Functions
uint8_t	BSP_SD_Init (void)
	Initializes the SD/SD communication.
uint8_t	BSP_SD_IsDetected (void)
	Detects if SD card is correctly plugged in the memory slot or not.
uint8_t	BSP_SD_GetCardInfo (SD_CardInfo *pCardInfo)
	Returns information about specific card.
uint8_t	BSP_SD_ReadBlocks (uint32_t *pData, uint32_t ReadAddr, uint16_t BlockSize, uint32_t NumberOfBlocks)
	Reads block(s) from a specified address in the SD card, in polling mode.
uint8_t	BSP_SD_WriteBlocks (uint32_t *pData, uint32_t WriteAddr, uint16_t BlockSize, uint32_t NumberOfBlocks)
	Writes block(s) to a specified address in the SD card, in polling mode.
uint8_t	BSP_SD_Erase (uint32_t StartAddr, uint32_t EndAddr)
	Erases the specified memory area of the given SD card.
uint8_t	BSP_SD_GetStatus (void)
	Returns the SD status.
static uint8_t	SD_GetCSDRegister (SD_CSD *Csd)
	Reads the SD card SCD register.
static uint8_t	SD_GetCIDRegister (SD_CID *Cid)
	Reads the SD card CID register.
static SD_CmdAnswer_typedef	SD_SendCmd (uint8_t Cmd, uint32_t Arg, uint8_t Crc, uint8_t Answer)
	Sends 5 bytes command to the SD card and get response.
static uint8_t	SD_GetDataResponse (void)
	Gets the SD card data response and check the busy flag.
static uint8_t	SD_GoIdleState (void)
	Put the SD in Idle state.
static uint8_t	SD_ReadData (void)
	Waits a data until a value different from SD_DUMMY_BITE.
static uint8_t	SD_WaitData (uint8_t data)
	Waits a data from the SD card.

Function Documentation

uint8_t BSP_SD_Erase	(	uint32_t	StartAddr,
		uint32_t	EndAddr
	)

Erases the specified memory area of the given SD card.

Parameters:

StartAddr,:	Start byte address
EndAddr,:	End byte address

Return values:

SD status

Definition at line 524 of file stm32l073z_eval_sd.c.

References BSP_SD_ERROR, BSP_SD_OK, SD_CmdAnswer_typedef::r1, SD_ANSWER_R1_EXPECTED, SD_ANSWER_R1B_EXPECTED, SD_CMD_ERASE, SD_CMD_SD_ERASE_GRP_END, SD_CMD_SD_ERASE_GRP_START, SD_DUMMY_BYTE, SD_IO_CSState(), SD_IO_WriteByte(), SD_R1_NO_ERROR, and SD_SendCmd().

uint8_t BSP_SD_GetCardInfo ( SD_CardInfo * pCardInfo )

Returns information about specific card.

Parameters:

pCardInfo,: Pointer to a SD_CardInfo structure that contains all SD card information.

Return values:

The	SD Response: MSD_ERROR: Sequence failed MSD_OK: Sequence succeed

Definition at line 338 of file stm32l073z_eval_sd.c.

References SD_CardInfo::CardBlockSize, SD_CardInfo::CardCapacity, SD_CardInfo::Cid, SD_CardInfo::Csd, struct_v1::DeviceSize, struct_v2::DeviceSize, struct_v1::DeviceSizeMul, SD_CSD::RdBlockLen, SD_GetCIDRegister(), SD_GetCSDRegister(), SD_CSD::csd_version::v1, SD_CSD::csd_version::v2, and SD_CSD::version.

uint8_t BSP_SD_GetStatus ( void )

Returns the SD status.

Parameters:

None

Return values:

The	SD status.

Definition at line 561 of file stm32l073z_eval_sd.c.

References BSP_SD_ERROR, BSP_SD_OK, SD_CmdAnswer_typedef::r1, SD_CmdAnswer_typedef::r2, SD_ANSWER_R2_EXPECTED, SD_CMD_SEND_STATUS, SD_DUMMY_BYTE, SD_IO_CSState(), SD_IO_WriteByte(), SD_R1_NO_ERROR, SD_R2_NO_ERROR, and SD_SendCmd().

uint8_t BSP_SD_Init ( void )

Initializes the SD/SD communication.

