Wiznet W5100E01-AVR User Manual

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Page 2: Document History Information
Document History Information Revision Data Description Ver. 1.0 Febrary 1, 2007 Original Document W5100E01-AVR User’s Manual...
Page 3 WIZnet’s Online Technical Support If you have something to ask about WIZnet Products, Write down your question on Q&A Board in WIZnet website (www.wiznet.co.kr). WIZnet Engineer will give an answer as soon as possible. W5100E01-AVR User’s Manual...
Page 4: Copyright Notice
COPYRIGHT NOTICE Copyright 2007 WIZnet, Inc. All Rights Reserved. Technical Support: support@wiznet.co.kr Sales & Distribution: sales@wiznet.co.kr General Information: info@wiznet.co.kr For more information, visit our website at http://www.wiznet.co.kr W5100E01-AVR User’s Manual...
Page 5: Table Of Contents
How to download ................29 3.2.3. EVB B/D’s main() ................29 3.2.4. Manage Program ................33 3.2.5. Applications ................. 49 3.2.6. Hardware Designer’s Guide ....................92 4.1. Block Diagram ...................... 92 4.2. Block Description ....................93 PM-A1 ..................93 4.2.1. W5100E01-AVR User’s Manual...
Page 6 External SRAM Area ..............103 4.4.2. LCD Area .................. 103 4.4.3. W5100 Area................104 4.4.4. 4.5. Parts List ......................106 W5100E01-AVR Parts List ............106 4.5.1. PM-A1 Parts List ................. 106 4.5.2. 4.6. Physical Specification ..................107 Power Consumption ..............107 4.6.1.
Page 7 VS P > ................... 42 ESSAGE ESSAGE <F 3.11: ()> ............................. 45 PING <F 3.12: D ()> ....................46 ISPLAY TATISTICS <F 3.13: S ()> ........................ 47 EPLY < F 3.14 : () > ......................49 LOOPBACK TCPS W5100E01-AVR User’s Manual...
Page 8 <F 3.44: ()> ........................88 PARSE NAME <F 3.45: DNS M > ................89 ESSAGE OMPRESSION CHEME <F 4.1: EVB B/D B > ..................... 92 LOCK IAGRAM <F 4.2: PM-A1 MODULE D > ....................93 IMENSION viii W5100E01-AVR User’s Manual...
Page 9 UNCTIONS IN PING REQUEST <T 3-23: R ()> .............. 50 ABLE EFERENCE UNCTIONS IN LOOPBACK TCPS <T 3-24: R ()> .............. 52 ABLE EFERENCE UNCTIONS IN LOOPBACK TCPC <T 3-25: R ()> ..............54 ABLE EFERENCE UNCTIONS IN LOOPBACK W5100E01-AVR User’s Manual...
Page 10 > ......................96 ABLE ESCRIPTION <T 4-3: LCD PIN D > ...................... 97 ABLE ESCRIPTION <T 4-4: E > ............. 98 ABLE XPANDED OARD NTERFACE ESCRIPTION < T 4-5 EVB B/D P > ..................107 ABLE OWER ONSUMPTION W5100E01-AVR User’s Manual...
Page 11: Overview
1. Overview W5100E01-AVR is W5100 Evaluation B/D for AVR developers. 1.1. Package When purchasing W5100E01-AVR B/D, please make sure you have all the following contents. <Table 1-1: List of Items Contained in the EVB B/D> Item Quantity W5100E01-AVR Main Board...
Page 12: Feature
1.2. Feature 1.2.1. H/W Features W5100E01-AVR B/D is composed of 2 type B/Ds PM-A1 MCU : ATmega128, 8MHz RAM : 32KB SRAM (External) ROM : 128KB Flash (Atmega128 Internal Flash) ICE I/F : JTAG, ISP Support W5100E01-AVR Power : DC5V, 2A Adaptor...
