ef6bbc34fa
1. Add ENC28J60 Ethernet controller driver 2. Add lwIP support (Please read "Readme.txt") 3. Add simple Http server demo application 4. Modify USART device write function to avoid sleep in ISR 5. Fix a bug in USART driver when using compiler optimization 6. Modify to make use the start-up code in libraries 7. Change the default build option for squeezing the executable file size 8. Modify source code alignment git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1622 bbd45198-f89e-11dd-88c7-29a3b14d5316
71 lines
2.9 KiB
C
71 lines
2.9 KiB
C
/***************************************************************************//**
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* @file drv_sdcard.h
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* @brief Memory card driver (SPI mode) of RT-Thread RTOS for using EFM32
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* USART module
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* COPYRIGHT (C) 2011, RT-Thread Development Team
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* @author onelife
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* @version 0.4 beta
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*******************************************************************************
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* @section License
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* The license and distribution terms for this file may be found in the file
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* LICENSE in this distribution or at http://www.rt-thread.org/license/LICENSE
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*******************************************************************************
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* @section Change Logs
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* Date Author Notes
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* 2011-05-13 onelife Initial creation for using EFM32 USART module
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* 2011-07-07 onelife Modify initialization function to return error code
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******************************************************************************/
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#ifndef __DEV_SDCARD_H__
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#define __DEV_SDCARD_H__
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/* Includes ------------------------------------------------------------------*/
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/* Exported types ------------------------------------------------------------*/
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/* Exported constants --------------------------------------------------------*/
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/* Exported macro ------------------------------------------------------------*/
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#define EFM32_SDCLK_LOW (100000)
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#define EFM32_SDCLK_HIGH (EFM32_HFXO_FREQUENCY/2)
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#define SD_SPEED_LOW (0)
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#define SD_SPEED_HIGH (1)
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#define SD_WAIT_PERIOD (RT_TICK_PER_SECOND)
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#define SD_SECTOR_SIZE_SHIFT (9)
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#define SD_SECTOR_SIZE (1 << SD_SECTOR_SIZE_SHIFT)
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#define SD_BLOCK_SIZE_CSD (16)
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#define SD_BLOCK_SIZE_CID (16)
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#define SD_BLOCK_SIZE_OCR (4)
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#define SD_BLOCK_SIZE_SDSTAT (64)
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/* Card type definitions (CardType) */
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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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/* Definitions for MMC/SDC command */
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#define CMD0 (0) /* GO_IDLE_STATE */
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#define CMD1 (1) /* SEND_OP_COND */
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#define ACMD41 (41|0x80) /* SEND_OP_COND (SDC) */
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#define CMD8 (8) /* SEND_IF_COND */
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#define CMD9 (9) /* SEND_CSD */
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#define CMD10 (10) /* SEND_CID */
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#define CMD12 (12) /* STOP_TRANSMISSION */
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#define ACMD13 (13|0x80) /* SD_STATUS (SDC) */
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#define CMD16 (16) /* SET_BLOCKLEN */
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#define CMD17 (17) /* READ_SINGLE_BLOCK */
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#define CMD18 (18) /* READ_MULTIPLE_BLOCK */
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#define CMD23 (23) /* SET_BLOCK_COUNT */
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#define ACMD23 (23|0x80) /* SET_WR_BLK_ERASE_COUNT (SDC) */
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#define CMD24 (24) /* WRITE_BLOCK */
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#define CMD25 (25) /* WRITE_MULTIPLE_BLOCK */
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#define CMD41 (41) /* SEND_OP_COND (ACMD) */
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#define CMD55 (55) /* APP_CMD */
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#define CMD58 (58) /* READ_OCR */
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/* Exported functions ------------------------------------------------------- */
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rt_err_t efm_spiSd_init(void);
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void efm_spiSd_deinit(void);
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#endif /* __DEV_SDCARD_H__ */
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