Parameters:

None

Return values:

The	SD Response: MSD_ERROR: Sequence failed MSD_OK: Sequence succeed

Definition at line 289 of file stm32l073z_eval_sd.c.

References BSP_SD_IsDetected(), MSD_ERROR, SD_GoIdleState(), SD_IO_Init(), SD_NOT_PRESENT, and SD_PRESENT.

uint8_t BSP_SD_IsDetected ( void )

Detects if SD card is correctly plugged in the memory slot or not.

Parameters:

None

Return values:

Returns if SD is detected or not

Definition at line 314 of file stm32l073z_eval_sd.c.

References BSP_IO_ReadPin(), SD_DETECT_PIN, SD_NOT_PRESENT, and SD_PRESENT.

Referenced by BSP_SD_Init().

uint8_t BSP_SD_ReadBlocks	(	uint32_t *	pData,
		uint32_t	ReadAddr,
		uint16_t	BlockSize,
		uint32_t	NumberOfBlocks
	)

Reads block(s) from a specified address in the SD card, in polling mode.

Parameters:

pData,:	Pointer to the buffer that will contain the data to transmit
ReadAddr,:	Address from where data is to be read
BlockSize,:	SD card data block size, that should be 512
NumOfBlocks,:	Number of SD blocks to read

Return values:

SD status

Definition at line 368 of file stm32l073z_eval_sd.c.

References BSP_SD_ERROR, BSP_SD_OK, SD_CmdAnswer_typedef::r1, SD_ANSWER_R1_EXPECTED, SD_CMD_READ_SINGLE_BLOCK, SD_CMD_SET_BLOCKLEN, SD_DUMMY_BYTE, SD_IO_CSState(), SD_IO_WriteByte(), SD_IO_WriteReadData(), SD_R1_NO_ERROR, SD_SendCmd(), SD_TOKEN_START_DATA_SINGLE_BLOCK_READ, and SD_WaitData().

uint8_t BSP_SD_WriteBlocks	(	uint32_t *	pData,
		uint32_t	WriteAddr,
		uint16_t	BlockSize,
		uint32_t	NumberOfBlocks
	)

Writes block(s) to a specified address in the SD card, in polling mode.

Parameters:

pData,:	Pointer to the buffer that will contain the data to transmit
WriteAddr,:	Address from where data is to be written
BlockSize,:	SD card data block size, that should be 512
NumOfBlocks,:	Number of SD blocks to write

Return values:

SD status

Definition at line 445 of file stm32l073z_eval_sd.c.

References BSP_SD_ERROR, BSP_SD_OK, SD_CmdAnswer_typedef::r1, SD_ANSWER_R1_EXPECTED, SD_CMD_SET_BLOCKLEN, SD_CMD_WRITE_SINGLE_BLOCK, SD_DATA_OK, SD_DUMMY_BYTE, SD_GetDataResponse(), SD_IO_CSState(), SD_IO_WriteByte(), SD_IO_WriteReadData(), SD_R1_NO_ERROR, SD_SendCmd(), and SD_TOKEN_START_DATA_SINGLE_BLOCK_WRITE.

uint8_t SD_GetCIDRegister ( SD_CID * Cid ) [static]

Reads the SD card CID register.

Reading the contents of the CID register in SPI mode is a simple read-block transaction.

Parameters:

Cid,: pointer on an CID register structure

Return values:

SD status

Definition at line 700 of file stm32l073z_eval_sd.c.

References BSP_SD_ERROR, BSP_SD_OK, SD_CID::CID_CRC, SD_CID::ManufactDate, SD_CID::ManufacturerID, SD_CID::OEM_AppliID, SD_CID::ProdName1, SD_CID::ProdName2, SD_CID::ProdRev, SD_CID::ProdSN, SD_CmdAnswer_typedef::r1, SD_CID::Reserved1, SD_CID::Reserved2, SD_ANSWER_R1_EXPECTED, SD_CMD_SEND_CID, SD_DUMMY_BYTE, SD_IO_CSState(), SD_IO_WriteByte(), SD_R1_NO_ERROR, SD_SendCmd(), SD_TOKEN_START_DATA_SINGLE_BLOCK_READ, and SD_WaitData().

