EFM32 Happy Gecko Software Documentation
efm32hg-doc-5.1.2
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Micro SD card driver for the EFM32GG_DK3750 development kit.
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.
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... | |