Generic SD Card Driver. More...

Detailed Description

Generic SD Card Driver.

This module implements a generic SDC (Secure Digital Card) driver.

Precondition: In order to use the SDC driver the HAL_USE_SDC option must be enabled in halconf.h.

Driver State Machine

This driver implements a state machine internally, see the Abstract I/O Block Device module documentation for details.

Driver Operations

This driver allows to read or write single or multiple 512 bytes blocks on a SD Card.

Collaboration diagram for SDC Driver:

SD card types
#define	SDC_MODE_CARDTYPE_MASK 0xFU
#define	SDC_MODE_CARDTYPE_SDV11 0U
#define	SDC_MODE_CARDTYPE_SDV20 1U
#define	SDC_MODE_CARDTYPE_MMC 2U
#define	SDC_MODE_HIGH_CAPACITY 0x10U

SDC bus error conditions
#define	SDC_NO_ERROR 0U
#define	SDC_CMD_CRC_ERROR 1U
#define	SDC_DATA_CRC_ERROR 2U
#define	SDC_DATA_TIMEOUT 4U
#define	SDC_COMMAND_TIMEOUT 8U
#define	SDC_TX_UNDERRUN 16U
#define	SDC_RX_OVERRUN 32U
#define	SDC_STARTBIT_ERROR 64U
#define	SDC_OVERFLOW_ERROR 128U
#define	SDC_UNHANDLED_ERROR 0xFFFFFFFFU

SDC configuration options
#define	SDC_INIT_RETRY 100
	Number of initialization attempts before rejecting the card.
#define	SDC_MMC_SUPPORT FALSE
	Include support for MMC cards.
#define	SDC_NICE_WAITING TRUE
	Delays insertions.
#define	SDC_INIT_OCR_V20 0x50FF8000U
	OCR initialization constant for V20 cards.
#define	SDC_INIT_OCR 0x80100000U
	OCR initialization constant for non-V20 cards.

Macro Functions
#define	sdcIsCardInserted(sdcp)
	Returns the card insertion status.
#define	sdcIsWriteProtected(sdcp)
	Returns the write protect status.

PLATFORM configuration options
#define	PLATFORM_SDC_USE_SDC1 FALSE
	PWMD1 driver enable switch.

Data Structures
struct	SDCConfig
	Driver configuration structure. More...
struct	SDCDriverVMT
	`SDCDriver` virtual methods table. More...
struct	SDCDriver
	Structure representing an SDC driver. More...

Macros
#define	_sdc_driver_methods _mmcsd_block_device_methods
	`SDCDriver` specific methods.

Typedefs
typedef uint32_t	sdcmode_t
	Type of card flags.
typedef uint32_t	sdcflags_t
	SDC Driver condition flags type.
typedef struct SDCDriver	SDCDriver
	Type of a structure representing an SDC driver.

Enumerations
enum	mmc_switch_t { MMC_SWITCH_COMMAND_SET = 0 , MMC_SWITCH_SET_BITS = 1 , MMC_SWITCH_CLEAR_BITS = 2 , MMC_SWITCH_WRITE_BYTE = 3 }
	MMC switch mode. More...
enum	sd_switch_t { SD_SWITCH_CHECK = 0 , SD_SWITCH_SET = 1 }
	SDC switch mode. More...
enum	sd_switch_function_t { SD_SWITCH_FUNCTION_SPEED = 0 , SD_SWITCH_FUNCTION_CMD_SYSTEM = 1 , SD_SWITCH_FUNCTION_DRIVER_STRENGTH = 2 , SD_SWITCH_FUNCTION_CURRENT_LIMIT = 3 }
	SDC switch function. More...
enum	sdcbusmode_t { SDC_MODE_1BIT = 0 , SDC_MODE_4BIT , SDC_MODE_8BIT }
	Type of SDIO bus mode. More...
enum	sdcbusclk_t { SDC_CLK_25MHz = 0 , SDC_CLK_50MHz }
	Max supported clock. More...

