I am having trouble with the official Ethernet Shield (with SD card slot as shown here:
http://arduino.cc/en/Main/ArduinoEthernetShield).
If I have it connected to the top of my duemilanove all is sweet and everything works as expected. However the case I am bulding my project in does not have enough head height for this configuration so I am wanting to have the ethernet shield side-by-side with the duemilanove board.
I have connected from the Ardunio pins 10, 11, 12 and 13 and +5v and GND to the Ethernet Shield, but it is not operating correctly. Have I missed something on the specification? I thought that these were the only pins that the Ethernet Shield requires? Do I also have to connect the ICSP pins? (i.e. the 6 pins located next to the SD card slot).
I do not want to us ethe SD slot, just the Ethernet port.
Any assistance would be most greatfully received.