Atmel AVR461 Bedienungsanleitung

AVR461: Quick Start Guide for the Embedded

Internet Toolkit

Introduction

Congratulations with your AVR Embedded Internet Toolkit. This Quick-start Guide

gives an introduction to using the AVR Embedded Internet Toolkit and can be used as

a guide for getting started with embedded Internet applications

System Requirements

The minimum hardware and software requirements are:

• PC with 486 Processor (Pentium®is recommended).

•16MBRAM.

• 3 MB Free Hard Disk Space.

• Windows®95/98/2000 or Windows NT®4.0 or Higher.

• RS-232 Port (COM Port).

• Ethernet Network Connection or Ethernet Network Card with 10BaseT Interface

(Twisted Pair, RJ45 Connector), web browser Installed, Internet Explorer or

Netscape.

To modify the source code of the Toolkit, the following items are required:

• IAR C-compiler or Imagecraft™C-compiler.

• STK500 Starter Kit or Other Programming Equipment Capable of In-System

Programming megaAVR™.

8-bit

Microcontroller

Application

Note

Rev. 2499B–AVR–05/02

2AVR461

2499B–AVR–05/02

Figure 1. The Embedded Internet Toolkit Board

Connections to the

Toolkit

To use the Toolkit, an Ethernet connection is required, either through a network or

directlytoaPC.

The Ethernet interface connector is of standard RJ-45 type. Plug the Ethernet cable

directly into the Toolkit to connect to the Ethernet network or PC.

SettingUpand

Testing the Ethernet

Connection

The descriptions below explain how to connect the Toolkit to an existing Ethernet net-

work or directly to a PC if a network is not available, then how to test either connection.

The PC is Not Connected

to Network

If the PC is equipped with an Ethernet network card but not connected to a network (see

Figure 2), a local network address should be used for communication between the

Embedded Internet Toolkit and the PC. The Embedded Internet Toolkit is shipped with

the default IP address 169.254.111.111. This address is in the address area reserved

for local networks not connected to the Internet. For direct connection between the PC

and the Toolkit, a crossover Ethernet cable is required. The yellow Ethernet cable pro-

vided with the Toolkit is a crossover cable.

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Figure 2. The PC is Connected Directly to the EIT

To set up your PC to connect directly to the Embedded Internet Toolkit, an IP address in

the same range as the Toolkit’s must be assigned to the PC. In Windows®environ-

ments, this should be done as follows (some Windows®versions might deviate slightly

in appearance):

• Connect the PC and the Toolkit with the yellow (crossover) Ethernet cable.

• Open the Windows®Control Panel.

• Select Network.

• Select TCP/IP -> the PC’s Ethernet adapter from the Configuration tab as shown in

Figure 3.

Figure 3. TCP/IP Configuration

• Push the Properties button. A TCP/IP Properties box similar to Figure 4 should

appear.

Yellow Cable

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Figure 4. TCP/IP Properties

•Select the IP Address tab.

•Choose to Specify an IP address as shown in Figure 4.

•Insert the IP address 169.254.111.150 and the corresponding subnet mask as

showninFigure4.

•Save your settings by pressing OK in both TCP/IP properties and Network

properties.

•Reboot your PC.

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The PC is Connected In

Network

If there is an Ethernet network available (see Figure 5), the Embedded Internet Toolkit

can be connected to any Ethernet connection or hub belonging to the network. If the PC

is connected to a network, there is a strong possibility that the default IP address of the

Toolkit is outside the range of the network (the address doesn’t belong to the IP subset

of the network). If the Ethernet network is connected to the Internet, this is certain. In

this case, a new IP address for the Toolkit is required. Contact the local network admin-

istrator to be assigned a free IP address for the Toolkit, then See “UsingtheWebServer

Terminal Software”on page 7. for a description on how to configure the Toolkit’sIP

address.

In the remainder of this document, the IP address 169.254.111.111 is used as an exam-

ple. Exchange this IP address with the IP address you have set up in all the

occurrences.

Figure 5. The PC is Connected to the EIT through a Network

Testing the Connection To test the connection between the PC and the Internet Toolkit a simple program called

ping

can be used.

Ping

sends a number of messages to the specified IP address and

displays the response. The ping program can be run from the command line or from a

DOS window on the PC, as follows:

•Open the Windows®Start Menu.

•Click Run.

•In the Open box, type: “ping 169.254.111.111”.

If the network connection is OK, the program will respond with:

"Reply from 169.254.111.111" and information about the response time.

If there is a problem with the network setup the program will respond:

"Destination host unreachable". There may be two solutions for this problem:

•If the PC is connected to a network, change the IP address to an address

accessible from the local network, as described in “The PC is Connected In

Network”on page 5.

•If the Toolkit is connected directly to the PC (or through a hub), change the PC’sIP

address to one in the same address range as the Toolkit, as described in “The PC is

Not Connected to Network”on page 2.

If there is a problem with the Embedded Internet Toolkit the program will respond:

Lan/

Internet

Grey Cable

6AVR461

2499B–AVR–05/02

"Request timed out", this means that the Toolkit can not respond to messages. Check

power connection, or perform a reset of the board by pressing the “RESET”button.

When the

ping

program is running it is using a DOS window on the PC. If the window is

closing too fast to see the message, open a DOS window and type “ping

169.254.111.111”. The text will not disappear in this window.

Viewing Web Pages The Embedded Internet Toolkit is shipped with example web pages programmed into

the Flash memory. To view these web pages, a web browser such as Internet Explorer

or Netscape is needed.