Functions
static bool	mode_detect (SDCDriver *sdcp)
	Detects card mode.
static bool	mmc_init (SDCDriver *sdcp)
	Init procedure for MMC.
static bool	sdc_init (SDCDriver *sdcp)
	Init procedure for SDC.
static uint32_t	mmc_cmd6_construct (mmc_switch_t access, uint32_t idx, uint32_t value, uint32_t cmd_set)
	Constructs CMD6 argument for MMC.
static uint32_t	sdc_cmd6_construct (sd_switch_t mode, sd_switch_function_t function, uint32_t value)
	Constructs CMD6 argument for SDC.
static uint16_t	sdc_cmd6_extract_info (sd_switch_function_t function, const uint8_t *buf)
	Extracts information from CMD6 answer.
static bool	sdc_cmd6_check_status (sd_switch_function_t function, const uint8_t *buf)
	Checks status after switching using CMD6.
static bool	sdc_detect_bus_clk (SDCDriver sdcp, sdcbusclk_t clk)
	Reads supported bus clock and switch SDC to appropriate mode.
static bool	mmc_detect_bus_clk (SDCDriver sdcp, sdcbusclk_t clk)
	Reads supported bus clock and switch MMC to appropriate mode.
static bool	detect_bus_clk (SDCDriver sdcp, sdcbusclk_t clk)
	Reads supported bus clock and switch card to appropriate mode.
static bool	sdc_set_bus_width (SDCDriver *sdcp)
	Sets bus width for SDC.
static bool	mmc_set_bus_width (SDCDriver *sdcp)
	Sets bus width for MMC.
static bool	_sdc_wait_for_transfer_state_internal (SDCDriver *sdcp, bool crc_check)
	Wait for the card to complete pending operations.
bool	_sdc_wait_for_transfer_state (SDCDriver *sdcp)
	Wait for the card to complete pending operations with CRC check.
bool	_sdc_wait_for_transfer_state_nocrc (SDCDriver *sdcp)
	Wait for the card to complete pending operations without CRC check.
void	sdcInit (void)
	SDC Driver initialization.
void	sdcObjectInit (SDCDriver *sdcp)
	Initializes the standard part of a `SDCDriver` structure.
msg_t	sdcStart (SDCDriver sdcp, const SDCConfig config)
	Configures and activates the SDC peripheral.
void	sdcStop (SDCDriver *sdcp)
	Deactivates the SDC peripheral.
bool	sdcConnect (SDCDriver *sdcp)
	Performs the initialization procedure on the inserted card.
bool	sdcDisconnect (SDCDriver *sdcp)
	Brings the driver in a state safe for card removal.
bool	sdcRead (SDCDriver sdcp, uint32_t startblk, uint8_t buf, uint32_t n)
	Reads one or more blocks.
bool	sdcWrite (SDCDriver sdcp, uint32_t startblk, const uint8_t buf, uint32_t n)
	Writes one or more blocks.
sdcflags_t	sdcGetAndClearErrors (SDCDriver *sdcp)
	Returns the errors mask associated to the previous operation.
bool	sdcSync (SDCDriver *sdcp)
	Waits for card idle condition.
bool	sdcGetInfo (SDCDriver sdcp, BlockDeviceInfo bdip)
	Returns the media info.
bool	sdcErase (SDCDriver *sdcp, uint32_t startblk, uint32_t endblk)
	Erases the supplied blocks.
void	sdc_lld_init (void)
	Low level SDC driver initialization.
void	sdc_lld_start (SDCDriver *sdcp)
	Configures and activates the SDC peripheral.
void	sdc_lld_stop (SDCDriver *sdcp)
	Deactivates the SDC peripheral.
void	sdc_lld_start_clk (SDCDriver *sdcp)
	Starts the SDIO clock and sets it to init mode (400kHz or less).
void	sdc_lld_set_data_clk (SDCDriver *sdcp, sdcbusclk_t clk)
	Sets the SDIO clock to data mode (25MHz or less).
void	sdc_lld_stop_clk (SDCDriver *sdcp)
	Stops the SDIO clock.
void	sdc_lld_set_bus_mode (SDCDriver *sdcp, sdcbusmode_t mode)
	Switches the bus to 4 bits mode.
void	sdc_lld_send_cmd_none (SDCDriver *sdcp, uint8_t cmd, uint32_t arg)
	Sends an SDIO command with no response expected.
bool	sdc_lld_send_cmd_short (SDCDriver sdcp, uint8_t cmd, uint32_t arg, uint32_t resp)
	Sends an SDIO command with a short response expected.
bool	sdc_lld_send_cmd_short_crc (SDCDriver sdcp, uint8_t cmd, uint32_t arg, uint32_t resp)
	Sends an SDIO command with a short response expected and CRC.
bool	sdc_lld_send_cmd_long_crc (SDCDriver sdcp, uint8_t cmd, uint32_t arg, uint32_t resp)
	Sends an SDIO command with a long response expected and CRC.
bool	sdc_lld_read (SDCDriver sdcp, uint32_t startblk, uint8_t buf, uint32_t n)
	Reads one or more blocks.
bool	sdc_lld_write (SDCDriver sdcp, uint32_t startblk, const uint8_t buf, uint32_t n)
	Writes one or more blocks.
bool	sdc_lld_sync (SDCDriver *sdcp)
	Waits for card idle condition.
bool	sdc_lld_read_special (SDCDriver sdcp, uint8_t buf, size_t bytes, uint8_t cmd, uint32_t argument)
bool	sdc_lld_is_card_inserted (SDCDriver *sdcp)
bool	sdc_lld_is_write_protected (SDCDriver *sdcp)

Variables
static const struct SDCDriverVMT	sdc_vmt
	Virtual methods table.
SDCDriver	SDCD1
	SDCD1 driver identifier.

Macro Definition Documentation

◆ SDC_MODE_CARDTYPE_MASK

#define SDC_MODE_CARDTYPE_MASK 0xFU

Definition at line 38 of file hal_sdc.h.

Referenced by detect_bus_clk(), sdc_init(), and sdcConnect().

◆ SDC_MODE_CARDTYPE_SDV11

#define SDC_MODE_CARDTYPE_SDV11 0U

Definition at line 39 of file hal_sdc.h.

Referenced by mode_detect(), and sdcConnect().

◆ SDC_MODE_CARDTYPE_SDV20

#define SDC_MODE_CARDTYPE_SDV20 1U

Definition at line 40 of file hal_sdc.h.

Referenced by mode_detect(), sdc_init(), and sdcConnect().

◆ SDC_MODE_CARDTYPE_MMC

#define SDC_MODE_CARDTYPE_MMC 2U

Definition at line 41 of file hal_sdc.h.

Referenced by detect_bus_clk(), mode_detect(), and sdcConnect().

◆ SDC_MODE_HIGH_CAPACITY

#define SDC_MODE_HIGH_CAPACITY 0x10U

Definition at line 42 of file hal_sdc.h.

Referenced by mmc_init(), sdc_init(), and sdcErase().

◆ SDC_NO_ERROR

#define SDC_NO_ERROR 0U

Definition at line 49 of file hal_sdc.h.

