SD Commands

SD Card Commands. More...

Macros
#define	SD_CMD0_GO_IDLE_STATE   ((uint8_t)0)
	Resets the SD memory card.
#define	SD_CMD1_SEND_OP_COND   ((uint8_t)1)
	Sends host capacity support information and activates the card's initialization process.
#define	SD_CMD8_SEND_IF_COND   ((uint8_t)8)
	Sends SD Memory Card interface condition. More...
#define	SD_CMD9_SEND_CSD   ((uint8_t)9)
	Asks the selected card to send its card specific data (CSD).
#define	SD_CMD10_SEND_CID   ((uint8_t)10)
	Asks the selected card to send its card identification (CID).
#define	SD_CMD12_STOP_TRANSMISSION   ((uint8_t)12)
	Forces the card to stop transmission in Multiple Block Read Operation.
#define	SD_CMD16_SET_BLOCKLEN   ((uint8_t)16)
	Sets block length of SDSC Card.
#define	SD_CMD17_READ_SINGLE_BLOCK   ((uint8_t)17)
	Reads a block of data.
#define	SD_CMD18_READ_MULTIPLE_BLOCK   ((uint8_t)18)
	Continuously transfers data blocks from card to host until interrupted by SD_CMD12_STOP_TRANSMISSION command.
#define	SD_CMD24_WRITE_BLOCK   ((uint8_t)24)
	Writes a block of data.
#define	SD_CMD25_WRITE_MULTIPLE_BLOCK   ((uint8_t)25)
	Continuously writes blocks of data until Stop Tran tokens is sent.
#define	SD_CMD55_APP_CMD   ((uint8_t)55)
	Defines to the card that the next command is and application specific command.
#define	SD_CMD58_READ_OCR   ((uint8_t)58)
	Reads the OCR register of the card.
#define	SD_ACMD23_SET_WR_BLK_ERASE_COUNT   ((uint8_t)23)
	Set the number of write blocks to be pre-erased before writing.
#define	SD_ACMD41_SD_SEND_OP_COND   ((uint8_t)41)
	Send host capacity support information and activates the card's initialization process.

Detailed Description

Macro Definition Documentation

SD_CMD8_SEND_IF_COND

#define SD_CMD8_SEND_IF_COND   ((uint8_t)8)

Sends SD Memory Card interface condition that includes host supply voltage information and asks accessed card whether card can operate in supplied voltage range.