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infoSDcard

Mar 3rd, 2018
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  1. /*
  2.   SD card test
  3.  
  4.  This example shows how use the utility libraries on which the'
  5.  SD library is based in order to get info about your SD card.
  6.  Very useful for testing a card when you're not sure whether its working or not.
  7.  
  8.  The circuit:
  9.   * SD card attached to SPI bus as follows:
  10.  ** MOSI - pin 11 on Arduino Uno/Duemilanove/Diecimila
  11.  ** MISO - pin 12 on Arduino Uno/Duemilanove/Diecimila
  12.  ** CLK - pin 13 on Arduino Uno/Duemilanove/Diecimila
  13.  ** CS - depends on your SD card shield or module.
  14.         Pin 4 used here for consistency with other Arduino examples
  15.  
  16.  
  17.  created  28 Mar 2011
  18.  by Limor Fried
  19.  modified 9 Apr 2012
  20.  by Tom Igoe
  21.  */
  22. // include the SD library:
  23. #include <SPI.h>
  24. #include <SD.h>
  25.  
  26. // set up variables using the SD utility library functions:
  27. Sd2Card card;
  28. SdVolume volume;
  29. SdFile root;
  30.  
  31. // change this to match your SD shield or module;
  32. // Arduino Ethernet shield: pin 4
  33. // Adafruit SD shields and modules: pin 10
  34. // Sparkfun SD shield: pin 8
  35.  
  36. const int chipSelect = 4;
  37.  
  38. void setup() {
  39.   // Open serial communications and wait for port to open:
  40.   Serial.begin(9600);
  41.   while (!Serial) {
  42.     ; // wait for serial port to connect. Needed for native USB port only
  43.   }
  44.  
  45.  
  46.   Serial.print("\nInitializing SD card...");
  47.  
  48.   // we'll use the initialization code from the utility libraries
  49.   // since we're just testing if the card is working!
  50.   if (!card.init(SPI_HALF_SPEED, chipSelect)) {
  51.     Serial.println("initialization failed. Things to check:");
  52.     Serial.println("* is a card inserted?");
  53.     Serial.println("* is your wiring correct?");
  54.     Serial.println("* did you change the chipSelect pin to match your shield or module?");
  55.     return;
  56.   } else {
  57.     Serial.println("Wiring is correct and a card is present.");
  58.   }
  59.  
  60.   // print the type of card
  61.   Serial.print("\nCard type: ");
  62.   switch (card.type()) {
  63.     case SD_CARD_TYPE_SD1:
  64.       Serial.println("SD1");
  65.       break;
  66.     case SD_CARD_TYPE_SD2:
  67.       Serial.println("SD2");
  68.       break;
  69.     case SD_CARD_TYPE_SDHC:
  70.       Serial.println("SDHC");
  71.       break;
  72.     default:
  73.       Serial.println("Unknown");
  74.   }
  75.  
  76.   // Now we will try to open the 'volume'/'partition' - it should be FAT16 or FAT32
  77.   if (!volume.init(card)) {
  78.     Serial.println("Could not find FAT16/FAT32 partition.\nMake sure you've formatted the card");
  79.     return;
  80.   }
  81.  
  82.  
  83.   // print the type and size of the first FAT-type volume
  84.   uint32_t volumesize;
  85.   Serial.print("\nVolume type is FAT");
  86.   Serial.println(volume.fatType(), DEC);
  87.   Serial.println();
  88.  
  89.   volumesize = volume.blocksPerCluster();    // clusters are collections of blocks
  90.   volumesize *= volume.clusterCount();       // we'll have a lot of clusters
  91.   volumesize *= 512;                            // SD card blocks are always 512 bytes
  92.   Serial.print("Volume size (bytes): ");
  93.   Serial.println(volumesize);
  94.   Serial.print("Volume size (Kbytes): ");
  95.   volumesize /= 1024;
  96.   Serial.println(volumesize);
  97.   Serial.print("Volume size (Mbytes): ");
  98.   volumesize /= 1024;
  99.   Serial.println(volumesize);
  100.  
  101.   Serial.println("\n File yang terdapat didalam kartu (nama, Tanggal dan ukuran (dalam bytes)): ");
  102.   root.openRoot(volume);
  103.  
  104.   // menampilkan file yang terdapat didalam kartu memori
  105.   root.ls(LS_R | LS_DATE | LS_SIZE);
  106. }
  107.  
  108.  
  109. void loop(void) {
  110.  
  111. }
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