Referenced by sdcGetAndClearErrors(), and sdcObjectInit().

◆ SDC_CMD_CRC_ERROR

#define SDC_CMD_CRC_ERROR 1U

Definition at line 50 of file hal_sdc.h.

◆ SDC_DATA_CRC_ERROR

#define SDC_DATA_CRC_ERROR 2U

Definition at line 51 of file hal_sdc.h.

◆ SDC_DATA_TIMEOUT

#define SDC_DATA_TIMEOUT 4U

Definition at line 52 of file hal_sdc.h.

◆ SDC_COMMAND_TIMEOUT

#define SDC_COMMAND_TIMEOUT 8U

Definition at line 53 of file hal_sdc.h.

◆ SDC_TX_UNDERRUN

#define SDC_TX_UNDERRUN 16U

Definition at line 54 of file hal_sdc.h.

◆ SDC_RX_OVERRUN

#define SDC_RX_OVERRUN 32U

Definition at line 55 of file hal_sdc.h.

◆ SDC_STARTBIT_ERROR

#define SDC_STARTBIT_ERROR 64U

Definition at line 56 of file hal_sdc.h.

◆ SDC_OVERFLOW_ERROR

#define SDC_OVERFLOW_ERROR 128U

Definition at line 57 of file hal_sdc.h.

Referenced by sdcRead(), and sdcWrite().

◆ SDC_UNHANDLED_ERROR

#define SDC_UNHANDLED_ERROR 0xFFFFFFFFU

Definition at line 58 of file hal_sdc.h.

◆ SDC_INIT_RETRY

#define SDC_INIT_RETRY 100

Number of initialization attempts before rejecting the card.

Note: Attempts are performed at 10mS intervals.

Definition at line 74 of file hal_sdc.h.

Referenced by mmc_init(), and sdc_init().

◆ SDC_MMC_SUPPORT

#define SDC_MMC_SUPPORT FALSE

Include support for MMC cards.

Note: MMC support is not yet implemented so this option must be kept at FALSE.

Definition at line 83 of file hal_sdc.h.

◆ SDC_NICE_WAITING

#define SDC_NICE_WAITING TRUE

Delays insertions.

If enabled this options inserts delays into the MMC waiting routines releasing some extra CPU time for the threads with lower priority, this may slow down the driver a bit however.

Definition at line 93 of file hal_sdc.h.

◆ SDC_INIT_OCR_V20

#define SDC_INIT_OCR_V20 0x50FF8000U

OCR initialization constant for V20 cards.

Definition at line 100 of file hal_sdc.h.

Referenced by sdc_init().

◆ SDC_INIT_OCR

#define SDC_INIT_OCR 0x80100000U

OCR initialization constant for non-V20 cards.

Definition at line 107 of file hal_sdc.h.

Referenced by sdc_init().

◆ sdcIsCardInserted

#define sdcIsCardInserted ( sdcp )

Value:

(sdc_lld_is_card_inserted(sdcp))

sdc_lld_is_card_inserted

bool sdc_lld_is_card_inserted(SDCDriver *sdcp)

Returns the card insertion status.

Note: This macro wraps a low level function named sdc_lld_is_card_inserted(), this function must be provided by the application because it is not part of the SDC driver.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The card state.

Return values

false	card not inserted.
true	card inserted.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 160 of file hal_sdc.h.

◆ sdcIsWriteProtected

#define sdcIsWriteProtected ( sdcp )

Value:

(sdc_lld_is_write_protected(sdcp))

sdc_lld_is_write_protected

bool sdc_lld_is_write_protected(SDCDriver *sdcp)

Returns the write protect status.

Note: This macro wraps a low level function named sdc_lld_is_write_protected(), this function must be provided by the application because it is not part of the SDC driver.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The card state.

Return values

false	not write protected.
true	write protected.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 176 of file hal_sdc.h.

◆ PLATFORM_SDC_USE_SDC1

#define PLATFORM_SDC_USE_SDC1 FALSE

PWMD1 driver enable switch.

If set to TRUE the support for PWM1 is included.

Note: The default is FALSE.

Definition at line 48 of file hal_sdc_lld.h.

◆ _sdc_driver_methods

#define _sdc_driver_methods _mmcsd_block_device_methods

SDCDriver specific methods.

Definition at line 90 of file hal_sdc_lld.h.

Typedef Documentation

◆ sdcmode_t

typedef uint32_t sdcmode_t

Type of card flags.

Definition at line 63 of file hal_sdc_lld.h.

◆ sdcflags_t

typedef uint32_t sdcflags_t

SDC Driver condition flags type.

Definition at line 68 of file hal_sdc_lld.h.

◆ SDCDriver

typedef struct SDCDriver SDCDriver

Type of a structure representing an SDC driver.

Definition at line 73 of file hal_sdc_lld.h.

Enumeration Type Documentation

◆ mmc_switch_t

enum mmc_switch_t

MMC switch mode.

Enumerator
MMC_SWITCH_COMMAND_SET
MMC_SWITCH_SET_BITS
MMC_SWITCH_CLEAR_BITS
MMC_SWITCH_WRITE_BYTE

Definition at line 38 of file hal_sdc.c.

◆ sd_switch_t

enum sd_switch_t

SDC switch mode.

Enumerator
SD_SWITCH_CHECK
SD_SWITCH_SET

Definition at line 48 of file hal_sdc.c.

◆ sd_switch_function_t

enum sd_switch_function_t

SDC switch function.

