Only for Wiznet W5500 chip

Home of Ethernet3

https://github.com/sstaub/Ethernet3

The below is copied from https://github.com/sstaub/Ethernet3

New init procedure

You can de- or increase the RAM-Size for the sockets, this must be done before Ethernet.begin(...)

The possible socketnumbers are:

Ethernet.init(1); -> 1 Socket with 16k RX/TX buffer
Ethernet.init(2); -> 2 Socket with 8k RX/TX buffer
Ethernet.init(4); -> 4 Socket with 4k RX/TX buffer
Ethernet.init(); -> 8 Socket with 2k RX/TX buffer

Be carefull with the MAX_SOCK_NUM in w5500.h , it cannot changed dynamicly.

example

Ethernet.init(4); // reduce to 4 Socket, each with 4k RX/TX buffer
Ethernet.begin();

RST and CS pin settings

You can set the CS and (Hardware) RST (e.g. WIZ550io or USR-ES1), this must be done before Ethernet.begin(...)

Standard is Pin 10 for CS and Pin 9 for RST

Ethernet.setCsPin(3); // set Pin 3 for CS
Ethernet.setRstPin(4); // set Pin 4 for RST

example

Ethernet.setRstPin(); // set Pin 9 for RST
Ethernet.begin();