Revision 3:fe21abc9cc66, committed 2016-10-27

Comitter:

MikGa87

Date:

Thu Oct 27 10:05:07 2016 +0000

Parent:

0:c9112f0c67e3

Commit message:

Added header file

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/stm32746g_discovery_sd.c	Thu Oct 27 10:05:07 2016 +0000
@@ -0,0 +1,596 @@
+/**
+  ******************************************************************************
+  * @file    stm32746g_discovery_sd.c
+  * @author  MCD Application Team
+  * @version V1.0.0
+  * @date    25-June-2015
+  * @brief   This file includes the uSD card driver mounted on STM32746G-Discovery
+  *          board.
+  @verbatim
+   1. How To use this driver:
+   --------------------------
+      - This driver is used to drive the micro SD external card mounted on STM32746G-Discovery
+        board.
+      - This driver does not need a specific component driver for the micro SD device
+        to be included with.
+   
+   2. Driver description:
+   ---------------------
+     + Initialization steps:
+        o Initialize the micro SD card using the BSP_SD_Init() function. This 
+          function includes the MSP layer hardware resources initialization and the
+          SDIO interface configuration to interface with the external micro SD. It 
+          also includes the micro SD initialization sequence.
+        o To check the SD card presence you can use the function BSP_SD_IsDetected() which 
+          returns the detection status 
+        o If SD presence detection interrupt mode is desired, you must configure the 
+          SD detection interrupt mode by calling the function BSP_SD_ITConfig(). The interrupt 
+          is generated as an external interrupt whenever the micro SD card is 
+          plugged/unplugged in/from the board.
+        o The function BSP_SD_GetCardInfo() is used to get the micro SD card information 
+          which is stored in the structure "HAL_SD_CardInfoTypedef".
+     
+     + Micro SD card operations
+        o The micro SD card can be accessed with read/write block(s) operations once 
+          it is ready for access. The access can be performed whether using the polling
+          mode by calling the functions BSP_SD_ReadBlocks()/BSP_SD_WriteBlocks(), or by DMA 
+          transfer using the functions BSP_SD_ReadBlocks_DMA()/BSP_SD_WriteBlocks_DMA()
+        o The DMA transfer complete is used with interrupt mode. Once the SD transfer
+          is complete, the SD interrupt is handled using the function BSP_SD_IRQHandler(),
+          the DMA Tx/Rx transfer complete are handled using the functions
+          BSP_SD_DMA_Tx_IRQHandler()/BSP_SD_DMA_Rx_IRQHandler(). The corresponding user callbacks 
+          are implemented by the user at application level. 
+        o The SD erase block(s) is performed using the function BSP_SD_Erase() with specifying
+          the number of blocks to erase.
+        o The SD runtime status is returned when calling the function BSP_SD_GetStatus().
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32746g_discovery_sd.h"
+
+/** @addtogroup BSP
+  * @{
+  */
+
+/** @addtogroup STM32746G_DISCOVERY
+  * @{
+  */ 
+  
+/** @defgroup STM32746G_DISCOVERY_SD STM32746G_DISCOVERY_SD
+  * @{
+  */ 
+
+
+/** @defgroup STM32746G_DISCOVERY_SD_Private_TypesDefinitions STM32746G_DISCOVERY_SD Private Types Definitions
+  * @{
+  */
+/**
+  * @}
+  */ 
+
+/** @defgroup STM32746G_DISCOVERY_SD_Private_Defines STM32746G_DISCOVERY_SD Private Defines
+  * @{
+  */
+/**
+  * @}
+  */ 
+  
+/** @defgroup STM32746G_DISCOVERY_SD_Private_Macros STM32746G_DISCOVERY_SD Private Macros
+  * @{
+  */    
+/**
+  * @}
+  */  
+
+/** @defgroup STM32746G_DISCOVERY_SD_Private_Variables STM32746G_DISCOVERY_SD Private Variables
+  * @{
+  */
+static SD_HandleTypeDef uSdHandle;
+static SD_CardInfo      uSdCardInfo;
+
+/**
+  * @}
+  */ 
+  
+/** @defgroup STM32746G_DISCOVERY_SD_Private_FunctionPrototypes STM32746G_DISCOVERY_SD Private Function Prototypes
+  * @{
+  */
+/**
+  * @}
+  */ 
+  
+/** @defgroup STM32746G_DISCOVERY_SD_Exported_Functions STM32746G_DISCOVERY_SD Exported Functions
+  * @{
+  */
+
+/**
+  * @brief  Initializes the SD card device.