Page 13: Getting Started
For interfacing W5100 with MCU through SPI mode, the pin of 2 and 3 of JP3 should go short. In case that SPI mode is not used, the pin of 1 and 2 should be shorted. <Fig 2.2 : JP3 Jumper Setting > © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 14: Pc Programs Install
W5100 and does the Loopback the file and packet data in connection with EVB B/D channel applications such as Loopback TCP Server/Client and Loopback UDP. Please refer to “AX1 Manual Vx.x.pdf” for installation and usage. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 15: Quick Start
Check if Text LCD display of EVB B/D outputs in the way shown in <Fig 2.3> and shown in <Fig 2.4> on the Terminal Program <Fig 2.3 : EVB B/D Text LCD Display > © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 16: Evb B/D Test
⑨ Test the loopback with any file or packet between “AX1” Program and EVB B/D. 2.4. EVB B/D Test The firmware of EVB B/D can be divided into Manage Program and EVB B/D Test Application. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 17: Manage Program
255.255.255.0 DNS Server IP Address 0.0.0.0 If “Network Config” menu is selected on Manage Program, menu shown in <Fig 2.7> can be displayed and each function is described in <Table 2-3>. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 18: Table 2-3 : Menu Of Network
Initialization of the system with the default value. Refer to <Table 2-2> ‘M’ or ‘m’ Sets up MAC Address. <Warning> This value is not changed when Factory Reset. E : Exit Exit “Net Config” © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 19: Fig 2.8 : Source Ip Address Setup Example
Loopback TCP Server (Port 5000) Loopback TCP Server (Port 5000) If “Channel Config” menu is selected in manage program, <Fig 2.10> is displayed and the functionality of each menu is described in <Table 2-5>. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 20: Fig 2.10 : Menu Of Channel Config
<Warning> EVB B/D : TCP Server, AX1 : TCP Client TCP Loopback Client TCP Client Test Program <Warning> EVB B/D : TCP Client, AX1 : TCP Server Loopback UDP UDP Test Program Web Server Web Server Test Program © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 21: Fig 2.11 : Loopback Tcp Client Application Setting Example
Listen Port Number : 5000 TCP Loopback Client Server IP Address : 192.168.0.3 Server Port Number : 3000 Loopback UDP Source Port Number : 3000 Web Server HTTP Port Number : 80 © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 22: Fig 2.12 : Usage Of Ping Application
DOS prompt. It’s executed when ‘3’ is chosen <Fig 2.6 : Manage Program Execution>. <Fig 2.12 : Usage of Ping Application > <Fig 2.12> displays the execution screen of Ping Application and shows how to use the Ping Application. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 23: Evb B/D Test Applications
<Fig 2.14> is the screen that DHCP Client successfully obtains network information. Note that DHCP Client will be set with default network information if DHCP Server does not exist or is not able to obtain network information from DHCP Server. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 24: Fig 2.14 : Dhcp Client Test
After the setup of EVB B/D is complete, run “AX1” at Test PC then try the connection to the IP Address. When the connection between EVB B/D and “AX1” is successful, loop back the data. Refer to “AX1 Manual Vx.x.pdf” © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 25: Fig 2.15 : Loopback Tcp Server Test
After EVB B/D setup is over, loop back desired data with IP Address and UDP Source Port of EVB B/D using menu or Icon related to UDP. Refer to “AX1 Manual Vx.x.pdf”. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 26: Fig 2.17 : Loopback Udp Test
If the web browser is successfully connected to HTTP port of EVB B/D, the Web Page of <Fig 2.19> can be viewed. In case Web Page of <Fig 2.19> is not shown, refresh the screen using the “Refresh” function of the web browser. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 27: Fig 2.19 : Default Web Page Of Evb B/D
