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移植ST官方demo，做了部分修改
#include "stm32f10x.h"
#include "sdio_sd.h"
/* RCC时钟配置 */
void RCC_config(void)
{
ErrorStatus HSEStartUpStatus;
/* RCC寄存器设置为默认配置 */
RCC_DeInit();
/* 打开外部高速时钟 */
RCC_HSEConfig(RCC_HSE_ON);
/* 等待外部高速时钟稳定 */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
/* 设置HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* 设置PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* 设置PCLK1 = HCLK / 2 */
RCC_PCLK1Config(RCC_HCLK_Div2);
/* 设置FLASH代码延时 */
FLASH_SetLatency(FLASH_Latency_2);
/* 使能预取址缓存 */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* 设置PLL时钟源为HSE倍频9 72MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
/* 使能PLL */
RCC_PLLCmd(ENABLE);
/* 等待PLL稳定 */
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
/* 设置PLL为系统时钟源 */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* 等待系统时钟源切换到PLL */
while(RCC_GetSYSCLKSource() != 0x08);
}
}
/* 中断配置 */
void NVIC_config(void)
{
/* 选择中断分组2 */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
}
uint8_t wbuf[512];
uint8_t rbuf[512];
int main(void)
{
/* 时钟配置 */
RCC_config();
/* 中断配置 */
NVIC_config();
if(SD_Init() == SD_OK)
{
for(uint16_t i = 0; i < 512; i++)
wbuf[i] = i+1;
SD_WriteBlock(wbuf, 0x00, 512);
SD_WaitWriteOperation();
while(SD_GetStatus() != SD_TRANSFER_OK);
SD_ReadBlock(rbuf, 0x00, 512);
SD_WaitReadOperation();
while(SD_GetStatus() != SD_TRANSFER_OK);
}
while(1)
{
}
}
/**
******************************************************************************
* @file stm32_eval_sdio_sd.h
* @author MCD Application Team
* @version V4.5.0
* @date 07-March-2011
* @brief This file contains all the functions prototypes for the SD Card
* stm32_eval_sdio_sd driver firmware library.
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32_EVAL_SDIO_SD_H
#define __STM32_EVAL_SDIO_SD_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
/** @addtogroup Utilities
* @{
*/
/** @addtogroup STM32_EVAL
* @{
*/
/** @addtogroup Common
* @{
*/
/** @addtogroup STM32_EVAL_SDIO_SD
* @{
*/
#define SDIO_FIFO_ADDRESS ((uint32_t)0x40018080)
/**
* @brief SDIO Intialization Frequency (400KHz max)
*/
#define SDIO_INIT_CLK_DIV ((uint8_t)0xB2)
/**
* @brief SDIO Data Transfer Frequency (25MHz max)
*/
#define SDIO_TRANSFER_CLK_DIV ((uint8_t)0x01)
/** @defgroup STM32_EVAL_SDIO_SD_Exported_Types
* @{
*/
typedef enum
{
/**
* @brief SDIO specific error defines
*/
SD_CMD_CRC_FAIL = (1), /*!< Command response received (but CRC check failed) */
SD_DATA_CRC_FAIL = (2), /*!< Data bock sent/received (CRC check Failed) */
SD_CMD_RSP_TIMEOUT = (3), /*!< Command response timeout */
SD_DATA_TIMEOUT = (4), /*!< Data time out */
SD_TX_UNDERRUN = (5), /*!< Transmit FIFO under-run */
SD_RX_OVERRUN = (6), /*!< Receive FIFO over-run */
SD_START_BIT_ERR = (7), /*!< Start bit not detected on all data signals in widE bus mode */
SD_CMD_OUT_OF_RANGE = (8), /*!< CMD's argument was out of range.*/
SD_ADDR_MISALIGNED = (9), /*!< Misaligned address */
SD_BLOCK_LEN_ERR = (10), /*!< Transferred block length is not allowed for the card or the number of transferred bytes does not match the block length */
SD_ERASE_SEQ_ERR = (11), /*!< An error in the sequence of erase command occurs.*/
SD_BAD_ERASE_PARAM = (12), /*!< An Invalid selection for erase groups */
SD_WRITE_PROT_VIOLATION = (13), /*!< Attempt to program a write protect block */
SD_LOCK_UNLOCK_FAILED = (14), /*!< Sequence or password error has been detected in unlock command or if there was an attempt to access a locked card */
SD_COM_CRC_FAILED = (15), /*!< CRC check of the previous command failed */
SD_ILLEGAL_CMD = (16), /*!< Command is not legal for the card state */
SD_CARD_ECC_FAILED = (17), /*!< Card internal ECC was applied but failed to correct the data */
SD_CC_ERROR = (18), /*!< Internal card controller error */
SD_GENERAL_UNKNOWN_ERROR = (19), /*!< General or Unknown error */
SD_STREAM_READ_UNDERRUN = (20), /*!< The card could not sustain data transfer in stream read operation. */
SD_STREAM_WRITE_OVERRUN = (21), /*!< The card could not sustain data programming in stream mode */