+  * @retval SD status
+  */
+uint8_t BSP_SD_Init(void)
+{ 
+  uint8_t sd_state = MSD_OK;
+  
+  /* uSD device interface configuration */
+  uSdHandle.Instance = SDMMC1;
+
+  uSdHandle.Init.ClockEdge           = SDMMC_CLOCK_EDGE_RISING;
+  uSdHandle.Init.ClockBypass         = SDMMC_CLOCK_BYPASS_DISABLE;
+  uSdHandle.Init.ClockPowerSave      = SDMMC_CLOCK_POWER_SAVE_DISABLE;
+  uSdHandle.Init.BusWide             = SDMMC_BUS_WIDE_1B;
+  uSdHandle.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_DISABLE;
+  uSdHandle.Init.ClockDiv            = SDMMC_TRANSFER_CLK_DIV;
+  
+  /* Msp SD Detect pin initialization */
+  BSP_SD_Detect_MspInit(&uSdHandle, NULL);
+  if(BSP_SD_IsDetected() != SD_PRESENT)   /* Check if SD card is present */
+  {
+    return MSD_ERROR_SD_NOT_PRESENT;
+  }
+  
+  /* Msp SD initialization */
+  BSP_SD_MspInit(&uSdHandle, NULL);
+
+  /* HAL SD initialization */
+  if(HAL_SD_Init(&uSdHandle, &uSdCardInfo) != SD_OK)
+  {
+    sd_state = MSD_ERROR;
+  }
+  
+  /* Configure SD Bus width */
+  if(sd_state == MSD_OK)
+  {
+    /* Enable wide operation */
+    if(HAL_SD_WideBusOperation_Config(&uSdHandle, SDMMC_BUS_WIDE_4B) != SD_OK)
+    {
+      sd_state = MSD_ERROR;
+    }
+    else
+    {
+      sd_state = MSD_OK;
+    }
+  }
+  
+  return  sd_state;
+}
+
+/**
+  * @brief  DeInitializes the SD card device.
+  * @retval SD status
+  */
+uint8_t BSP_SD_DeInit(void)
+{ 
+  uint8_t sd_state = MSD_OK;
+ 
+  uSdHandle.Instance = SDMMC1;
+  
+  /* HAL SD deinitialization */
+  if(HAL_SD_DeInit(&uSdHandle) != HAL_OK)
+  {
+    sd_state = MSD_ERROR;
+  }
+
+  /* Msp SD deinitialization */
+  uSdHandle.Instance = SDMMC1;
+  BSP_SD_MspDeInit(&uSdHandle, NULL);
+  
+  return  sd_state;
+}
+
+/**
+  * @brief  Configures Interrupt mode for SD detection pin.
+  * @retval Returns MSD_OK
+  */
+uint8_t BSP_SD_ITConfig(void)
+{  
+  GPIO_InitTypeDef gpio_init_structure;
+
+  /* Configure Interrupt mode for SD detection pin */  
+  gpio_init_structure.Pin = SD_DETECT_PIN;
+  gpio_init_structure.Pull = GPIO_PULLUP;
+  gpio_init_structure.Speed = GPIO_SPEED_FAST;
+  gpio_init_structure.Mode = GPIO_MODE_IT_RISING_FALLING;
+  HAL_GPIO_Init(SD_DETECT_GPIO_PORT, &gpio_init_structure);
+
+  /* Enable and set SD detect EXTI Interrupt to the lowest priority */
+  HAL_NVIC_SetPriority((IRQn_Type)(SD_DETECT_EXTI_IRQn), 0x0F, 0x00);
+  HAL_NVIC_EnableIRQ((IRQn_Type)(SD_DETECT_EXTI_IRQn));
+
+  return MSD_OK;
+}
+
+/**
+  * @brief  Detects if SD card is correctly plugged in the memory slot or not.
