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

#include <SdioCard.h>

Inheritance diagram for SdioCard:

Collaboration diagram for SdioCard:

Public Member Functions
bool	begin (SdioConfig sdioConfig)

bool	end ()

bool	erase (uint32_t firstSector, uint32_t lastSector)

uint8_t	errorCode () const

uint32_t	errorData () const

uint32_t	errorLine () const

bool	isBusy ()

uint32_t	kHzSdClk ()

bool	readCID (cid_t *cid)

bool	readCSD (csd_t *csd)

bool	readData (uint8_t *dst)

bool	readOCR (uint32_t *ocr)

bool	readSector (uint32_t sector, uint8_t *dst)

bool	readSectors (uint32_t sector, uint8_t *dst, size_t ns)

bool	readStart (uint32_t sector)

bool	readStart (uint32_t sector, uint32_t count)

bool	readStop ()

uint32_t	sectorCount ()

uint32_t	status ()

bool	syncDevice ()

uint8_t	type () const

bool	writeData (const uint8_t *src)

bool	writeSector (uint32_t sector, const uint8_t *src)

bool	writeSectors (uint32_t sector, const uint8_t *src, size_t ns)

bool	writeStart (uint32_t sector)

bool	writeStart (uint32_t sector, uint32_t count)

bool	writeStop ()

Detailed Description

Raw SDIO access to SD and SDHC flash memory cards.

Member Function Documentation

◆ begin()

bool SdioCard::begin ( SdioConfig sdioConfig )

Initialize the SD card.

Parameters

[in] sdioConfig SDIO card configuration.

Returns: true for success or false for failure.

◆ end()

bool SdioCard::end ( )

inline

Disable an SDIO card.

Returns: false - not implemented.

◆ erase()

bool SdioCard::erase	(	uint32_t	firstSector,
		uint32_t	lastSector
	)

virtual

Erase a range of sectors.

Parameters

[in]	firstSector	The address of the first sector in the range.
[in]	lastSector	The address of the last sector in the range.

Note: This function requests the SD card to do a flash erase for a range of sectors. The data on the card after an erase operation is either 0 or 1, depends on the card vendor. The card must support single sector erase.

Returns: true for success or false for failure.

Implements SdCardInterface.

◆ errorCode()

uint8_t SdioCard::errorCode ( ) const

virtual

Returns: code for the last error. See SdCardInfo.h for a list of error codes.

Implements SdCardInterface.

◆ errorData()

uint32_t SdioCard::errorData ( ) const

virtual

Returns: error data for last error.

Implements SdCardInterface.

◆ errorLine()

uint32_t SdioCard::errorLine ( ) const

Returns: error line for last error. Tmp function for debug.

◆ isBusy()

bool SdioCard::isBusy ( )

virtual

Check for busy with CMD13.

Returns: true if busy else false.

Implements SdCardInterface.

◆ kHzSdClk()

uint32_t SdioCard::kHzSdClk ( )

Returns: the SD clock frequency in kHz.

◆ readCID()

bool SdioCard::readCID ( cid_t * cid )

virtual

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.

Implements SdCardInterface.

◆ readCSD()

bool SdioCard::readCSD ( csd_t * csd )

virtual

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.

Implements SdCardInterface.

◆ readData()

bool SdioCard::readData ( uint8_t * dst )

Read one data sector in a multiple sector read sequence

Parameters

[out] dst Pointer to the location for the data to be read.

Returns: true for success or false for failure.

◆ readOCR()

bool SdioCard::readOCR ( uint32_t * ocr )

virtual

Read OCR register.

Parameters

[out] ocr Value of OCR register.

Returns: true for success or false for failure.

Implements SdCardInterface.

◆ readSector()

bool SdioCard::readSector	(	uint32_t	sector,
		uint8_t *	dst
	)

virtual

Read a 512 byte sector from an SD card.

Parameters

[in]	sector	Logical sector to be read.
[out]	dst	Pointer to the location that will receive the data.

Returns: true for success or false for failure.

Implements BlockDeviceInterface.

◆ readSectors()

bool SdioCard::readSectors	(	uint32_t	sector,
		uint8_t *	dst,
		size_t	ns
	)

virtual

Read multiple 512 byte sectors from an SD card.

Parameters

[in]	sector	Logical sector to be read.
[in]	ns	Number of sectors to be read.
[out]	dst	Pointer to the location that will receive the data.