SD_CID_CSD_OVERWRITE = (22), /*!< CID/CSD overwrite error */
SD_WP_ERASE_SKIP = (23), /*!< only partial address space was erased */
SD_CARD_ECC_DISABLED = (24), /*!< Command has been executed without using internal ECC */
SD_ERASE_RESET = (25), /*!< Erase sequence was cleared before executing because an out of erase sequence command was received */
SD_AKE_SEQ_ERROR = (26), /*!< Error in sequence of authentication. */
SD_INVALID_VOLTRANGE = (27),
SD_ADDR_OUT_OF_RANGE = (28),
SD_SWITCH_ERROR = (29),
SD_SDIO_DISABLED = (30),
SD_SDIO_FUNCTION_BUSY = (31),
SD_SDIO_FUNCTION_FAILED = (32),
SD_SDIO_UNKNOWN_FUNCTION = (33),
/**
* @brief Standard error defines
*/
SD_INTERNAL_ERROR,
SD_NOT_CONFIGURED,
SD_REQUEST_PENDING,
SD_REQUEST_NOT_APPLICABLE,
SD_INVALID_PARAMETER,
SD_UNSUPPORTED_FEATURE,
SD_UNSUPPORTED_HW,
SD_ERROR,
SD_OK = 0
} SD_Error;
/**
* @brief SDIO Transfer state
*/
typedef enum
{
SD_TRANSFER_OK = 0,
SD_TRANSFER_BUSY = 1,
SD_TRANSFER_ERROR
} SDTransferState;
/**
* @brief SD Card States
*/
typedef enum
{
SD_CARD_READY = ((uint32_t)0x00000001),
SD_CARD_IDENTIFICATION = ((uint32_t)0x00000002),
SD_CARD_STANDBY = ((uint32_t)0x00000003),
SD_CARD_TRANSFER = ((uint32_t)0x00000004),
SD_CARD_SENDING = ((uint32_t)0x00000005),
SD_CARD_RECEIVING = ((uint32_t)0x00000006),
SD_CARD_PROGRAMMING = ((uint32_t)0x00000007),
SD_CARD_DISCONNECTED = ((uint32_t)0x00000008),
SD_CARD_ERROR = ((uint32_t)0x000000FF)
}SDCardState;
/**
* @brief Card Specific Data: CSD Register
*/
typedef struct
{
__IO uint8_t CSDStruct; /*!< CSD structure */
__IO uint8_t SysSpecVersion; /*!< System specification version */
__IO uint8_t Reserved1; /*!< Reserved */
__IO uint8_t TAAC; /*!< Data read access-time 1 */
__IO uint8_t NSAC; /*!< Data read access-time 2 in CLK cycles */
__IO uint8_t MaxBusClkFrec; /*!< Max. bus clock frequency */
__IO uint16_t CardComdClasses; /*!< Card command classes */
__IO uint8_t RdBlockLen; /*!< Max. read data block length */
__IO uint8_t PartBlockRead; /*!< Partial blocks for read allowed */
__IO uint8_t WrBlockMisalign; /*!< Write block misalignment */
__IO uint8_t RdBlockMisalign; /*!< Read block misalignment */
__IO uint8_t DSRImpl; /*!< DSR implemented */
__IO uint8_t Reserved2; /*!< Reserved */
__IO uint32_t DeviceSize; /*!< Device Size */
__IO uint8_t MaxRdCurrentVDDMin; /*!< Max. read current @ VDD min */
__IO uint8_t MaxRdCurrentVDDMax; /*!< Max. read current @ VDD max */
__IO uint8_t MaxWrCurrentVDDMin; /*!< Max. write current @ VDD min */
__IO uint8_t MaxWrCurrentVDDMax; /*!< Max. write current @ VDD max */
__IO uint8_t DeviceSizeMul; /*!< Device size multiplier */
__IO uint8_t EraseGrSize; /*!< Erase group size */
__IO uint8_t EraseGrMul; /*!< Erase group size multiplier */
__IO uint8_t WrProtectGrSize; /*!< Write protect group size */
__IO uint8_t WrProtectGrEnable; /*!< Write protect group enable */
__IO uint8_t ManDeflECC; /*!< Manufacturer default ECC */
__IO uint8_t WrSpeedFact; /*!< Write speed factor */
__IO uint8_t MaxWrBlockLen; /*!< Max. write data block length */
__IO uint8_t WriteBlockPaPartial; /*!< Partial blocks for write allowed */
__IO uint8_t Reserved3; /*!< Reserded */
__IO uint8_t ContentProtectAppli; /*!< Content protection application */
__IO uint8_t FileFormatGrouop; /*!< File format group */
__IO uint8_t CopyFlag; /*!< Copy flag (OTP) */
__IO uint8_t PermWrProtect; /*!< Permanent write protection */
__IO uint8_t TempWrProtect; /*!< Temporary write protection */
__IO uint8_t FileFormat; /*!< File Format */
__IO uint8_t ECC; /*!< ECC code */
__IO uint8_t CSD_CRC; /*!< CSD CRC */
__IO uint8_t Reserved4; /*!< always 1*/
} SD_CSD;
/**
* @brief Card Identification Data: CID Register
*/
typedef struct
{
__IO uint8_t ManufacturerID; /*!< ManufacturerID */
__IO uint16_t OEM_AppliID; /*!< OEM/Application ID */
__IO uint32_t ProdName1; /*!< Product Name part1 */
__IO uint8_t ProdName2; /*!< Product Name part2*/
__IO uint8_t ProdRev; /*!< Product Revision */
__IO uint32_t ProdSN; /*!< Product Serial Number */
__IO uint8_t Reserved1; /*!< Reserved1 */
__IO uint16_t ManufactDate; /*!< Manufacturing Date */
__IO uint8_t CID_CRC; /*!< CID CRC */
__IO uint8_t Reserved2; /*!< always 1 */
} SD_CID;
