STM32L073Z_EVAL BSP User Manual
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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_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. | |
uint8_t | BSP_SD_GetCardInfo (SD_CardInfo *pCardInfo) |
Returns information about specific card. | |
void | SD_IO_Init (void) |
Initializes the SD Card and put it into StandBy State (Ready for data transfer). | |
void | SD_IO_CSState (uint8_t state) |
void | SD_IO_WriteReadData (const uint8_t *DataIn, uint8_t *DataOut, uint16_t DataLength) |
Write a byte on the SD. | |
uint8_t | SD_IO_WriteByte (uint8_t Data) |
Writes a byte on the SD. |
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.
void SD_IO_CSState | ( | uint8_t | state | ) |
Definition at line 1115 of file stm32l073z_eval.c.
References SD_CS_HIGH, and SD_CS_LOW.
Referenced by BSP_SD_Erase(), BSP_SD_GetStatus(), BSP_SD_ReadBlocks(), BSP_SD_WriteBlocks(), SD_GetCIDRegister(), SD_GetCSDRegister(), SD_GetDataResponse(), SD_GoIdleState(), and SD_SendCmd().
void SD_IO_Init | ( | void | ) |
Initializes the SD Card and put it into StandBy State (Ready for data transfer).
- Parameters:
-
None
- Return values:
-
None
Definition at line 1077 of file stm32l073z_eval.c.
References BSP_IO_ConfigPin(), BSP_IO_Init(), IO_OK, SD_CS_GPIO_CLK_ENABLE, SD_CS_GPIO_PORT, SD_CS_HIGH, SD_CS_PIN, SD_DETECT_PIN, SD_DUMMY_BYTE, SD_IO_WriteByte(), and SPIx_Init().
Referenced by BSP_SD_Init().
uint8_t SD_IO_WriteByte | ( | uint8_t | Data | ) |
Writes a byte on the SD.
- Parameters:
-
Data,: byte to send.
- Return values:
-
None
Definition at line 1145 of file stm32l073z_eval.c.
References SPIx_WriteReadData(), and tmp.
Referenced by BSP_SD_Erase(), BSP_SD_GetStatus(), BSP_SD_ReadBlocks(), BSP_SD_WriteBlocks(), SD_GetCIDRegister(), SD_GetCSDRegister(), SD_GetDataResponse(), SD_GoIdleState(), SD_IO_Init(), SD_ReadData(), SD_SendCmd(), and SD_WaitData().
void SD_IO_WriteReadData | ( | const uint8_t * | DataIn, |
uint8_t * | DataOut, | ||
uint16_t | DataLength | ||
) |
Write a byte on the SD.
- Parameters:
-
Data,: byte to send.
- Return values:
-
None
Definition at line 1132 of file stm32l073z_eval.c.
References SPIx_WriteReadData().
Referenced by BSP_SD_ReadBlocks(), BSP_SD_WriteBlocks(), and SD_SendCmd().
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