+  * @retval Returns if SD is detected or not
+  */
+uint8_t BSP_SD_IsDetected(void)
+{
+  __IO uint8_t      status = SD_PRESENT;
+  
+  /* Check SD card detect pin */
+  if (HAL_GPIO_ReadPin(SD_DETECT_GPIO_PORT, SD_DETECT_PIN) == GPIO_PIN_SET)
+  {
+    status = SD_NOT_PRESENT;
+  }
+
+  return status;
+}
+
+/**
+  * @brief  Reads block(s) from a specified address in an SD card, in polling mode.
+  * @param  pData: Pointer to the buffer that will contain the data to transmit
+  * @param  ReadAddr: Address from where data is to be read  
+  * @param  BlockSize: SD card data block size, that should be 512
+  * @param  NumOfBlocks: Number of SD blocks to read 
+  * @retval SD status
+  */
+uint8_t BSP_SD_ReadBlocks(uint32_t *pData, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumOfBlocks)
+{
+  if(HAL_SD_ReadBlocks(&uSdHandle, pData, ReadAddr, BlockSize, NumOfBlocks) != SD_OK)
+  {
+    return MSD_ERROR;
+  }
+  else
+  {
+    return MSD_OK;
+  }
+}
+
+/**
+  * @brief  Writes block(s) to a specified address in an SD card, in polling mode. 
+  * @param  pData: Pointer to the buffer that will contain the data to transmit
+  * @param  WriteAddr: Address from where data is to be written  
+  * @param  BlockSize: SD card data block size, that should be 512
+  * @param  NumOfBlocks: Number of SD blocks to write
+  * @retval SD status
+  */
+uint8_t BSP_SD_WriteBlocks(uint32_t *pData, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumOfBlocks)
+{
+  if(HAL_SD_WriteBlocks(&uSdHandle, pData, WriteAddr, BlockSize, NumOfBlocks) != SD_OK)
+  {
+    return MSD_ERROR;
+  }
+  else
+  {
+    return MSD_OK;
+  }
+}
+
+/**
+  * @brief  Reads block(s) from a specified address in an SD card, in DMA mode.
+  * @param  pData: Pointer to the buffer that will contain the data to transmit
+  * @param  ReadAddr: Address from where data is to be read  
+  * @param  BlockSize: SD card data block size, that should be 512
+  * @param  NumOfBlocks: Number of SD blocks to read 
+  * @retval SD status
+  */
+uint8_t BSP_SD_ReadBlocks_DMA(uint32_t *pData, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumOfBlocks)
+{
+  uint8_t sd_state = MSD_OK;
+  
+  /* Read block(s) in DMA transfer mode */
+  if(HAL_SD_ReadBlocks_DMA(&uSdHandle, pData, ReadAddr, BlockSize, NumOfBlocks) != SD_OK)
+  {
+    sd_state = MSD_ERROR;
+  }
+  
+  /* Wait until transfer is complete */
+  if(sd_state == MSD_OK)
+  {
+    if(HAL_SD_CheckReadOperation(&uSdHandle, (uint32_t)SD_DATATIMEOUT) != SD_OK)
+    {
+      sd_state = MSD_ERROR;
+    }
+    else
+    {
+      sd_state = MSD_OK;
+    }
+  }
+  
+  return sd_state;
+}
+
+/**
+  * @brief  Writes block(s) to a specified address in an SD card, in DMA mode.
