Based on user/ft/stm32-dev-bridge, without the project-specific build

directories (and duplicated code).

1 files changed, 842 insertions, 0 deletions

diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sdram.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sdram.c
new file mode 100644
index 0000000..375293e
--- /dev/null
+++ b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sdram.c
@@ -0,0 +1,842 @@
+/**
+  ******************************************************************************
+  * @file    stm32f4xx_hal_sdram.c
+  * @author  MCD Application Team
+  * @version V1.3.2
+  * @date    26-June-2015
+  * @brief   SDRAM HAL module driver.
+  *          This file provides a generic firmware to drive SDRAM memories mounted
+  *          as external device.
+  *
+  @verbatim
+  ==============================================================================
+                       ##### How to use this driver #####
+  ==============================================================================
+  [..]
+    This driver is a generic layered driver which contains a set of APIs used to
+    control SDRAM memories. It uses the FMC layer functions to interface
+    with SDRAM devices.
+    The following sequence should be followed to configure the FMC to interface
+    with SDRAM memories:
+
+   (#) Declare a SDRAM_HandleTypeDef handle structure, for example:
+          SDRAM_HandleTypeDef  hdsram
+
+       (++) Fill the SDRAM_HandleTypeDef handle "Init" field with the allowed
+            values of the structure member.
+
+       (++) Fill the SDRAM_HandleTypeDef handle "Instance" field with a predefined
+            base register instance for NOR or SDRAM device
+
+   (#) Declare a FMC_SDRAM_TimingTypeDef structure; for example:
+          FMC_SDRAM_TimingTypeDef  Timing;
+      and fill its fields with the allowed values of the structure member.
+
+   (#) Initialize the SDRAM Controller by calling the function HAL_SDRAM_Init(). This function
+       performs the following sequence:
+
+       (##) MSP hardware layer configuration using the function HAL_SDRAM_MspInit()
+       (##) Control register configuration using the FMC SDRAM interface function
+            FMC_SDRAM_Init()
+       (##) Timing register configuration using the FMC SDRAM interface function
+            FMC_SDRAM_Timing_Init()
+       (##) Program the SDRAM external device by applying its initialization sequence
+            according to the device plugged in your hardware. This step is mandatory
+            for accessing the SDRAM device.
+
+   (#) At this stage you can perform read/write accesses from/to the memory connected
+       to the SDRAM Bank. You can perform either polling or DMA transfer using the
+       following APIs:
+       (++) HAL_SDRAM_Read()/HAL_SDRAM_Write() for polling read/write access
+       (++) HAL_SDRAM_Read_DMA()/HAL_SDRAM_Write_DMA() for DMA read/write transfer
+
+   (#) You can also control the SDRAM device by calling the control APIs HAL_SDRAM_WriteOperation_Enable()/
+       HAL_SDRAM_WriteOperation_Disable() to respectively enable/disable the SDRAM write operation or
+       the function HAL_SDRAM_SendCommand() to send a specified command to the SDRAM
+       device. The command to be sent must be configured with the FMC_SDRAM_CommandTypeDef
+       structure.
+
+   (#) You can continuously monitor the SDRAM device HAL state by calling the function
+       HAL_SDRAM_GetState()
+
+  @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 "stm32f4xx_hal.h"
+
+/** @addtogroup STM32F4xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup SDRAM SDRAM
+  * @brief SDRAM driver modules
+  * @{
+  */
+#ifdef HAL_SDRAM_MODULE_ENABLED
+#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || defined(STM32F446xx)
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+/* Exported functions --------------------------------------------------------*/
+/** @defgroup SDRAM_Exported_Functions SDRAM Exported Functions
+  * @{
+  */
+
+/** @defgroup SDRAM_Exported_Functions_Group1 Initialization and de-initialization functions
+  * @brief    Initialization and Configuration functions
+  *
+  @verbatim
+  ==============================================================================
+           ##### SDRAM Initialization and de_initialization functions #####
+  ==============================================================================
+  [..]