Returns: true for success or false for failure.

Implements BlockDeviceInterface.

◆ readStart() [1/2]

bool SdioCard::readStart ( uint32_t sector )

Start a read multiple sectors sequence.

Parameters

[in] sector Address of first sector in sequence.

Note: This function is used with readData() and readStop() for optimized multiple sector reads. SPI chipSelect must be low for the entire sequence.

Returns: true for success or false for failure.

◆ readStart() [2/2]

bool SdioCard::readStart	(	uint32_t	sector,
		uint32_t	count
	)

Start a read multiple sectors sequence.

Parameters

[in]	sector	Address of first sector in sequence.
[in]	count	Maximum sector count.

Note: This function is used with readData() and readStop() for optimized multiple sector reads. SPI chipSelect must be low for the entire sequence.

Returns: true for success or false for failure.

◆ readStop()

bool SdioCard::readStop ( )

End a read multiple sectors sequence.

Returns: true for success or false for failure.

◆ sectorCount()

uint32_t SdioCard::sectorCount ( )

virtual

Determine the size of an SD flash memory card.

Returns: The number of 512 byte data sectors in the card or zero if an error occurs.

Implements SdCardInterface.

◆ status()

uint32_t SdioCard::status ( )

virtual

Returns: SDIO card status.

Reimplemented from SdCardInterface.

◆ syncDevice()

bool SdioCard::syncDevice ( )

virtual

Returns: success if sync successful. Not for user apps.

Implements BlockDeviceInterface.

◆ type()

uint8_t SdioCard::type ( ) const

virtual

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

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

Implements SdCardInterface.

◆ writeData()

bool SdioCard::writeData ( const uint8_t * src )

virtual

Write one data sector in a multiple sector write sequence.

Parameters

[in] src Pointer to the location of the data to be written.

Returns: true for success or false for failure.

Implements SdCardInterface.

◆ writeSector()

bool SdioCard::writeSector	(	uint32_t	sector,
		const uint8_t *	src
	)

virtual

Writes a 512 byte sector to an SD card.

Parameters

[in]	sector	Logical sector to be written.
[in]	src	Pointer to the location of the data to be written.

Returns: true for success or false for failure.

Implements BlockDeviceInterface.

◆ writeSectors()

bool SdioCard::writeSectors	(	uint32_t	sector,
		const uint8_t *	src,
		size_t	ns
	)

virtual

Write multiple 512 byte sectors to an SD card.

Parameters

[in]	sector	Logical sector to be written.
[in]	ns	Number of sectors to be written.
[in]	src	Pointer to the location of the data to be written.

Returns: true for success or false for failure.

Implements BlockDeviceInterface.

◆ writeStart() [1/2]

bool SdioCard::writeStart ( uint32_t sector )

virtual

Start a write multiple sectors sequence.

Parameters

[in] sector Address of first sector in sequence.

Note: This function is used with writeData() and writeStop() for optimized multiple sector writes.

Returns: true for success or false for failure.

Implements SdCardInterface.

◆ writeStart() [2/2]

bool SdioCard::writeStart	(	uint32_t	sector,
		uint32_t	count
	)

Start a write multiple sectors sequence.

Parameters

[in]	sector	Address of first sector in sequence.
[in]	count	Maximum sector count.

Note: This function is used with writeData() and writeStop() for optimized multiple sector writes.

Returns: true for success or false for failure.

◆ writeStop()

bool SdioCard::writeStop ( )

virtual

End a write multiple sectors sequence.

Returns: true for success or false for failure.

Implements SdCardInterface.

The documentation for this class was generated from the following file:

Arduino/libraries/SdFat/src/SdCard/SdioCard.h

Public Member Functions

Detailed Description

Member Function Documentation

◆ begin()

◆ end()

◆ erase()

◆ errorCode()

◆ errorData()

◆ errorLine()

◆ isBusy()

◆ kHzSdClk()

◆ readCID()

◆ readCSD()

◆ readData()

◆ readOCR()

◆ readSector()

◆ readSectors()

◆ readStart() [1/2]

◆ readStart() [2/2]

◆ readStop()

◆ sectorCount()

◆ status()

◆ syncDevice()

◆ type()

◆ writeData()

◆ writeSector()

◆ writeSectors()

◆ writeStart() [1/2]

◆ writeStart() [2/2]

◆ writeStop()