Example ESP32_PoE_Ethernet_Arduino does not connect (last event SYSTEM_EVENT_ROC_DONE ) ESP32-POE Rev G

[edrethardo]

Heyho, I'm using the example code with added debug prints on the ESP32-POE Rev G Board

My console ouput is: starting Ethernet ETH Any other event 18 ETH Any other event 20 ETH Any other event 22

I'm connected to a Router with DHCP but I'm not using POE right now as I'm using the serial console via USB for debugging purposes to avoid damaging my Computer. The device is powered by my computers USB 3 connector I'm using VsCode + PlatformIO extension as IDE and upload and monitor to flash the device and connect to the Serial Interface

it's notable that the gateway and dns server are not the same in our network, could it be I need to set those parameters manually? Did maybe anything relevant to this change between Rev.B and G I didn't notice? do I explicitly need to use POE in this example? My code is attached below

#define ETH_CLK_MODE ETH_CLOCK_GPIO17_OUT
#define ETH_PHY_POWER 12

#include <ETH.h>

static bool eth_connected = false;

void WiFiEvent(WiFiEvent_t event)
{
  switch (event) {
    case SYSTEM_EVENT_ETH_START:
      Serial.println("ETH Started");
      //set eth hostname here
      ETH.setHostname("esp32-ethernet");
      break;
    case SYSTEM_EVENT_ETH_CONNECTED:
      Serial.println("ETH Connected");
      break;
    case SYSTEM_EVENT_ETH_GOT_IP:
      Serial.print("ETH MAC: ");
      Serial.print(ETH.macAddress());
      Serial.print(", IPv4: ");
      Serial.print(ETH.localIP());
      if (ETH.fullDuplex()) {
        Serial.print(", FULL_DUPLEX");
      }
      Serial.print(", ");
      Serial.print(ETH.linkSpeed());
      Serial.println("Mbps");
      eth_connected = true;
      break;
    case SYSTEM_EVENT_ETH_DISCONNECTED:
      Serial.println("ETH Disconnected");
      eth_connected = false;
      break;
    case SYSTEM_EVENT_ETH_STOP:
      Serial.println("ETH Stopped");
      eth_connected = false;
      break;
    default:
    Serial.printf("ETH Any other event %u \n", event);
      break;
  }
}

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

  WiFiClient 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()
{
  Serial.begin(115200);
  delay(10000);
  Serial.println("\n starting Ethernet");
  WiFi.onEvent(WiFiEvent);
  ETH.begin();
}

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

Thank You for any suggestions

[FStefanni]

Hi,

I have a rev D, but it does not work too. I am using PoE with 48V, since it is stated that the chip to work must be powered.

No fix found at the moment...

Regards

[FStefanni]

Hi,

some news: it seems to be a BSP bug, that I reported here:

https://github.com/espressif/arduino-esp32/issues/7007

Regards.

[FStefanni]

Hi,

the issue is resolved: as pointed out in the previously linked issue, the updated example works. Events have changed names, but the Olimex example has not been updated. Here the link to the updated official esp32/arduino example: https://github.com/espressif/arduino-esp32/blob/master/libraries/Ethernet/examples/ETH_LAN8720/ETH_LAN8720.ino

Regards

[DanKoloff]

Thanks for the update, I will keep it open as a reminder until we find time to update all Ethernet examples to the new definitions.