C++ SdVolume::blocksPerCluster方法代码示例

int App::run()
{
    if (!card.init(SPI_HALF_SPEED, 4))
    {
        Serial.puts("initialization failed. Things to check:\r\n");
        Serial.puts("* is a card is inserted?\r\n");
        Serial.puts("* Is your wiring correct?\r\n");
        Serial.puts("* did you change the chipSelect pin to match your shield or module?\r\n");
        return 0;
    }
    else
    {
        Serial.puts("Wiring is correct and a card is present.\r\n");
    }

    Serial.puts("\r\nCard type: ");
    switch(card.type())
    {
    case SD_CARD_TYPE_SD1:
        Serial.puts("SD1\r\n");
        break;
    case SD_CARD_TYPE_SD2:
        Serial.puts("SD2\r\n");
        break;
    case SD_CARD_TYPE_SDHC:
        Serial.puts("SDHC\r\n");
        break;
    default:
        Serial.puts("Unknown\r\n");
    }

    if (!volume.init(card))
    {
        Serial.puts("Could not find FAT16/FAT32 partition.\r\n");
        Serial.puts("Make sure you've formatted the card\r\n");
        return 0;
    }

    uint32_t volumesize;
    Serial.printf("\r\nVolume type is FAT%u\r\n", volume.fatType());
    volumesize = volume.blocksPerCluster();
    volumesize *= volume.clusterCount();
    volumesize *= 512;
    Serial.printf("Volume size (bytes): %u\r\n", volumesize);
    volumesize /= 1024;
    Serial.printf("Volume size (Kbytes): %u\r\n");
    volumesize /= 1024;
    Serial.printf("Volume size (Mbytes): %u\r\n");
    Serial.puts("\r\nFiles found on the card (name, date and size in bytes): \r\n");
    root.openRoot(volume);
    root.ls(LS_R | LS_DATE | LS_SIZE, 0, Serial);
    while (true) { }
    return 0;
}

bool FileSystem::initSDCard() {
    boolean status;

    if (root.isOpen())
        root.close();      // allows repeated calls

    // First, detect the card
    status = card.init(pinCS); // Audio shield has SD card SD on pin 10
    if (status) {
        Serial.println("SD card is connected :-)");
    } else {
        Serial.println("SD card is not connected or unusable :-(");
        sdCardInitialized = false;
        return sdCardInitialized;
    }

    // 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");
        sdCardInitialized = false;
        return sdCardInitialized;
    }

    root.openRoot(volume);

    // print the type and size of the first FAT-type volume
    Serial.print("\nVolume type is FAT");
    Serial.println(volume.fatType(), DEC);
    Serial.println();

    float size = volume.blocksPerCluster() * volume.clusterCount();
    size = size * (512.0 / 1e6); // convert blocks to millions of bytes
    Serial.print("File system space is ");
    Serial.print(size);
    Serial.println(" Mbytes.");

    status = SD.begin(pinCS); // Audio shield has SD card CS on pin 10
    if (status) {
        Serial.println("SD library is able to access the filesystem");
    } else {
        Serial.println("SD library can not access the filesystem!");
        Serial.println(
                "Please report this problem, with the make & model of your SD card.");
        Serial.println(
                "  http://forum.pjrc.com/forums/4-Suggestions-amp-Bug-Reports");
    }
    sdCardInitialized = true;
    return sdCardInitialized;
}

/**
* initialize
* Initialize Writter and SD Card behavior
* @return {void}
*/
bool SDWriter::initialize()
{
	Sd2Card card;
	card.init(SPI_HALF_SPEED, pin);

	SdVolume volume;
  	volume.init(card);
  
  	volumesize = volume.blocksPerCluster() * volume.clusterCount() * 512;

	if (!SD.begin(pin))
		state = false;
	else
		state = true;

	return state;
}

// ----------------------------------------------------------------------------
//	Scan the SD card and open the volume
//	Set reg[STATUS] to FDC_ST_NOTREADY if no card present
// ----------------------------------------------------------------------------
void scanSD()
{
	if (!card.init(SPI_FULL_SPEED, SD_CHIP_SELECT_PIN))
	{
		Serial.print("Init failed, error:");
		Serial.println(card.errorCode());
		mb8877.reg[STATUS] = FDC_ST_NOTREADY;
		return;
	}

#ifdef SD_DEBUG
	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");
	}
#endif

	if (!volume.init(card)) {
#ifdef SD_DEBUG
		Serial.println("Could not find FAT16/FAT32 partition.\nMake sure you've formatted the card");
#endif
		mb8877.reg[STATUS] = FDC_ST_NOTREADY;
		return;
	}

