Raspberry Pi EtherCAT Master (PiCAT)

Project description

In previous post, I explained the reason?we need to use external Ethernet chip (W5500) to achieve hard-reatime EtherCAT Master on RPI. This post describes how to use W5500 module and Raspberry pi to make your own EtherCAT master controller which we call PiCAT DIY Hardware (test only, not recommended for serious applications) W5500 is an?embedded Ethernet controller by Wiznet?supporting only SPI communication up to 80 MHz. Although W5500 is designed as Hardwired TCP/IP controller, it also supports raw Ethernet frame (called MACRAW mode) which is ideal for EtherCAT communication development…