diskio.c File Reference

#include <avr/io.h>
#include "diskio.h"

Defines
#define	CS_LOW()   PORTB &= ~(1<<PB4)
#define	CS_HIGH()   PORTB |= (1<<PB4)
#define	SOCKWP   0
#define	SOCKINS   1
#define	FCLK_SLOW()   SPCR = 0x52
#define	FCLK_FAST()   SPCR = 0x50
#define	CMD0   (0)
#define	CMD1   (1)
#define	ACMD41   (0x80+41)
#define	CMD8   (8)
#define	CMD9   (9)
#define	CMD10   (10)
#define	CMD12   (12)
#define	ACMD13   (0x80+13)
#define	CMD16   (16)
#define	CMD17   (17)
#define	CMD18   (18)
#define	CMD23   (23)
#define	ACMD23   (0x80+23)
#define	CMD24   (24)
#define	CMD25   (25)
#define	CMD55   (55)
#define	CMD58   (58)
#define	CT_MMC   0x01
#define	CT_SD1   0x02
#define	CT_SD2   0x04
#define	CT_SDC   (CT_SD1|CT_SD2)
#define	CT_BLOCK   0x08
#define	xmit_spi(dat)   SPDR=(dat); loop_until_bit_is_set(SPSR,SPIF)
#define	rcvr_spi_m(dst)   SPDR=0xFF; loop_until_bit_is_set(SPSR,SPIF); *(dst)=SPDR
Functions
DSTATUS	disk_initialize (BYTE drv)
DSTATUS	disk_status (BYTE drv)
DRESULT	disk_read (BYTE drv, BYTE *buff, DWORD sector, BYTE count)
DRESULT	disk_write (BYTE drv, const BYTE *buff, DWORD sector, BYTE count)
DRESULT	disk_ioctl (BYTE drv, BYTE ctrl, void *buff)
void	disk_timerproc (void)

---

Define Documentation

#define ACMD13   (0x80+13)

#define ACMD23   (0x80+23)

#define ACMD41   (0x80+41)

#define CMD0   (0)

#define CMD1   (1)

#define CMD10   (10)

#define CMD12   (12)

#define CMD16   (16)

#define CMD17   (17)

#define CMD18   (18)

#define CMD23   (23)

#define CMD24   (24)

#define CMD25   (25)

#define CMD55   (55)

#define CMD58   (58)

#define CMD8   (8)

#define CMD9   (9)

#define CS_HIGH

(

)

PORTB |= (1<<PB4)

#define CS_LOW

(

)

PORTB &= ~(1<<PB4)

#define CT_BLOCK   0x08

#define CT_MMC   0x01

#define CT_SD1   0x02

#define CT_SD2   0x04

#define CT_SDC   (CT_SD1|CT_SD2)

#define FCLK_FAST

(

)

SPCR = 0x50

#define FCLK_SLOW

(

)

SPCR = 0x52

#define rcvr_spi_m

(

dst

)

SPDR=0xFF; loop_until_bit_is_set(SPSR,SPIF); *(dst)=SPDR

#define SOCKINS   1

#define SOCKWP   0

#define xmit_spi

(

dat

)

SPDR=(dat); loop_until_bit_is_set(SPSR,SPIF)

---

Function Documentation

DSTATUS disk_initialize

(

BYTE

drv

)

DRESULT disk_ioctl	(	BYTE	drv,
		BYTE	ctrl,
		void *	buff
	)

DRESULT disk_read	(	BYTE	drv,
		BYTE *	buff,
		DWORD	sector,
		BYTE	count
	)

DSTATUS disk_status

(

BYTE

drv

)

void disk_timerproc

(

void

)

DRESULT disk_write	(	BYTE	drv,
		const BYTE *	buff,
		DWORD	sector,
		BYTE	count
	)