If [Control] button on the Web Page in <Fig 2.19> is clicked, it can set the network information or show the web page that can turn on or off LEDs(D3,D4) and display rows of text on Text LCD display. <Fig 2.20 : Web Page of EVB B/D Control> © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 28: Troubleshooting Guide
Step 1. Check the connection condition of the serial cable. Step 2. Check the COM Port numbers of the PC and terminal coincide. Step 3. Check the terminal’s baud rate 57600. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 29: Programmer's Guide
16KB 0xC000 Not Used 0x9400 0x9000 Not Used 0x8400 Control Regs. AVR Internal Flash 0x8000 128KB External 0x1100 AVR Internal AVR Internal 0x0100 0x00000 0x0000 <Fig 3.1: EVB B/D Memory Map> © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 30: Avr Internal Eeprom Map
#define LCD_BASEADDR 0x9000 evb/lcd.h 3.1.2. AVR Internal EEPROM MAP <Fig 3.2>, <Table 3.2> are representations of AVR Internal EEPROM Map. Refer to “evb/config.h” and “evb/config.c.” <Fig 3.2: AVR Internal EEPROM Map> © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 31: Table 3-2: Avr Internal
(CH_PORT_1 + 2) #define CH_TYPE_2 (CH_DESTIP_1 + 4) #define CH_PORT_2 (CH_TYPE_2 + 1) #define CH_DESTIP_2 (CH_PORT_2 + 2) #define CH_TYPE_3 (CH_DESTIP_2 + 4) #define CH_PORT_3 (CH_TYPE_3 + 1) #define CH_DESTIP_3 (CH_PORT_3 + 2) © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 32: Table 3-3: System Information
}SYSINFO; <Table 3-5: System Information Access Functions> Function Description void set_sysinfo(SYSINFO* pSysInfo) Save the System Information void get_sysinfo(SYSINFO* pSysInfo) Get the System Information © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 33: Table 3-6: Network Information
}NETCONF; <Table 3-8: Network Information Access Functions> Function Description void set_netconf(NETCONF* pNetConf) Save the Network Information void get_netconf(NETCONF* pNetConf) Get the Network Information © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 34: Table 3-9: Channel Information
Channel application type includes Loopback TCP Server, Loopback TCP Client, Loopback UDP, DHCP Client, Web Server. Channel Information is defined as APPTYPE enumeration type. <Table 3-10: Channel Application Type> typedef enum _APPTYPE NOTUSE, DHCP_CLIENT, LB_TCPS, LB_TCPC, LB_UDP, WEB_SERVER }APPTYPE; © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 35: Table 3-11: Chconf Data
_CH_CONF u_char type; u_int port; u_long destip; }ch[4]; }CHCONF; <Table 3-12: Channel Information Access Function> Function Description void set_chconf(CHCONF* pChConf) Save the channel information void get_chconf(CHCONF* pChConf) Get the channel information © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 36: Evb B/D Firmware
Internet Application using Internet Protocols such as DHCP, HTTP, DNS, and ICMP. Let’s look at the source list of which EVB B/D is composed and then look at each application source. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 37: Sources
Utilities relating Socket util.h, util.c Utilities iinChip iinchip_conf.h System Dependant Defintion of W5100 W5100.h, w5100.c I/O Functions of W5100 socket.h, socket.c Socket APIs for W5100 © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 38: How To Compile
Be sure to check compile setting detail at the Configuration option of Project menu of AVRSTUDIO. For the setting method, refer to AVR Studio User Guide. As the firmware provided by WIZnet is based on AVR-GCC 3.4.6, it can not be operated correctly at another version of the comiler.
Page 39: How To Download
__DEF_IINCHIP_BUS__ instead of __DEF_IINCHIP_DIRECT_MODE__. If DEFINE OPTION of W5100 is changed, the sources must Re-Build. To Re-Build project, do “make clean”, then “make”. In case of SPI mode, be sure to change the configuration of JP3 in the W5100E01-AVR board. For more detail, refer to Chapter 2.1.1 EVB B/D Layout &...
