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*       divio NW812 PCAM DRIVER INSTALLATION GUIDE                     *
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1. Introduction:
   divio NW812 PC Camera is a Windows Plug and Play product which is composed
   of three device, "USB Composite Device", "VGA PC Camera video 812", and 
   "USB Audio Device". Depending on different Windows OS and OEM custmization,
   the real names may be different from above. The driver can be installed 
   through plug and play procedure. 
  
   This section  consists of two parts: 
   A. First-time Installation: for first-time installing a divio PC 
      Camera on your system.
   B. Updating Driver: If a previous version of the driver is installed 
      on your system, please follow this part of instructions.

   The driver configuration is defined in the the pcam812v.inf, pcam812a.inf 
   and pcam812c.inf file. OEM customer musts change the default settings to match 
   their hardware configuration before releaseing the software to the end users.
   Use an Editor to change the settings according to the instructions provided 
   inside the individual .inf file.

   This document is eligible for divio PC Camera driver 4.0.0.19 and all
   later versions.
  

2. Driver Installation Procedure
	Note : Before you start the installation, please make sure the Registry value
	initialized in "pcam812v.inf" are correct to the corresponding sensor type.

        SensorType:  	1 – Toshiba VGA CMOS sensor
			2 – HP VGA CMOS sensor

 A. First-time Installation:
   1. Create a directory in your hard disk (C:\PCAM, for instance), and
      copy all the files into it.
   2. Plug in your PC camera. Windows system shows "New Hardware Found".
   3. Follow the Windows instructions to setup the driver. When asked
      the new driver location, choose "Specify a location" and select
      "driver" subdirectory under the directory you create in step 1.
   4. The Windows system will use pcam812V.inf to setup the 812 video device.
      On Windows 98 and Me the Windows system will also prompt to specify
      the location for 812 Composite and Audio Device. Use pcam812c.inf and
      pcam812a.inf respectively for installing them.
   5. Run demo application (divpcam.exe) under "bin" subdirectory to see
      if the new driver works. 
  
   Note: On Windows 98, the user need to reboot the system in order to get
     the Audio Device to run correctly for the first time installation. This
     issue can be avoided if the end user updates the Windows DirectX to 
     the latest version from http://www.microsoft.com/windows/directx/default.asp
     before installing the NW812 driver.
 

 B. Updating Driver:
   1. Make sure NW812 Device is plugged in.
   2. Go to "Add/Remove Program" under Control Panel;
    and then select "VGA PC Video Camera 812" entry to remove all installed software components.
    All files and Windows registry keys are totally cleaned-up from the system.
   3. Disconnect the device. Reboot the system if necessary.
   4. Connect the device again and follow the installation procedure to install the
     device again. This time use the new driver for installation 

   Note: We need to update the driver for all three devices, i.e. Audio, Video and Composite
     together.



3. Usage divio Demo Application (divpcam.exe) with DirectShow API;
   1. Run divpcam.exe from "bin" directory to launch the application.
   2. Click Menu "Devices", choose "PC Camera Capture". If you cannot
      see any image, please close it and repeat 1).
   3. If there is no image or wrong image, click Menu "Device Test",
      choose "ColorBar" to test the chip. If there is a color bar, there
      may be some errors in USB transmission. If there is still no image
      or wrong image, there may be some errors in Board level or driver
      level. 
   4. If the image is not in right color(e.g. too red, too green etc.),
      click Menu "Options", choose "Video Capture Filter". Face the
      camera to a white paper or white wall, then choose tab
      "Advanced Control" and click "Auto" checkbox in "White Balance"
      Group to do Auto-whitebalancing. 
   5. Click Menu "Options", choose "Video Capture Pin". Change the size 
      to 640x480.
   6. Click Menu "Options", choose "Video Capture Filter". Choose tab 
      "Image Control" and you can do some basic adjustment.
   7. If you need fine-tuning the image processing parameters in NW812.
      Click Menu "Options", choose "PCAM Register". You can use the
      register editor to change the register value of the device. For
      detail register value information, please see the NW801 or NW812
      PC Camera Engine Technical Manual. 
   8. Click Menu "Capture", choose "StartCapture" and assign the 
      destination file to capture video into AVI file. choose
      "StopCapture" when you want to stop.


4. Minimum PC System Requirements:
   1. divio PCAM evaluation board or equivalent USB PC camera;
   2. AMD K6 CPU or Intel Pentium 600MHz or above CPU;
   3. USB Port;
   4. Windows 98 or above Operating System;


5. Uninstallation:
    Go to "Add/Remove Program" under Control Panel;
    and then select "VGA PC Video Camera 812" entry to remove all installed software components.
    All files and Windows registry keys are totally cleaned-up from the system.

    Important Note: To remove the device clear, we need to remove Audio, Video and Composite device all 
    together. Please go to "Add/Remove Program" under Control Panel and select 
    "VGA PC Video Camer 812" to do that. We don't recommend to do removal in "Device Manager".


Please visit our web pages at http://www.divio.com/ to see the latest
support information and check out the current PCAM driver software.
   
Email your questions to our technical support team at 
<support@divio.com> or fax to +1-408-328-3399.

-----------------------------------
   divio Inc.
   441 De Guigne Drive
   Sunnyvale, CA 94085
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