/**
* @brief SD Card Status
*/
typedef struct
{
__IO uint8_t DAT_BUS_WIDTH;
__IO uint8_t SECURED_MODE;
__IO uint16_t SD_CARD_TYPE;
__IO uint32_t SIZE_OF_PROTECTED_AREA;
__IO uint8_t SPEED_CLASS;
__IO uint8_t PERFORMANCE_MOVE;
__IO uint8_t AU_SIZE;
__IO uint16_t ERASE_SIZE;
__IO uint8_t ERASE_TIMEOUT;
__IO uint8_t ERASE_OFFSET;
} SD_CardStatus;
/**
* @brief SD Card information
*/
typedef struct
{
SD_CSD SD_csd;
SD_CID SD_cid;
uint32_t CardCapacity; /*!< Card Capacity */
uint32_t CardBlockSize; /*!< Card Block Size */
uint16_t RCA;
uint8_t CardType;
} SD_CardInfo;
/**
* @}
*/
/** @defgroup STM32_EVAL_SDIO_SD_Exported_Constants
* @{
*/
/**
* @brief SDIO Commands Index
*/
#define SD_CMD_GO_IDLE_STATE ((uint8_t)0)
#define SD_CMD_SEND_OP_COND ((uint8_t)1)
#define SD_CMD_ALL_SEND_CID ((uint8_t)2)
#define SD_CMD_SET_REL_ADDR ((uint8_t)3) /*!< SDIO_SEND_REL_ADDR for SD Card */
#define SD_CMD_SET_DSR ((uint8_t)4)
#define SD_CMD_SDIO_SEN_OP_COND ((uint8_t)5)
#define SD_CMD_HS_SWITCH ((uint8_t)6)
#define SD_CMD_SEL_DESEL_CARD ((uint8_t)7)
#define SD_CMD_HS_SEND_EXT_CSD ((uint8_t)8)
#define SD_CMD_SEND_CSD ((uint8_t)9)
#define SD_CMD_SEND_CID ((uint8_t)10)
#define SD_CMD_READ_DAT_UNTIL_STOP ((uint8_t)11) /*!< SD Card doesn't support it */
#define SD_CMD_STOP_TRANSMISSION ((uint8_t)12)
#define SD_CMD_SEND_STATUS ((uint8_t)13)
#define SD_CMD_HS_BUSTEST_READ ((uint8_t)14)
#define SD_CMD_GO_INACTIVE_STATE ((uint8_t)15)
#define SD_CMD_SET_BLOCKLEN ((uint8_t)16)
#define SD_CMD_READ_SINGLE_BLOCK ((uint8_t)17)
#define SD_CMD_READ_MULT_BLOCK ((uint8_t)18)
#define SD_CMD_HS_BUSTEST_WRITE ((uint8_t)19)
#define SD_CMD_WRITE_DAT_UNTIL_STOP ((uint8_t)20) /*!< SD Card doesn't support it */
#define SD_CMD_SET_BLOCK_COUNT ((uint8_t)23) /*!< SD Card doesn't support it */
#define SD_CMD_WRITE_SINGLE_BLOCK ((uint8_t)24)
#define SD_CMD_WRITE_MULT_BLOCK ((uint8_t)25)
#define SD_CMD_PROG_CID ((uint8_t)26) /*!< reserved for manufacturers */
#define SD_CMD_PROG_CSD ((uint8_t)27)
#define SD_CMD_SET_WRITE_PROT ((uint8_t)28)
#define SD_CMD_CLR_WRITE_PROT ((uint8_t)29)
#define SD_CMD_SEND_WRITE_PROT ((uint8_t)30)
#define SD_CMD_SD_ERASE_GRP_START ((uint8_t)32) /*!< To set the address of the first write
block to be erased. (For SD card only) */
#define SD_CMD_SD_ERASE_GRP_END ((uint8_t)33) /*!< To set the address of the last write block of the
continuous range to be erased. (For SD card only) */
#define SD_CMD_ERASE_GRP_START ((uint8_t)35) /*!< To set the address of the first write block to be erased.
(For MMC card only spec 3.31) */
#define SD_CMD_ERASE_GRP_END ((uint8_t)36) /*!< To set the address of the last write block of the
continuous range to be erased. (For MMC card only spec 3.31) */
#define SD_CMD_ERASE ((uint8_t)38)
#define SD_CMD_FAST_IO ((uint8_t)39) /*!< SD Card doesn't support it */
#define SD_CMD_GO_IRQ_STATE ((uint8_t)40) /*!< SD Card doesn't support it */
#define SD_CMD_LOCK_UNLOCK ((uint8_t)42)
#define SD_CMD_APP_CMD ((uint8_t)55)
#define SD_CMD_GEN_CMD ((uint8_t)56)
#define SD_CMD_NO_CMD ((uint8_t)64)
/**
* @brief Following commands are SD Card Specific commands.
* SDIO_APP_CMD should be sent before sending these commands.
*/
#define SD_CMD_APP_SD_SET_BUSWIDTH ((uint8_t)6) /*!< For SD Card only */
#define SD_CMD_SD_APP_STAUS ((uint8_t)13) /*!< For SD Card only */
#define SD_CMD_SD_APP_SEND_NUM_WRITE_BLOCKS ((uint8_t)22) /*!< For SD Card only */
#define SD_CMD_SD_APP_OP_COND ((uint8_t)41) /*!< For SD Card only */
#define SD_CMD_SD_APP_SET_CLR_CARD_DETECT ((uint8_t)42) /*!< For SD Card only */
#define SD_CMD_SD_APP_SEND_SCR ((uint8_t)51) /*!< For SD Card only */
#define SD_CMD_SDIO_RW_DIRECT ((uint8_t)52) /*!< For SD I/O Card only */
#define SD_CMD_SDIO_RW_EXTENDED ((uint8_t)53) /*!< For SD I/O Card only */
/**
* @brief Following commands are SD Card Specific security commands.
* SDIO_APP_CMD should be sent before sending these commands.