+    This section provides functions allowing to initialize/de-initialize
+    the SDRAM memory
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Performs the SDRAM device initialization sequence.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  Timing: Pointer to SDRAM control timing structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_Init(SDRAM_HandleTypeDef *hsdram, FMC_SDRAM_TimingTypeDef *Timing)
+{
+  /* Check the SDRAM handle parameter */
+  if(hsdram == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  if(hsdram->State == HAL_SDRAM_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    hsdram->Lock = HAL_UNLOCKED;
+    /* Initialize the low level hardware (MSP) */
+    HAL_SDRAM_MspInit(hsdram);
+  }
+
+  /* Initialize the SDRAM controller state */
+  hsdram->State = HAL_SDRAM_STATE_BUSY;
+
+  /* Initialize SDRAM control Interface */
+  FMC_SDRAM_Init(hsdram->Instance, &(hsdram->Init));
+
+  /* Initialize SDRAM timing Interface */
+  FMC_SDRAM_Timing_Init(hsdram->Instance, Timing, hsdram->Init.SDBank);
+
+  /* Update the SDRAM controller state */
+  hsdram->State = HAL_SDRAM_STATE_READY;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Perform the SDRAM device initialization sequence.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_DeInit(SDRAM_HandleTypeDef *hsdram)
+{
+  /* Initialize the low level hardware (MSP) */
+  HAL_SDRAM_MspDeInit(hsdram);
+
+  /* Configure the SDRAM registers with their reset values */
+  FMC_SDRAM_DeInit(hsdram->Instance, hsdram->Init.SDBank);
+
+  /* Reset the SDRAM controller state */
+  hsdram->State = HAL_SDRAM_STATE_RESET;
+
+  /* Release Lock */
+  __HAL_UNLOCK(hsdram);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  SDRAM MSP Init.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @retval None
+  */
+__weak void HAL_SDRAM_MspInit(SDRAM_HandleTypeDef *hsdram)
+{
+  /* NOTE: This function Should not be modified, when the callback is needed,
+            the HAL_SDRAM_MspInit could be implemented in the user file
+   */
+}
+
+/**
+  * @brief  SDRAM MSP DeInit.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @retval None
+  */
+__weak void HAL_SDRAM_MspDeInit(SDRAM_HandleTypeDef *hsdram)
+{
+  /* NOTE: This function Should not be modified, when the callback is needed,
+            the HAL_SDRAM_MspDeInit could be implemented in the user file
+   */
+}
+
+/**
+  * @brief  This function handles SDRAM refresh error interrupt request.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @retval HAL status
+*/
+void HAL_SDRAM_IRQHandler(SDRAM_HandleTypeDef *hsdram)
+{
+  /* Check SDRAM interrupt Rising edge flag */
+  if(__FMC_SDRAM_GET_FLAG(hsdram->Instance, FMC_SDRAM_FLAG_REFRESH_IT))
+  {
+    /* SDRAM refresh error interrupt callback */
+    HAL_SDRAM_RefreshErrorCallback(hsdram);
+
+    /* Clear SDRAM refresh error interrupt pending bit */
+    __FMC_SDRAM_CLEAR_FLAG(hsdram->Instance, FMC_SDRAM_FLAG_REFRESH_ERROR);
+  }
+}
+
+/**
+  * @brief  SDRAM Refresh error callback.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @retval None
+  */
+__weak void HAL_SDRAM_RefreshErrorCallback(SDRAM_HandleTypeDef *hsdram)
+{
+  /* NOTE: This function Should not be modified, when the callback is needed,
+            the HAL_SDRAM_RefreshErrorCallback could be implemented in the user file
+   */
+}
+
+/**
+  * @brief  DMA transfer complete callback.
+  * @param  hdma: pointer to a DMA_HandleTypeDef structure that contains
+  *                the configuration information for the specified DMA module.
+  * @retval None
+  */
+__weak void HAL_SDRAM_DMA_XferCpltCallback(DMA_HandleTypeDef *hdma)
+{
+  /* NOTE: This function Should not be modified, when the callback is needed,
+            the HAL_SDRAM_DMA_XferCpltCallback could be implemented in the user file
+   */
+}
+
+/**
+  * @brief  DMA transfer complete error callback.
+  * @param  hdma: DMA handle
+  * @retval None
+  */
+__weak void HAL_SDRAM_DMA_XferErrorCallback(DMA_HandleTypeDef *hdma)
+{
+  /* NOTE: This function Should not be modified, when the callback is needed,
+            the HAL_SDRAM_DMA_XferErrorCallback could be implemented in the user file
+   */
+}
+/**
+  * @}
+  */
+
+/** @defgroup SDRAM_Exported_Functions_Group2 Input and Output functions
+  * @brief    Input Output and memory control functions
+  *
+  @verbatim
+  ==============================================================================
+                    ##### SDRAM Input and Output functions #####
+  ==============================================================================
+  [..]