Enumerator
SD_SWITCH_FUNCTION_SPEED
SD_SWITCH_FUNCTION_CMD_SYSTEM
SD_SWITCH_FUNCTION_DRIVER_STRENGTH
SD_SWITCH_FUNCTION_CURRENT_LIMIT

Definition at line 56 of file hal_sdc.c.

◆ sdcbusmode_t

enum sdcbusmode_t

Type of SDIO bus mode.

Enumerator
SDC_MODE_1BIT
SDC_MODE_4BIT
SDC_MODE_8BIT

Definition at line 122 of file hal_sdc.h.

◆ sdcbusclk_t

enum sdcbusclk_t

Max supported clock.

Enumerator
SDC_CLK_25MHz
SDC_CLK_50MHz

Definition at line 131 of file hal_sdc.h.

Function Documentation

◆ mode_detect()

bool mode_detect ( SDCDriver * sdcp )

static

Detects card mode.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 100 of file hal_sdc.c.

References SDCDriver::cardmode, HAL_FAILED, HAL_SUCCESS, MMCSD_CMD8_PATTERN, MMCSD_CMD_APP_CMD, MMCSD_CMD_GO_IDLE_STATE, MMCSD_CMD_SEND_IF_COND, MMCSD_R1_ERROR, sdc_lld_send_cmd_none(), sdc_lld_send_cmd_short_crc(), SDC_MODE_CARDTYPE_MMC, SDC_MODE_CARDTYPE_SDV11, and SDC_MODE_CARDTYPE_SDV20.

Referenced by sdcConnect().

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◆ mmc_init()

bool mmc_init ( SDCDriver * sdcp )

static

Init procedure for MMC.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 144 of file hal_sdc.c.

References SDCDriver::cardmode, HAL_FAILED, HAL_SUCCESS, MMCSD_CMD_INIT, osalThreadSleepMilliseconds, SDC_INIT_RETRY, sdc_lld_send_cmd_short(), and SDC_MODE_HIGH_CAPACITY.

Referenced by sdcConnect().

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◆ sdc_init()

bool sdc_init ( SDCDriver * sdcp )

static

Init procedure for SDC.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 181 of file hal_sdc.c.

References SDCDriver::cardmode, HAL_FAILED, HAL_SUCCESS, MMCSD_CMD_APP_CMD, MMCSD_CMD_APP_OP_COND, MMCSD_R1_ERROR, osalThreadSleepMilliseconds, SDC_INIT_OCR, SDC_INIT_OCR_V20, SDC_INIT_RETRY, sdc_lld_send_cmd_short(), sdc_lld_send_cmd_short_crc(), SDC_MODE_CARDTYPE_MASK, SDC_MODE_CARDTYPE_SDV20, and SDC_MODE_HIGH_CAPACITY.

Referenced by sdcConnect().

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◆ mmc_cmd6_construct()

uint32_t mmc_cmd6_construct	(	mmc_switch_t	access,
		uint32_t	idx,
		uint32_t	value,
		uint32_t	cmd_set )

static

Constructs CMD6 argument for MMC.

Parameters

[in]	access	EXT_CSD access mode
[in]	idx	EXT_CSD byte number
[in]	value	value to be written in target field
[in]	cmd_set	switch current command set

Returns: CMD6 argument.

Function Class:: Not an API, this function is for internal use only.

Definition at line 229 of file hal_sdc.c.

References osalDbgAssert.

Referenced by mmc_detect_bus_clk(), and mmc_set_bus_width().

◆ sdc_cmd6_construct()

uint32_t sdc_cmd6_construct	(	sd_switch_t	mode,
		sd_switch_function_t	function,
		uint32_t	value )

static

Constructs CMD6 argument for SDC.

Parameters

[in]	mode	switch/test mode
[in]	function	function number to be switched
[in]	value	value to be written in target function

Returns: CMD6 argument.

Function Class:: Not an API, this function is for internal use only.

Definition at line 249 of file hal_sdc.c.

References osalDbgAssert.

Referenced by sdc_detect_bus_clk().

◆ sdc_cmd6_extract_info()

uint16_t sdc_cmd6_extract_info	(	sd_switch_function_t	function,
		const uint8_t *	buf )

static

Extracts information from CMD6 answer.

Parameters

[in]	function	function number to be switched
[in]	buf	buffer with answer

Returns: extracted answer.

Function Class:: Not an API, this function is for internal use only.

Definition at line 271 of file hal_sdc.c.

Referenced by sdc_detect_bus_clk().

◆ sdc_cmd6_check_status()

bool sdc_cmd6_check_status	(	sd_switch_function_t	function,
		const uint8_t *	buf )

static

Checks status after switching using CMD6.

Parameters

[in]	function	function number to be switched
[in]	buf	buffer with answer

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 291 of file hal_sdc.c.

References HAL_FAILED, and HAL_SUCCESS.

Referenced by sdc_detect_bus_clk().

◆ sdc_detect_bus_clk()

bool sdc_detect_bus_clk	(	SDCDriver *	sdcp,
		sdcbusclk_t *	clk )

static

Reads supported bus clock and switch SDC to appropriate mode.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[out]	clk	pointer to clock enum

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 319 of file hal_sdc.c.

References _mmcsd_get_slice(), SDCDriver::buf, HAL_FAILED, HAL_SUCCESS, MMCSD_CMD_SWITCH, MMCSD_CSD_10_CSD_STRUCTURE_SLICE, SD_SWITCH_FUNCTION_SPEED, SD_SWITCH_SET, SDC_CLK_25MHz, SDC_CLK_50MHz, sdc_cmd6_check_status(), sdc_cmd6_construct(), sdc_cmd6_extract_info(), and sdc_lld_read_special().