+  * @param  pData: Pointer to the buffer that will contain the data to transmit
+  * @param  WriteAddr: Address from where data is to be written  
+  * @param  BlockSize: SD card data block size, that should be 512
+  * @param  NumOfBlocks: Number of SD blocks to write 
+  * @retval SD status
+  */
+uint8_t BSP_SD_WriteBlocks_DMA(uint32_t *pData, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumOfBlocks)
+{
+  uint8_t sd_state = MSD_OK;
+  
+  /* Write block(s) in DMA transfer mode */
+  if(HAL_SD_WriteBlocks_DMA(&uSdHandle, pData, WriteAddr, BlockSize, NumOfBlocks) != SD_OK)
+  {
+    sd_state = MSD_ERROR;
+  }
+  
+  /* Wait until transfer is complete */
+  if(sd_state == MSD_OK)
+  {
+    if(HAL_SD_CheckWriteOperation(&uSdHandle, (uint32_t)SD_DATATIMEOUT) != SD_OK)
+    {
+      sd_state = MSD_ERROR;
+    }
+    else
+    {
+      sd_state = MSD_OK;
+    }
+  }
+  
+  return sd_state;
+}
+
+/**
+  * @brief  Erases the specified memory area of the given SD card. 
+  * @param  StartAddr: Start byte address
+  * @param  EndAddr: End byte address
+  * @retval SD status
+  */
+uint8_t BSP_SD_Erase(uint64_t StartAddr, uint64_t EndAddr)
+{
+  if(HAL_SD_Erase(&uSdHandle, StartAddr, EndAddr) != SD_OK)
+  {
+    return MSD_ERROR;
+  }
+  else
+  {
+    return MSD_OK;
+  }
+}
+
+/**
+  * @brief  Initializes the SD MSP.
+  * @param  hsd: SD handle
+  * @param  Params
+  * @retval None
+  */
+__weak void BSP_SD_MspInit(SD_HandleTypeDef *hsd, void *Params)
+{
+  static DMA_HandleTypeDef dma_rx_handle;
+  static DMA_HandleTypeDef dma_tx_handle;
+  GPIO_InitTypeDef gpio_init_structure;
+
+  /* Enable SDIO clock */
+  __HAL_RCC_SDMMC1_CLK_ENABLE();
+  
+  /* Enable DMA2 clocks */
+  __DMAx_TxRx_CLK_ENABLE();
+
+  /* Enable GPIOs clock */
+  __HAL_RCC_GPIOC_CLK_ENABLE();
+  __HAL_RCC_GPIOD_CLK_ENABLE();
+  
+  /* Common GPIO configuration */
+  gpio_init_structure.Mode      = GPIO_MODE_AF_PP;
+  gpio_init_structure.Pull      = GPIO_PULLUP;
+  gpio_init_structure.Speed     = GPIO_SPEED_HIGH;
+  gpio_init_structure.Alternate = GPIO_AF12_SDMMC1;
+  
+  /* GPIOC configuration */
+  gpio_init_structure.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12;
+  HAL_GPIO_Init(GPIOC, &gpio_init_structure);
+
+  /* GPIOD configuration */
+  gpio_init_structure.Pin = GPIO_PIN_2;
+  HAL_GPIO_Init(GPIOD, &gpio_init_structure);
+
+  /* NVIC configuration for SDIO interrupts */
+  HAL_NVIC_SetPriority(SDMMC1_IRQn, 5, 0);
+  HAL_NVIC_EnableIRQ(SDMMC1_IRQn);
+    
+  /* Configure DMA Rx parameters */
+  dma_rx_handle.Init.Channel             = SD_DMAx_Rx_CHANNEL;
+  dma_rx_handle.Init.Direction           = DMA_PERIPH_TO_MEMORY;
+  dma_rx_handle.Init.PeriphInc           = DMA_PINC_DISABLE;
+  dma_rx_handle.Init.MemInc              = DMA_MINC_ENABLE;
+  dma_rx_handle.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