+    This section provides functions allowing to use and control the SDRAM memory
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Reads 8-bit data buffer from the SDRAM memory.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  pAddress: Pointer to read start address
+  * @param  pDstBuffer: Pointer to destination buffer
+  * @param  BufferSize: Size of the buffer to read from memory
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_Read_8b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint8_t *pDstBuffer, uint32_t BufferSize)
+{
+  __IO uint8_t *pSdramAddress = (uint8_t *)pAddress;
+
+  /* Process Locked */
+  __HAL_LOCK(hsdram);
+
+  /* Check the SDRAM controller state */
+  if(hsdram->State == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+  else if(hsdram->State == HAL_SDRAM_STATE_PRECHARGED)
+  {
+    return  HAL_ERROR;
+  }
+
+  /* Read data from source */
+  for(; BufferSize != 0; BufferSize--)
+  {
+    *pDstBuffer = *(__IO uint8_t *)pSdramAddress;
+    pDstBuffer++;
+    pSdramAddress++;
+  }
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(hsdram);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Writes 8-bit data buffer to SDRAM memory.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  pAddress: Pointer to write start address
+  * @param  pSrcBuffer: Pointer to source buffer to write
+  * @param  BufferSize: Size of the buffer to write to memory
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_Write_8b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint8_t *pSrcBuffer, uint32_t BufferSize)
+{
+  __IO uint8_t *pSdramAddress = (uint8_t *)pAddress;
+  uint32_t tmp = 0;
+
+  /* Process Locked */
+  __HAL_LOCK(hsdram);
+
+  /* Check the SDRAM controller state */
+  tmp = hsdram->State;
+
+  if(tmp == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+  else if((tmp == HAL_SDRAM_STATE_PRECHARGED) || (tmp == HAL_SDRAM_STATE_WRITE_PROTECTED))
+  {
+    return  HAL_ERROR;
+  }
+
+  /* Write data to memory */
+  for(; BufferSize != 0; BufferSize--)
+  {
+    *(__IO uint8_t *)pSdramAddress = *pSrcBuffer;
+    pSrcBuffer++;
+    pSdramAddress++;
+  }
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(hsdram);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Reads 16-bit data buffer from the SDRAM memory.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  pAddress: Pointer to read start address
+  * @param  pDstBuffer: Pointer to destination buffer
+  * @param  BufferSize: Size of the buffer to read from memory
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_Read_16b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint16_t *pDstBuffer, uint32_t BufferSize)
+{
+  __IO uint16_t *pSdramAddress = (uint16_t *)pAddress;
+
+  /* Process Locked */
+  __HAL_LOCK(hsdram);
+
+  /* Check the SDRAM controller state */
+  if(hsdram->State == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+  else if(hsdram->State == HAL_SDRAM_STATE_PRECHARGED)
+  {
+    return  HAL_ERROR;
+  }
+
+  /* Read data from source */
+  for(; BufferSize != 0; BufferSize--)
+  {
+    *pDstBuffer = *(__IO uint16_t *)pSdramAddress;
+    pDstBuffer++;
+    pSdramAddress++;
+  }
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(hsdram);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Writes 16-bit data buffer to SDRAM memory.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  pAddress: Pointer to write start address
+  * @param  pSrcBuffer: Pointer to source buffer to write
+  * @param  BufferSize: Size of the buffer to write to memory
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_Write_16b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint16_t *pSrcBuffer, uint32_t BufferSize)
+{
+  __IO uint16_t *pSdramAddress = (uint16_t *)pAddress;
+  uint32_t tmp = 0;
+
+  /* Process Locked */
+  __HAL_LOCK(hsdram);
+
+  /* Check the SDRAM controller state */
+  tmp = hsdram->State;
+
+  if(tmp == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+  else if((tmp == HAL_SDRAM_STATE_PRECHARGED) || (tmp == HAL_SDRAM_STATE_WRITE_PROTECTED))
+  {
+    return  HAL_ERROR;
+  }
+
+  /* Write data to memory */
+  for(; BufferSize != 0; BufferSize--)
+  {
+    *(__IO uint16_t *)pSdramAddress = *pSrcBuffer;
+    pSrcBuffer++;
+    pSdramAddress++;
+  }
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(hsdram);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Reads 32-bit data buffer from the SDRAM memory.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  pAddress: Pointer to read start address
+  * @param  pDstBuffer: Pointer to destination buffer
