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ethernet: type: LAN8720 mdc_pin: GPIO23 mdio_pin: GPIO18 clk_mode: GPIO0_IN phy_addr: 1 power_pin: GPIO16 |
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/* This sketch shows how to configure different external or internal clock sources for the Ethernet PHY */ #include <ETH.h> /* * ETH_CLOCK_GPIO0_IN - default: external clock from crystal oscillator * ETH_CLOCK_GPIO0_OUT - 50MHz clock from internal APLL output on GPIO0 - possibly an inverter is needed for LAN8720 * ETH_CLOCK_GPIO16_OUT - 50MHz clock from internal APLL output on GPIO16 - possibly an inverter is needed for LAN8720 * ETH_CLOCK_GPIO17_OUT - 50MHz clock from internal APLL inverted output on GPIO17 - tested with LAN8720 */ #ifdef ETH_CLK_MODE #undef ETH_CLK_MODE #endif #define ETH_CLK_MODE ETH_CLOCK_GPIO0_IN // Pin# of the enable signal for the external crystal oscillator (-1 to disable for internal APLL source) #define ETH_POWER_PIN 16 // Type of the Ethernet PHY (LAN8720 or TLK110) #define ETH_TYPE ETH_PHY_LAN8720 // I²C-address of Ethernet PHY (0 or 1 for LAN8720, 31 for TLK110) #define ETH_ADDR 1 // Pin# of the I²C clock signal for the Ethernet PHY #define ETH_MDC_PIN 23 // Pin# of the I²C IO signal for the Ethernet PHY #define ETH_MDIO_PIN 18 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: 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); ETH.begin(ETH_ADDR, ETH_POWER_PIN, ETH_MDC_PIN, ETH_MDIO_PIN, ETH_TYPE, ETH_CLK_MODE); } void loop() { if (eth_connected) { testClient("google.com", 80); } delay(10000); } |
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