Functions
static uint8_t	SD_GetCIDRegister (SD_CID *Cid)
	Reads the SD card CID register.
static uint8_t	SD_GetCSDRegister (SD_CSD *Csd)
	Reads the SD card SCD register.
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 SD_CmdAnswer_typedef	SD_SendCmd (uint8_t Cmd, uint32_t Arg, uint8_t Crc, uint8_t Answer)
	Send 5 bytes command to the SD card and get response.
static uint8_t	SD_WaitData (uint8_t data)
	Waits a data from the SD card.
static uint8_t	SD_ReadData (void)
	Waits a data until a value different from SD_DUMMY_BITE.
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.

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 500 of file stm32091c_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 314 of file stm32091c_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.

Return values:

The	SD status.

Definition at line 535 of file stm32091c_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.

Return values:

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

Definition at line 269 of file stm32091c_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.

Return values:

Returns if SD is detected or not

Definition at line 293 of file stm32091c_eval_sd.c.

References SD_DETECT_GPIO_PORT, 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
NumberOfBlocks	Number of SD blocks to read

Return values:

SD status

Definition at line 344 of file stm32091c_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
NumberOfBlocks	Number of SD blocks to write

Return values:

SD status

Definition at line 421 of file stm32091c_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 674 of file stm32091c_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 560 of file stm32091c_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.

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 831 of file stm32091c_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.

Return values:

SD status

Definition at line 872 of file stm32091c_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().