PIG ETH Installation

Kernel upgrade

In order to use this extension you have to upgrade to a kernel containing the w5x00 ethernet driver module by typing:

sudo REPO_URI=https://github.com/tostmann/rpi-busware rpi-update sudo reboot

Ethernet

Create a file /etc/modprobe.d/ethernet.conf:

options w5x00 param_mac=0xa4,0x50,0x55,1,2,3 param_select=1 param_pin_interrupt=25 param_pin_reset=24

(if you run more than one board within same network, please modify param_mac to keep it unique)

To initialize ethernet at startup add to /etc/modules:

w5x00

or at runtime do:

modprobe w5x00

The interface is automatically brought up and named either eth0 or eth1, depending on yr Pi-version. Try:

ifconfig

You can configure it further within /etc/network/interfaces.

If you can’t see it try manual starting it by:

ifup eth0 or ifup eth1

Be aware that max speed on this interface is about 3Mbps. The number of concurrent open sockets is 8!

RTC

The extension ist equipped with an backed up Real Time Clock. It stores its energy in an on-board supercapacitor. This will last for about 3 days. access the RTC by:

sudo hwclock

set it by:

sudo hwclock -w

Tell Raspberry to automatically use it:

sudo apt-get remove fake-hwclock sudo rm /etc/cron.hourly/fake-hwclock sudo update-rc.d -f fake-hwclock remove sudo rm /etc/init.d/fake-hwclock sudo update-rc.d hwclock.sh enable

Modul connector

RPis serial port /dev/ttyAMA0 ist directly connected to modul. Other assignments as below:

Many modules use the RESET pin. To enable those you must pull RESET HIGH by doing:

sudo echo 22 > /sys/class/gpio/export sudo echo out > /sys/class/gpio/gpio22/direction sudo echo 1 > /sys/class/gpio/gpio22/value

EEPROM

The configuration EEPROMs are available at:

• PIGATOR board EEPROM -> sudo hexdump /sys/class/i2c-adapter/i2c-1/1-0057/eeprom
• MODUL SLOT EEPROM -> sudo hexdump /sys/class/i2c-adapter/i2c-1/1-0050/eeprom The EEPROMs are write protected, programmed at manufacture - but currently mostly empty…