ESP32 WROOVER IE LAN8720 Ethernet Connection Problem
Posted: Thu Sep 26, 2024 8:13 am
Hello everyone. I am new at IOT and ethernet connections. I made a custom ESP32 board, used chip ESP32 WROOVER IE and for a ethernet connection used a lan8720 ethernet module I checked my schematic all its looks like true and I checked my 50 mHz internal clock from GPIO0 its perfectly gives 50mHz clean signal. My problem is I cant connect any devices with ethernet. My pin configurations completely true. When I uploaded the code I wrote down below its not getting any errors. I can read my lan8720's mac adress but if I dont add my static ip in code IPv4:0.0.0.0 returns at the serial monitor. After that I tried to write static IP in code IPv4:192.168.127.244 shows as I initialized but still cant connect. After all of these when I pressed my BOOT button serial monitor writes ETH Connected when I didnt press the boot button ETH Disconnected occurs. I tested with keep pressed on to boot button and I saw the ETH Connected information came from serial monitor and checked connection, still couldnt connected. I really need help for that. What's am I doing wrong? Also Is arduino IDE version effective?
Code: Untitled.c Select all
/*
This sketch shows the Ethernet event usage
*/
#define ETH_PHY_TYPE ETH_PHY_LAN8720
#define ETH_PHY_ADDR 0
#define ETH_PHY_MDC 23
#define ETH_PHY_MDIO 18
#define ETH_CLK_MODE ETH_CLOCK_GPIO0_OUT
#define ETH_PHY_POWER 4
#include <ETH.h>
IPAddress staticIP(192, 168, 127, 244);
IPAddress gateway(192, 168, 127, 1);
IPAddress subnet(255, 255, 255, 0);
static bool eth_connected = false;
void WiFiEvent(WiFiEvent_t event)
{
switch (event) {
case ARDUINO_EVENT_ETH_START:
Serial.println("ETH Started");
//set eth hostname here
ETH.setHostname("esp32-ethernet");
break;
case ARDUINO_EVENT_ETH_CONNECTED:
Serial.println("ETH Connected");
break;
case ARDUINO_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 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);
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);
WiFi.onEvent(WiFiEvent);
pinMode(ETH_PHY_POWER, OUTPUT);
digitalWrite(ETH_PHY_POWER, HIGH);
if (!ETH.begin(ETH_PHY_ADDR, ETH_PHY_POWER, ETH_PHY_MDC, ETH_PHY_MDIO, ETH_PHY_TYPE)) {
Serial.println("ETH start Failed!");
}
else{ ETH.config(staticIP, gateway, subnet);
}
}
void loop()
{
Serial.print("ETH MAC: ");
Serial.print(ETH.macAddress());
Serial.print(", IPv4: ");
Serial.println(ETH.localIP());
delay(1000);
}