*/
#define SD_CMD_SD_APP_GET_MKB ((uint8_t)43) /*!< For SD Card only */
#define SD_CMD_SD_APP_GET_MID ((uint8_t)44) /*!< For SD Card only */
#define SD_CMD_SD_APP_SET_CER_RN1 ((uint8_t)45) /*!< For SD Card only */
#define SD_CMD_SD_APP_GET_CER_RN2 ((uint8_t)46) /*!< For SD Card only */
#define SD_CMD_SD_APP_SET_CER_RES2 ((uint8_t)47) /*!< For SD Card only */
#define SD_CMD_SD_APP_GET_CER_RES1 ((uint8_t)48) /*!< For SD Card only */
#define SD_CMD_SD_APP_SECURE_READ_MULTIPLE_BLOCK ((uint8_t)18) /*!< For SD Card only */
#define SD_CMD_SD_APP_SECURE_WRITE_MULTIPLE_BLOCK ((uint8_t)25) /*!< For SD Card only */
#define SD_CMD_SD_APP_SECURE_ERASE ((uint8_t)38) /*!< For SD Card only */
#define SD_CMD_SD_APP_CHANGE_SECURE_AREA ((uint8_t)49) /*!< For SD Card only */
#define SD_CMD_SD_APP_SECURE_WRITE_MKB ((uint8_t)48) /*!< For SD Card only */
/* Uncomment the following line to select the SDIO Data transfer mode */
#define SD_DMA_MODE ((uint32_t)0x00000000)
/*#define SD_POLLING_MODE ((uint32_t)0x00000002)*/
/**
* @brief SD detection on its memory slot
*/
#define SD_PRESENT ((uint8_t)0x01)
#define SD_NOT_PRESENT ((uint8_t)0x00)
/**
* @brief Supported SD Memory Cards
*/
#define SDIO_STD_CAPACITY_SD_CARD_V1_1 ((uint32_t)0x00000000)
#define SDIO_STD_CAPACITY_SD_CARD_V2_0 ((uint32_t)0x00000001)
#define SDIO_HIGH_CAPACITY_SD_CARD ((uint32_t)0x00000002)
#define SDIO_MULTIMEDIA_CARD ((uint32_t)0x00000003)
#define SDIO_SECURE_DIGITAL_IO_CARD ((uint32_t)0x00000004)
#define SDIO_HIGH_SPEED_MULTIMEDIA_CARD ((uint32_t)0x00000005)
#define SDIO_SECURE_DIGITAL_IO_COMBO_CARD ((uint32_t)0x00000006)
#define SDIO_HIGH_CAPACITY_MMC_CARD ((uint32_t)0x00000007)
/**
* @}
*/
/** @defgroup STM32_EVAL_SDIO_SD_Exported_Macros
* @{
*/
/**
* @}
*/
/** @defgroup STM32_EVAL_SDIO_SD_Exported_Functions
* @{
*/
void SD_DeInit(void);
SD_Error SD_Init(void);
SDTransferState SD_GetStatus(void);
SDCardState SD_GetState(void);
SD_Error SD_PowerON(void);
SD_Error SD_PowerOFF(void);
SD_Error SD_InitializeCards(void);
SD_Error SD_GetCardInfo(SD_CardInfo *cardinfo);
SD_Error SD_GetCardStatus(SD_CardStatus *cardstatus);
SD_Error SD_EnableWideBusOperation(uint32_t WideMode);
SD_Error SD_SelectDeselect(uint32_t addr);
SD_Error SD_ReadBlock(uint8_t *readbuff, uint32_t ReadAddr, uint16_t BlockSize);
SD_Error SD_ReadMultiBlocks(uint8_t *readbuff, uint32_t ReadAddr, uint16_t BlockSize, uint32_t NumberOfBlocks);
SD_Error SD_WriteBlock(uint8_t *writebuff, uint32_t WriteAddr, uint16_t BlockSize);
SD_Error SD_WriteMultiBlocks(uint8_t *writebuff, uint32_t WriteAddr, uint16_t BlockSize, uint32_t NumberOfBlocks);
SDTransferState SD_GetTransferState(void);
SD_Error SD_StopTransfer(void);
SD_Error SD_Erase(uint32_t startaddr, uint32_t endaddr);
SD_Error SD_SendStatus(uint32_t *pcardstatus);
SD_Error SD_SendSDStatus(uint32_t *psdstatus);
SD_Error SD_ProcessIRQSrc(void);
SD_Error SD_WaitReadOperation(void);
SD_Error SD_WaitWriteOperation(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32_EVAL_SDIO_SD_H */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
/**
******************************************************************************
* @file stm32_eval_sdio_sd.c
* @author MCD Application Team
* @version V4.5.0
* @date 07-March-2011
* @brief This file provides a set of functions needed to manage the SDIO SD
* Card memory mounted on STM32xx-EVAL board (refer to stm32_eval.h
* to know about the boards supporting this memory).
*
*
* @verbatim
*
* ===================================================================
* How to use this driver
* ===================================================================
* It implements a high level communication layer for read and write
* from/to this memory. The needed STM32 hardware resources (SDIO and
* GPIO) are defined in stm32xx_eval.h file, and the initialization is
* performed in SD_LowLevel_Init() function declared in stm32xx_eval.c
* file.
* You can easily tailor this driver to any other development board,
* by just adapting the defines for hardware resources and
* SD_LowLevel_Init() function.
*
* A - SD Card Initialization and configuration
* ============================================
* - To initialize the SD Card, use the SD_Init() function. It
* Initializes the SD Card and put it into StandBy State (Ready
* for data transfer). This function provide the following operations:
*
* 1 - Apply the SD Card initialization process at 400KHz and check
* the SD Card type (Standard Capacity or High Capacity). You
* can change or adapt this frequency by adjusting the
* "SDIO_INIT_CLK_DIV" define inside the stm32xx_eval.h file.
* The SD Card frequency (SDIO_CK) is computed as follows:
*
* +---------------------------------------------+
* | SDIO_CK = SDIOCLK / (SDIO_INIT_CLK_DIV + 2) |
* +---------------------------------------------+
*
* In initialization mode and according to the SD Card standard,
* make sure that the SDIO_CK frequency don't exceed 400KHz.
*
* 2 - Get the SD CID and CSD data. All these information are
* managed by the SDCardInfo structure. This structure provide
* also ready computed SD Card capacity and Block size.
*
* 3 - Configure the SD Card Data transfer frequency. By Default,
* the card transfer frequency is set to 24MHz. You can change
* or adapt this frequency by adjusting the "SDIO_TRANSFER_CLK_DIV"
* define inside the stm32xx_eval.h file.
* The SD Card frequency (SDIO_CK) is computed as follows:
*
* +---------------------------------------------+
* | SDIO_CK = SDIOCLK / (SDIO_INIT_CLK_DIV + 2) |
* +---------------------------------------------+
*
* In transfer mode and according to the SD Card standard,
* make sure that the SDIO_CK frequency don't exceed 25MHz
* and 50MHz in High-speed mode switch.
* To be able to use a frequency higher than 24MHz, you should
* use the SDIO peripheral in bypass mode. Refer to the
* corresponding reference manual for more details.
*
* 4 - Select the corresponding SD Card according to the address
* read with the step 2.