Page 40 DHCP server, the EVB B/D is initialized with previously-set network information. After the initialization, it runs test applications of EVB B/D by calling each registered application handler. For further details on DHCP client program, refer to “Chapter 3.2.6.5 DHCP Client.” © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 41: Fig 3.4: Check
DHCP server void loopback_tcps(u_char ch) Loopback - TCP Server app/loopback.c void loopback_tcpc(u_char ch) Loopback - TCP Client app/loopback.c void loopback_udp(u_char ch) Loopback - UDP app/loopback.c void web_server(u_char ch) Web Server Program app/webserver.c © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 43: Manage Program
And if the command is detected, Manage Program will be entered through manage_config(). If the user change the configuration, the EVB B/D automatically reboots and check_manage() is skipped. <Fig 3.4: check_manage()> © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 45: Fig 2.7 : Network Config
Source IP, Gateway IP, or Subnet Mask but it provides hidden menu. Also, MAC Address is not changed at the time of Factory Reset. MAC Address is updated using ‘M’ or ‘m’. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 47: Table 3-17: Referencef
Here, the number of clients is as many as the same port number. Other applications can be set repeatedly by channels, but the same port number cannot be used. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 48: Fig 3.7: Manage_Channel()
LB_TCPC LB_UDP O, supports all the simultaneously WEB_SERVER connected clients as many as the number of repeated ports <Fig 3.7: manage_channel()> © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 49: Table 3-19: Referencef
<Fig 3.9> calls ping() based on relevant option and option after checking the validity of command, option, and option value with bits of argument flag. ping() sends Ping request message to a certain destination and processes the ICMP message which is received from any destination. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 52: Fig 3.10: Icmp Message Vs Ping Message
Ping Replies are analyzed and processed to fit the elements. <Fig 3.11> is the process of ping() and Ping message is defined and used as the data type of <Table 3-21>. Refer to “inet/ping.h” © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 53: Table 3-20: Pingmsg Data
Unreachable MSG field and TimeExceedMSG field are incremented by 1 in case of receiving Unreachable Message or Time Exceeded Message from peer or gateway. UnknownMSG field is incremented by 1 when the unknown message is received. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 54 PingReply field is incremented by 1 whenever Ping reply for Ping request from the peer is received. Loss field is incremented by 1 whenever Wait Timeout is occurred because nothing is replied to the peer in certain period of time after sending Ping request. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 56: Fig 3.12: Displaypingstatistics()
In case of closing ICMP Socket, setIPProtocol(s, 0x00) should be called after close(s) and clear the ICMP Flag which was previously set. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 58: Table 3-22: Referencef
Receives Datagram packet from any iinChip/socket.c u_char * buf, u_int len, destination u_char * addr, u_int * port) SOCKET getSocket(unsigned Searches for socket has the designated util/sockutil.c char status, SOCKET start) status © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 59: Applications
= getSn_RX_RSR() recv(ch,data_buf,len) Close Socket Send the Received Data SOCK_CLOSE_WAIT? close(ch) send(ch,data_buf,len) Create a TCP Socket SOCK_CLOSED? socket(ch,SOCK_STREAM,port,flag) Wait a connetion with a client NBlisten(ch) RETURN < Fig 3.14 : loopback_tcps() > © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 60: Table 3-23: Referencef
In SOCK_CLOSE_WAIT status, disconnect() is called to close socket. disconnect() changes the socket status to SOCK_CLOSED regardless of previous socket status. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 61 If the connection is successful the socket status is changed from SOCK_SYNSENT to SOCK_ESTABLISHED. In SOCK_ESTABLISHED status, the operation is same as explained in loopback_tcps(). © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 62: Fig 3.15: Loopback
