SdSpiAltDriver Class Reference

Optimized SPI class for access to SD and SDHC flash memory cards. More...

#include <SdSpiDriver.h>

Public Member Functions
void	activate ()
void	begin (uint8_t csPin)
void	deactivate ()
uint8_t	receive ()
uint8_t	receive (uint8_t *buf, size_t n)
void	select ()
void	send (uint8_t data)
void	send (const uint8_t *buf, size_t n)
void	setPort (uint8_t portNumber)
void	setSpiSettings (SPISettings spiSettings)
void	unselect ()

Detailed Description

Optimized SPI class for access to SD and SDHC flash memory cards.

Member Function Documentation

void SdSpiAltDriver::activate

(

)

Activate SPI hardware.

void SdSpiAltDriver::begin

(

uint8_t

csPin

)

Initialize the SPI bus.

Parameters

[in]

csPin

SD card chip select pin.

void SdSpiAltDriver::deactivate

(

)

Deactivate SPI hardware.

uint8_t SdSpiAltDriver::receive

(

)

Receive a byte.

Returns

The byte.

uint8_t SdSpiAltDriver::receive	(	uint8_t *	buf,
		size_t	n
	)

Receive multiple bytes.

Parameters

[out]	buf	Buffer to receive the data.
[in]	n	Number of bytes to receive.

Returns

Zero for no error or nonzero error code.

void SdSpiAltDriver::select ( )

inline

Set CS low.

void SdSpiAltDriver::send

(

uint8_t

data

)

Send a byte.

Parameters

[in]

data

Byte to send

void SdSpiAltDriver::send	(	const uint8_t *	buf,
		size_t	n
	)

Send multiple bytes.

Parameters

[in]	buf	Buffer for data to be sent.
[in]	n	Number of bytes to send.

void SdSpiAltDriver::setPort

(

uint8_t

portNumber

)

Set SPI port number.

Parameters

[in]

portNumber

Hardware SPI port number.

void SdSpiAltDriver::setSpiSettings ( SPISettings  spiSettings )

inline

Save SPISettings.

Parameters

[in]

spiSettings

SPI speed, mode, and byte order.

void SdSpiAltDriver::unselect ( )

inline

Set CS high.

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

• Arduino/libraries/SdFat/src/SdSpiDriver.h