Atmel AT76C502A Manual de usuario

WLAN PC CARD (AR)

.........................................................................................

User Guide

Table of Contents

Section 1

Introduction ........................................................................................... 1-1

1.1 Package Contents.....................................................................................1-1

1.2 System Requirements...............................................................................1-1

1.3 AT76C502A Features ...............................................................................1-1

1.4 Firmware Features....................................................................................1-2

1.5 Driver Features .........................................................................................1-2

Section 2

Installation Overview............................................................................. 2-1

Section 3

Installation and Configuration Procedures Under Windows

98/Me/2000........................................................................................... 3-1

3.1 What You Need to Know About Windows 98/Me/2000.............................3-1

3.2 What You Will Need..................................................................................3-1

3.3 Installing the Application and Drivers Under Windows 98/Me/2000 .........3-1

3.4 Uninstall Procedure Under Windows 98/Me .............................................3-6

3.5 Uninstall Procedure Under Windows 2000 ...............................................3-7

Section 4

Configuration & Monitor Utility .............................................................. 4-1

4.1 How to Install the Configuration & Monitor Utility......................................4-1

4.2 Using the Configuration & Monitor Utility ..................................................4-1

4.3 How to Uninstall the Configuration & Monitor Utility .................................4-7

Section 5

Firmware Upgrade Utility ...................................................................... 5-1

5.1 Firmware Upgrade Utility ..........................................................................5-1

Section 1

Introduction

The ATMEL PCMCIA Fast-VNET-R (5V) based on ATMEL AT76C502A Wireless Media Access

Controller is a network card with a rate of 1, 2, 5.5, and 11 Mbps operating in the ISM

band using Direct Sequence Spread Spectrum (DSSS) transmission implementing the

IEEE 802.11b standard. For this card ATMEL currently provides Device Drivers for MS

Windows® 98/2000, and Windows® Me. ATMEL also provides tools for the configuration

and firmware upgrade of the cards. These tools, as well as the installation procedure for

the MS Windows 98/2000, and Windows Me operating systems are described in this

document.

To install the adapter and operate under an operating system two pieces of software are

needed. The first one is the driver, which provides the necessary mechanisms to the

operating system in order to use the adapter as any other networking adapter. The

driver communicates with the firmware using exchange of commands (Set MIB, Get

MIB, Scan, Sync, etc.). The other piece of software needed is the code written on the

MAC chip, which is responsible for the interface with the driver, and for the implementation

of the IEEE 802.11b functions.

1.1 Package

Contents

Please make sure that your received the following with your AT76C502A-Evaluation Kit:

• One (1) PCMCIA Fast-VNET-R (5V) card

• User Guide

• Firmware, Drivers, and Software Tools CD

1.2 System

Requirements

• Operating System: MS Windows 98/2000, Windows Me with Service Pack 4 or later

• Desktop PC or notebook PC with CD-ROM drive

1.3 AT76C502A

Features

AT76C502A based Fast-VNET adapters offer compliance with the IEEE 802.11b specification.

This feature allows them to communicate with wireless devices from other

manufacturers that support the standard. Among the features of the AT76C502A WLAN

MAC controller are the following:

– Wireless interface following the IEEE 802.11b standard supporting DSSS 2.4 GHz

wireless PHY

– Wireless LAN MAC Unit with ARM7TDMI RISC processor

– Integrated 128-byte transmit and 128-byte receive FIFOs, for wireless MAC layer

functions

– 16-bit PCMCIA bus interface

– Glueless SRAM interface for all MAC operations, supporting up to 16 MB of external

memory

– Integrated 6Kx32 bit internal SRAM, used for fast program code execution and

temporary storage of data

– Glueless Flash memory interface, supporting up to 16 MB on non volatile memory

for permanent storage of program code

– Enciphering/deciphering of wireless data by the implementation of the WEP

algorithm

– Supports 11, 5.5, 2, and 1 Mbps rates

1.4 Firmware

Features

The IEEE 802.11b firmware implementation for the AT76C502A-EK supports:

– Distributed Coordination Function

CSMA/CA

Backoff Procedure

NAV Management

ACK Procedure

Retransmission of unacknowledged frames

– RTS/CTS Handshake

– Duplicate Detection and Recovery

– Beacon Generation (ad-hoc mode)

– Probe Response (ad-hoc mode)

– Fragmentation and Reassembly

– Wired Equivalent Privacy Algorithm (WEP-40 bits, 128 bits)

– Auto Rate Fallback

– TSF synchronization

– Short Preamble

1.5 Driver Features The drivers for the AT76C502-EK support:

– Roaming

– Preferred AP

– Dynamic configuration

– Site Survey

– Preamble Type detection

– Firmware Upgrade

– Authentication Algorithm (Open System, Shared Key)

Section 2

Installation Overview

This is a quick step by step guide on how to install your PCMCIA Fast-VNET-R (5V) card.

