STM32072B_EVAL BSP User Manual: Private Functions

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 682 of file stm32072b_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().

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 568 of file stm32072b_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().

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 839 of file stm32072b_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().

Put the SD in Idle state.

Return values:

SD

status

Definition at line 880 of file stm32072b_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().

Referenced by BSP_SD_Init().

Waits a data until a value different from SD_DUMMY_BITE.

Return values:

the	value read

Definition at line 981 of file stm32072b_eval_sd.c.

References SD_DUMMY_BYTE, and SD_IO_WriteByte().

Referenced by SD_SendCmd().

Send 5 bytes command to the SD card and get response.

Parameters:

Cmd	The user expected command to send to SD card.
Arg	The command argument.
Crc	The CRC.
Answer	SD_ANSWER_NOT_EXPECTED or SD_ANSWER_EXPECTED

Return values:

SD

status

Definition at line 775 of file stm32072b_eval_sd.c.

References SD_CmdAnswer_typedef::r1, SD_CmdAnswer_typedef::r2, SD_CmdAnswer_typedef::r3, SD_CmdAnswer_typedef::r4, SD_CmdAnswer_typedef::r5, SD_ANSWER_R1_EXPECTED, SD_ANSWER_R1B_EXPECTED, SD_ANSWER_R2_EXPECTED, SD_ANSWER_R3_EXPECTED, SD_ANSWER_R7_EXPECTED, SD_CMD_LENGTH, SD_DUMMY_BYTE, SD_IO_CSState(), SD_IO_WriteByte(), SD_IO_WriteReadData(), and SD_ReadData().

Referenced by BSP_SD_Erase(), BSP_SD_GetStatus(), BSP_SD_ReadBlocks(), BSP_SD_WriteBlocks(), SD_GetCIDRegister(), SD_GetCSDRegister(), and SD_GoIdleState().

Waits a data from the SD card.

Parameters:

data	Expected data from the SD card

Return values:

BSP_SD_OK

or BSP_SD_TIMEOUT

Definition at line 1002 of file stm32072b_eval_sd.c.

References BSP_SD_OK, BSP_SD_TIMEOUT, SD_DUMMY_BYTE, and SD_IO_WriteByte().

Referenced by BSP_SD_ReadBlocks(), SD_GetCIDRegister(), and SD_GetCSDRegister().