHandle,
            (LPT_FAITransfer)&ptFAITransfer)) != 0)
        {
            DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
            MessageBox(hWnd,(LPCSTR)szErrMsg,"Thread Message",MB_OK);
            return ;
        }
    }
    else if (gwHalfReady == 2) // second half ready
    {
        ptFAITransfer.ActiveBuf = 0;   // single buffer
        ptFAITransfer.DataType = gwDataType;
        ptFAITransfer.start    = gulConvNum/2;
        ptFAITransfer.count    = gulConvNum/2;
        ptFAITransfer.overrun  = &gwOverrun;

        if ((ErrCde = DRV_FAITransfer(DriverHandle,
            (LPT_FAITransfer)&ptFAITransfer)) != 0)
        {
            DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
            MessageBox(hWnd,(LPCSTR)szErrMsg,"Thread Message",MB_OK);
            return ;
        }

        gwCyclicCount ++;
    }

    return;
}
//------------------------------------------------------------------
void adOverrunEvent()
{
    // clear overrun
    if ((ErrCde = DRV_ClearOverrun(DriverHandle)) != 0)
    {
        DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
        MessageBox(hWnd,(LPCSTR)szErrMsg,"Thread Message",MB_OK);
        return ;
    }

    return;
}
//------------------------------------------------------------------
void adTerminateEvent()
{
    // Disable stop and status buttons
    EnableWindow(hwndStopButton, FALSE);
    EnableWindow(hwndStatusButton, FALSE);
   
    // Get real voltage of buffer from driver
    ptFAITransfer.ActiveBuf = 0;   // single buffer
    ptFAITransfer.DataType = gwDataType;
    ptFAITransfer.start    = 0;
    ptFAITransfer.count    = gulConvNum;
    ptFAITransfer.overrun  = &gwOverrun;

    if ((ErrCde = DRV_FAITransfer(DriverHandle,
        (LPT_FAITransfer)&ptFAITransfer)) != 0)
    {
        DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg);
        MessageBox(hWnd,(LPCSTR)szErrMsg,"Thread Message",MB_OK);
        return ;
    }

    // Display data
    DialogBox (hInstance, MAKEINTRESOURCE(IDD_DATA),
        hWnd, lpfnShowDataDlgProc) ;

    // Free buffer
    GlobalUnlock(hBuf);
    GlobalUnlock(hUserBuf);
    GlobalFree(hBuf);
    GlobalFree(hUserBuf);

    // Close driver
    DRV_DeviceClose((LONG far *)&DriverHandle);

    EnableMenuItem(hMenu, IDM_RUN, MF_ENABLED | MF_BYCOMMAND);

    return;
}
//------------------------------------------------------------------
int PhyChanToLogChan(DEVCONFIG_AI *pDevCfg,int phychan)
{
	int i;
	int result = 0;
	
	if (pDevCfg->ulChanConfig == 1)
	{//For ISA Cards,when differetial, Phychan is LogChan
		result = phychan;
		return result;
	}

	for(i = 0; i<=min(phychan,31);i++)
	{
		if(pDevCfg->ulChanConfig & (1<<i))
			i++;
		result++;
	}

	if(phychan >= 32)
	{
		for(i = 32; i<=phychan;i++)
		{
			if(pDevCfg->ulChanConfigEx[0] & (1<<(i-32)))
				i++;
			result++;
		}
	}
	return result - 1;
}
//------------------------------------------------------------------
int GetMaxLogChanNum(DEVCONFIG_AI * pDevCfg,DEVFEATURES *pDevFeature)
{
	int i;
	int result = 0;

	if (pDevCfg->ulChanConfig == 1)
	{
		return pDevFeature->usMaxAIDiffChl;
	}

	for(i = 0; i< pDevFeature->usMaxAISiglChl ; i++)
	{
		if(i<32)
			if(pDevCfg->ulChanConfig & (1<<i))
				i++;
		else
			if(pDevCfg->ulChanConfigEx[0] & (1<<(i-32)))
				i++;
		result++;
	}
	return result;
}