+  dma_rx_handle.Init.MemDataAlignment    = DMA_MDATAALIGN_WORD;
+  dma_rx_handle.Init.Mode                = DMA_PFCTRL;
+  dma_rx_handle.Init.Priority            = DMA_PRIORITY_VERY_HIGH;
+  dma_rx_handle.Init.FIFOMode            = DMA_FIFOMODE_ENABLE;
+  dma_rx_handle.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
+  dma_rx_handle.Init.MemBurst            = DMA_MBURST_INC4;
+  dma_rx_handle.Init.PeriphBurst         = DMA_PBURST_INC4;
+  
+  dma_rx_handle.Instance = SD_DMAx_Rx_STREAM;
+  
+  /* Associate the DMA handle */
+  __HAL_LINKDMA(hsd, hdmarx, dma_rx_handle);
+  
+  /* Deinitialize the stream for new transfer */
+  HAL_DMA_DeInit(&dma_rx_handle);
+  
+  /* Configure the DMA stream */
+  HAL_DMA_Init(&dma_rx_handle);
+  
+  /* Configure DMA Tx parameters */
+  dma_tx_handle.Init.Channel             = SD_DMAx_Tx_CHANNEL;
+  dma_tx_handle.Init.Direction           = DMA_MEMORY_TO_PERIPH;
+  dma_tx_handle.Init.PeriphInc           = DMA_PINC_DISABLE;
+  dma_tx_handle.Init.MemInc              = DMA_MINC_ENABLE;
+  dma_tx_handle.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
+  dma_tx_handle.Init.MemDataAlignment    = DMA_MDATAALIGN_WORD;
+  dma_tx_handle.Init.Mode                = DMA_PFCTRL;
+  dma_tx_handle.Init.Priority            = DMA_PRIORITY_VERY_HIGH;
+  dma_tx_handle.Init.FIFOMode            = DMA_FIFOMODE_ENABLE;
+  dma_tx_handle.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
+  dma_tx_handle.Init.MemBurst            = DMA_MBURST_INC4;
+  dma_tx_handle.Init.PeriphBurst         = DMA_PBURST_INC4;
+  
+  dma_tx_handle.Instance = SD_DMAx_Tx_STREAM;
+  
+  /* Associate the DMA handle */
+  __HAL_LINKDMA(hsd, hdmatx, dma_tx_handle);
+  
+  /* Deinitialize the stream for new transfer */
+  HAL_DMA_DeInit(&dma_tx_handle);
+  
+  /* Configure the DMA stream */
+  HAL_DMA_Init(&dma_tx_handle); 
+  
+  /* NVIC configuration for DMA transfer complete interrupt */
+  HAL_NVIC_SetPriority(SD_DMAx_Rx_IRQn, 6, 0);
+  HAL_NVIC_EnableIRQ(SD_DMAx_Rx_IRQn);
+  
+  /* NVIC configuration for DMA transfer complete interrupt */
+  HAL_NVIC_SetPriority(SD_DMAx_Tx_IRQn, 6, 0);
+  HAL_NVIC_EnableIRQ(SD_DMAx_Tx_IRQn);
+}
+
+/**
+  * @brief  Initializes the SD Detect pin MSP.
+  * @param  hsd: SD handle
+  * @param  Params
+  * @retval None
+  */
+__weak void BSP_SD_Detect_MspInit(SD_HandleTypeDef *hsd, void *Params)
+{
+  GPIO_InitTypeDef  gpio_init_structure;
+
+  SD_DETECT_GPIO_CLK_ENABLE();
+
+  /* GPIO configuration in input for uSD_Detect signal */
+  gpio_init_structure.Pin       = SD_DETECT_PIN;
+  gpio_init_structure.Mode      = GPIO_MODE_INPUT;
+  gpio_init_structure.Pull      = GPIO_PULLUP;
+  gpio_init_structure.Speed     = GPIO_SPEED_HIGH;
+  HAL_GPIO_Init(SD_DETECT_GPIO_PORT, &gpio_init_structure);
+}
+
+/**
+  * @brief  DeInitializes the SD MSP.
