MyM5StackExamples/M5Tab5/EthernetModuleBaseTest/EthernetModuleBaseTest.ino at main · felmue/MyM5StackExamples · GitHub

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// Copyright (c) 2025 by GWENDESIGN. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
// https://github.com/m5stack/M5GFX
// https://github.com/m5stack/M5Unified
//
// Adapted from:
// https://github.com/espressif/arduino-esp32/blob/master/libraries/Ethernet/examples/ETH_W5500_Arduino_SPI/ETH_W5500_Arduino_SPI.ino
//
// Note: ETH GPIOs are for M5Stack Module 13.2 LAN stacked to M5Tab5
//       ETH1 GPIOs are for M5Stack Base LAN stacked to M5Tab5

#include <M5Unified.h>
#include <ETH.h>
#include <SPI.h>

// Set this to 1 to enable dual Ethernet support
#define USE_TWO_ETH_PORTS 0

#undef ETH_PHY_TYPE

#ifndef ETH_PHY_CS
#define ETH_PHY_TYPE ETH_PHY_W5500
#define ETH_PHY_ADDR 1
#define ETH_PHY_CS   4  // M5Stack Bus: 5
#define ETH_PHY_IRQ  16 // M5Stack Bus: 35
#define ETH_PHY_RST  35 // M5Stack Bus: 0
#endif

#define ETH_SPI_SCK  5  // M5Stack Bus: 18
#define ETH_SPI_MISO 19 // M5Stack Bus: 19
#define ETH_SPI_MOSI 18 // M5Stack Bus: 23

#if USE_TWO_ETH_PORTS
// Second port on shared SPI bus
#ifndef ETH1_PHY_CS
#define ETH1_PHY_TYPE ETH_PHY_W5500
#define ETH1_PHY_ADDR 1
#define ETH1_PHY_CS   52 // M5Stack Bus 26
#define ETH1_PHY_IRQ  51 // M5Stack Bus 34
#define ETH1_PHY_RST  48 // M5Stack Bus 13
#endif
ETHClass ETH1(1);
#endif

static bool eth_connected = false;

void onEvent(arduino_event_id_t event, arduino_event_info_t info)
{
  switch(event)
  {
    case ARDUINO_EVENT_ETH_START:
      Serial.println("ETH Started");
      ETH.setHostname("esp32-eth0");
    break;
    case ARDUINO_EVENT_ETH_CONNECTED:
      Serial.println("ETH Connected");
    break;
    case ARDUINO_EVENT_ETH_GOT_IP:
      Serial.printf("ETH Got IP: '%s'\n", esp_netif_get_desc(info.got_ip.esp_netif));
      Serial.println(ETH);
#if USE_TWO_ETH_PORTS
      Serial.println(ETH1);
#endif
      eth_connected = true;
    break;
    case ARDUINO_EVENT_ETH_LOST_IP:
      Serial.println("ETH Lost IP");
      eth_connected = false;
    break;
    case ARDUINO_EVENT_ETH_DISCONNECTED:
      Serial.println("ETH Disconnected");
      eth_connected = false;
    break;
    case ARDUINO_EVENT_ETH_STOP:
      Serial.println("ETH Stopped");
      eth_connected = false;
    break;
    default:
    break;
  }
}

void testClient(const char *host, uint16_t port)
{
  Serial.print("\nconnecting to ");
  Serial.println(host);

  NetworkClient client;
  if(!client.connect(host, port))
  {
    Serial.println("connection failed");
    return;
  }
  client.printf("GET / HTTP/1.1\r\nHost: %s\r\n\r\n", host);
  while(client.connected() && !client.available());
  while(client.available())
  {
    Serial.write(client.read());
  }
  Serial.println("closing connection\n");
  client.stop();
}

void setup()
{
  auto cfg = M5.config();
  cfg.serial_baudrate = 115200;
  M5.begin(cfg);

  delay(3000);
  Serial.printf("*** Starting...\n");

  M5.Display.setTextSize(4);
  M5.Display.println("   M5Tab5 Ethernet Test v1.1");
  delay(1000);

  Network.onEvent(onEvent);

  ETH.begin(ETH_PHY_TYPE, ETH_PHY_ADDR, ETH_PHY_CS, ETH_PHY_IRQ, ETH_PHY_RST, SPI3_HOST, ETH_SPI_SCK, ETH_SPI_MISO, ETH_SPI_MOSI);

#if USE_TWO_ETH_PORTS
  ETH1.begin(ETH1_PHY_TYPE, ETH1_PHY_ADDR, ETH1_PHY_CS, ETH1_PHY_IRQ, ETH1_PHY_RST, SPI3_HOST);
#endif
}

void loop()
{
  if(eth_connected)
  {
    testClient("google.com", 80);
  }
  delay(10000);
}