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# Ethernet3
Ethernet library for Arduino and Ethernetshield2 / WIZ550io / WIZ850io with Wiznet W5500 chip
based on the Ethernet2 library of arduino.org
added some new functionalities
you need to include
#include <Ethernet3.h> // instead Ethernet.h
#include <EthernetUdp3.h> // instead EthernetUdp.h for UDP functionality
###- New init procedure **!!!**
the init of the Ethernetinterface changed, the ordner is now:
*mac, ip, subnet, gateway, dns* instead *mac, ip, dns, gateway, subnet*,
which is more logical
Ethernet.begin(mac, ip, subnet, gateway, dns);
###- Multicast support
multicast for udp added
EthernetUdp udp
upd.beginMulticast(multicastIP, port);
###- PHY support
added some function to read the PHYCFGR in Ethernet3
uint8_t phyState(); // returns the PHYCFGR
uint8_t link(); // returns the linkstate, 1 = linked, 0 = no link
const char* linkReport(); // returns the linkstate as a string
uint8_t speed(); // returns speed in MB/s
const char* speedReport(); // returns speed as a string
uint8_t duplex(); // returns duplex mode 0 = no link, 1 = Half Duplex, 2 = Full Duplex
const char* duplexReport(); // returns duplex mode as a string
example
Serial.println(Ethernet.linkReport());
###- MAC address
added some function to read the MAC address in Ethernet3, this is helpfull when you use Wiznet boards like WIZ550io with build in MAC address
void macAddress(uint8_t mac[]); // get the MAC Address
const char* macAddressReport(); // returns the the MAC Address as a string
example
uint8_t mac[6]; // array for mac address
Ethernet.macAddress(mac);
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