Atmel AVR461 User manual

1
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

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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

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"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=[e-mail]
receiver=[e-mail]
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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Figure 10. Listing of Files in the File System
To view the files in the file system, type “ls”or “dir”. To transfer files from a location on
the PC to the Toolkit, type “put name.ext”, where name.ext is the name of the file. To
transfer files from the Toolkit to the PC type “get name.ext”where name.ext is the name
of the file. Files in the file system can not be overwritten, and must therefore be deleted
before re-written. To delete a file, type “rm name.ext”. To change the directory from
which you want to transfer the files from your PC, type “LS directory”where directory is
the target path on your PC. For more information, type “?”.
The file
server.ini contains the configuration settings of the Toolkit, and should not be
deleted from the file system. The file index.htm is the default file that is displayed when
the Toolkit’s IP address is entered in a web browser window.
The dataflash file system can also be accessed from FTP programs with Windows inter-
face. The file system has been tested with CuteFTP®(www.globalscape.com).

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Modifying the
Software
Modifying the source code of the Toolkit software requires programming knowledge in C
language. The software for the Internet Toolkit is divided into modules for the various
functions. For complete descriptions of the functions in the software, please see the
technical documentation included with the Toolkit.
This example explains how to use the IAR compiler for compiling the files to build a hex
file for downloading into the Internet Toolkit.
For new users of the IAR C-compiler, it is recommended to complete the tutorial
included in the C-compiler documentation.
Figure 11. Files Included in the Full Configuration

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Figure 12. Setting Output File Format
Figure 11 shows the files an IAR project including all the files necessary to use all soft-
ware modules. To save code space, unused modules may be removed. The code size
for the modules included in Figure 7 is approximately 30 Kbytes with maximum size
compression. Figure 12 shows the settings for the output file format. Intel-extended
should be selected as file format.
Figure 13 shows the settings for the linker file. A linker command file is included with the
code. This linker command file should be selected.
The project can now be built. The.hex file can be downloaded to the Toolkit as explained
below.
Downloading New
Software
When a.hex file has been generated by the C-compiler, it must be downloaded into the
Toolkit. This downloading can be done with the AT90ISP programing cable or with the
STK500 starter kit. The documentation for these tools explains the required connec-
tions. When connecting the programmer to the 6-pin ISP header on the Toolkit board,
make sure that the cable is connected the right way round.

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Formatting the File
System
To format the file system of the EIT Dataflash, short-circuit pins 1 and 2 of the Expan-
sion Port header on the EIT while resetting it.
Figure 13. Specifying Linker File

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Trouble-shooting
guide
To be used with the Embedded Internet Quick Start Guide, which describes how to con-
nect the Embedded Internet Toolkit, plus the use of FTP and web browsers.
Table 1. Troubleshooting Guide
No Checkpoint Y/N Solution
1
Is the LAN LED on
and is the LINK LED
flashing with short
pulses?
NO
No network connection is detected. The Ethernet cable is
either not plugged in or wrong type of cable is used. For
connection to a network with a hub or switch, a normal
network cable can be used. For direct connection to a PC
network card, a twisted cable must be used.
YES A network connection is detected, the Toolkit is
connected to the network
2
Does the Toolkit
respond to PING
requests?
NO
Either the Toolkit or the PC is set up with wrong IP
address.
To change the IP address of the Toolkit, use the terminal
program included on the Toolkit CD. Note that the file
must be saved as "server.ini" before pressing the "write"
button in the terminal program. A network connection
(checkpoint 1) must be established before the terminal
program can communicate with the Toolkit.
To change the IP address of a PC, use the Windows
"control panel ->network ->TCP/IP properties" and set up
an IP address close to the Toolkit IP address. I.e. as the
Toolkit is shipped with a default IP address of
169.254.111.111, the PC can be set up with IP address
169.254.111.150
YES
The PC and the Toolkit are set up with a correct IP
address and they are able to communicate with each
other
3
Can the Toolkit
communicate with a
DOS FTP program?
NO The default user name and password is "ews". Check that
the user name and password are written in lowercase
YES The user has access to the flash file system
4
Can the default web
pages be accessed
in a web browser?
NO
This is normally caused by the setup of the web browser.
In the "options" or "preferences" menu, check that the
web browser is configured for direct network connection
or local area network and NOT using a proxy server.
YES No problems

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© Atmel Corporation 2002.
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2499B–AVR–05/02 0M
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