WIZnet / Mbed 2 deprecated WizFi310_TCP_Echo_Server_Example

TCP Echo Server Example using WizFi310

Dependencies:   NetworkSocketAPI WizFi310Interface mbed

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Table of Contents

  1. Prerequisite
  2. Hardware Configuration
  3. Software
  4. Caution

Prerequisite

This example shows that Wizwiki-W7500 and WizFi310 operates as a TCP server.

When receiving data from a TCP client, it returns same data.

To implement this function, you need a Platform board and Wi-Fi board. Below are what we used.

  • WIZwiki-W7500 from WIZnet (Platform board)
  • WizFi310 from WIZnet (Wi-Fi board)

Hardware Configuration

WIZwiki-W7500 Pin map

pin map

WizFi310 Shield Pin map

pin map

Software

Connect to Wi-Fi

wifi.connect(AP_SSID, AP_PASSWORD, AP_SECURITY);

Get information

const char *ip = wifi.get_ip_address();
const char *mac = wifi.get_mac_address();

Receive data and return to TCP client

while (true)
{
    int n = clt_sock.recv(buffer, sizeof(buffer));
    if( n < 0 )
    {
        clt_sock.close();
        srv.close();
    }
    if( n > 0 )
    {
        buffer[n] = '\0';
        printf("length : %d\r\n", n);
        clt_sock.send(buffer, n);
    }
}

Caution

TCP client and server should be in a same network.

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