*
* 5 - Configure the SD Card in wide bus mode: 4-bits data.
*
* B - SD Card Read operation
* ==========================
* - You can read SD card by using two function: SD_ReadBlock() and
* SD_ReadMultiBlocks() functions. These functions support only
* 512-byte block length.
* - The SD_ReadBlock() function read only one block (512-byte). This
* function can transfer the data using DMA controller or using
* polling mode. To select between DMA or polling mode refer to
* "SD_DMA_MODE" or "SD_POLLING_MODE" inside the stm32_eval_sdio_sd.h
* file and uncomment the corresponding line. By default the SD DMA
* mode is selected
* - The SD_ReadMultiBlocks() function read only mutli blocks (multiple
* of 512-byte).
* - Any read operation should be followed by two functions to check
* if the DMA Controller and SD Card status.
* - SD_ReadWaitOperation(): this function insure that the DMA
* controller has finished all data transfer.
* - SD_GetStatus(): to check that the SD Card has finished the
* data transfer and it is ready for data.
*
* - The DMA transfer is finished by the SDIO Data End interrupt. User
* has to call the SD_ProcessIRQ() function inside the SDIO_IRQHandler().
* Don't forget to enable the SDIO_IRQn interrupt using the NVIC controller.
*
* C - SD Card Write operation
* ===========================
* - You can write SD card by using two function: SD_WriteBlock() and
* SD_WriteMultiBlocks() functions. These functions support only
* 512-byte block length.
* - The SD_WriteBlock() function write only one block (512-byte). This
* function can transfer the data using DMA controller or using
* polling mode. To select between DMA or polling mode refer to
* "SD_DMA_MODE" or "SD_POLLING_MODE" inside the stm32_eval_sdio_sd.h
* file and uncomment the corresponding line. By default the SD DMA
* mode is selected
* - The SD_WriteMultiBlocks() function write only mutli blocks (multiple
* of 512-byte).
* - Any write operation should be followed by two functions to check
* if the DMA Controller and SD Card status.
* - SD_ReadWaitOperation(): this function insure that the DMA
* controller has finished all data transfer.
* - SD_GetStatus(): to check that the SD Card has finished the
* data transfer and it is ready for data.
*
* - The DMA transfer is finished by the SDIO Data End interrupt. User
* has to call the SD_ProcessIRQ() function inside the SDIO_IRQHandler().
* Don't forget to enable the SDIO_IRQn interrupt using the NVIC controller.
*
* D - SD card status
* ==================
* - At any time, you can check the SD Card status and get the SD card
* state by using the SD_GetStatus() function. This function checks
* first if the SD card is still connected and then get the internal
* SD Card transfer state.
* - You can also get the SD card SD Status register by using the
* SD_SendSDStatus() function.
*
* E - Programming Model
* =====================
* Status = SD_Init(); // Initialization Step as described in section A
*
* // SDIO Interrupt ENABLE
* NVIC_InitStructure.NVIC_IRQChannel = SDIO_IRQn;
* NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
* NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
* NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
* NVIC_Init(&NVIC_InitStructure);
*
* // Write operation as described in Section C
* Status = SD_WriteBlock(buffer, address, 512);
* Status = SD_WaitWriteOperation();
* while(SD_GetStatus() != SD_TRANSFER_OK);
*
* Status = SD_WriteMultiBlocks(buffer, address, 512, NUMBEROFBLOCKS);
* Status = SD_WaitWriteOperation();
* while(SD_GetStatus() != SD_TRANSFER_OK);
*
* // Read operation as described in Section B
* Status = SD_ReadBlock(buffer, address, 512);
* Status = SD_WaitReadOperation();
* while(SD_GetStatus() != SD_TRANSFER_OK);
*
* Status = SD_ReadMultiBlocks(buffer, address, 512, NUMBEROFBLOCKS);
* Status = SD_WaitReadOperation();
* while(SD_GetStatus() != SD_TRANSFER_OK);
*
*
* STM32 SDIO Pin assignment
* =========================
* +-----------------------------------------------------------+
* | Pin assignment |
* +-----------------------------+---------------+-------------+
* | STM32 SDIO Pins | SD | Pin |
* +-----------------------------+---------------+-------------+
* | SDIO D2 | D2 | 1 |
* | SDIO D3 | D3 | 2 |
* | SDIO CMD | CMD | 3 |
* | | VCC | 4 (3.3 V)|
* | SDIO CLK | CLK | 5 |
* | | GND | 6 (0 V) |
* | SDIO D0 | D0 | 7 |
* | SDIO D1 | D1 | 8 |
* +-----------------------------+---------------+-------------+
*
* @endverbatim
*
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "sdio_sd.h"
/** @addtogroup Utilities
* @{
*/
/** @addtogroup STM32_EVAL
* @{
*/
/** @addtogroup Common
* @{
*/
/** @addtogroup STM32_EVAL_SDIO_SD
* @brief This file provides all the SD Card driver firmware functions.
