This is WIZnet Ethernet Interface using Hardware TCP/IP chip, W5500, W5200 and W5100. One of them can be selected by enabling it in wiznet.h.

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other drivers

for only W5500 / WIZ550io user, you could use

Import libraryW5500Interface

This is the Interface library for WIZnet W5500 chip which forked of EthernetInterfaceW5500, WIZnetInterface and WIZ550ioInterface. This library has simple name as "W5500Interface". and can be used for Wiz550io users also.



File content as of revision 5:89edb39d8707:

*  Test program for W5500 mbed Library

#include "mbed.h"
#include "WIZnetInterface.h"

#define ECHO_SERVER_PORT   5000
const char* ECHO_SERVER_ADDRESS = "";  // Server IP address

* Setting DHCP or static
//#define USE_DHCP

* Setting the platform to test
#define LPC
//#define ST_NUCLEO
//#define FRDM_KL25Z
//#define Seeeduino_Arch

#ifdef LPC
// LPC1768 & LPC11U24
SPI spi(p5, p6, p7); // mosi, miso, sclk
WIZnetInterface eth(&spi, p8, p9); // spi, cs, reset

#ifdef ST_NUCLEO
// ST Nucleo
SPI spi(PA_7, PA_6, PA_5); // mosi, miso, sclk
WIZnetInterface eth(&spi, PB_6, PA_10); // spi, cs, reset

#ifdef FRDM_KL25Z
// Freescale FRDM KL25Z
SPI spi(PTD2, PTD3, PTD1); // mosi, miso, sclk
WIZnetInterface eth(&spi, PTD0, PTA20); // spi, cs, reset

#ifdef Seeeduino_Arch
// Seeedstudio Arch
SPI spi(P1_22, P1_21, P1_20); // mosi, miso, sclk
WIZnetInterface eth(&spi, P0_2, P0_0); // spi, cs, reset
    Serial pc(P1_13, P1_14); // tx, rx
    Serial pc(USBTX,USBRX);

#ifndef USE_DHCP
// for static IP setting
const char * IP_Addr    = "";
const char * IP_Subnet  = "";
const char * IP_Gateway = "";

int main()
    uint8_t mac[6];
    mbed_mac_address((char *)mac);     // using the MAC address in LPC11U24 or LPC1178
//    mac[0] = 0x00; mac[1] = 0x08; mac[2] = 0xDC; mac[3] = 0x00; mac[4] = 0x00; mac[5] = 0x00; 
// you can alo use WIZ550io's MAC address by enabling "USE_WIZ550IO_MAC" in wiznet.h
    #ifdef USE_DHCP
      int ret = eth.init(mac); //Use DHCP
      int ret = eth.init(mac, IP_Addr, IP_Subnet, IP_Gateway); // static

    if (!ret) {
        pc.printf("Initialized, MAC: %s\n", eth.getMACAddress());
    } else {
        pc.printf("Error eth.init() - ret = %d\n", ret);
        return -1;

    ret = eth.connect();
    if (!ret) {
        pc.printf("IP: %s, MASK: %s, GW: %s\n",
                  eth.getIPAddress(), eth.getNetworkMask(), eth.getGateway());
    } else {
        pc.printf("Error eth.connect() - ret = %d\n", ret);
        return -1;

    TCPSocketServer server;

    while (true) {
        pc.printf("\nWait for new connection...\n");
        TCPSocketConnection client;
        //client.set_blocking(false, 1500); // Timeout after (1.5)s

        pc.printf("Connection from: %s\n", client.get_address());
        char buffer[256];
        while (true) {
            int n = client.receive(buffer, sizeof(buffer));
            if (n <= 0) break;

            client.send_all(buffer, n);
            if (n <= 0) break;