Please follow the steps described below and refer to the appropriate sections for further

details:

• Power on the computer (laptop).

• Please make sure that you don’t insert your PCMCIA CARD yet.

• Install the drivers and application:

Insert the given Installation CD into your CD-Rom drive. Select the Utilities & Drivers

folder.

Locate the executable file “setup.exe” and double click it.

Follow the installation instructions from the installSheild Wizard by pressing the

“Next” button.

Choose the type of installation you are going to perform (Application Only, Application

& PCMCIA Drivers, Application & USB Drivers or Application & PCMCIA & USB

Drivers).

Give the destination path of where the application will be installed. To set the path

of your choice select Browse and then Next.

Choose the Mode of Operation (Ad-Hoc or Infrastucture):

In Ad-Hoc Mode, set the ESSID of all station participating to be the same and

choose the channel of operation.

In Insfrastucture Mode, set the ESSID to be the same with the ESSID of the AP to

which you will be associated with.

Confirm the current settings of ESSID, Network Mode and Utility directory and click

Next.

Finish the installation.

• Plug your PCMCIA card.

• The “Add New Hardware Wizard” automatically loads the Drivers.

• Refer to sections 3 for more details on the installation and configuration under

Windows 98/2000 and Windows Me. Section 4 gives detailed instructions on how to

use the Configuration Utility while section 5 given detailed instructions on how to use

the Firmware Upgrade Utility.

Upgrading your Wireless LAN Software when a new setup is released:

For Windows 98/Me

• Power on the computer (laptop).

• Uninstall the application by running the uninstall program.

• When prompted for reboot select “YES”.

• After rebooting run the new setup.exe.

• When the setup of the application (see instructions above) is completed, you can then

plug your PCMCIA card.

Note: If you select the ”Application Only ” Installation option the installation procedure

will only install the Utility while selecting any other option it will also install the

latest drivers for your wireless card without prompting you.

For Windows 2000

• Power on the computer (laptop).

• Uninstall the application by running the uninstall program.

• When prompted for reboot select “YES”.

• Run the new setup.exe.

• When the setup of the drivers and application (see instructions above) is completed,

you can then plug your PCMCIA card.

Section 3

Installation and Configuration

Procedures Under Windows

98/Me/2000

Use the procedures described in this chapter to install and configure the Fast-VNET

PCMCIA card under MS Windows 98/Me/2000.

3.1 What You Need

to Know About

Windows

98/Me/2000

Although similar in appearance, Windows 98/Me/2000 have different philosophies when

installing a new hardware.

Throughout this section it is assumed that you have a basic working knowledge of Windows

98/Me/2000 and of how to install new network cards on them. However, in this

paragraph, some specific features of Windows 98/Me/2000 are briefly explained.

Windows 98/Me/2000 operating system supports the “Plug & Play” feature. That means

that once you plug the Fast-VNET card for the very first time, the operating system will

detect the card and automatically install the driver assuming that you have already

installed the application utility.

Another feature is the “Hot Swapping”. With this feature, you can unplug and plug again

the card whenever you want.

3.2 What You Will

Need

During the installation, you may be prompted to load operating system files from the

Windows installation disk. Please have this disk handy.

You will need the Firmware and Software Tools CD provided with your Evaluation Kit.

Note: In order to be able to install the Fast-VNET card on to your PC running under

Windows 2000, you will need to log on as “Administrator”.

3.3 Installing the

Application and

Drivers Under

Windows

98/Me/2000

Note: Please do not plug your PCMCIA card until the Application setup has been

completed. The setup procedure described below installs the drivers, the

Configuration & Monitor Utility and the Firmware Upgrade Utility.

1. Insert the Firmware and Software Tools CD into your CD-ROM drive and locate

the executable file “setup.exe”.

2. Follow the installation instructions from the InstallShield Wizard by pressing the

“Next” button.

3. During the setup process, the window of Figure 3-1 will appear prompting you to

select the adapter type you are going to install. If you plan to install an ATMEL

PCMCIA (A) card only, then you must choose the “Application & PCMCIA Drivers” option.

However, if you plan to install an ATMEL USB (A) card in the futureI, select the

“Application, PCMCIA & USB Drivers” option.

