EFM32 Leopard Gecko Software Documentation
efm32lg-doc-4.2.1
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Micro SD card driver for the EFM32GG_DK3750 development kit. More...
Go to the source code of this file.
Macros | |
#define | CMD0 (0) |
#define | CMD1 (1) |
#define | ACMD41 (41 | 0x80) |
#define | CMD8 (8) |
#define | CMD9 (9) |
#define | CMD10 (10) |
#define | CMD12 (12) |
#define | ACMD13 (13 | 0x80) |
#define | CMD16 (16) |
#define | CMD17 (17) |
#define | CMD18 (18) |
#define | CMD23 (23) |
#define | ACMD23 (23 | 0x80) |
#define | CMD24 (24) |
#define | CMD25 (25) |
#define | CMD41 (41) |
#define | CMD55 (55) |
#define | CMD58 (58) |
Functions | |
void | MICROSD_Init (void) |
Initialize the SPI peripheral for microSD card usage. SPI pins and speed etc. is defined in microsdconfig.h. | |
void | MICROSD_Deinit (void) |
Deinitialize SPI peripheral. Turn off the SPI peripheral and disable SPI GPIO pins. | |
int | MICROSD_Select (void) |
Select the micro SD card and wait for the card to become ready. More... | |
void | MICROSD_Deselect (void) |
Deselect the micro SD card and release the SPI bus. | |
void | MICROSD_PowerOn (void) |
Turn on micro SD card power. DK doesn't support socket power control, only enable the SPI clock. | |
void | MICROSD_PowerOff (void) |
Turn off micro SD card power. DK doesn't support socket power control, only disable the SPI clock. | |
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... | |
uint8_t | MICROSD_SendCmd (uint8_t cmd, DWORD arg) |
Send a command packet to micro SD card. More... | |
uint8_t | MICROSD_XferSpi (uint8_t data) |
Do one SPI transfer. 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... | |
(C) Copyright 2014 Silicon Labs, 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.