Using ethernet from user space

Roadrunner & Berta D2

On Berta D2 board the Ethernet section normally is turned-off

To turn it on wire the line EN ETHN to GND on J6 pin or wire the ENABLE ETHN to a GPIO line and control the power-on by software.

Linux configuration

Set a static IP address

By default the Linux images available on this site gets the IP address from the local DHCP server.

This is the default configuration of eth0 lan interface saved in /etc/network/interfaces :

allow-hotplug eth0
iface eth0 inet dhcp

To set a static IP address change this section in:

allow-hotplug eth0
iface eth0 inet static
    address 192.168.1.90
    netmask 255.255.255.0
    gateway 192.168.1.1

Author:
Sergio Tanzilli - tanzilli@acmesystems.it
http://www.tanzilli.com - https://github.com/tanzilli