microsd.h File Reference

Detailed Description

Micro SD card driver for the EFM32GG_DK3750 development kit.

Version

5.1.1

License

Copyright 2015 Silicon Labs, Inc. http://www.silabs.com

This file is licensed under the Silabs License Agreement. See the file "Silabs_License_Agreement.txt" for details. Before using this software for any purpose, you must agree to the terms of that agreement.

Definition in file microsd.h.

#include "em_device.h"
#include "microsdconfig.h"
#include "em_gpio.h"
#include "integer.h"

Go to the source code of this file.

Macros
#define	ACMD13   (13 | 0x80)
#define	ACMD23   (23 | 0x80)
#define	ACMD41   (41 | 0x80)
#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	CMD41   (41)
#define	CMD55   (55)
#define	CMD58   (58)
#define	CMD8   (8)
#define	CMD9   (9)

Functions
int	MICROSD_BlockRx (uint8_t *buff, uint32_t btr)
	Receive a data block from micro SD card. More...
int	MICROSD_BlockTx (const uint8_t *buff, uint8_t token)
	Send a data block to micro SD card. More...
void	MICROSD_Deinit (void)
	Deinitialize SPI peripheral. Turn off the SPI peripheral and disable SPI GPIO pins.
void	MICROSD_Deselect (void)
	Deselect the micro SD card and release the SPI bus.
void	MICROSD_Init (void)
	Initialize the SPI peripheral for microSD card usage. SPI pins and speed etc. is defined in microsdconfig.h.
void	MICROSD_PowerOff (void)
	Turn off micro SD card power. DK doesn't support socket power control, only disable the SPI clock.
void	MICROSD_PowerOn (void)
	Turn on micro SD card power. DK doesn't support socket power control, only enable the SPI clock.
int	MICROSD_Select (void)
	Select the micro SD card and wait for the card to become ready. More...
uint8_t	MICROSD_SendCmd (uint8_t cmd, DWORD arg)
	Send a command packet to micro SD card. More...
void	MICROSD_SpiClkFast (void)
	Set SPI clock to maximum frequency.
void	MICROSD_SpiClkSlow (void)
	Set SPI clock to a low frequency suitable for initial card initialization.
bool	MICROSD_TimeOutElapsed (void)
	Check if timeout value set with MICROSD_TimeOutSet() has elapsed. More...
void	MICROSD_TimeOutSet (uint32_t msec)
	Set a timeout value. The timeout value will be decremented towards zero when SPI traffic to/from the micro SD card takes place. Use MICROSD_TimeOutElapsed() to check if timeout has elapsed. More...
uint8_t	MICROSD_XferSpi (uint8_t data)
	Do one SPI transfer. More...