text: /**
    ******************************************************************************
    * @file    stm324x9i_eval_sram.h
    * @author  MCD Application Team
    * @version V2.0.4
    * @date    02-March-2015
    * @brief   This file contains the common defines and functions prototypes for
    *          the stm324x9i_eval_sram.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 __STM324x9I_EVAL_SRAM_H
  #define __STM324x9I_EVAL_SRAM_H
  
  #ifdef __cplusplus
   extern "C" {
  #endif 
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32f4xx_hal.h"
  
  /** @addtogroup BSP
    * @{
    */ 
  
  /** @addtogroup STM324x9I_EVAL
    * @{
    */
      
  /** @defgroup STM324x9I_EVAL_SRAM
    * @{
    */    
  
  /** @defgroup STM324x9I_EVAL_SRAM_Exported_Types
    * @{
    */
  /**
    * @}
    */
  
  /** @defgroup STM324x9I_EVAL_SRAM_Exported_Constants
    * @{
    */ 
  
  /** 
    * @brief  SRAM status structure definition  
    */     
  #define   SRAM_OK         0x00
  #define   SRAM_ERROR      0x01
  
  #define SRAM_DEVICE_ADDR  ((uint32_t)0x64000000)
  #define SRAM_DEVICE_SIZE  ((uint32_t)0x200000)  /* SRAM device size in MBytes */  
    
  /* #define SRAM_MEMORY_WIDTH    FMC_NORSRAM_MEM_BUS_WIDTH_8  */
  #define SRAM_MEMORY_WIDTH    FMC_NORSRAM_MEM_BUS_WIDTH_16
  
  #define SRAM_BURSTACCESS    FMC_BURST_ACCESS_MODE_DISABLE  
  /* #define SRAM_BURSTACCESS    FMC_BURST_ACCESS_MODE_ENABLE*/
    
  #define SRAM_WRITEBURST    FMC_WRITE_BURST_DISABLE  
  /* #define SRAM_WRITEBURST   FMC_WRITE_BURST_ENABLE */
   
  #define CONTINUOUSCLOCK_FEATURE    FMC_CONTINUOUS_CLOCK_SYNC_ONLY 
  /* #define CONTINUOUSCLOCK_FEATURE     FMC_CONTINUOUS_CLOCK_SYNC_ASYNC */ 
  
  /* DMA definitions for SRAM DMA transfer */
  #define __SRAM_DMAx_CLK_ENABLE            __DMA2_CLK_ENABLE
  #define SRAM_DMAx_CHANNEL                 DMA_CHANNEL_0
  #define SRAM_DMAx_STREAM                  DMA2_Stream0  
  #define SRAM_DMAx_IRQn                    DMA2_Stream0_IRQn
  #define SRAM_DMAx_IRQHandler              DMA2_Stream0_IRQHandler  
  /**
    * @}
    */ 
    
  /** @defgroup STM324x9I_EVAL_SRAM_Exported_Macro
    * @{
    */  
  /**
    * @}
    */ 
     
  /** @defgroup STM324x9I_EVAL_SRAM_Exported_Functions
    * @{
    */    
  uint8_t BSP_SRAM_Init(void);
  uint8_t BSP_SRAM_ReadData(uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize);
  uint8_t BSP_SRAM_ReadData_DMA(uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize);
  uint8_t BSP_SRAM_WriteData(uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize);
  uint8_t BSP_SRAM_WriteData_DMA(uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize);
  void    BSP_SRAM_DMA_IRQHandler(void);
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* __STM324x9I_EVAL_SRAM_H */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  