+  * @param  hsd: SD handle
+  * @param  Params
+  * @retval None
+  */
+__weak void BSP_SD_MspDeInit(SD_HandleTypeDef *hsd, void *Params)
+{
+  static DMA_HandleTypeDef dma_rx_handle;
+  static DMA_HandleTypeDef dma_tx_handle;
+
+  /* Disable NVIC for DMA transfer complete interrupts */
+  HAL_NVIC_DisableIRQ(SD_DMAx_Rx_IRQn);
+  HAL_NVIC_DisableIRQ(SD_DMAx_Tx_IRQn);
+
+  /* Deinitialize the stream for new transfer */
+  dma_rx_handle.Instance = SD_DMAx_Rx_STREAM;
+  HAL_DMA_DeInit(&dma_rx_handle);
+
+  /* Deinitialize the stream for new transfer */
+  dma_tx_handle.Instance = SD_DMAx_Tx_STREAM;
+  HAL_DMA_DeInit(&dma_tx_handle);
+
+  /* Disable NVIC for SDIO interrupts */
+  HAL_NVIC_DisableIRQ(SDMMC1_IRQn);
+
+  /* DeInit GPIO pins can be done in the application
+     (by surcharging this __weak function) */
+
+  /* Disable SDMMC1 clock */
+  __HAL_RCC_SDMMC1_CLK_DISABLE();
+
+  /* GPIO pins clock and DMA clocks can be shut down in the application
+     by surcharging this __weak function */
+}
+
+/**
+  * @brief  Handles SD card interrupt request.
+  * @retval None
+  */
+void BSP_SD_IRQHandler(void)
+{
+  HAL_SD_IRQHandler(&uSdHandle);
+}
+
+/**
+  * @brief  Handles SD DMA Tx transfer interrupt request.
+  * @retval None
+  */
+void BSP_SD_DMA_Tx_IRQHandler(void)
+{
+  HAL_DMA_IRQHandler(uSdHandle.hdmatx); 
+}
+
+/**
+  * @brief  Handles SD DMA Rx transfer interrupt request.
+  * @retval None
+  */
+void BSP_SD_DMA_Rx_IRQHandler(void)
+{
+  HAL_DMA_IRQHandler(uSdHandle.hdmarx);
+}
+
+/**
+  * @brief  Gets the current SD card data status.
+  * @retval Data transfer state.
+  *          This value can be one of the following values:
+  *            @arg  SD_TRANSFER_OK: No data transfer is acting
+  *            @arg  SD_TRANSFER_BUSY: Data transfer is acting
+  *            @arg  SD_TRANSFER_ERROR: Data transfer error 
+  */
+HAL_SD_TransferStateTypedef BSP_SD_GetStatus(void)
+{
+  return(HAL_SD_GetStatus(&uSdHandle));
+}
+
+/**
+  * @brief  Get SD information about specific SD card.
+  * @param  CardInfo: Pointer to HAL_SD_CardInfoTypedef structure
+  * @retval None 
+  */
+void BSP_SD_GetCardInfo(HAL_SD_CardInfoTypedef *CardInfo)
+{
+  /* Get SD card Information */
+  HAL_SD_Get_CardInfo(&uSdHandle, CardInfo);
+}
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/stm32746g_discovery_sd.h	Thu Oct 27 10:05:07 2016 +0000
@@ -0,0 +1,159 @@
+/**
+  ******************************************************************************
+  * @file    stm32746g_discovery_sd.h
+  * @author  MCD Application Team
+  * @version V1.0.0
+  * @date    25-June-2015
+  * @brief   This file contains the common defines and functions prototypes for
+  *          the stm32746g_discovery_sd.c driver.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32746G_DISCOVERY_SD_H
+#define __STM32746G_DISCOVERY_SD_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif 
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32746g_discovery.h"
+
+/** @addtogroup BSP
+  * @{
+  */ 
+
+/** @addtogroup STM32746G_DISCOVERY
+  * @{
+  */
+    
+/** @addtogroup STM32746G_DISCOVERY_SD
