mmc.h File Reference

---

Detailed Description

Definition in file mmc.h.

#include "global.h"

Go to the source code of this file.

Defines
#define	MMC_GO_IDLE_STATE   0
	initialize card to SPI-type access
#define	MMC_SEND_OP_COND   1
	set card operational mode
#define	MMC_SEND_CSD   9
	get card's CSD
#define	MMC_SEND_CID   10
	get card's CID
#define	MMC_SEND_STATUS   13
#define	MMC_SET_BLOCKLEN   16
	Set number of bytes to transfer per block.
#define	MMC_READ_SINGLE_BLOCK   17
	read a block
#define	MMC_WRITE_BLOCK   24
	write a block
#define	MMC_PROGRAM_CSD   27
#define	MMC_SET_WRITE_PROT   28
#define	MMC_CLR_WRITE_PROT   29
#define	MMC_SEND_WRITE_PROT   30
#define	MMC_TAG_SECTOR_START   32
#define	MMC_TAG_SECTOR_END   33
#define	MMC_UNTAG_SECTOR   34
#define	MMC_TAG_ERASE_GROUP_START   35
	Sets beginning of erase group (mass erase).
#define	MMC_TAG_ERARE_GROUP_END   36
	Sets end of erase group (mass erase).
#define	MMC_UNTAG_ERASE_GROUP   37
	Untag (unset) erase group (mass erase).
#define	MMC_ERASE   38
	Perform block/mass erase.
#define	MMC_CRC_ON_OFF   59
	Turns CRC check on/off.
#define	MMC_R1_BUSY   0x80
	R1 response: bit indicates card is busy.
#define	MMC_R1_PARAMETER   0x40
#define	MMC_R1_ADDRESS   0x20
#define	MMC_R1_ERASE_SEQ   0x10
#define	MMC_R1_COM_CRC   0x08
#define	MMC_R1_ILLEGAL_COM   0x04
#define	MMC_R1_ERASE_RESET   0x02
#define	MMC_R1_IDLE_STATE   0x01
#define	MMC_STARTBLOCK_READ   0xFE
	when received from card, indicates that a block of data will follow
#define	MMC_STARTBLOCK_WRITE   0xFE
	when sent to card, indicates that a block of data will follow
#define	MMC_STARTBLOCK_MWRITE   0xFC
#define	MMC_STOPTRAN_WRITE   0xFD
#define	MMC_DE_MASK   0x1F
#define	MMC_DE_ERROR   0x01
#define	MMC_DE_CC_ERROR   0x02
#define	MMC_DE_ECC_FAIL   0x04
#define	MMC_DE_OUT_OF_RANGE   0x04
#define	MMC_DE_CARD_LOCKED   0x04
#define	MMC_DR_MASK   0x1F
#define	MMC_DR_ACCEPT   0x05
#define	MMC_DR_REJECT_CRC   0x0B
#define	MMC_DR_REJECT_WRITE_ERROR   0x0D
Functions
void	mmcInit (void)
u08	mmcReset (void)
u08	mmcSendCommand (u08 cmd, u32 arg)
u08	mmcRead (u32 sector, u08 *buffer)
u08	mmcWrite (u32 sector, u08 *buffer)
u08	mmcCommand (u08 cmd, u32 arg)

---