Referenced by BSP_SD_GetCardInfo().

uint8_t SD_GetCSDRegister ( SD_CSD * Csd ) [static]

Reads the SD card SCD register.

Reading the contents of the CSD register in SPI mode is a simple read-block transaction.

Parameters:

Csd,: pointer on an SCD register structure

Return values:

SD status

Definition at line 586 of file stm32l073z_eval_sd.c.

References BSP_SD_ERROR, BSP_SD_OK, SD_CSD::CardComdClasses, SD_CSD::CopyFlag, SD_CSD::crc, SD_CSD::CSDStruct, struct_v1::DeviceSize, struct_v2::DeviceSize, struct_v1::DeviceSizeMul, SD_CSD::DSRImpl, SD_CSD::EraseSectorSize, SD_CSD::EraseSingleBlockEnable, SD_CSD::FileFormat, SD_CSD::FileFormatGrouop, SD_CSD::MaxBusClkFrec, struct_v1::MaxRdCurrentVDDMax, struct_v1::MaxRdCurrentVDDMin, SD_CSD::MaxWrBlockLen, struct_v1::MaxWrCurrentVDDMax, struct_v1::MaxWrCurrentVDDMin, SD_CSD::NSAC, SD_CSD::PartBlockRead, SD_CSD::PermWrProtect, SD_CmdAnswer_typedef::r1, SD_CSD::RdBlockLen, SD_CSD::RdBlockMisalign, struct_v1::Reserved1, struct_v2::Reserved1, SD_CSD::Reserved1, struct_v2::Reserved2, SD_CSD::Reserved2, SD_CSD::Reserved3, SD_CSD::Reserved4, SD_CSD::Reserved5, SD_ANSWER_R1_EXPECTED, SD_CMD_SEND_CSD, SD_DUMMY_BYTE, SD_IO_CSState(), SD_IO_WriteByte(), SD_R1_NO_ERROR, SD_SendCmd(), SD_TOKEN_START_DATA_SINGLE_BLOCK_READ, SD_WaitData(), SD_CSD::TAAC, SD_CSD::TempWrProtect, SD_CSD::csd_version::v1, SD_CSD::csd_version::v2, SD_CSD::version, SD_CSD::WrBlockMisalign, SD_CSD::WriteBlockPartial, SD_CSD::WrProtectGrEnable, SD_CSD::WrProtectGrSize, and SD_CSD::WrSpeedFact.

Referenced by BSP_SD_GetCardInfo().

uint8_t SD_GetDataResponse ( void ) [static]

Gets the SD card data response and check the busy flag.

Parameters:

None

Return values:

The	SD status: Read data response xxx0<status>1 status 010: Data accecpted status 101: Data rejected due to a crc error status 110: Data rejected due to a Write error. status 111: Data rejected due to other error.

Definition at line 866 of file stm32l073z_eval_sd.c.

References SD_DATA_CRC_ERROR, SD_DATA_OK, SD_DATA_OTHER_ERROR, SD_DATA_WRITE_ERROR, SD_DUMMY_BYTE, SD_IO_CSState(), and SD_IO_WriteByte().

Referenced by BSP_SD_WriteBlocks().

uint8_t SD_GoIdleState ( void ) [static]

Put the SD in Idle state.

Parameters:

None

Return values:

SD status

Definition at line 905 of file stm32l073z_eval_sd.c.

References BSP_SD_ERROR, BSP_SD_OK, SD_CmdAnswer_typedef::r1, SD_CmdAnswer_typedef::r2, SD_ANSWER_R1_EXPECTED, SD_ANSWER_R3_EXPECTED, SD_ANSWER_R7_EXPECTED, SD_CMD_APP_CMD, SD_CMD_GO_IDLE_STATE, SD_CMD_READ_OCR, SD_CMD_SD_APP_OP_COND, SD_CMD_SEND_IF_COND, SD_DUMMY_BYTE, SD_IO_CSState(), SD_IO_WriteByte(), SD_MAX_TRY, SD_R1_ILLEGAL_COMMAND, SD_R1_IN_IDLE_STATE, SD_R1_NO_ERROR, and SD_SendCmd().