查看“Microduino W5500 Network (1)”的源代码

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==Purpose==
This course will show you how to have a Ping connection with Microduino-W5500. 
==Equipment==
*'''[[Microduino-Core]]'''
*'''[[Microduino-USBTTL]]'''
*'''[[Microduino-W5500]]'''
*'''[[Microduino-RJ45]]'''

*Other Hardware Equipment 
**USB cable   One
==Schematic==

*Microduino-W5500
*Microduino-RJ45
*Microduino-Core
*Microduino-USBTTL
Stack them and then plug in network cable.  

Just as follows: 

[[File:MicroduinoW5500Show.png|600px|center|thumb]]

Pin picture of Microduino W5500：

*Pin Description: 
{|class="wikitable"
! rowspan="1" | Pin name of W5500 ||Microduino pin || Function
|-
| SO || D11|| Data output of SPI interface   
|-
| SI|| D12|| Data input of SPI interface   
|-
| SCK|| D13|| Clock input of SPI interface  
|-
| CS||D10 by default(Also can be changed to D8) || Chip selection input of SPI interface 
|-
| RESET|| RESET|| Low-level effective device reset input
|}

==Program==

[[https://github.com/Microduino/Microduino_Tutorials/tree/master/Microduino_Advanced_Tutorial/W5500Code/MicroduinoW5500One MicroduinoW5500One]]

==Debugging==

Step 1: First, make sure you have _02_Microduino_Ethernet_WIZ library in your IDE. If not, please download and put it into your library folder of IDE and restart IDE.  

Step 2: If there is previous Ethernet in the library folder of IDE, you need to delete it since the previous Ethernet is compiled according to W5100 protocol.  

Then, you need to change _02_Microduino_Ethernet_WIZ file to make library functions corresponding with Microduino in pin. 

Find w5100.h in utility folder in _02_Microduino_Ethernet_WIZ library.  
 
Change #define wiz_cs_pin 8	//CS_PIN of the code to #define wiz_cs_pin 10	//CS_PIN.  

Step 3: Explain the code:  
Define the IP address and port: 
  // Enter a MAC address and IP address for your controller below.
  // The IP address will be dependent on your local network.
  // gateway and subnet are optional:
  byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
  
  IPAddress ip(192,168,1, 177);
  IPAddress gateway(192,168,1, 1);
  IPAddress subnet(255, 255, 255, 0);
  
  // telnet defaults to port 23
  EthernetServer server(23);
  boolean alreadyConnected = false; // whether or not the client was connected previously
We start service of 23 port in the code and point to a specified IP address.  
  // initialize the ethernet device
  Ethernet.begin(mac, ip, gateway);
Start service 
Step 4: Download the code and pass the compiling. 

Step 5: Ping connection! 

The simplest way to have a ping connection of W5500 is to check if it is networked correctly. Enter Ping in the computer and check the IP address of the device.  

[[File:MicroduinoW55001.png|600px|center|thumb]]

==Result==

When it is showed as the picture above, it means “connected to network”. 

==Video==


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