#ifdef SD_DEBUG
	// ----- Print the type and size of the first FAT-type volume
	Serial.print("\nVolume type is FAT");
	Serial.println(volume.fatType(), DEC);
	Serial.println();

	long volumesize;
	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);
#endif
	root.openRoot(volume);
	mb8877.reg[STATUS]=0x00;
}

void printCardInfo() {
    Serial.print(F("Data logging is "));
    if (disableLogging) {
        Serial.println(F("DISABLED"));
    } else {
        Serial.println(F("ENABLED"));
    }
    Serial.println();

    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");
    }

    Serial.print("\nVolume type is FAT");
    Serial.println(volume.fatType(), DEC);

    unsigned long volumesize;
    volumesize = volume.blocksPerCluster();
    volumesize *= volume.clusterCount();
    volumesize /= 2;
    volumesize /= 1024;
    Serial.print("Volume size: ");
    Serial.print(volumesize, DEC);
    Serial.println("MB");

    Serial.println("name\tdate\tsize");
    root.ls(LS_R | LS_DATE | LS_SIZE);
    Serial.println();
}

void setup()
{
  Serial.begin(BPS_115200);
  PgmPrintln("Type any character to start");
  while (!Serial.available());

  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);
}

int infoSDCard(void){
    	
   	Serial.print("SD-Card type is ");
   	switch(card.type()){
    	    case SD_CARD_TYPE_SD1:
      		    Serial.print("SD1");
      			break;
    		case SD_CARD_TYPE_SD2:
      			Serial.print("SD2");
      	    	break;
    		case SD_CARD_TYPE_SDHC:
      			Serial.print("SDHC");
      			break;
    		default:
      		    Serial.println("Unknown");
	}

	cid_t cid;
	if (!card.readCID(&cid))
	{
		Serial.print("\nError Open read CID of SD-Card");
		return SDCARD_ERROR;
	}  	  	

	Serial.print("\nManufacturer ID: ");
	Serial.print(cid.mid, HEX);

	Serial.print("\nOEM/Application ID: ");
	Serial.print(cid.oid[0]);
	Serial.print(cid.oid[1]);
  
	Serial.print("\nProduct name: ");
	for (uint8_t i = 0; i < 5; i++) {
			Serial.print(cid.pnm[i]);
	}
 
	Serial.print("\nProduct revision: ");
	Serial.print(cid.prv_m, DEC);
	Serial.print(".");
	Serial.print(cid.prv_n, DEC);

	Serial.print("\nProduct serial number: ");
	Serial.print(cid.psn);
 
	Serial.print("\nManufacturing date: ");
	Serial.print(cid.mdt_month);
	Serial.print('/');
	Serial.print(2000 + (10*cid.mdt_year_high) + cid.mdt_year_low);

	// print the type and size of the first FAT-type volume
	Serial.print("\nVolume type is FAT");
	Serial.print(volume.fatType(), DEC);
				  				
	uint32_t volumesize, volume_free;
	volumesize = volume.blocksPerCluster();    // clusters are collections of blocks
	volume_free = volume.blocksPerCluster();  
	Serial.print("\nNb blocks per cluster: ");
	Serial.print(volumesize);
	volumesize *= volume.clusterCount();       // we'll have a lot of clusters
    volume_free *= volume.freeClusterCount();
	Serial.print("\nClusters count: ");
	Serial.print(volume.clusterCount());  
	volumesize *= 512;
	volume_free *= 512;
	Serial.print("\nBlock size: 512");        // SD card blocks are always 512 bytes
	Serial.print("\nVolume size (bytes): ");
	Serial.print(volumesize);
	Serial.print(" / Volume free (bytes): ");
	Serial.print(volume_free);	
	Serial.print(" / % free: ");
	Serial.print(100.0*(double)(volume_free)/(double)(volumesize));			
	Serial.print("\nVolume size (Kbytes): ");
	volumesize /= 1024;
	Serial.print(volumesize);
	Serial.print(" / Volume free (Kbytes): ");
	volume_free /= 1024;
	Serial.print(volume_free);				
	Serial.print("\nVolume size (Mbytes): ");
	volumesize /= 1024;
	Serial.print(volumesize);
	Serial.print(" / Volume free (Mbytes): ");
	volume_free /= 1024;
	Serial.print(volume_free);
			
	// list all files in the card with date and size			    
    Serial.println("\nFiles found on the card (name, date and size in bytes): ");
	uint16_t n = root.ls(LS_R | LS_DATE | LS_SIZE);
	Serial.println("");
	Serial.print(n); Serial.println(" files found");
	Serial.println("");
				
    return n;		
}

void setup()
{
  Serial.begin(115200);
  while (!Serial.available());

  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!
  // Initialize HARDWARE SPI with user defined chipSelect
  if (!card.init(SPI_HALF_SPEED, chipSelect)) {

  // Initialize SOFTWARE SPI (uncomment and comment out above line to use)
//  if (!card.init(mosiPin, misoPin, clockPin, 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);
}