view Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_sdram.h @ 623:ba83a8ef9bad

Improvment frame Handling: In previous version, especially during fast menu operations, from time to time a flicker (in case of cyclic updated views) or corrupted menus appeared. Possible root cause is a interferance in the chain: refresh display (~100ms) => release frame (in parallel to) provide frame (~45ms) => clear frame (~45ms). to improve the behaviour the clear frame loop is not iterated until all bufferes are cleared (before one buffer every~45ms). getFrame() does now iterate through all frame buffers instead reusing the first possible (to avoid ghoust views and to provide more time to housekeeping function for cleanup)
author Ideenmodellierer
date Sun, 07 Feb 2021 22:04:43 +0100
parents c78bcbd5deda
children
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/**
  ******************************************************************************
  * @file    stm32f4xx_hal_sdram.h
  * @author  MCD Application Team
  * @brief   Header file of SDRAM HAL module.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2017 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 __STM32F4xx_HAL_SDRAM_H
#define __STM32F4xx_HAL_SDRAM_H

#ifdef __cplusplus
 extern "C" {
#endif

#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\
    defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_ll_fmc.h"

/** @addtogroup STM32F4xx_HAL_Driver
  * @{
  */

/** @addtogroup SDRAM
  * @{
  */ 

/* Exported typedef ----------------------------------------------------------*/   
/** @defgroup SDRAM_Exported_Types SDRAM Exported Types
  * @{
  */

/** 
  * @brief  HAL SDRAM State structure definition  
  */ 
typedef enum
{
  HAL_SDRAM_STATE_RESET             = 0x00U,  /*!< SDRAM not yet initialized or disabled */
  HAL_SDRAM_STATE_READY             = 0x01U,  /*!< SDRAM initialized and ready for use   */
  HAL_SDRAM_STATE_BUSY              = 0x02U,  /*!< SDRAM internal process is ongoing     */
  HAL_SDRAM_STATE_ERROR             = 0x03U,  /*!< SDRAM error state                     */
  HAL_SDRAM_STATE_WRITE_PROTECTED   = 0x04U,  /*!< SDRAM device write protected          */
  HAL_SDRAM_STATE_PRECHARGED        = 0x05U   /*!< SDRAM device precharged               */
  
}HAL_SDRAM_StateTypeDef;

/** 
  * @brief  SDRAM handle Structure definition  
  */ 
typedef struct
{
  FMC_SDRAM_TypeDef             *Instance;  /*!< Register base address                 */
  
  FMC_SDRAM_InitTypeDef         Init;       /*!< SDRAM device configuration parameters */
  
  __IO HAL_SDRAM_StateTypeDef   State;      /*!< SDRAM access state                    */
  
  HAL_LockTypeDef               Lock;       /*!< SDRAM locking object                  */ 

  DMA_HandleTypeDef             *hdma;      /*!< Pointer DMA handler                   */
  
}SDRAM_HandleTypeDef;
/**
  * @}
  */

/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup SDRAM_Exported_Macros SDRAM Exported Macros
  * @{
  */

/** @brief Reset SDRAM handle state
  * @param  __HANDLE__ specifies the SDRAM handle.
  * @retval None
  */
#define __HAL_SDRAM_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_SDRAM_STATE_RESET)
/**
  * @}
  */

/* Exported functions --------------------------------------------------------*/
/** @addtogroup SDRAM_Exported_Functions SDRAM Exported Functions
  * @{
  */

/** @addtogroup SDRAM_Exported_Functions_Group1 
  * @{
  */

/* Initialization/de-initialization functions *********************************/
HAL_StatusTypeDef HAL_SDRAM_Init(SDRAM_HandleTypeDef *hsdram, FMC_SDRAM_TimingTypeDef *Timing);
HAL_StatusTypeDef HAL_SDRAM_DeInit(SDRAM_HandleTypeDef *hsdram);
void HAL_SDRAM_MspInit(SDRAM_HandleTypeDef *hsdram);
void HAL_SDRAM_MspDeInit(SDRAM_HandleTypeDef *hsdram);

void HAL_SDRAM_IRQHandler(SDRAM_HandleTypeDef *hsdram);
void HAL_SDRAM_RefreshErrorCallback(SDRAM_HandleTypeDef *hsdram);
void HAL_SDRAM_DMA_XferCpltCallback(DMA_HandleTypeDef *hdma);
void HAL_SDRAM_DMA_XferErrorCallback(DMA_HandleTypeDef *hdma);
/**
  * @}
  */

/** @addtogroup SDRAM_Exported_Functions_Group2 
  * @{
  */
/* I/O operation functions ****************************************************/
HAL_StatusTypeDef HAL_SDRAM_Read_8b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint8_t *pDstBuffer, uint32_t BufferSize);
HAL_StatusTypeDef HAL_SDRAM_Write_8b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint8_t *pSrcBuffer, uint32_t BufferSize);
HAL_StatusTypeDef HAL_SDRAM_Read_16b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint16_t *pDstBuffer, uint32_t BufferSize);
HAL_StatusTypeDef HAL_SDRAM_Write_16b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint16_t *pSrcBuffer, uint32_t BufferSize);
HAL_StatusTypeDef HAL_SDRAM_Read_32b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize);
HAL_StatusTypeDef HAL_SDRAM_Write_32b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize);

HAL_StatusTypeDef HAL_SDRAM_Read_DMA(SDRAM_HandleTypeDef *hsdram, uint32_t * pAddress, uint32_t *pDstBuffer, uint32_t BufferSize);
HAL_StatusTypeDef HAL_SDRAM_Write_DMA(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize);
/**
  * @}
  */
  
/** @addtogroup SDRAM_Exported_Functions_Group3 
  * @{
  */
/* SDRAM Control functions  *****************************************************/
HAL_StatusTypeDef HAL_SDRAM_WriteProtection_Enable(SDRAM_HandleTypeDef *hsdram);
HAL_StatusTypeDef HAL_SDRAM_WriteProtection_Disable(SDRAM_HandleTypeDef *hsdram);
HAL_StatusTypeDef HAL_SDRAM_SendCommand(SDRAM_HandleTypeDef *hsdram, FMC_SDRAM_CommandTypeDef *Command, uint32_t Timeout);
HAL_StatusTypeDef HAL_SDRAM_ProgramRefreshRate(SDRAM_HandleTypeDef *hsdram, uint32_t RefreshRate);
HAL_StatusTypeDef HAL_SDRAM_SetAutoRefreshNumber(SDRAM_HandleTypeDef *hsdram, uint32_t AutoRefreshNumber);
uint32_t          HAL_SDRAM_GetModeStatus(SDRAM_HandleTypeDef *hsdram);
/**
  * @}
  */

/** @addtogroup SDRAM_Exported_Functions_Group4 
  * @{
  */
/* SDRAM State functions ********************************************************/
HAL_SDRAM_StateTypeDef  HAL_SDRAM_GetState(SDRAM_HandleTypeDef *hsdram);
/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif /* __STM32F4xx_HAL_SDRAM_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/