Figure 3-1. Selection of adapter type

Application & PCMCIA Drivers:

• By selecting this installation option, you will install the Applications (Configuration &

Monitor Utility and Firmware Upagrade Utility) and the latest PCMCIA drivers. If the

PCMCIA drivers have been previously installed and they have not been uninstalled

prior to the new installation the new drivers will ovewrite the old ones without

prompting you.

Application & USB Drivers:

• By selecting this installation option, you will install the Applications (Configuration &

Monitor Utility and Firmware Upagrade Utility) and the latest USB (A) drivers. If the

USB (A) drivers have been previously installed and they have not been uninstalled

prior to the new installation the new drivers will ovewrite the old ones without

prompting you.

Application, PCMCIA & USB Drivers:

• By selecting this installation option, you will install the Applications (Configuration &

Monitor Utility and Firmware Upagrade Utility) and the latest PCMCIA & USB (A)

drivers. If the PCMCIA & USB (A) drivers have been previously installed and they

have not been uninstalled prior to the new installation the new drivers will ovewrite the

old ones without prompting you.

Application Only:

• By selecting this installation option, you will only install the Applications (Configuration

& Monitor Utility and Firmware Upagrade Utility).

4. After you have assigned the Destination Location option where the application

will be installed (by Default this option is set to C:\Program Files\ATMEL\802.11

Wireless LAN), you can then choose the mode of operation:

3a. Ad-Hoc (Figure 3-2, Figure 3-3)

3b. Infrastucture (Figure 3-4, Figure 3-5).

Ad-Hoc Mode

In Ad-Hoc Mode the wireless stations can directly communicate with each other.

Figure 3-2. Operating Mode Dialog

When selecting the Ad-Hoc mode you have to specify the ESSID and the Channel

parameters (Figure 3-3).

• ESSID: Select the ESSID of the Ad-Hoc network. All stations participating in the Ad-

Hoc network should have the same ESSID.

• Channel: Select the channel to be used. There are 14 channels available.

Figure 3-3. ESSID and Channel Dialog

As soon as you have set your selections, press the “Next” button and a window appears

with a review of your installation settings. Please make sure that these values are the

desired ones. In case you have made a mistake you can always select the “Back” button

to make a correction. Press the “Next” button to continue with the installation, and finally

select the “Finish” button for the installation to be completed.

Infrastructure Mode

In Infrastructure Mode the use of an Access Point is necessary in order for the wireless

clients to communicate with each other.

Figure 3-4. Operating Mode Dialog

When selecting the Infrastructure mode you need to specify the ESSID (Figure 3-5).

• ESSID: Select the ESSID of the access point to which the wireless station will be

associated with in infrastructure mode.

Figure 3-5. ESSID Dialog

As soon as you have set your selections, press the “Next” button and a window appears

with a review of your installation settings. Please make sure that these values are the

desired ones. In case you have made a mistake, you can always select the “Back” button

to make a correction. Press the “Next” button to continue with the installation, and finally

press the “Finish” button for the installation to be completed.

Notes: 1. You can now safely plug your PCMCIA card. The “Add New Hardware Wizard”

automatically loads the Drivers for your PCMCIA card. As soon as the

procedure has been completed.

2. In the Windows 2000 installation procedure an extra window appears

prompting you to select whether you would like to install the “Digital Signature

Not Found” or not. You can safely select “YES”.

3.4 Uninstall

Procedure Under

Windows 98/Me

In order to uninstall the Configuration & Monitor Utility from Windows 98/Me, you must

select the “Unistall Configuration & Monitor Utility” option (Start -> Programs -> Atmel

802.11 Wireless LAN -> Unistall Configuration & Monitor Utility). It is recommended to

stop the PCMCIA card and “Exit” the application prior to starting the unistallation procedure.

If during the unistall procedure you receive an error message, please insert the

CD which contains the setup program and try to uninstall the Utility again.

The above procedure uninstalls the Configuration & Monitor Utility, but not the card

itself. In order to uninstall the Fast-VNET card from Windows 98/Me, you must double

click on the “Network” option in the “Control Panel” (Start -> Settings -> Control Panel).

Select the “ATMEL PCMCIA FastVNET (A)” card from the list and press the “Remove” button.

The system will prompt you to re-boot. Press "Yes" to re-boot.

3.5 Uninstall

Procedure Under

Windows 2000

The procedure in order to remove the Monitor & Configuration Utility is the same with the

one described for Windows 98/Me.

In order to uninstall the Fast-VNET card from Windows 2000 you must select it in the

Device Manager of Windows 2000 and press “Uninstall”. The “Uninstall” procedure

can be performed only if the Fast-VNET card is plugged in.

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