When using the Embedded Internet Toolkit there is no DNS (Domain Name Server) to

recognize the IP address and assign a symbolic name for it (for instance

www.atmel.com). To use symbolic names for the Embedded Internet Toolkit, contact the

local network administrator and ask for a symbolic name for a specified IP address.

To view the default resident web pages in the Toolkit, start the web browser and write

“169.254.111.111”into the address line of the browser window. The main page of the

Embedded Internet Toolkit will now be displayed in the browser window.

Figure 6. Viewing the Default Web Page in a Web Browser

If no web page is displayed, go back to “Setting Up and Testing the Ethernet Connec-

tion”on page 2 and test if the network connection to the Toolkit is established. If the

Toolkit replies to the ping messages, check the setup of the web browser. If the Internet

Toolkit is directly connected to the same network as the PC, “direct connection to the

network”or “bypass proxy server for local addresses”should be selected in the web

browser configuration menu. If the Internet Toolkit is connected to the PC through a fire-

wall, a proxy server should be selected in the configuration menu. Contact the local

network administrator for information about the network configuration.

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Installing the Web

Server Terminal

Software

The Embedded Internet Toolkit includes software for configuring the Toolkit. For a com-

plete description of the configuration settings, please see the AVR Web Server

documentation.

The web server terminal software is included on the CD-ROM provided with the Toolkit.

To install the web server terminal software on the PC, click on the “PC software”link on

the CD-ROM main page. This will copy all required files to the hard disk and add the

web server icon to the start menu on the PC. The PC may need to be restarted after the

installation.

UsingtheWebServer

Terminal Software

To start the web server terminal software, open the start menu, select Programs and

AVR Web Server Terminal to start the software. To load the default setting, open the

File menu and select Load. Figure 7 shows the settings in the web server terminal

software.

Note: The Toolkit’s network connection must be running correctly and the LINKLED on the

board must be on in order to successfully connect to the web terminal software. If the

network connector is not plugged in, the Embedded Internet Toolkit will not be initialized

Figure 7. Web Server Terminal Window

The various settings are explained below.

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Web Server Setup

DHCP Enable If DHCP (Dynamic Host Configuration Protocol) is enabled, the web server will automat-

ically initialize the IP address from a DHCP host. Use of DHCP requires a DHCP host to

be set up on the network. “DHCP enable”disables manual IP address setup.

IP Address Sets up the IP (Internet Protocol) address of the web server. Make sure the IP address

is available on the local network. For complete description of IP addresses, see the AVR

Web Server documentation

MAC Address Configures the MAC (Media Access Control) address of the web server. The MAC

address must be a 48-bit hex value. For complete description of MAC address, see the

AVR Web Server documentation

E-mail Setup The AVR Embedded Web Server can be configured to send e-mails to an e-mail

address specified in the web server terminal. The sender and receiver address can be

written directly into the e-mail setup section. The Host name is used to identify the web

server to the mail server. The e-mail server IP address specifies the address of the e-

mail server.

FTP Setup The FTP setup section specifies the user name and password to log on to the AVR

Embedded Web Server using FTP (File Transfer Protocol).

Write The software writes the configuration settings to a local file called “server.ini”. When the

write button is pressed the local file is transferred via the RS-232 serial interface to the

Internet Toolkit. Make sure that an RS-232 cable is connected between the PC and the

Internet Toolkit and that the Toolkit’s network connection is running correctly before

pressing the write button.

The file is transferred to the Internet Toolkit using the ymodem protocol. The default set-

tings are 9600 baud, no parity, 8 data bits, and 1 stop bit (9600, n, 8, 1). In the setting

menu, the UART settings can be changed from their default values in the Settings

menu.

The new settings become operative the next time the EIT is reset or powered up.

Figure 8. Writing Configuration to the Toolkit

Ping The web server terminal software includes a ping for testing the communication to the

Internet Toolkit. When clicking the Ping choice in the Tools menu, the program will ping

the address currently in the IP Address field, and display the result in a DOS window.

For an explanation of the ping responses, please see “Setting Up and Testing the Ether-

net Connection”on page 2.

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Web Browser If Internet Explorer is installed on the PC, the web server terminal can be used as a web

browser. Simply click the View menu and then web browser to display the web contents

of the address specified in the IP Address field.

Server.ini The web server terminal program generates a configuration file called server.ini with the

following format:

[System]

DHCP=0

IP0=A9FE

IP1=6F6F

MAC0=0004

MAC1=25FF

MAC2=0010

[SMTP]

sender=anybody@anywhere.com

receiver=anybody@anywhere.com

host=anyhost

maillp0=A9FE

maillp1=6F60

[FTP]

FTP=1

Username=ews

Password=ews

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Uploading Web

Pages to the Toolkit

The Embedded Internet Toolkit includes 256 Kbytes of Flash memory that can be

accessed remotely from the network with FTP (File Transfer Protocol) or via RS-232

and ymodem protocol from a terminal program (For instance Hyperterm). The files can

be of any type, web pages, pictures, applications or JAVA applets being the most com-

mon ones.

The simplest way of using FTP is from a DOS window. To open a DOS window in

Windows®95 and Windows®98, click the start menu, program and MS-DOS Prompt.

Alternatively, click the start menu, click run and type command. In the DOS window type

ftp 169.254.111.111 (or any other address set up with the web server terminal program).

Figure 9 below shows a screen shot of the logon screen.

Figure 9. Using FTP from a DOS Window

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