+  * @param  BufferSize: Size of the buffer to read from memory
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_Read_32b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
+{
+  __IO uint32_t *pSdramAddress = (uint32_t *)pAddress;
+
+  /* Process Locked */
+  __HAL_LOCK(hsdram);
+
+  /* Check the SDRAM controller state */
+  if(hsdram->State == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+  else if(hsdram->State == HAL_SDRAM_STATE_PRECHARGED)
+  {
+    return  HAL_ERROR;
+  }
+
+  /* Read data from source */
+  for(; BufferSize != 0; BufferSize--)
+  {
+    *pDstBuffer = *(__IO uint32_t *)pSdramAddress;
+    pDstBuffer++;
+    pSdramAddress++;
+  }
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(hsdram);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Writes 32-bit data buffer to SDRAM memory.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  pAddress: Pointer to write start address
+  * @param  pSrcBuffer: Pointer to source buffer to write
+  * @param  BufferSize: Size of the buffer to write to memory
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_Write_32b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
+{
+  __IO uint32_t *pSdramAddress = (uint32_t *)pAddress;
+  uint32_t tmp = 0;
+
+  /* Process Locked */
+  __HAL_LOCK(hsdram);
+
+  /* Check the SDRAM controller state */
+  tmp = hsdram->State;
+
+  if(tmp == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+  else if((tmp == HAL_SDRAM_STATE_PRECHARGED) || (tmp == HAL_SDRAM_STATE_WRITE_PROTECTED))
+  {
+    return  HAL_ERROR;
+  }
+
+  /* Write data to memory */
+  for(; BufferSize != 0; BufferSize--)
+  {
+    *(__IO uint32_t *)pSdramAddress = *pSrcBuffer;
+    pSrcBuffer++;
+    pSdramAddress++;
+  }
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(hsdram);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Reads a Words data from the SDRAM memory using DMA transfer.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  pAddress: Pointer to read start address
+  * @param  pDstBuffer: Pointer to destination buffer
+  * @param  BufferSize: Size of the buffer to read from memory
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_Read_DMA(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize)
+{
+  uint32_t tmp = 0;
+
+  /* Process Locked */
+  __HAL_LOCK(hsdram);
+
+  /* Check the SDRAM controller state */
+  tmp = hsdram->State;
+
+  if(tmp == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+  else if(tmp == HAL_SDRAM_STATE_PRECHARGED)
+  {
+    return  HAL_ERROR;
+  }
+
+  /* Configure DMA user callbacks */
+  hsdram->hdma->XferCpltCallback  = HAL_SDRAM_DMA_XferCpltCallback;
+  hsdram->hdma->XferErrorCallback = HAL_SDRAM_DMA_XferErrorCallback;
+
+  /* Enable the DMA Stream */
+  HAL_DMA_Start_IT(hsdram->hdma, (uint32_t)pAddress, (uint32_t)pDstBuffer, (uint32_t)BufferSize);
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(hsdram);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Writes a Words data buffer to SDRAM memory using DMA transfer.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  pAddress: Pointer to write start address
+  * @param  pSrcBuffer: Pointer to source buffer to write
+  * @param  BufferSize: Size of the buffer to write to memory
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_Write_DMA(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize)
+{
+  uint32_t tmp = 0;
+
+  /* Process Locked */
+  __HAL_LOCK(hsdram);
+
+  /* Check the SDRAM controller state */
+  tmp = hsdram->State;
+
+  if(tmp == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+  else if((tmp == HAL_SDRAM_STATE_PRECHARGED) || (tmp == HAL_SDRAM_STATE_WRITE_PROTECTED))
+  {
+    return  HAL_ERROR;
+  }
+
+  /* Configure DMA user callbacks */
+  hsdram->hdma->XferCpltCallback  = HAL_SDRAM_DMA_XferCpltCallback;
+  hsdram->hdma->XferErrorCallback = HAL_SDRAM_DMA_XferErrorCallback;
+
+  /* Enable the DMA Stream */
+  HAL_DMA_Start_IT(hsdram->hdma, (uint32_t)pSrcBuffer, (uint32_t)pAddress, (uint32_t)BufferSize);
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(hsdram);
+
+  return HAL_OK;
+}
+/**
+  * @}
+  */
+
+/** @defgroup SDRAM_Exported_Functions_Group3 Control functions
+ *  @brief   management functions
+ *
+@verbatim
+  ==============================================================================
+                         ##### SDRAM Control functions #####
+  ==============================================================================
+  [..]
+    This subsection provides a set of functions allowing to control dynamically
+    the SDRAM interface.