Referenced by detect_bus_clk().

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◆ mmc_detect_bus_clk()

bool mmc_detect_bus_clk	(	SDCDriver *	sdcp,
		sdcbusclk_t *	clk )

static

Reads supported bus clock and switch MMC to appropriate mode.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[out]	clk	pointer to clock enum

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 373 of file hal_sdc.c.

References HAL_SUCCESS, mmc_cmd6_construct(), MMC_SWITCH_WRITE_BYTE, MMCSD_CMD_SWITCH, MMCSD_R1_ERROR, SDC_CLK_25MHz, SDC_CLK_50MHz, and sdc_lld_send_cmd_short_crc().

Referenced by detect_bus_clk().

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◆ detect_bus_clk()

bool detect_bus_clk	(	SDCDriver *	sdcp,
		sdcbusclk_t *	clk )

static

Reads supported bus clock and switch card to appropriate mode.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[out]	clk	pointer to clock enum

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 401 of file hal_sdc.c.

References SDCDriver::cardmode, mmc_detect_bus_clk(), sdc_detect_bus_clk(), SDC_MODE_CARDTYPE_MASK, and SDC_MODE_CARDTYPE_MMC.

Referenced by sdcConnect().

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◆ sdc_set_bus_width()

bool sdc_set_bus_width ( SDCDriver * sdcp )

static

Sets bus width for SDC.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 420 of file hal_sdc.c.

References SDCConfig::bus_width, SDCDriver::config, HAL_FAILED, HAL_SUCCESS, MMCSD_CMD_APP_CMD, MMCSD_CMD_SET_BUS_WIDTH, MMCSD_R1_ERROR, SDCDriver::rca, sdc_lld_send_cmd_short_crc(), sdc_lld_set_bus_mode(), SDC_MODE_1BIT, and SDC_MODE_4BIT.

Referenced by sdcConnect().

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◆ mmc_set_bus_width()

bool mmc_set_bus_width ( SDCDriver * sdcp )

static

Sets bus width for MMC.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 458 of file hal_sdc.c.

References SDCConfig::bus_width, SDCDriver::config, HAL_FAILED, HAL_SUCCESS, mmc_cmd6_construct(), MMC_SWITCH_WRITE_BYTE, MMCSD_CMD_SWITCH, MMCSD_R1_ERROR, osalDbgAssert, sdc_lld_send_cmd_short_crc(), sdc_lld_set_bus_mode(), SDC_MODE_1BIT, SDC_MODE_4BIT, and SDC_MODE_8BIT.

Referenced by sdcConnect().

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◆ _sdc_wait_for_transfer_state_internal()

bool _sdc_wait_for_transfer_state_internal	(	SDCDriver *	sdcp,
		bool	crc_check )

static

Wait for the card to complete pending operations.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	crc_check	CRC check flag

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 498 of file hal_sdc.c.

References HAL_FAILED, HAL_SUCCESS, MMCSD_CMD_SEND_STATUS, MMCSD_R1_ERROR, MMCSD_R1_STS, MMCSD_STS_DATA, MMCSD_STS_PRG, MMCSD_STS_RCV, MMCSD_STS_TRAN, osalThreadSleepMilliseconds, SDCDriver::rca, sdc_lld_send_cmd_short(), and sdc_lld_send_cmd_short_crc().

Referenced by _sdc_wait_for_transfer_state(), and _sdc_wait_for_transfer_state_nocrc().

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◆ _sdc_wait_for_transfer_state()

bool _sdc_wait_for_transfer_state ( SDCDriver * sdcp )

Wait for the card to complete pending operations with CRC check.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 548 of file hal_sdc.c.

References _sdc_wait_for_transfer_state_internal().

Referenced by sdcDisconnect(), and sdcErase().

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◆ _sdc_wait_for_transfer_state_nocrc()

bool _sdc_wait_for_transfer_state_nocrc ( SDCDriver * sdcp )

Wait for the card to complete pending operations without CRC check.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 564 of file hal_sdc.c.

References _sdc_wait_for_transfer_state_internal().

Referenced by sdcConnect().

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◆ sdcInit()

void sdcInit ( void )

SDC Driver initialization.

Note: This function is implicitly invoked by halInit(), there is no need to explicitly initialize the driver.

Function Class:: Object or module nitializer function.

Definition at line 576 of file hal_sdc.c.

References sdc_lld_init().

Referenced by halInit().

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◆ sdcObjectInit()

void sdcObjectInit ( SDCDriver * sdcp )

Initializes the standard part of a SDCDriver structure.

Parameters

[out] sdcp pointer to the SDCDriver object

Function Class:: Object or module nitializer function.

Definition at line 588 of file hal_sdc.c.

References BLK_STOP, SDCDriver::config, SDCDriver::errors, SDC_NO_ERROR, sdc_vmt, and SDCDriver::vmt.

Referenced by sdc_lld_init().

◆ sdcStart()

msg_t sdcStart	(	SDCDriver *	sdcp,
		const SDCConfig *	config )

Configures and activates the SDC peripheral.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	config	pointer to the `SDCConfig` object, can be `NULL` if the driver supports a default configuration or requires no configuration

Returns: The operation status.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 608 of file hal_sdc.c.

References BLK_ACTIVE, BLK_STOP, SDCDriver::config, HAL_RET_SUCCESS, osalDbgAssert, osalDbgCheck, osalSysLock(), osalSysUnlock(), and sdc_lld_start().