Receives the data to related socket that iinChip/socket.c u_char * buf, u_int len) is in connection void disconnect(SOCKET s); Close the related socket iinChip/socket.c u_int get_system_any_port(void) Get any port number. evb/config.c © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 63: Fig 3.16: Loopback
Select Recieved Size Receive the Data SOCK_INIT? len > 0 len = getSn_RX_RSR() recvfrom(ch,data_buf,len,&destip,&destport) Send the Received Data SOCK_UDP? sendto(ch,data_buf,len,destip,destport) SOCK_CLOSED Create a TCP Socket socket(ch,SOCK_DGRAM,port,flag) RETURN <Fig 3.16: loopback_udp()> © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 64: Table 3-25: Referencef
Web Server program is a TCP server program using HTTP protocol which is used on TCP protocol. Before building Web server program, message structure of HTTP protocol that is transmitted between Web server and Web client(Web browser) are needed to be understood. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 65: Fig 3.17: Http Message Flow
CGI(Common Gateway Interface), it takes the action and the result is informed in web page. <Fig 3.17> shows HTTP message flow between web server and web client. <Table 3-28> shows structure of HTTP message. <Fig 3.17: HTTP Message Flow> © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 66: Table 3-27: Http Message Format
For further information on HTTP message, refer to RFC2616. HTTP request message varies according to web browser type. <Table 3-29> shows the examples of HTTP message communication between Internet Explores on Windows 2000 and EVB B/D. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 67: Table 3-28: Http Message Between Evb B/D And Web Browser
HTTP/1.1 200 OKCRCF Content-Type: gif/imageCRCF Content-Length: 613CRCFCRCF [GIF IMAGE] Web Server program is composed of web_server() to manage HTTP server socket and proc_http() to manage HTTP message. <Fig 3.18> is processing procedure. © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 68: Fig 3.18: Web
This socket close is called Active Close and, in the case, EVB B/D requests the close to the client first. For your reference, Passive Close is where client requests disconnection first. The reason why web server program supports Active Close is that EVB B/D supports the connection with other clients. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 70: Table 3-29: System Environment Variables Usage At For example, if Source IP Address of EVB is expressed in string, the maximum is 16. Hence, the length of $SRC_IP_ADDRESS$ is 16 as well. ‘ROM File System’ of EVB B/D can be created with © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 71: Fig 3.20: Parse_Http_Request()
“ROMFileMaker.exe” provided by WIZnet. Refer to “ROM File Maker Manual Vx.x.pdf” for further information. HTTP Request message can be divided into Method and Request-URI by parse_http_request() and stored in ‘st_http_request’ Date Type which is defined in <Table 3-31>. It gets the requested URI Type with get_http_uri_type().

Page 72: Fig 3.21: Find _ Http _ Uri
Query String. <Fig 3.22: get_http_uri_name() & get_http_parse_value()> CGI processing of Web Server Program at EVB B/D is different from general Web Server Program which is © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 73: Fig 3.23: Netconf.cgi Processing
CGI processing. EVB B/D supports “NETCONF.CGI” which updates Network Information and “LCDNLED.CGI” which controls text LCD, D1/D2 LED of EVB B/D. <Fig 3.23> and <Fig 3.24> shows both CGI processing. <Fig 3.23: NETCONF.CGI Processing> © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 74: Fig 3.24: Lcdnled.cgi Processing
<FORM>of LCDNLED.CGI is submitted in “GET” Method and <FORM> submitted as “GET” Method is submitted in Query String of Request-URI. Parameters submitted by Query String of Request-URI can also extract parameter value using get_http_param_value(). © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 75: Table 3-31: Reference Functions In Web
Closes the connection of the socket iinChip/socket.c void replacetochar(char * str, Changes the special characters in text util/util.c char oldchar, char newchar) rows into new characters. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 76: Fig 3.25: Dhcp Message Flow
