AN00199 : XMOS Gigabit Ethernet application note

Overview#

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 application note shows a simple example that demonstrates the use of the XMOS Ethernet library to create a gigabit 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 Gigabit Media Independent Interface (RGMII) and MAC interface for gigabit data rates.

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 MII communication to the PHY and a MAC transport layer for ethernet packets and enables a client to connect to it and send/receive packets.

Key features#

• RGMII 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_xassert

• lib_board_support

• lib_otpinfo

Related notes#

• AN00120: 100Mbps RMII ethernet example

Support#

This package is supported by XMOS Ltd. Issues can be raised against the software at: http://www.xmos.com/support