Sd2Card Class Reference

Raw access to SD and SDHC flash memory cards. More...

#include <Sd2Card.h>

Public Member Functions
	Sd2Card ()
uint32_t	cardSize ()
bool	erase (uint32_t firstBlock, uint32_t lastBlock)
bool	eraseSingleBlockEnable ()
void	error (const uint8_t code)
int	errorCode () const
int	errorData () const
bool	init (const uint8_t sckRateID, const pin_t chipSelectPin)
bool	readBlock (uint32_t block, uint8_t *dst)
bool	readCID (cid_t *cid)
bool	readCSD (csd_t *csd)
bool	readData (uint8_t *dst)
bool	readStart (uint32_t blockNumber)
bool	readStop ()
bool	setSckRate (const uint8_t sckRateID)
int	type () const
bool	writeBlock (uint32_t blockNumber, const uint8_t *src)
bool	writeData (const uint8_t *src)
bool	writeStart (uint32_t blockNumber, const uint32_t eraseCount)
bool	writeStop ()
bool	init (const uint8_t sckRateID=0, const pin_t chipSelectPin=SD_CHIP_SELECT_PIN)
bool	readStart (const uint32_t block)
bool	readData (uint8_t *dst)
bool	readStop () const
bool	writeStart (const uint32_t block, const uint32_t)
bool	writeData (uint8_t *src)
bool	writeStop () const
bool	readBlock (uint32_t block, uint8_t *dst)
bool	writeBlock (uint32_t blockNumber, const uint8_t *src)
uint32_t	cardSize ()

Static Public Member Functions
static bool	usbStartup ()
static void	idle ()
static bool	isInserted ()
static bool	ready ()

Detailed Description

Raw access to SD and SDHC flash memory cards.

define SOFTWARE_SPI to use bit-bang SPI

Constructor & Destructor Documentation

Sd2Card()

Sd2Card::Sd2Card

(

)

: errorCode_(SD_CARD_ERROR_INIT_NOT_CALLED), type_(0) {}

Member Function Documentation

cardSize() [1/2]

uint32_t Sd2Card::cardSize

(

)

erase()

bool Sd2Card::erase	(	uint32_t	firstBlock,
		uint32_t	lastBlock
	)

eraseSingleBlockEnable()

bool Sd2Card::eraseSingleBlockEnable

(

)

error()

void Sd2Card::error

(

const uint8_t

code

)

Set SD error code.

Parameters

[in]

code

value for error code.

{ errorCode_ = code; }

errorCode()

int Sd2Card::errorCode

(

)

const

Returns

error code for last error. See Sd2Card.h for a list of error codes.

{ return errorCode_; }

errorData()

int Sd2Card::errorData

(

)

const

Returns

error data for last error.

{ return status_; }

init() [1/2]

bool Sd2Card::init	(	const uint8_t	sckRateID,
		const pin_t	chipSelectPin
	)

Initialize an SD flash memory card with default clock rate and chip select pin. See sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin).

Returns

true for success or false for failure.

readBlock() [1/2]

bool Sd2Card::readBlock	(	uint32_t	block,
		uint8_t *	dst
	)

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readCID()

bool Sd2Card::readCID

(

cid_t *

cid

)

Read a card's CID register. The CID contains card identification information such as Manufacturer ID, Product name, Product serial number and Manufacturing date.

Parameters

[out]

cid

pointer to area for returned data.

Returns

true for success or false for failure.

{ return readRegister(CMD10, cid); }

readCSD()

bool Sd2Card::readCSD

(

csd_t *

csd

)

Read a card's CSD register. The CSD contains Card-Specific Data that provides information regarding access to the card's contents.

Parameters

[out]

csd

pointer to area for returned data.

Returns

true for success or false for failure.

{ return readRegister(CMD9, csd); }

readData() [1/2]

bool Sd2Card::readData

(

uint8_t *

dst

)

readStart() [1/2]

bool Sd2Card::readStart

(

uint32_t

blockNumber

)

readStop() [1/2]

bool Sd2Card::readStop

(

)

setSckRate()

bool Sd2Card::setSckRate

(

const uint8_t

sckRateID

)

type()

int Sd2Card::type

(

)

const

Return the card type: SD V1, SD V2 or SDHC

Returns

0 - SD V1, 1 - SD V2, or 3 - SDHC.

{return type_;}

writeBlock() [1/2]

bool Sd2Card::writeBlock	(	uint32_t	blockNumber,
		const uint8_t *	src
	)

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writeData() [1/2]

bool Sd2Card::writeData

(

const uint8_t *

src

)

writeStart() [1/2]

bool Sd2Card::writeStart	(	uint32_t	blockNumber,
		const uint32_t	eraseCount
	)

writeStop() [1/2]

bool Sd2Card::writeStop

(

)

usbStartup()

static bool Sd2Card::usbStartup ( )

static

init() [2/2]

bool Sd2Card::init	(	const uint8_t	sckRateID = 0,
		const pin_t	chipSelectPin = SD_CHIP_SELECT_PIN
	)

idle()

void Sd2Card::idle ( )

static

                   {
}

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readStart() [2/2]

bool Sd2Card::readStart

(

const uint32_t

block

)

{ pos = block; return ready(); }

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readData() [2/2]

bool Sd2Card::readData

(

uint8_t *

dst

)

{ return readBlock(pos++, dst); }

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readStop() [2/2]

bool Sd2Card::readStop

(

)

const

{ return true; }

writeStart() [2/2]

bool Sd2Card::writeStart	(	const uint32_t	block,
		const uint32_t
	)

{ pos = block; return ready(); }

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writeData() [2/2]

bool Sd2Card::writeData

(

uint8_t *

src

)

{ return writeBlock(pos++, src); }

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writeStop() [2/2]

bool Sd2Card::writeStop

(

)

const

{ return true; }

readBlock() [2/2]

bool Sd2Card::readBlock	(	uint32_t	block,
		uint8_t *	dst
	)

writeBlock() [2/2]

bool Sd2Card::writeBlock	(	uint32_t	blockNumber,
		const uint8_t *	src
	)

cardSize() [2/2]

uint32_t Sd2Card::cardSize

(

)

isInserted()

bool Sd2Card::isInserted ( )

static

                         {
    return media_is_inserted();
}

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ready()

static bool Sd2Card::ready ( )

static

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