AN00120: XMOS 100Mbit Ethernet application note

Summary¶

Ethernet connectivity is an essential part of the explosion of connected devices known collectively as the Internet of Things (IoT). XMOS technology is perfectly suited to these applications - offering future proof and reliable ethernet connectivity whilst offering the flexibility to interface to a huge variety of “Things”.

This example that demonstrates the use of the XMOS Ethernet library to create a layer 2 ethernet MAC interface on an XMOS multicore microcontroller.

The code associated with this application note provides an example of using the Ethernet Library to provide a framework for the creation of an ethernet Reduced Media Independent Interface (RMII) and MAC interface for 100Mbps.

The application note uses lib_ethernet to provide a simple IP stack capable of responding to an ICMP ping message. The code used in the application note provides both RMII communication to the PHY and a MAC transport layer for ethernet packets and enables a client to connect to it and send/receive packets.

Features¶

• RMII L2 MAC interface

• SMI serial interface

• ICMP packet processing

Known issues¶

• None

Required tools¶

• XMOS XTC Tools: 15.3.1

Required libraries (dependencies)¶

• lib_ethernet

• lib_logging

• lib_board_support

Related application notes¶

• AN00199: XMOS Gigabit Ethernet application note (XK_EVK_XE216)