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◆ sdcStop()

void sdcStop ( SDCDriver * sdcp )

Deactivates the SDC peripheral.

Parameters

[in] sdcp pointer to the SDCDriver object

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 645 of file hal_sdc.c.

References BLK_ACTIVE, BLK_STOP, SDCDriver::config, osalDbgAssert, osalDbgCheck, osalSysLock(), osalSysUnlock(), and sdc_lld_stop().

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◆ sdcConnect()

bool sdcConnect ( SDCDriver * sdcp )

Performs the initialization procedure on the inserted card.

This function should be invoked when a card is inserted and brings the driver in the BLK_READY state where it is possible to perform read and write operations.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 675 of file hal_sdc.c.

References _mmcsd_get_capacity(), _mmcsd_get_capacity_ext(), _mmcsd_get_slice(), _sdc_wait_for_transfer_state_nocrc(), BLK_ACTIVE, BLK_CONNECTING, BLK_READY, SDCDriver::buf, SDCDriver::cardmode, detect_bus_clk(), HAL_FAILED, HAL_SUCCESS, mmc_init(), mmc_set_bus_width(), MMCSD_BLOCK_SIZE, MMCSD_CMD_ALL_SEND_CID, MMCSD_CMD_GO_IDLE_STATE, MMCSD_CMD_SEL_DESEL_CARD, MMCSD_CMD_SEND_CSD, MMCSD_CMD_SEND_EXT_CSD, MMCSD_CMD_SEND_RELATIVE_ADDR, MMCSD_CMD_SET_BLOCKLEN, MMCSD_CSD_MMC_CSD_STRUCTURE_SLICE, MMCSD_R1_ERROR, mode_detect(), osalDbgAssert, osalDbgCheck, SDCDriver::rca, SDC_CLK_25MHz, sdc_init(), sdc_lld_read_special(), sdc_lld_send_cmd_long_crc(), sdc_lld_send_cmd_none(), sdc_lld_send_cmd_short_crc(), sdc_lld_set_data_clk(), sdc_lld_start_clk(), sdc_lld_stop_clk(), SDC_MODE_CARDTYPE_MASK, SDC_MODE_CARDTYPE_MMC, SDC_MODE_CARDTYPE_SDV11, SDC_MODE_CARDTYPE_SDV20, and sdc_set_bus_width().

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◆ sdcDisconnect()

bool sdcDisconnect ( SDCDriver * sdcp )

Brings the driver in a state safe for card removal.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 815 of file hal_sdc.c.

References _sdc_wait_for_transfer_state(), BLK_ACTIVE, BLK_DISCONNECTING, BLK_READY, HAL_FAILED, HAL_SUCCESS, osalDbgAssert, osalDbgCheck, osalSysLock(), osalSysUnlock(), and sdc_lld_stop_clk().

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◆ sdcRead()

bool sdcRead	(	SDCDriver *	sdcp,
		uint32_t	startblk,
		uint8_t *	buf,
		uint32_t	n )

Reads one or more blocks.

Precondition: The driver must be in the BLK_READY state after a successful sdcConnect() invocation.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	startblk	first block to read
[out]	buf	pointer to the read buffer
[in]	n	number of blocks to read

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 858 of file hal_sdc.c.

References BLK_READING, BLK_READY, SDCDriver::errors, HAL_FAILED, osalDbgAssert, osalDbgCheck, sdc_lld_read(), and SDC_OVERFLOW_ERROR.

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◆ sdcWrite()

bool sdcWrite	(	SDCDriver *	sdcp,
		uint32_t	startblk,
		const uint8_t *	buf,
		uint32_t	n )

Writes one or more blocks.

Precondition: The driver must be in the BLK_READY state after a successful sdcConnect() invocation.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	startblk	first block to write
[out]	buf	pointer to the write buffer
[in]	n	number of blocks to write

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 895 of file hal_sdc.c.

References BLK_READY, BLK_WRITING, SDCDriver::errors, HAL_FAILED, osalDbgAssert, osalDbgCheck, sdc_lld_write(), and SDC_OVERFLOW_ERROR.

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◆ sdcGetAndClearErrors()

sdcflags_t sdcGetAndClearErrors ( SDCDriver * sdcp )

Returns the errors mask associated to the previous operation.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The errors mask.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 925 of file hal_sdc.c.

References BLK_READY, SDCDriver::errors, osalDbgAssert, osalDbgCheck, osalSysLock(), osalSysUnlock(), and SDC_NO_ERROR.

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◆ sdcSync()

bool sdcSync ( SDCDriver * sdcp )

Waits for card idle condition.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 949 of file hal_sdc.c.

References BLK_READY, BLK_SYNCING, HAL_FAILED, osalDbgCheck, and sdc_lld_sync().

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◆ sdcGetInfo()

bool sdcGetInfo	(	SDCDriver *	sdcp,
		BlockDeviceInfo *	bdip )

Returns the media info.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[out]	bdip	pointer to a `BlockDeviceInfo` structure

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 980 of file hal_sdc.c.

References BlockDeviceInfo::blk_num, BLK_READY, BlockDeviceInfo::blk_size, HAL_FAILED, HAL_SUCCESS, MMCSD_BLOCK_SIZE, and osalDbgCheck.

◆ sdcErase()

bool sdcErase	(	SDCDriver *	sdcp,
		uint32_t	startblk,
		uint32_t	endblk )

Erases the supplied blocks.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	startblk	starting block number
[in]	endblk	ending block number

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 1007 of file hal_sdc.c.