* @{
*/
/** @defgroup STM32_EVAL_SDIO_SD_Private_Types
* @{
*/
/**
* @}
*/
/** @defgroup STM32_EVAL_SDIO_SD_Private_Defines
* @{
*/
/**
* @brief SDIO Static flags, TimeOut, FIFO Address
*/
#define NULL 0
#define SDIO_STATIC_FLAGS ((uint32_t)0x000005FF)
#define SDIO_CMD0TIMEOUT ((uint32_t)0x00010000)
/**
* @brief Mask for errors Card Status R1 (OCR Register)
*/
#define SD_OCR_ADDR_OUT_OF_RANGE ((uint32_t)0x80000000)
#define SD_OCR_ADDR_MISALIGNED ((uint32_t)0x40000000)
#define SD_OCR_BLOCK_LEN_ERR ((uint32_t)0x20000000)
#define SD_OCR_ERASE_SEQ_ERR ((uint32_t)0x10000000)
#define SD_OCR_BAD_ERASE_PARAM ((uint32_t)0x08000000)
#define SD_OCR_WRITE_PROT_VIOLATION ((uint32_t)0x04000000)
#define SD_OCR_LOCK_UNLOCK_FAILED ((uint32_t)0x01000000)
#define SD_OCR_COM_CRC_FAILED ((uint32_t)0x00800000)
#define SD_OCR_ILLEGAL_CMD ((uint32_t)0x00400000)
#define SD_OCR_CARD_ECC_FAILED ((uint32_t)0x00200000)
#define SD_OCR_CC_ERROR ((uint32_t)0x00100000)
#define SD_OCR_GENERAL_UNKNOWN_ERROR ((uint32_t)0x00080000)
#define SD_OCR_STREAM_READ_UNDERRUN ((uint32_t)0x00040000)
#define SD_OCR_STREAM_WRITE_OVERRUN ((uint32_t)0x00020000)
#define SD_OCR_CID_CSD_OVERWRIETE ((uint32_t)0x00010000)
#define SD_OCR_WP_ERASE_SKIP ((uint32_t)0x00008000)
#define SD_OCR_CARD_ECC_DISABLED ((uint32_t)0x00004000)
#define SD_OCR_ERASE_RESET ((uint32_t)0x00002000)
#define SD_OCR_AKE_SEQ_ERROR ((uint32_t)0x00000008)
#define SD_OCR_ERRORBITS ((uint32_t)0xFDFFE008)
/**
* @brief Masks for R6 Response
*/
#define SD_R6_GENERAL_UNKNOWN_ERROR ((uint32_t)0x00002000)
#define SD_R6_ILLEGAL_CMD ((uint32_t)0x00004000)
#define SD_R6_COM_CRC_FAILED ((uint32_t)0x00008000)
#define SD_VOLTAGE_WINDOW_SD ((uint32_t)0x80100000)
#define SD_HIGH_CAPACITY ((uint32_t)0x40000000)
#define SD_STD_CAPACITY ((uint32_t)0x00000000)
#define SD_CHECK_PATTERN ((uint32_t)0x000001AA)
#define SD_MAX_VOLT_TRIAL ((uint32_t)0x0000FFFF)
#define SD_ALLZERO ((uint32_t)0x00000000)
#define SD_WIDE_BUS_SUPPORT ((uint32_t)0x00040000)
#define SD_SINGLE_BUS_SUPPORT ((uint32_t)0x00010000)
#define SD_CARD_LOCKED ((uint32_t)0x02000000)
#define SD_DATATIMEOUT ((uint32_t)0xFFFFFFFF)
#define SD_0TO7BITS ((uint32_t)0x000000FF)
#define SD_8TO15BITS ((uint32_t)0x0000FF00)
#define SD_16TO23BITS ((uint32_t)0x00FF0000)
#define SD_24TO31BITS ((uint32_t)0xFF000000)
#define SD_MAX_DATA_LENGTH ((uint32_t)0x01FFFFFF)
#define SD_HALFFIFO ((uint32_t)0x00000008)
#define SD_HALFFIFOBYTES ((uint32_t)0x00000020)
/**
* @brief Command Class Supported
*/
#define SD_CCCC_LOCK_UNLOCK ((uint32_t)0x00000080)
#define SD_CCCC_WRITE_PROT ((uint32_t)0x00000040)
#define SD_CCCC_ERASE ((uint32_t)0x00000020)
/**
* @brief Following commands are SD Card Specific commands.
* SDIO_APP_CMD should be sent before sending these commands.
*/
#define SDIO_SEND_IF_COND ((uint32_t)0x00000008)
/**
* @}
*/
/** @defgroup STM32_EVAL_SDIO_SD_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup STM32_EVAL_SDIO_SD_Private_Variables
* @{
*/
static uint32_t CardType = SDIO_STD_CAPACITY_SD_CARD_V1_1;
static uint32_t CSD_Tab[4], CID_Tab[4], RCA = 0;
static uint8_t SDSTATUS_Tab[16];
__IO uint32_t StopCondition = 0;
__IO SD_Error TransferError = SD_OK;
__IO uint32_t TransferEnd = 0;
SD_CardInfo SDCardInfo;
SDIO_InitTypeDef SDIO_InitStructure;
SDIO_CmdInitTypeDef SDIO_CmdInitStructure;
SDIO_DataInitTypeDef SDIO_DataInitStructure;
/**
* @}
*/
/** @defgroup STM32_EVAL_SDIO_SD_Private_Function_Prototypes
* @{
*/
static SD_Error CmdError(void);
static SD_Error CmdResp1Error(uint8_t cmd);
static SD_Error CmdResp7Error(void);
static SD_Error CmdResp3Error(void);
static SD_Error CmdResp2Error(void);
static SD_Error CmdResp6Error(uint8_t cmd, uint16_t *prca);
static SD_Error SDEnWideBus(FunctionalState NewState);
static SD_Error IsCardProgramming(uint8_t *pstatus);
static SD_Error FindSCR(uint16_t rca, uint32_t *pscr);
uint8_t convert_from_bytes_to_power_of_two(uint16_t NumberOfBytes);
/**
* @}
*/
/** @defgroup STM32_EVAL_SDIO_SD_Private_Functions
* @{
*/
static void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
// SDIO Interrupt ENABLE
NVIC_InitStructure.NVIC_IRQChannel = SDIO_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
/**
* @brief DeInitializes the SDIO interface.
* @param None
* @retval None
*/
void SD_LowLevel_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/*!< Disable SDIO Clock */
SDIO_ClockCmd(DISABLE);
/*!< Set Power State to OFF */
SDIO_SetPowerState(SDIO_PowerState_OFF);
/*!< DeInitializes the SDIO peripheral */
SDIO_DeInit();
/*!< Disable the SDIO AHB Clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_SDIO, DISABLE);
/*!< Configure PC.08, PC.09, PC.10, PC.11, PC.12 pin: D0, D1, D2, D3, CLK pin */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/*!< Configure PD.02 CMD line */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_Init(GPIOD, &GPIO_InitStructure);
}
/**
* @brief Initializes the SD Card and put it into StandBy State (Ready for
* data transfer).
