diff --git a/libraries/SPI/examples/SDcard_readInfo/SDcard_readInfo.ino b/libraries/SPI/examples/SDcard_readInfo/SDcard_readInfo.ino new file mode 100644 index 0000000..67582f5 --- /dev/null +++ b/libraries/SPI/examples/SDcard_readInfo/SDcard_readInfo.ino @@ -0,0 +1,96 @@ + +/* + An SD card connected via SPI is used for this test. + The example is taken from the arduino SD library. + + https://github.com/arduino-libraries/SD +*/ + +#include +#include + +// set up variables using the SD utility library functions: +Sd2Card card; +SdVolume volume; +SdFile root; + +const int chipSelect = 9; + +void setup() { + // Open serial communications and wait for port to open: + Serial.begin(9600); + while (!Serial) { + ; // wait for serial port to connect. Needed for native USB port only + } + + Serial.print("\nInitializing SD card..."); + + // we'll use the initialization code from the utility libraries + // since we're just testing if the card is working! + if (!card.init(SPI_QUARTER_SPEED, chipSelect)) { + Serial.println("initialization failed. Things to check:"); + Serial.println("* is a card inserted?"); + Serial.println("* is your wiring correct?"); + Serial.println("* did you change the chipSelect pin to match your shield or module?"); + while (1); + } else { + Serial.println("Wiring is correct and a card is present."); + } + + // print the type of card + Serial.println(); + Serial.print("Card 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"); + while (1); + } + + Serial.print("Clusters: "); + Serial.println(volume.clusterCount()); + Serial.print("Blocks x Cluster: "); + Serial.println(volume.blocksPerCluster()); + + Serial.print("Total Blocks: "); + Serial.println(volume.blocksPerCluster() * volume.clusterCount()); + Serial.println(); + + // print the type and size of the first FAT-type volume + uint32_t volumesize; + Serial.print("Volume type is: FAT"); + Serial.println(volume.fatType(), DEC); + + volumesize = volume.blocksPerCluster(); // clusters are collections of blocks + volumesize *= volume.clusterCount(); // we'll have a lot of clusters + volumesize /= 2; // SD card blocks are always 512 bytes (2 blocks are 1KB) + Serial.print("Volume size (Kb): "); + Serial.println(volumesize); + Serial.print("Volume size (Mb): "); + volumesize /= 1024; + Serial.println(volumesize); + Serial.print("Volume size (Gb): "); + Serial.println((float)volumesize / 1024.0); + + 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) { +}