References _sdc_wait_for_transfer_state(), BLK_READY, BLK_WRITING, SDCDriver::cardmode, HAL_FAILED, HAL_SUCCESS, MMCSD_BLOCK_SIZE, MMCSD_CMD_ERASE, MMCSD_CMD_ERASE_RW_BLK_END, MMCSD_CMD_ERASE_RW_BLK_START, MMCSD_R1_ERROR, osalDbgAssert, osalDbgCheck, sdc_lld_send_cmd_short_crc(), and SDC_MODE_HIGH_CAPACITY.

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◆ sdc_lld_init()

void sdc_lld_init ( void )

Low level SDC driver initialization.

Function Class:: Not an API, this function is for internal use only.

Definition at line 65 of file hal_sdc_lld.c.

References SDCD1, and sdcObjectInit().

Referenced by sdcInit().

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◆ sdc_lld_start()

void sdc_lld_start ( SDCDriver * sdcp )

Configures and activates the SDC peripheral.

Parameters

[in] sdcp pointer to the SDCDriver object

Function Class:: Not an API, this function is for internal use only.

Definition at line 79 of file hal_sdc_lld.c.

References BLK_STOP.

Referenced by sdcStart().

◆ sdc_lld_stop()

void sdc_lld_stop ( SDCDriver * sdcp )

Deactivates the SDC peripheral.

Parameters

[in] sdcp pointer to the SDCDriver object

Function Class:: Not an API, this function is for internal use only.

Definition at line 93 of file hal_sdc_lld.c.

References BLK_STOP.

Referenced by sdcStop().

◆ sdc_lld_start_clk()

void sdc_lld_start_clk ( SDCDriver * sdcp )

Starts the SDIO clock and sets it to init mode (400kHz or less).

Parameters

[in] sdcp pointer to the SDCDriver object

Function Class:: Not an API, this function is for internal use only.

Definition at line 107 of file hal_sdc_lld.c.

Referenced by sdcConnect().

◆ sdc_lld_set_data_clk()

void sdc_lld_set_data_clk	(	SDCDriver *	sdcp,
		sdcbusclk_t	clk )

Sets the SDIO clock to data mode (25MHz or less).

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	clk	the clock mode

Function Class:: Not an API, this function is for internal use only.

Definition at line 120 of file hal_sdc_lld.c.

Referenced by sdcConnect().

◆ sdc_lld_stop_clk()

void sdc_lld_stop_clk ( SDCDriver * sdcp )

Stops the SDIO clock.

Parameters

[in] sdcp pointer to the SDCDriver object

Function Class:: Not an API, this function is for internal use only.

Definition at line 133 of file hal_sdc_lld.c.

Referenced by sdcConnect(), and sdcDisconnect().

◆ sdc_lld_set_bus_mode()

void sdc_lld_set_bus_mode	(	SDCDriver *	sdcp,
		sdcbusmode_t	mode )

Switches the bus to 4 bits mode.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	mode	bus mode

Function Class:: Not an API, this function is for internal use only.

Definition at line 146 of file hal_sdc_lld.c.

References osalDbgAssert, SDC_MODE_1BIT, SDC_MODE_4BIT, and SDC_MODE_8BIT.

Referenced by mmc_set_bus_width(), and sdc_set_bus_width().

◆ sdc_lld_send_cmd_none()

void sdc_lld_send_cmd_none	(	SDCDriver *	sdcp,
		uint8_t	cmd,
		uint32_t	arg )

Sends an SDIO command with no response expected.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	cmd	card command
[in]	arg	command argument

Function Class:: Not an API, this function is for internal use only.

Definition at line 175 of file hal_sdc_lld.c.

Referenced by mode_detect(), and sdcConnect().

◆ sdc_lld_send_cmd_short()

bool sdc_lld_send_cmd_short	(	SDCDriver *	sdcp,
		uint8_t	cmd,
		uint32_t	arg,
		uint32_t *	resp )

Sends an SDIO command with a short response expected.

Note: The CRC is not verified.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	cmd	card command
[in]	arg	command argument
[out]	resp	pointer to the response buffer (one word)

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 197 of file hal_sdc_lld.c.

References HAL_SUCCESS.

Referenced by _sdc_wait_for_transfer_state_internal(), mmc_init(), and sdc_init().

◆ sdc_lld_send_cmd_short_crc()

bool sdc_lld_send_cmd_short_crc	(	SDCDriver *	sdcp,
		uint8_t	cmd,
		uint32_t	arg,
		uint32_t *	resp )

Sends an SDIO command with a short response expected and CRC.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	cmd	card command
[in]	arg	command argument
[out]	resp	pointer to the response buffer (one word)

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 222 of file hal_sdc_lld.c.

References HAL_SUCCESS.

Referenced by _sdc_wait_for_transfer_state_internal(), mmc_detect_bus_clk(), mmc_set_bus_width(), mode_detect(), sdc_init(), sdc_set_bus_width(), sdcConnect(), and sdcErase().

◆ sdc_lld_send_cmd_long_crc()

bool sdc_lld_send_cmd_long_crc	(	SDCDriver *	sdcp,
		uint8_t	cmd,
		uint32_t	arg,
		uint32_t *	resp )

Sends an SDIO command with a long response expected and CRC.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	cmd	card command
[in]	arg	command argument
[out]	resp	pointer to the response buffer (four words)

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 247 of file hal_sdc_lld.c.

References HAL_SUCCESS.

Referenced by sdcConnect().