Message between DHCP server and client has the format as in <Fig 3.26> with the size of 544 Bytes. Refer to document ‘RFC1541’ for detailed explanation for each field of DHCP message Format. op Field of the first © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 77: Fig 3.26: Dhcp Message Format
Magic Cookie Field, a Lease Identification Cookie with the size of 4 Byte and Code Set ranged from Code 0 to Code 255. From Code1 to Code 254, codes are composed of pairs of {Code, Len, Value}, and © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 78: Option Field Format
<Table 3-34> is defined as enumeration data type in “inet/dhcp.h” and shows most common Option Codes that are used in DHCP Client Program. Other codes that are not defined in <Table 3-34> are skipped from DHCP Client Program. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 79: Fig 3.28: Init _ Dhcp
DHCP Client Program respectively. <Fig 3.28: init_dhcp_client()> When network information is renewed or IP collision occurs, register evb_soft_reset() to run auto reset for EVB B/D. Second, Network Information acquirement can be done through getIP_DHCPS(). © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 80: Fig 3.29: Getip_Dhcps()
STATE_DHCP_LEASED state represents the network information and means that getIP_DHCP() is done successfully. If network information is not obtained from DHCP Server during the waiting time for ‘DHCP_WAIT_TIME & MAX_DHCP_RETRY’, check_DHCP_state() sets DHCP_Timeout to 1. When © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 81: Table 3-34: Dhcp Client State & Timeout Definition
= htons(DHCP_FLAGSBROADCAST); Third, management of network information obtained from DHCP server can be performed by check_DHCP_state(). <Fig 3.30> shows DHCP message flow due to DHCP client state change in the check_DHCP_state() process. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 82: Fig 3.30: Dhcp Message Flow By Dhcp Client State
Accoridng to the types of analyzed DHCP message, if it’s DHCP message that can be receivable, it changes to next state after it changes DHCP Client State as shown DHCP Message Flow of <Fig 3.30>. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 83: Fig 3.31: Check _Dhcp_ State ()
<Fig 3.31: check_DHCP_state()> check_DHCP_state() processes correspondingly with DHCP client state through the series of processes shown in <Fig 3.31>. If we take a look at DHCP_STATE_LEASED state at check_DHCP_state(), the Lease © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 84: Fig 3.32: Parse_Dhcpmsg() & Check_Dhcp_Timeout()
DHCP_REQEUST Message to DHCP Server and changes it as DHCP_STATE_REREQUEST after it backs up the source IP. As it continuously transmits DHCP_REQUEST to the server, network information is maintained. <Fig 3.32: parse_DHCPMSG() & check_DHCP_Timeout()> © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 85: Table 3-36: Reference Functions In Dhcp Client
Transmits DHCP_REQUEST inet/dhcp.c (SOCKET s) message to DHCP server. void Transmits inet/dhcp.c send_DHCP_RELEASE_DECLINE DHCP_DISCOVER/DHCP_DECLIN (SOCKET s,char msgtype) E message to DHCP server u_int init_dhcpc_ch(SOCKET s) Creates DHCP client socket. inet/dhcp.c © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 86: Fig 3.33: Domain Name System Structure & Dns Message Flow
<Fig 3.33: Domain Name System Structure & DNS Message Flow> As seen in <Fig 3.33>, DNS Query and DNS Answer Message transmittable between DNS Resolver and Name Server are composed of 5 Sections in <Fig 3.34>. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 87: Fig 3.34: Dns Message Format
Additional Section other than Header and Question Section are called Resource Records(RRs). Each of Header, Question, and RRs has different format. <Fig 3.35: Header Section Format> <Fig 3.36: Question Section Format> © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 88: Fig 3.37: Recode Resources Format
RDDATA, variable length field, processes using the data length of RDLENGTH Field. For further details, refer to RFC1034 and RFC1035 DNS Message is operated by Data Type defined in <Table 3-38>. Refer to “inet/dns.h” © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 89: Table 3-37: Dns Message Data Type
