Using the WIZ Ethernet library and evaluate existing Ethernet example

Link:Ethernet Shield examples

WIZnet povides the Ethernet Shield examples for GR_KURUMI. The examples(template) files of Ethernet example are prepared in “gr_ethernet_examples” folder, as like gr_ChatServer.cpp. Copy template file to your sketch file (gr_sketch.cpp) and change configuration values properly. After that, you can check if it is work well.
For example, if you want to evaluate 'ChatServer', you copy “gr_ChatServer.cpp” to “gr_scketch.cpp”. Then, you should change IP Address first and compile and download it. You can chatting through your terminal of your PC or something.

Lists of Ethernet Shield exmaple

BarometricPressureWebServer
ChatServer
DhcpAddressPrinter
DhcpChatServer
TelnetClient
Twitter_Serial_GW
Twitter_SimplePost
UDPSendReceiveString
UdpNtpClient
WebClient
WebClientRepeating
WebServer
XivelyClient
XivelyClientString

Let's Play with ioShield-K

1.Preparations

• HW : GR-KURUMI & ioShield_G, Windows PC, FTDI Module (for program), HUB (Optional)`
• SW : KURUMI Wirter, TeraTerm

2.Network Configuration

• PC
  Please, add an IP Address from the Command Line in "command prompt". The below command adds the IP Address 192.168.1.2 (with Subnet Mask 255.255.255.0) to the connection titled “Local Area Network”.

  netsh interface ipv4 add address “Local Area Connection” 192.168.1.2 255.255.255.0    
  

  Note: For Windows Server 2003/XP and earlier, “ipv4″ should be replaced with just “ip” in the netsh command.

• ioShield (ChatServer Sketch)

  // The IP address will be dependent on your local network, 
  // gateway and subnet.
  IPAddress ip(192,168,1, 177);  
  IPAddress gateway(192,168,1, 1);  
  IPAddress subnet(255, 255, 255, 0);  
  

• Tip:Subnet?

  A subnet mask hides, or "masks," the network part of a system's IP address and leaves only the host part as the machine identifier. A common subnet mask for a Class C IP address is 255.255.255.0. Each section of the subnet mask can contain a number from 0 to 256, just like an IP address.
  The last section of each computer's IP address can be anything from 0 to 255. For example, the IP addresses 192.168.1.2 and 192.168.1.177 would be in the same subnet, while 192.168.2.201 would not. Therefore, a subnet mask of 255.255.255.0 allows for close to 256 unique hosts within the network (since not all 256 IP addresses can be used).

3.Program Your Sketch

1. Select the Serial Port (ex. USB Serial Port(COM16))
   
2. Set "500000" baud rate for USB Serial port
   
3. Select your sketch bin file
   
4. Check the check box for "Run after COM open"
5. Click the "Write" button for programming your sketch with above configurations.

4. Configurations Serial Port for ChatServer

Bard rate    : 9600
Data         : 8bit
Parity       : none
Stop         : 1bit
Flow control : none    

• Check #1 : Listening on ChatServer
  Check the message of "Chat server address:192.168.1.177" on Serial Port terminal.

5. Configurations Serial Port for ChatClient

5. Chatting Messages

• Chat Client
  -Receiving hello message from ChatServer after clicking enter-key at teraterm window
  

• Chat Server
  -Receiving "ABCDE" message from ChatClient and print-out the message