STM32F429I-Discovery BSP User Manual: stm32f429i_discovery_sdram.h Source File

STM32F429I Discovery BSP Drivers

stm32f429i_discovery_sdram.h
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00001 /**
00002   ******************************************************************************
00003   * @file    stm32f429i_discovery_sdram.h
00004   * @author  MCD Application Team
00005   * @version V2.1.3
00006   * @date    13-January-2016
00007   * @brief   This file contains all the functions prototypes for the 
00008   *          stm32f429i_discovery_sdram.c driver.
00009   ******************************************************************************
00010   * @attention
00011   *
00012   * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
00013   *
00014   * Redistribution and use in source and binary forms, with or without modification,
00015   * are permitted provided that the following conditions are met:
00016   *   1. Redistributions of source code must retain the above copyright notice,
00017   *      this list of conditions and the following disclaimer.
00018   *   2. Redistributions in binary form must reproduce the above copyright notice,
00019   *      this list of conditions and the following disclaimer in the documentation
00020   *      and/or other materials provided with the distribution.
00021   *   3. Neither the name of STMicroelectronics nor the names of its contributors
00022   *      may be used to endorse or promote products derived from this software
00023   *      without specific prior written permission.
00024   *
00025   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00026   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00027   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00028   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
00029   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00030   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00031   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00032   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00033   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00034   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00035   *
00036   ******************************************************************************
00037   */   
00038 
00039 /* Define to prevent recursive inclusion -------------------------------------*/
00040 #ifndef __STM32F429I_DISCOVERY_SDRAM_H
00041 #define __STM32F429I_DISCOVERY_SDRAM_H
00042 
00043 #ifdef __cplusplus
00044  extern "C" {
00045 #endif
00046 
00047 /* Includes ------------------------------------------------------------------*/
00048 #include "stm32f429i_discovery.h"
00049 
00050 /** @addtogroup BSP
00051   * @{
00052   */
00053   
00054 /** @addtogroup STM32F429I_DISCOVERY
00055   * @{
00056   */
00057  
00058 /** @addtogroup STM32F429I_DISCOVERY_SDRAM
00059   * @{
00060   */
00061   
00062 /** @defgroup STM32F429I_DISCOVERY_SDRAM_Exported_Types STM32F429I DISCOVERY SDRAM Exported Types
00063   * @{
00064   */
00065 /**
00066   * @}
00067   */
00068 
00069 /** @defgroup STM32F429I_DISCOVERY_SDRAM_Exported_Constants STM32F429I DISCOVERY SDRAM Exported Constants
00070   * @{
00071   */ 
00072 /**
00073   * @brief  FMC SDRAM Bank address
00074   */   
00075 #define SDRAM_DEVICE_ADDR         ((uint32_t)0xD0000000)
00076 #define SDRAM_DEVICE_SIZE         ((uint32_t)0x800000)  /* SDRAM device size in MBytes */
00077   
00078 /**
00079   * @brief  FMC SDRAM Memory Width
00080   */  
00081 /* #define SDRAM_MEMORY_WIDTH   FMC_SDRAM_MEM_BUS_WIDTH_8 */
00082 #define SDRAM_MEMORY_WIDTH      FMC_SDRAM_MEM_BUS_WIDTH_16
00083 
00084 /**
00085   * @brief  FMC SDRAM CAS Latency