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Enables dynamically SDRAM write protection.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_WriteProtection_Enable(SDRAM_HandleTypeDef *hsdram)
+{
+  /* Check the SDRAM controller state */
+  if(hsdram->State == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+
+  /* Update the SDRAM state */
+  hsdram->State = HAL_SDRAM_STATE_BUSY;
+
+  /* Enable write protection */
+  FMC_SDRAM_WriteProtection_Enable(hsdram->Instance, hsdram->Init.SDBank);
+
+  /* Update the SDRAM state */
+  hsdram->State = HAL_SDRAM_STATE_WRITE_PROTECTED;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Disables dynamically SDRAM write protection.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_WriteProtection_Disable(SDRAM_HandleTypeDef *hsdram)
+{
+  /* Check the SDRAM controller state */
+  if(hsdram->State == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+
+  /* Update the SDRAM state */
+  hsdram->State = HAL_SDRAM_STATE_BUSY;
+
+  /* Disable write protection */
+  FMC_SDRAM_WriteProtection_Disable(hsdram->Instance, hsdram->Init.SDBank);
+
+  /* Update the SDRAM state */
+  hsdram->State = HAL_SDRAM_STATE_READY;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Sends Command to the SDRAM bank.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  Command: SDRAM command structure
+  * @param  Timeout: Timeout duration
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_SendCommand(SDRAM_HandleTypeDef *hsdram, FMC_SDRAM_CommandTypeDef *Command, uint32_t Timeout)
+{
+  /* Check the SDRAM controller state */
+  if(hsdram->State == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+
+  /* Update the SDRAM state */
+  hsdram->State = HAL_SDRAM_STATE_BUSY;
+
+  /* Send SDRAM command */
+  FMC_SDRAM_SendCommand(hsdram->Instance, Command, Timeout);
+
+  /* Update the SDRAM controller state */
+  if(Command->CommandMode == FMC_SDRAM_CMD_PALL)
+  {
+    hsdram->State = HAL_SDRAM_STATE_PRECHARGED;
+  }
+  else
+  {
+    hsdram->State = HAL_SDRAM_STATE_READY;
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Programs the SDRAM Memory Refresh rate.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  RefreshRate: The SDRAM refresh rate value
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_ProgramRefreshRate(SDRAM_HandleTypeDef *hsdram, uint32_t RefreshRate)
+{
+  /* Check the SDRAM controller state */
+  if(hsdram->State == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+
+  /* Update the SDRAM state */
+  hsdram->State = HAL_SDRAM_STATE_BUSY;
+
+  /* Program the refresh rate */
+  FMC_SDRAM_ProgramRefreshRate(hsdram->Instance ,RefreshRate);
+
+  /* Update the SDRAM state */
+  hsdram->State = HAL_SDRAM_STATE_READY;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Sets the Number of consecutive SDRAM Memory auto Refresh commands.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @param  AutoRefreshNumber: The SDRAM auto Refresh number
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SDRAM_SetAutoRefreshNumber(SDRAM_HandleTypeDef *hsdram, uint32_t AutoRefreshNumber)
+{
+  /* Check the SDRAM controller state */
+  if(hsdram->State == HAL_SDRAM_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+
+  /* Update the SDRAM state */
+  hsdram->State = HAL_SDRAM_STATE_BUSY;
+
+  /* Set the Auto-Refresh number */
+  FMC_SDRAM_SetAutoRefreshNumber(hsdram->Instance ,AutoRefreshNumber);
+
+  /* Update the SDRAM state */
+  hsdram->State = HAL_SDRAM_STATE_READY;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Returns the SDRAM memory current mode.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @retval The SDRAM memory mode.
+  */
+uint32_t HAL_SDRAM_GetModeStatus(SDRAM_HandleTypeDef *hsdram)
+{
+  /* Return the SDRAM memory current mode */
+  return(FMC_SDRAM_GetModeStatus(hsdram->Instance, hsdram->Init.SDBank));
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup SDRAM_Exported_Functions_Group4 State functions
+ *  @brief   Peripheral State functions
+ *
+@verbatim
+  ==============================================================================
+                      ##### SDRAM State functions #####
+  ==============================================================================
+  [..]
+    This subsection permits to get in run-time the status of the SDRAM controller
+    and the data flow.
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Returns the SDRAM state.
+  * @param  hsdram: pointer to a SDRAM_HandleTypeDef structure that contains
+  *                the configuration information for SDRAM module.
+  * @retval HAL state
+  */
+HAL_SDRAM_StateTypeDef HAL_SDRAM_GetState(SDRAM_HandleTypeDef *hsdram)
+{
+  return hsdram->State;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx */
+#endif /* HAL_SDRAM_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/