Helpful information for users of Arduino Ethernet Shield v5

When working with an Arduino Ethernet Shield v5 and using, for example, the 
eventlog sketch included in the download the call to sd.init() returns a card 
init error = 1

This error results from the Arduino shield sharing the SPI bus b/n the ethernet 
chip and sd card.  It uses pin 4 as the CS pin for the SD card.  Modifying the 
call to sd.init as below allows the code to work.

Replace this block -
  // Initialize SdFat - print detailed message for failure
  if (!sd.init()) sd.initErrorHalt();

With this -

  // Initialize SdFat - print detailed message for failure
  pinMode(10, OUTPUT); // set the SS pin as an output
  digitalWrite(10, HIGH); 
  if (!sd.init(SPI_FULL_SPEED,4)) sd.initErrorHalt();

I expect this will work with the other examples too

Original issue reported on code.google.com by daviespg...@gmail.com on 10 Apr 2011 at 3:50

fredericplante / beta-lib

Helpful information for users of Arduino Ethernet Shield v5 #2