48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
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#ifndef __SD_H__
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#define __SD_H__
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#include <stdint.h>
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/* SD/MMC Commands */
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#define GO_IDLE_STATE (0x40 + 0) // CMD0
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#define SEND_OP_COND (0x40 + 1)
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#define CMD8 (0x40 + 8) // CMD8
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#define SEND_CSD (0x40 + 9)
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#define SEND_CID (0x40 + 10) // CMD10
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#define STOP_TRAN (0x40 + 12) // CMD12
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#define SET_BLOCKLEN (0x40 + 16) // CMD16
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#define READ_BLOCK (0x40 + 17)
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#define READ_MULT_BLOCK (0x40 + 18)
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#define WRITE_BLOCK (0x40 + 24)
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#define WRITE_MULT_BLOCK (0x40 + 25)
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#define APP_CMD (0x40 + 55) // CMD55
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#define READ_OCR (0x40 + 58) // CMD58
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#define CRC_ON_OFF (0x40 + 59)
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#define SD_SEND_OP_COND (0xC0 + 41) // ACMD41
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#define SD_STATUS (0xC0 + 13) // ACMD13, SD_STATUS (SDC)
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#define SET_WR_BLK_ERASE_COUNT (0xC0 + 23) // ACMD23 (SDC)
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/* Card type flags (CardType) */
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#define CT_NONE 0x00
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#define CT_MMC 0x01
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#define CT_SD1 0x02
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#define CT_SD2 0x04
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#define CT_SDC (CT_SD1|CT_SD2)
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#define CT_BLOCK 0x08
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/* MMC device configuration */
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typedef struct tagSDCFG{
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uint32_t sernum; // serial number
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uint32_t size; // size=sectorsize*sectorcnt
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uint32_t sectorcnt; //
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uint32_t sectorsize; // 512
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uint32_t blocksize; // erase block size
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uint8_t ocr[4]; // OCR
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uint8_t cid[16]; // CID
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uint8_t csd[16]; // CSD
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} SDCFG;
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void rt_hw_sdcard_init(void);
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#endif
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