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annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sdram.c @ 307:b6436edfb2c0 cleanup-4
cleanup: factor out unused stopwatch code
Visually, this looks a bit of a dangerous cleanup, but its not :-)
To explain this cleanup: stopwatch_seconds is never used, so assign
to it is useless, and the variable can be removed. Now,
stopwatch_start_at_this_dive_time_seconds is not used any more, so
remove it as well. Now, look at the boolResetStopwatch code. It
is used but only to reset itself. This makes the whole stopwatch
block in data_exchange_main.c a useless thing. All the other
cleanup is trivial.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
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date | Wed, 22 May 2019 22:22:15 +0200 |
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128
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1 /** |
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2 ****************************************************************************** |
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3 * @file stm32f4xx_hal_sdram.c |
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4 * @author MCD Application Team |
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5 * @brief SDRAM HAL module driver. |
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6 * This file provides a generic firmware to drive SDRAM memories mounted |
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7 * as external device. |
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8 * |
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9 @verbatim |
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10 ============================================================================== |
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11 ##### How to use this driver ##### |
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12 ============================================================================== |
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13 [..] |
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14 This driver is a generic layered driver which contains a set of APIs used to |
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15 control SDRAM memories. It uses the FMC layer functions to interface |
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16 with SDRAM devices. |
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17 The following sequence should be followed to configure the FMC to interface |
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18 with SDRAM memories: |
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19 |
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20 (#) Declare a SDRAM_HandleTypeDef handle structure, for example: |
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21 SDRAM_HandleTypeDef hdsram |
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22 |
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23 (++) Fill the SDRAM_HandleTypeDef handle "Init" field with the allowed |
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24 values of the structure member. |
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25 |
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26 (++) Fill the SDRAM_HandleTypeDef handle "Instance" field with a predefined |
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27 base register instance for NOR or SDRAM device |
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28 |
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29 (#) Declare a FMC_SDRAM_TimingTypeDef structure; for example: |
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30 FMC_SDRAM_TimingTypeDef Timing; |
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31 and fill its fields with the allowed values of the structure member. |
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32 |
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33 (#) Initialize the SDRAM Controller by calling the function HAL_SDRAM_Init(). This function |
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34 performs the following sequence: |
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35 |
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36 (##) MSP hardware layer configuration using the function HAL_SDRAM_MspInit() |
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37 (##) Control register configuration using the FMC SDRAM interface function |
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38 FMC_SDRAM_Init() |
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39 (##) Timing register configuration using the FMC SDRAM interface function |
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40 FMC_SDRAM_Timing_Init() |
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41 (##) Program the SDRAM external device by applying its initialization sequence |
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42 according to the device plugged in your hardware. This step is mandatory |
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43 for accessing the SDRAM device. |
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44 |
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45 (#) At this stage you can perform read/write accesses from/to the memory connected |
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46 to the SDRAM Bank. You can perform either polling or DMA transfer using the |
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47 following APIs: |
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48 (++) HAL_SDRAM_Read()/HAL_SDRAM_Write() for polling read/write access |
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49 (++) HAL_SDRAM_Read_DMA()/HAL_SDRAM_Write_DMA() for DMA read/write transfer |
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50 |
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51 (#) You can also control the SDRAM device by calling the control APIs HAL_SDRAM_WriteOperation_Enable()/ |
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52 HAL_SDRAM_WriteOperation_Disable() to respectively enable/disable the SDRAM write operation or |
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53 the function HAL_SDRAM_SendCommand() to send a specified command to the SDRAM |
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54 device. The command to be sent must be configured with the FMC_SDRAM_CommandTypeDef |
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55 structure. |
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56 |
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57 (#) You can continuously monitor the SDRAM device HAL state by calling the function |
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58 HAL_SDRAM_GetState() |
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59 |
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60 @endverbatim |
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61 ****************************************************************************** |
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62 * @attention |
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63 * |
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64 * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> |
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65 * |
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66 * Redistribution and use in source and binary forms, with or without modification, |
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67 * are permitted provided that the following conditions are met: |
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68 * 1. Redistributions of source code must retain the above copyright notice, |
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69 * this list of conditions and the following disclaimer. |
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70 * 2. Redistributions in binary form must reproduce the above copyright notice, |
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71 * this list of conditions and the following disclaimer in the documentation |
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72 * and/or other materials provided with the distribution. |
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73 * 3. Neither the name of STMicroelectronics nor the names of its contributors |
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74 * may be used to endorse or promote products derived from this software |
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75 * without specific prior written permission. |
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76 * |
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77 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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78 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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79 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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80 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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81 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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82 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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83 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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84 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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85 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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86 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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87 * |
