ArduinoSD

FirewingUser.ArduinoSD History

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May 07, 2013, at 09:55 AM by David Barker -
Deleted lines 4-12:
/*
  SD card test

  created  28 Mar 2011
  by Limor Fried
  modified 9 Apr 2012
  by Tom Igoe
 */
 
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May 07, 2013, at 09:55 AM by David Barker -
Changed lines 1-3 from:
This program has been tested on the Arduino UNO R3. It will work on a Firewing shield that has a Secure Digital (SD) card installed.

More code examples, in addition to the one shown below, can be found [[http://arduino.cc/en/Tutorial/Datalogger | here]].
to:
This program has been tested on the Arduino UNO R3. It will work on a Firewing shield that has a Secure Digital (SD) card installed. More code examples, in addition to the one shown below, can be found %newwin%[[http://arduino.cc/en/Tutorial/Datalogger | here]].
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May 07, 2013, at 09:54 AM by David Barker -
Changed lines 1-3 from:


http://arduino.cc/en/Tutorial/Datalogger
to:
This program has been tested on the Arduino UNO R3. It will work on a Firewing shield that has a Secure Digital (SD) card installed.

More code examples, in addition to the one shown below, can be found [[http://arduino.cc/en/Tutorial/Datalogger | here]].

!!!Arduino Code
=cpp [=
/*
  SD card test

  created  28 Mar 2011
  by Limor Fried
  modified 9 Apr 2012
  by Tom Igoe
 */
 
 // include the SD library:
#include <SD.h>

// set up variables using the SD utility library functions:
Sd2Card card;
SdVolume volume;
SdFile root;

// change this to match your SD shield or module;
const int chipSelect = 10;   

void setup()
{
 // Open serial communications and wait for port to open:
  Serial.begin(9600);
  Serial.print("\nInitializing SD card...");
 
  // On the Ethernet Shield, CS is pin 4. It's set as an output by default.
  // Note that even if it's not used as the CS pin, the hardware SS pin
  // (10 on most Arduino boards, 53 on the Mega) must be left as an output
  // or the SD library functions will not work.
  pinMode(10, OUTPUT);    // change this to 53 on a mega


  // we'll use the initialization code from the utility libraries
  // since we're just testing if the card is working!
  if (!card.init(SPI_HALF_SPEED, chipSelect)) {
    Serial.println("initialization failed. Things to check:");
    Serial.println("* is a card is inserted?");
    Serial.println("* Is your wiring correct?");
    Serial.println("* did you change the chipSelect pin to match your shield or module?");
    return;
  } else {
  Serial.println("Wiring is correct and a card is present.");
  }

  // print the type of card
  Serial.print("\nCard type: ");
  switch(card.type()) {
    case SD_CARD_TYPE_SD1:
      Serial.println("SD1");
      break;
    case SD_CARD_TYPE_SD2:
      Serial.println("SD2");
      break;
    case SD_CARD_TYPE_SDHC:
      Serial.println("SDHC");
      break;
    default:
      Serial.println("Unknown");
  }

  // Now we will try to open the 'volume'/'partition' - it should be FAT16 or FAT32
  if (!volume.init(card)) {
    Serial.println("Could not find FAT16/FAT32 partition.\nMake sure you've formatted the card");
    return;
  }

  // print the type and size of the first FAT-type volume
  uint32_t volumesize;
  Serial.print("\nVolume type is FAT");
  Serial.println(volume.fatType(), DEC);
  Serial.println();
 
  volumesize = volume.blocksPerCluster();    // clusters are collections of blocks
  volumesize *= volume.clusterCount();      // we'll have a lot of clusters
  volumesize *= 512;                        // SD card blocks are always 512 bytes
  Serial.print("Volume size (bytes): ");
  Serial.println(volumesize);
  Serial.print("Volume size (Kbytes): ");
  volumesize /= 1024;
  Serial.println(volumesize);
  Serial.print("Volume size (Mbytes): ");
  volumesize /= 1024;
  Serial.println(volumesize);

  Serial.println("\nFiles found on the card (name, date and size in bytes): ");
  root.openRoot(volume);
 
  // list all files in the card with date and size
  root.ls(LS_R | LS_DATE | LS_SIZE);
}

void loop(void) {
}
=]
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May 07, 2013, at 09:52 AM by David Barker -
Added lines 1-4:


http://arduino.cc/en/Tutorial/Datalogger
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