* @param None
* @retval None
*/
void SD_LowLevel_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/*!< GPIOC and GPIOD Periph clock enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD, ENABLE);
/*!< Configure PC.08, PC.09, PC.10, PC.11, PC.12 pin: D0, D1, D2, D3, CLK pin */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/*!< Configure PD.02 CMD line */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/*!< Enable the SDIO AHB Clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_SDIO, ENABLE);
/*!< Enable the DMA2 Clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);
}
/**
* @brief Configures the DMA2 Channel4 for SDIO Tx request.
* @param BufferSRC: pointer to the source buffer
* @param BufferSize: buffer size
* @retval None
*/
void SD_LowLevel_DMA_TxConfig(uint32_t *BufferSRC, uint32_t BufferSize)
{
DMA_InitTypeDef DMA_InitStructure;
DMA_ClearFlag(DMA2_FLAG_TC4 | DMA2_FLAG_TE4 | DMA2_FLAG_HT4 | DMA2_FLAG_GL4);
/*!< DMA2 Channel4 disable */
DMA_Cmd(DMA2_Channel4, DISABLE);
/*!< DMA2 Channel4 Config */
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)BufferSRC;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
DMA_InitStructure.DMA_BufferSize = BufferSize / 4;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA2_Channel4, &DMA_InitStructure);
/*!< DMA2 Channel4 enable */
DMA_Cmd(DMA2_Channel4, ENABLE);
}
/**
* @brief Configures the DMA2 Channel4 for SDIO Rx request.
* @param BufferDST: pointer to the destination buffer
* @param BufferSize: buffer size
* @retval None
*/
void SD_LowLevel_DMA_RxConfig(uint32_t *BufferDST, uint32_t BufferSize)
{
DMA_InitTypeDef DMA_InitStructure;
DMA_ClearFlag(DMA2_FLAG_TC4 | DMA2_FLAG_TE4 | DMA2_FLAG_HT4 | DMA2_FLAG_GL4);
/*!< DMA2 Channel4 disable */
DMA_Cmd(DMA2_Channel4, DISABLE);
/*!< DMA2 Channel4 Config */
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)BufferDST;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = BufferSize / 4;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA2_Channel4, &DMA_InitStructure);
/*!< DMA2 Channel4 enable */
DMA_Cmd(DMA2_Channel4, ENABLE);
}
/**
* @brief Returns the DMA End Of Transfer Status.
* @param None
* @retval DMA SDIO Channel Status.
*/
uint32_t SD_DMAEndOfTransferStatus(void)
{
return (uint32_t)DMA_GetFlagStatus(DMA2_FLAG_TC4);
}
/**
* @brief DeInitializes the SDIO interface.
* @param None
* @retval None
*/
void SD_DeInit(void)
{
SD_LowLevel_DeInit();
}
/**
* @brief Initializes the SD Card and put it into StandBy State (Ready for data
* transfer).
* @param None
* @retval SD_Error: SD Card Error code.
*/
SD_Error SD_Init(void)
{
SD_Error errorstatus = SD_OK;
NVIC_Configuration();
/* SDIO Peripheral Low Level Init */
SD_LowLevel_Init();
SDIO_DeInit();
errorstatus = SD_PowerON();
if (errorstatus != SD_OK)
{
/*!< CMD Response TimeOut (wait for CMDSENT flag) */
return(errorstatus);
}
errorstatus = SD_InitializeCards();
if (errorstatus != SD_OK)
{
/*!< CMD Response TimeOut (wait for CMDSENT flag) */
return(errorstatus);
}
/*!< Configure the SDIO peripheral */
/*!< SDIOCLK = HCLK, SDIO_CK = HCLK/(2 + SDIO_TRANSFER_CLK_DIV) */
/*!< on STM32F2xx devices, SDIOCLK is fixed to 48MHz */
SDIO_InitStructure.SDIO_ClockDiv = SDIO_TRANSFER_CLK_DIV;
SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising;
SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable;
SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable;
SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_1b;
SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable;
SDIO_Init(&SDIO_InitStructure);
if (errorstatus == SD_OK)
{
/*----------------- Read CSD/CID MSD registers ------------------*/
errorstatus = SD_GetCardInfo(&SDCardInfo);
}
if (errorstatus == SD_OK)
{
/*----------------- Select Card --------------------------------*/
errorstatus = SD_SelectDeselect((uint32_t) (SDCardInfo.RCA << 16));
}
if (errorstatus == SD_OK)
{
errorstatus = SD_EnableWideBusOperation(SDIO_BusWide_4b);
}
return(errorstatus);
}
/**
* @brief Gets the cuurent sd card data transfer status.
* @param None
* @retval SDTransferState: Data Transfer state.
* This value can be:
* - SD_TRANSFER_OK: No data transfer is acting
* - SD_TRANSFER_BUSY: Data transfer is acting
*/
SDTransferState SD_GetStatus(void)
{
SDCardState cardstate = SD_CARD_TRANSFER;
cardstate = SD_GetState();
if (cardstate == SD_CARD_TRANSFER)
{
return(SD_TRANSFER_OK);
}
else if(cardstate == SD_CARD_ERROR)
{
return (SD_TRANSFER_ERROR);
}
else
{
return(SD_TRANSFER_BUSY);
}
}
/**
* @brief Returns the current card's state.
* @param None
* @retval SDCardState: SD Card Error or SD Card Current State.
*/
SDCardState SD_GetState(void)
{
uint32_t resp1 = 0;
if (SD_SendStatus(&resp1) != SD_OK)
{
return SD_CARD_ERROR;
}
else
{
return (SDCardState)((resp1 >> 9) & 0x0F);
}
}
/**
* @brief Enquires cards about their operating voltage and configures
* clock controls.
* @param None
* @retval SD_Error: SD Card Error code.