Actual connection with DNS Name Server is performed through dns_query(), and gethostbyaddr() and gethostbyname() are reporting only the result of dns_query(). <Table 3-38: Query Type Definition at dns_query()> typedef enum _QUERYDATA{BYNAME,BYIP}QUERYDATA; /* Query type / © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 90: Fig 3.38: Gethostbyaddr() & Gethostbyname()
If DNS response message is received from DNS name server during the waiting time, it analyzes received DNS response message using dns_parse_response(). dns_query() returns IP Address or Domain Name depending on Query Type. <Fig 3.39> is dns_query()’s process map © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 91: Fig 3.39: Dns
<Fig 3.39: dns_query()> © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 92: Fig 3.40: Dns_Makequery()
<Fig 3.40: dns_makequery()> © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 93: Fig 3.41: Example Of Qname Field Transformation Of Question Section
0 to find out the variable length of QNAME. <Fig 3.41> is actual example of transformation of Domain Name “www.wiznet.co.kr” in QNAME field. <Fig 3.41: Example of QNAME Field transformation of Question Section > © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 94: Table 3-40 : Constants Definition At Qtype & Qclass Field
A request for mail agent RRs #define QTYPE_TYPE_ALL A request for all records #define CLASS_IN Internet #define CLASS_CS CSNET class #define CLASS_CH CHAOS class #define CLASS_HS Hesiod [Dyer 87] #define QCLASS_ANY Any class © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 95: Fig 3.42: Dns_Parse_Response()
<Fig 3.42: dns_parse_response()> © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 96: Rcode Field
Additional Section, you can get them easily on your own. Question Section is processed as many as QDCOUNT of Header Section by calling dns_parse_question(). Answer Section is processed as many as ANCOUNT of Header Section by calling dns_parse_question(). © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 97: Fig 3.43: Dns _ Parse _ Question () & Dns
Question Section of DNS Request Message, but it must be processed to get the starting position of Answer Section. Since QNAME Field of Question Section gets variable length, parse_name() processes © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 98: Fig 3.44: Parse
IP Address, it can get the changed IP Address from TYPE_A and if the IP Address is changed to Domain Name, Domain Name can be obtained from TYPE_PTR. Changed Domain Name or IP Address are also processed and extracted by parse_name(). <Fig 3.44: parse_name()> © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 99: Fig 3.45: Dns Message Compression Scheme
<Fig 3.45: DNS Message Compression Scheme> The example of Compression Scheme of <Fig 3.45> shows DNS Message in case of “F.ISI.ARPA”, “FOO.F.ISI.ARPA”, “ARPA”, and ROOT. “F.ISI.ARPA” is processed in the format of <Fig 3.41: Example of © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 100 Label analyzes the Label at the offset of DNS Message where the Label is located. If it’s no ‘11’ then the Label is analyzed and processed like as <Fig 3.41: Example of QNAME Field transformation of Question Section >. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 101: Table 3-42 : Reference Functions In Dns Client
Receives data through any port of any iinChip/socket.c u_char buf, u_int len, u_char * destination. addr, u_int * port) void close(SOCKET s) Closes the related Socket iinChip/socket.c © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 102: Hardware Designer's Guide
4. Hardware Designer’s Guide 4.1. Block Diagram <Fig 4.1: EVB B/D Block Diagram> © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 103: Block Description
4.2. Block Description EVB B/D is composed of W5100E01-AVR(EVB Base Board) and PM-A1(AVR MODULE). Following 9 blocks are components of EVB B/D. PM-A1 SRAM RS232 Port Expanded Board Interface Power Regulator 3.3V Power On System Reset 4.2.1. PM-A1 PM-A1(AVR MODULE) is composed of Atmega128 Processor, 74HC573 for address latch, 8MHz external crystal and header for interfacing to Base board(JP4,JP5), and ISP(JP3) &...

