readConfigSdCard

#include <SD.h>
#include <Ethernet.h>
#include <SPI.h>
#include <stdio.h>

#define pinSD 10
#define selectSD 4
// name of file
File myFile;

// input stream read from sdcard
char inData;
// store data stream var
String setting[30];

int count;

void setup() {
  Serial.begin(9600);
  // output for sdcard
  pinMode(pinSD, OUTPUT);

  // check sdcard
  if(!SD.begin(selectSD)) {
    Serial.println("Initializatioin failed");
    return;
  }
  Serial.println("Initialization done");

  // open file
  myFile = SD.open("SETTING.TXT");

  // read the files
  if(myFile) {
    Serial.println("read the file");
    count = 0;
    while(myFile.available()) {
      inData = myFile.read();
      if(inData != '\n') {
        // store inData in setting array
        setting[count] += inData;
      } else {
        count++;
      }
    }
   // close file
   myFile.close();
   } else {
    Serial.println("Error opening file");
   }
}

void loop() {
// nothing todo in this loop();
}