*/
SD_Error SD_PowerON(void)
{
SD_Error errorstatus = SD_OK;
uint32_t response = 0, count = 0, validvoltage = 0;
uint32_t SDType = SD_STD_CAPACITY;
/*!< Power ON Sequence -----------------------------------------------------*/
/*!< Configure the SDIO peripheral */
/*!< SDIOCLK = HCLK, SDIO_CK = HCLK/(2 + SDIO_INIT_CLK_DIV) */
/*!< on STM32F2xx devices, SDIOCLK is fixed to 48MHz */
/*!< SDIO_CK for initialization should not exceed 400 KHz */
SDIO_InitStructure.SDIO_ClockDiv = SDIO_INIT_CLK_DIV;
SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising;
SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable;
SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable;
SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_1b;
SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable;
SDIO_Init(&SDIO_InitStructure);
/*!< Set Power State to ON */
SDIO_SetPowerState(SDIO_PowerState_ON);
/*!< Enable SDIO Clock */
SDIO_ClockCmd(ENABLE);
/*!< CMD0: GO_IDLE_STATE ---------------------------------------------------*/
/*!< No CMD response required */
SDIO_CmdInitStructure.SDIO_Argument = 0x0;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_GO_IDLE_STATE;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_No;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdError();
if (errorstatus != SD_OK)
{
/*!< CMD Response TimeOut (wait for CMDSENT flag) */
return(errorstatus);
}
/*!< CMD8: SEND_IF_COND ----------------------------------------------------*/
/*!< Send CMD8 to verify SD card interface operating condition */
/*!< Argument: - [31:12]: Reserved (shall be set to '0')
- [11:8]: Supply Voltage (VHS) 0x1 (Range: 2.7-3.6 V)
- [7:0]: Check Pattern (recommended 0xAA) */
/*!< CMD Response: R7 */
SDIO_CmdInitStructure.SDIO_Argument = SD_CHECK_PATTERN;
SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_SEND_IF_COND;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp7Error();
if (errorstatus == SD_OK)
{
CardType = SDIO_STD_CAPACITY_SD_CARD_V2_0; /*!< SD Card 2.0 */
SDType = SD_HIGH_CAPACITY;
}
else
{
/*!< CMD55 */
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
}
/*!< CMD55 */
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
/*!< If errorstatus is Command TimeOut, it is a MMC card */
/*!< If errorstatus is SD_OK it is a SD card: SD card 2.0 (voltage range mismatch)
or SD card 1.x */
if (errorstatus == SD_OK)
{
/*!< SD CARD */
/*!< Send ACMD41 SD_APP_OP_COND with Argument 0x80100000 */
while ((!validvoltage) && (count < SD_MAX_VOLT_TRIAL))
{
/*!< SEND CMD55 APP_CMD with RCA as 0 */
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
if (errorstatus != SD_OK)
{
return(errorstatus);
}
SDIO_CmdInitStructure.SDIO_Argument = SD_VOLTAGE_WINDOW_SD | SDType;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_APP_OP_COND;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp3Error();
if (errorstatus != SD_OK)
{
return(errorstatus);
}
response = SDIO_GetResponse(SDIO_RESP1);
validvoltage = (((response >> 31) == 1) ? 1 : 0);
count++;
}
if (count >= SD_MAX_VOLT_TRIAL)
{
errorstatus = SD_INVALID_VOLTRANGE;
return(errorstatus);
}
if (response &= SD_HIGH_CAPACITY)
{
CardType = SDIO_HIGH_CAPACITY_SD_CARD;
}
}/*!< else MMC Card */
return(errorstatus);
}
/**
* @brief Turns the SDIO output signals off.
* @param None
* @retval SD_Error: SD Card Error code.
*/
SD_Error SD_PowerOFF(void)
{
SD_Error errorstatus = SD_OK;
/*!< Set Power State to OFF */
SDIO_SetPowerState(SDIO_PowerState_OFF);
return(errorstatus);
}
/**
* @brief Intialises all cards or single card as the case may be Card(s) come
* into standby state.
* @param None
* @retval SD_Error: SD Card Error code.
*/
SD_Error SD_InitializeCards(void)
{
SD_Error errorstatus = SD_OK;
uint16_t rca = 0x01;
if (SDIO_GetPowerState() == SDIO_PowerState_OFF)
{
errorstatus = SD_REQUEST_NOT_APPLICABLE;
return(errorstatus);
}
if (SDIO_SECURE_DIGITAL_IO_CARD != CardType)
{
/*!< Send CMD2 ALL_SEND_CID */
SDIO_CmdInitStructure.SDIO_Argument = 0x0;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_ALL_SEND_CID;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Long;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp2Error();
if (SD_OK != errorstatus)
{
return(errorstatus);
}
CID_Tab[0] = SDIO_GetResponse(SDIO_RESP1);
CID_Tab[1] = SDIO_GetResponse(SDIO_RESP2);
CID_Tab[2] = SDIO_GetResponse(SDIO_RESP3);
CID_Tab[3] = SDIO_GetResponse(SDIO_RESP4);
}
if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_SECURE_DIGITAL_IO_COMBO_CARD == CardType)
|| (SDIO_HIGH_CAPACITY_SD_CARD == CardType))
{
/*!< Send CMD3 SET_REL_ADDR with argument 0 */
/*!< SD Card publishes its RCA. */
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_REL_ADDR;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp6Error(SD_CMD_SET_REL_ADDR, &rca);
if (SD_OK != errorstatus)
{
return(errorstatus);
}
}
if (SDIO_SECURE_DIGITAL_IO_CARD != CardType)
{
RCA = rca;
/*!< Send CMD9 SEND_CSD with argument as card's RCA */
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)(rca << 16);
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_CSD;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Long;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp2Error();
if (SD_OK != errorstatus)
{
return(errorstatus);
}
CSD_Tab[0] = SDIO_GetResponse(SDIO_RESP1);
CSD_Tab[1] = SDIO_GetResponse(SDIO_RESP2);
CSD_Tab[2] = SDIO_GetResponse(SDIO_RESP3);
CSD_Tab[3] = SDIO_GetResponse(SDIO_RESP4);
}
errorstatus = SD_OK; /*!< All cards get intialized */
return(errorstatus);
}
/**
* @brief Returns i
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