+  * @{
+  */    
+
+/** @defgroup STM32746G_DISCOVERY_SD_Exported_Types STM32746G_DISCOVERY_SD Exported Types
+  * @{
+  */
+
+/** 
+  * @brief SD Card information structure 
+  */
+#define SD_CardInfo HAL_SD_CardInfoTypedef
+/**
+  * @}
+  */
+   
+/** 
+  * @brief  SD status structure definition  
+  */     
+#define MSD_OK                        ((uint8_t)0x00)
+#define MSD_ERROR                     ((uint8_t)0x01)
+#define MSD_ERROR_SD_NOT_PRESENT      ((uint8_t)0x02)
+   
+/** @defgroup STM32746G_DISCOVERY_SD_Exported_Constants STM32746G_DISCOVERY_SD Exported Constants
+  * @{
+  */ 
+#define SD_PRESENT               ((uint8_t)0x01)
+#define SD_NOT_PRESENT           ((uint8_t)0x00)
+
+#define SD_DATATIMEOUT           ((uint32_t)100000000)
+    
+/* DMA definitions for SD DMA transfer */
+#define __DMAx_TxRx_CLK_ENABLE            __HAL_RCC_DMA2_CLK_ENABLE
+#define SD_DMAx_Tx_CHANNEL                DMA_CHANNEL_4
+#define SD_DMAx_Rx_CHANNEL                DMA_CHANNEL_4
+#define SD_DMAx_Tx_STREAM                 DMA2_Stream6  
+#define SD_DMAx_Rx_STREAM                 DMA2_Stream3  
+#define SD_DMAx_Tx_IRQn                   DMA2_Stream6_IRQn
+#define SD_DMAx_Rx_IRQn                   DMA2_Stream3_IRQn
+#define SD_DMAx_Tx_IRQHandler             DMA2_Stream6_IRQHandler   
+#define SD_DMAx_Rx_IRQHandler             DMA2_Stream3_IRQHandler 
+#define SD_DetectIRQHandler()             HAL_GPIO_EXTI_IRQHandler(SD_DETECT_PIN)
+/**
+  * @}
+  */
+  
+/** @defgroup STM32746G_DISCOVERY_SD_Exported_Macro STM32746G_DISCOVERY_SD Exported Macro
+  * @{
+  */ 
+/**
+  * @}
+  */
+   
+/** @addtogroup STM32746G_DISCOVERY_SD_Exported_Functions
+  * @{
+  */   
+uint8_t BSP_SD_Init(void);
+uint8_t BSP_SD_DeInit(void);
+uint8_t BSP_SD_ITConfig(void);
+void    BSP_SD_DetectIT(void);
+void    BSP_SD_DetectCallback(void);
+uint8_t BSP_SD_ReadBlocks(uint32_t *pData, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumOfBlocks);
+uint8_t BSP_SD_WriteBlocks(uint32_t *pData, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumOfBlocks);
+uint8_t BSP_SD_ReadBlocks_DMA(uint32_t *pData, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumOfBlocks);
+uint8_t BSP_SD_WriteBlocks_DMA(uint32_t *pData, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumOfBlocks);
+uint8_t BSP_SD_Erase(uint64_t StartAddr, uint64_t EndAddr);
+void    BSP_SD_IRQHandler(void);
+void    BSP_SD_DMA_Tx_IRQHandler(void);
+void    BSP_SD_DMA_Rx_IRQHandler(void);
+HAL_SD_TransferStateTypedef BSP_SD_GetStatus(void);
+void    BSP_SD_GetCardInfo(HAL_SD_CardInfoTypedef *CardInfo);
+uint8_t BSP_SD_IsDetected(void);
+
+/* These functions can be modified in case the current settings (e.g. DMA stream)
+   need to be changed for specific application needs */
+void    BSP_SD_MspInit(SD_HandleTypeDef *hsd, void *Params);
+void    BSP_SD_Detect_MspInit(SD_HandleTypeDef *hsd, void *Params);
+void    BSP_SD_MspDeInit(SD_HandleTypeDef *hsd, void *Params);
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32746G_DISCOVERY_SD_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/