diff options
Diffstat (limited to 'libraries/SD/examples/CardInfo')
| -rw-r--r-- | libraries/SD/examples/CardInfo/CardInfo.pde | 111 | 
1 files changed, 111 insertions, 0 deletions
| diff --git a/libraries/SD/examples/CardInfo/CardInfo.pde b/libraries/SD/examples/CardInfo/CardInfo.pde new file mode 100644 index 0000000..7abfd33 --- /dev/null +++ b/libraries/SD/examples/CardInfo/CardInfo.pde @@ -0,0 +1,111 @@ +/* +  SD card test  +    + This example shows how use the utility libraries on which the' + SD library is based in order to get info about your SD card. + Very useful for testing a card when you're not sure whether its working or not. + 	 + The circuit: +  * SD card attached to SPI bus as follows: + ** MOSI - pin 11 on Arduino Uno/Duemilanove/Diecimila + ** MISO - pin 12 on Arduino Uno/Duemilanove/Diecimila + ** CLK - pin 13 on Arduino Uno/Duemilanove/Diecimila + ** CS - depends on your SD card shield or module.  + 		Pin 4 used here for consistency with other Arduino examples + +  + created  28 Mar 2011 + by Limor Fried  + modified 16 Mar 2011 + 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; +// Arduino Ethernet shield: pin 4 +// Adafruit SD shields and modules: pin 10 +// Sparkfun SD shield: pin 8 +const int chipSelect = 4;     + +void setup() +{ +  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 +  long 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) { +   +} | 