Page 104: Table 4-1: Pm-A1 Module Pin Description
D0(PA0) Databus[0:7] or PA[0:7] D7(PA7) PB[0:7] Address bus[0:7] A8(PC0) Address bus[8:15] / PC[0:7] A15(PC7) PD0/SCL PD[0:7] PD1/SDA PD2/RXD1 PD3/TXD1 RXD0 RXD0 connected with PE1/TXD0 through 1K ohm resistor. PE[1:7] PE4/I2CHIP_IRQ PF[0:7] © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 105 Reset Signal Input process generated by EVB B/D’s Reset Switch(SW3). 3.3V 3.3V Power Input. 5V Power Input Not Used. 10,12,21, Signal Ground 22,45,47, 48,49,50 23,24,49,50 3,5,7,9,11, RES0 RESERVED LINE 19,20,21,22 33,34,35,36, RES18 37,38,39,40, 43,44 © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 106: Table 4-2: Isp Pin Description
Power is delivered to the AVRISP 3,4,6,8,10 Ground Input Commands and data from AVRISP to EVB B/D Output Data from EVB B/D to AVRISP Input Serial Clock, Controlled by AVRISP CPU_RESET Input Reset. Controlled by AVRISP © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 107: Table 4-3: Lcd Pin Description
R6(5V Pull Up maximum 10K) and R7(Gnd Pull Down 820R) are used and, in real application, LCD Display became clear when R6 was adjusted. For details on LC1624, refer to “LC1624 Specifications” document. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 108: Table 4-4: Expanded Board Interface Pin Description
Parallel Data Bus[0:7] 79,47,80,48 D4, D5, D6, D7 Parallel Bus Read Strobe Parallel Bus Write Strobe PAL_OUT_0 Reserved Parallel Bus Chip Select / Enable PAL_OUT_4 SDA/PD0 I2C Bus Data Line/ Port D0 © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 109 No. 8 Pin and GND became Short in AVR 82,88,94 Module. Expanded Board Interface Connector, which is “PCN10BK-96S-2.54DS” of Hirose co., is a Din Connector 96Pin Female Rightangle Type. Connector of Male Type that is mated here is “PCN10-96P-2.54DS.” © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 110: Power Regulator
EVB B/D gets 5V DC power through power adaptor. The powers used inside the board are 5V and 3.3 V. The regulator is LT1963EST-3.3(U1). To shut down the regulator, Toggle Switch(SW1) is used. 4.2.8. 3.3V Power On System Reset Manual reset and Power On Reset is implemented using RC analog circuit. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 111: Schematic
4.3. Schematic 4.3.1. W5100E01-AVR Please refer to “W5100E01-AVR.DSN” in the CD. 4.3.2. PM-A1 Please refer to “PM-A1.DSN” in the CD. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 112: Io Define
Addr : in std_logic_vector(15 downto 10); : in std_logic; : in std_logic; nRAMCS : out std_logic; nCS_IINCHIP : out std_logic; LCDCS : out std_logic The following is CUPL Source code. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 113: External Sram Area
The following is a CUPL Source Code that makes SRAM CS. /* < 0x8000 */ !nCS_RAM = !A15; 4.4.3. LCD Area LCD is ranged 0x9000 ~ 0x9400. WR and RD Signal are used together to control the timing. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 114: W5100 Area
LCD_E = (A15 & !A14 & !A13 & A12 & !A11 & !A10) & (!nRD # !nWR); LCD is High Active Enable Signal. 4.4.4. W5100 Area In case of W5100, the address is divided into 2 parts about same Chip. For more details, refer to “W5100 Datasheet” © Copyright 2007 WIZnet Co., Inc. All rights reserved.
Page 115 !nCS_IINCHIP = (A15 & !A14 & !A13 & !A12 & !A11) # (A15 & A14); For VHDL Source Code, refer to “EVB_PAL.VHD” in the CD. For CUPL Source Code, refer to “EVB_PAL.PLD” in the CD. Please refer to “AVR Tool Guide.pdf” for compiling. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 116: Parts List
4.5. Parts List 4.5.1. W5100E01-AVR Parts List Please refer to “W5100E01-AVR_PARTLIST.PDF” in the CD. 4.5.2. PM-A1 Parts List Please refer to “PM-A1_PARTLIST.PDF” in the CD. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

Page 117: Evb B/D Power Consumption
Power consumption of each component of EVB B/D is as in the following table. < Table 4-5 EVB B/D Power Consumption > Power Level UNIT 3.3V Total Power consumption is 243mA X 5V = 1215mW. © Copyright 2007 WIZnet Co., Inc. All rights reserved.

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Wiznet W5100E01-AVR User Manual

1 Overview

2 Getting Started

3 Programmer's Guide

Fig 3.3: EVB B/D's Main()

4 Hardware Designer's Guide

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