00086   */  
00087 /* #define SDRAM_CAS_LATENCY    FMC_SDRAM_CAS_LATENCY_2 */
00088 #define SDRAM_CAS_LATENCY       FMC_SDRAM_CAS_LATENCY_3 
00089 
00090 /**
00091   * @brief  FMC SDRAM Memory clock period
00092   */  
00093 #define SDCLOCK_PERIOD          FMC_SDRAM_CLOCK_PERIOD_2    /* Default configuration used with LCD */
00094 /* #define SDCLOCK_PERIOD       FMC_SDRAM_CLOCK_PERIOD_3 */
00095 
00096 /**
00097   * @brief  FMC SDRAM Memory Read Burst feature
00098   */  
00099 #define SDRAM_READBURST         FMC_SDRAM_RBURST_DISABLE    /* Default configuration used with LCD */
00100 /* #define SDRAM_READBURST      FMC_SDRAM_RBURST_ENABLE */
00101 
00102 /**
00103   * @brief  FMC SDRAM Bank Remap
00104   */    
00105 /* #define SDRAM_BANK_REMAP */
00106 
00107 /* Set the refresh rate counter */
00108 /* (15.62 us x Freq) - 20 */
00109 #define REFRESH_COUNT           ((uint32_t)1386)   /* SDRAM refresh counter */
00110 #define SDRAM_TIMEOUT           ((uint32_t)0xFFFF)
00111 
00112 /* DMA definitions for SDRAM DMA transfer */
00113 #define __DMAx_CLK_ENABLE       __DMA2_CLK_ENABLE
00114 #define SDRAM_DMAx_CHANNEL      DMA_CHANNEL_0
00115 #define SDRAM_DMAx_STREAM       DMA2_Stream0
00116 #define SDRAM_DMAx_IRQn         DMA2_Stream0_IRQn
00117 #define SDRAM_DMAx_IRQHandler   DMA2_Stream0_IRQHandler
00118 
00119 /**
00120   * @brief  FMC SDRAM Mode definition register defines
00121   */
00122 #define SDRAM_MODEREG_BURST_LENGTH_1             ((uint16_t)0x0000)
00123 #define SDRAM_MODEREG_BURST_LENGTH_2             ((uint16_t)0x0001)
00124 #define SDRAM_MODEREG_BURST_LENGTH_4             ((uint16_t)0x0002)
00125 #define SDRAM_MODEREG_BURST_LENGTH_8             ((uint16_t)0x0004)
00126 #define SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL      ((uint16_t)0x0000)
00127 #define SDRAM_MODEREG_BURST_TYPE_INTERLEAVED     ((uint16_t)0x0008)
00128 #define SDRAM_MODEREG_CAS_LATENCY_2              ((uint16_t)0x0020)
00129 #define SDRAM_MODEREG_CAS_LATENCY_3              ((uint16_t)0x0030)
00130 #define SDRAM_MODEREG_OPERATING_MODE_STANDARD    ((uint16_t)0x0000)
00131 #define SDRAM_MODEREG_WRITEBURST_MODE_PROGRAMMED ((uint16_t)0x0000)
00132 #define SDRAM_MODEREG_WRITEBURST_MODE_SINGLE     ((uint16_t)0x0200)
00133 /**
00134   * @}
00135   */
00136   
00137 /** @defgroup STM32F429I_DISCOVERY_SDRAM_Exported_Macro STM32F429I DISCOVERY SDRAM Exported Macro
00138   * @{
00139   */
00140 /**
00141   * @}
00142   */ 
00143 
00144 /** @defgroup STM32F429I_DISCOVERY_SDRAM_Exported_Functions STM32F429I DISCOVERY SDRAM Exported Functions
00145   * @{
00146   */
00147 void              BSP_SDRAM_Init(void);
00148 void              BSP_SDRAM_Initialization_sequence(uint32_t RefreshCount);
00149 void              BSP_SDRAM_ReadData(uint32_t uwStartAddress, uint32_t* pData, uint32_t uwDataSize);
00150 void              BSP_SDRAM_ReadData_DMA(uint32_t uwStartAddress, uint32_t* pData, uint32_t uwDataSize);
00151 void              BSP_SDRAM_WriteData(uint32_t uwStartAddress, uint32_t* pData, uint32_t uwDataSize);
00152 void              BSP_SDRAM_WriteData_DMA(uint32_t uwStartAddress, uint32_t* pData, uint32_t uwDataSize);
00153 HAL_StatusTypeDef BSP_SDRAM_Sendcmd(FMC_SDRAM_CommandTypeDef *SdramCmd);
00154 void              BSP_SDRAM_DMA_IRQHandler(void);
00155 
00156 /**
00157   * @}
00158   */
00159 
00160 /**
00161   * @}
00162   */
00163 
00164 /**
00165   * @}
00166   */   
00167 
00168 /**
00169   * @}
00170   */
00171 
00172 #ifdef __cplusplus
00173 }
00174 #endif
00175 
00176 #endif /* __STM32F429I_DISCOVERY_SDRAM_H */
00177 
00178 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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