◆ sdc_lld_read()

bool sdc_lld_read	(	SDCDriver *	sdcp,
		uint32_t	startblk,
		uint8_t *	buf,
		uint32_t	n )

Reads one or more blocks.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	startblk	first block to read
[out]	buf	pointer to the read buffer
[in]	n	number of blocks to read

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 272 of file hal_sdc_lld.c.

References HAL_SUCCESS.

Referenced by sdcRead().

◆ sdc_lld_write()

bool sdc_lld_write	(	SDCDriver *	sdcp,
		uint32_t	startblk,
		const uint8_t *	buf,
		uint32_t	n )

Writes one or more blocks.

Parameters

[in]	sdcp	pointer to the `SDCDriver` object
[in]	startblk	first block to write
[out]	buf	pointer to the write buffer
[in]	n	number of blocks to write

Returns: The operation status.

Return values

HAL_SUCCESS	operation succeeded.
HAL_FAILED	operation failed.

Function Class:: Not an API, this function is for internal use only.

Definition at line 297 of file hal_sdc_lld.c.

References HAL_SUCCESS.

Referenced by sdcWrite().

◆ sdc_lld_sync()

bool sdc_lld_sync ( SDCDriver * sdcp )

Waits for card idle condition.

Parameters

[in] sdcp pointer to the SDCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 319 of file hal_sdc_lld.c.

References HAL_SUCCESS.

Referenced by sdcSync().

◆ sdc_lld_read_special()

bool sdc_lld_read_special	(	SDCDriver *	sdcp,
		uint8_t *	buf,
		size_t	bytes,
		uint8_t	cmd,
		uint32_t	argument )

Referenced by sdc_detect_bus_clk(), and sdcConnect().

◆ sdc_lld_is_card_inserted()

bool sdc_lld_is_card_inserted ( SDCDriver * sdcp )

◆ sdc_lld_is_write_protected()

bool sdc_lld_is_write_protected ( SDCDriver * sdcp )

Variable Documentation

◆ sdc_vmt

const struct SDCDriverVMT sdc_vmt

static

Initial value:

= {
  (size_t)0,
  (bool (*)(void *))sdc_lld_is_card_inserted,
  (bool (*)(void *))sdc_lld_is_write_protected,
  (bool (*)(void *))sdcConnect,
  (bool (*)(void *))sdcDisconnect,
  (bool (*)(void *, uint32_t, uint8_t *, uint32_t))sdcRead,
  (bool (*)(void *, uint32_t, const uint8_t *, uint32_t))sdcWrite,
  (bool (*)(void *))sdcSync,
  (bool (*)(void *, BlockDeviceInfo *))sdcGetInfo
}

Virtual methods table.

Definition at line 74 of file hal_sdc.c.

Referenced by sdcObjectInit().

◆ SDCD1

SDCDriver SDCD1

SDCD1 driver identifier.

Definition at line 41 of file hal_sdc_lld.c.

Referenced by sdc_lld_init().

Detailed Description

Driver State Machine

Driver Operations

SD card types

SDC bus error conditions

SDC configuration options

Macro Functions

PLATFORM configuration options

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Macro Definition Documentation

◆ SDC_MODE_CARDTYPE_MASK

◆ SDC_MODE_CARDTYPE_SDV11

◆ SDC_MODE_CARDTYPE_SDV20

◆ SDC_MODE_CARDTYPE_MMC

◆ SDC_MODE_HIGH_CAPACITY

◆ SDC_NO_ERROR

◆ SDC_CMD_CRC_ERROR

◆ SDC_DATA_CRC_ERROR

◆ SDC_DATA_TIMEOUT

◆ SDC_COMMAND_TIMEOUT

◆ SDC_TX_UNDERRUN

◆ SDC_RX_OVERRUN

◆ SDC_STARTBIT_ERROR

◆ SDC_OVERFLOW_ERROR

◆ SDC_UNHANDLED_ERROR

◆ SDC_INIT_RETRY

◆ SDC_MMC_SUPPORT

◆ SDC_NICE_WAITING

◆ SDC_INIT_OCR_V20

◆ SDC_INIT_OCR

◆ sdcIsCardInserted

◆ sdcIsWriteProtected

◆ PLATFORM_SDC_USE_SDC1

◆ _sdc_driver_methods

Typedef Documentation

◆ sdcmode_t

◆ sdcflags_t

◆ SDCDriver

Enumeration Type Documentation

◆ mmc_switch_t

◆ sd_switch_t

◆ sd_switch_function_t

◆ sdcbusmode_t

◆ sdcbusclk_t

Function Documentation

◆ mode_detect()

◆ mmc_init()

◆ sdc_init()

◆ mmc_cmd6_construct()

◆ sdc_cmd6_construct()

◆ sdc_cmd6_extract_info()

◆ sdc_cmd6_check_status()

◆ sdc_detect_bus_clk()

◆ mmc_detect_bus_clk()

◆ detect_bus_clk()

◆ sdc_set_bus_width()

◆ mmc_set_bus_width()

◆ _sdc_wait_for_transfer_state_internal()

◆ _sdc_wait_for_transfer_state()

◆ _sdc_wait_for_transfer_state_nocrc()

◆ sdcInit()

◆ sdcObjectInit()

◆ sdcStart()

◆ sdcStop()

◆ sdcConnect()

◆ sdcDisconnect()

◆ sdcRead()

◆ sdcWrite()

◆ sdcGetAndClearErrors()

◆ sdcSync()

◆ sdcGetInfo()

◆ sdcErase()

◆ sdc_lld_init()

◆ sdc_lld_start()

◆ sdc_lld_stop()