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88 ****************************************************************************** |
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89 */ |
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90 |
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91 /* Includes ------------------------------------------------------------------*/ |
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92 #include "stm32f4xx_hal.h" |
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93 |
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94 /** @addtogroup STM32F4xx_HAL_Driver |
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95 * @{ |
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96 */ |
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97 |
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98 /** @defgroup SDRAM SDRAM |
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99 * @brief SDRAM driver modules |
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100 * @{ |
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101 */ |
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102 #ifdef HAL_SDRAM_MODULE_ENABLED |
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103 #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\ |
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104 defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx) |
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105 |
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106 /* Private typedef -----------------------------------------------------------*/ |
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107 /* Private define ------------------------------------------------------------*/ |
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108 /* Private macro -------------------------------------------------------------*/ |
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109 /* Private variables ---------------------------------------------------------*/ |
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110 /* Private functions ---------------------------------------------------------*/ |
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111 /* Exported functions --------------------------------------------------------*/ |
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112 /** @defgroup SDRAM_Exported_Functions SDRAM Exported Functions |
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113 * @{ |
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114 */ |
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115 |
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116 /** @defgroup SDRAM_Exported_Functions_Group1 Initialization and de-initialization functions |
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117 * @brief Initialization and Configuration functions |
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118 * |
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119 @verbatim |
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120 ============================================================================== |
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121 ##### SDRAM Initialization and de_initialization functions ##### |
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122 ============================================================================== |
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123 [..] |
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124 This section provides functions allowing to initialize/de-initialize |
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125 the SDRAM memory |
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126 |
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127 @endverbatim |
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128 * @{ |
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129 */ |
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130 |
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131 /** |
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132 * @brief Performs the SDRAM device initialization sequence. |
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133 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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134 * the configuration information for SDRAM module. |
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135 * @param Timing Pointer to SDRAM control timing structure |
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136 * @retval HAL status |
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137 */ |
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138 HAL_StatusTypeDef HAL_SDRAM_Init(SDRAM_HandleTypeDef *hsdram, FMC_SDRAM_TimingTypeDef *Timing) |
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139 { |
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140 /* Check the SDRAM handle parameter */ |
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141 if(hsdram == NULL) |
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142 { |
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143 return HAL_ERROR; |
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144 } |
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145 |
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146 if(hsdram->State == HAL_SDRAM_STATE_RESET) |
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147 { |
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148 /* Allocate lock resource and initialize it */ |
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149 hsdram->Lock = HAL_UNLOCKED; |
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150 /* Initialize the low level hardware (MSP) */ |
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151 HAL_SDRAM_MspInit(hsdram); |
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152 } |
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153 |
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154 /* Initialize the SDRAM controller state */ |
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155 hsdram->State = HAL_SDRAM_STATE_BUSY; |
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156 |
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157 /* Initialize SDRAM control Interface */ |
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158 FMC_SDRAM_Init(hsdram->Instance, &(hsdram->Init)); |
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159 |
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160 /* Initialize SDRAM timing Interface */ |
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161 FMC_SDRAM_Timing_Init(hsdram->Instance, Timing, hsdram->Init.SDBank); |
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162 |
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163 /* Update the SDRAM controller state */ |
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164 hsdram->State = HAL_SDRAM_STATE_READY; |
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165 |
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166 return HAL_OK; |
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167 } |
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168 |
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169 /** |
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170 * @brief Perform the SDRAM device initialization sequence. |
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171 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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172 * the configuration information for SDRAM module. |
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173 * @retval HAL status |
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174 */ |
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175 HAL_StatusTypeDef HAL_SDRAM_DeInit(SDRAM_HandleTypeDef *hsdram) |
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176 { |
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177 /* Initialize the low level hardware (MSP) */ |
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178 HAL_SDRAM_MspDeInit(hsdram); |
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179 |
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180 /* Configure the SDRAM registers with their reset values */ |
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181 FMC_SDRAM_DeInit(hsdram->Instance, hsdram->Init.SDBank); |
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182 |
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183 /* Reset the SDRAM controller state */ |
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184 hsdram->State = HAL_SDRAM_STATE_RESET; |
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185 |
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186 /* Release Lock */ |
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187 __HAL_UNLOCK(hsdram); |
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188 |
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189 return HAL_OK; |
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190 } |
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191 |
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192 /** |
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193 * @brief SDRAM MSP Init. |
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194 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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195 * the configuration information for SDRAM module. |
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196 * @retval None |
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197 */ |
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198 __weak void HAL_SDRAM_MspInit(SDRAM_HandleTypeDef *hsdram) |
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199 { |
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200 /* Prevent unused argument(s) compilation warning */ |
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201 UNUSED(hsdram); |
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202 /* NOTE: This function Should not be modified, when the callback is needed, |
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203 the HAL_SDRAM_MspInit could be implemented in the user file |
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204 */ |
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205 } |
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206 |
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207 /** |
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208 * @brief SDRAM MSP DeInit. |
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209 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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210 * the configuration information for SDRAM module. |
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211 * @retval None |
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212 */ |
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213 __weak void HAL_SDRAM_MspDeInit(SDRAM_HandleTypeDef *hsdram) |
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214 { |
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215 /* Prevent unused argument(s) compilation warning */ |
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216 UNUSED(hsdram); |
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217 /* NOTE: This function Should not be modified, when the callback is needed, |
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218 the HAL_SDRAM_MspDeInit could be implemented in the user file |
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219 */ |
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220 } |
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221 |
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222 /** |
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223 * @brief This function handles SDRAM refresh error interrupt request. |
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224 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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225 * the configuration information for SDRAM module. |
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226 * @retval HAL status |
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227 */ |
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228 void HAL_SDRAM_IRQHandler(SDRAM_HandleTypeDef *hsdram) |
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229 { |
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230 /* Check SDRAM interrupt Rising edge flag */ |
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231 if(__FMC_SDRAM_GET_FLAG(hsdram->Instance, FMC_SDRAM_FLAG_REFRESH_IT)) |
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232 { |
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233 /* SDRAM refresh error interrupt callback */ |
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234 HAL_SDRAM_RefreshErrorCallback(hsdram); |
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235 |
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236 /* Clear SDRAM refresh error interrupt pending bit */ |
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237 __FMC_SDRAM_CLEAR_FLAG(hsdram->Instance, FMC_SDRAM_FLAG_REFRESH_ERROR); |
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238 } |
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239 } |
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240 |
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241 /** |
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242 * @brief SDRAM Refresh error callback. |
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243 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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244 * the configuration information for SDRAM module. |
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245 * @retval None |
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246 */ |
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247 __weak void HAL_SDRAM_RefreshErrorCallback(SDRAM_HandleTypeDef *hsdram) |
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248 { |
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249 /* Prevent unused argument(s) compilation warning */ |
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250 UNUSED(hsdram); |
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251 /* NOTE: This function Should not be modified, when the callback is needed, |
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252 the HAL_SDRAM_RefreshErrorCallback could be implemented in the user file |
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253 */ |
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254 } |
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255 |
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256 /** |
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257 * @brief DMA transfer complete callback. |
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258 * @param hdma pointer to a DMA_HandleTypeDef structure that contains |
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259 * the configuration information for the specified DMA module. |
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260 * @retval None |
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261 */ |
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262 __weak void HAL_SDRAM_DMA_XferCpltCallback(DMA_HandleTypeDef *hdma) |
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263 { |
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264 /* Prevent unused argument(s) compilation warning */ |
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265 UNUSED(hdma); |
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266 /* NOTE: This function Should not be modified, when the callback is needed, |
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267 the HAL_SDRAM_DMA_XferCpltCallback could be implemented in the user file |
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268 */ |
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269 } |
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270 |
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271 /** |
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272 * @brief DMA transfer complete error callback. |
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273 * @param hdma DMA handle |
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274 * @retval None |
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275 */ |
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276 __weak void HAL_SDRAM_DMA_XferErrorCallback(DMA_HandleTypeDef *hdma) |
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277 { |
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278 /* Prevent unused argument(s) compilation warning */ |
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279 UNUSED(hdma); |
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280 /* NOTE: This function Should not be modified, when the callback is needed, |
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281 the HAL_SDRAM_DMA_XferErrorCallback could be implemented in the user file |
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282 */ |
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283 } |
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284 /** |
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285 * @} |
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286 */ |
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287 |
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288 /** @defgroup SDRAM_Exported_Functions_Group2 Input and Output functions |
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289 * @brief Input Output and memory control functions |
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290 * |
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291 @verbatim |
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292 ============================================================================== |
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293 ##### SDRAM Input and Output functions ##### |
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294 ============================================================================== |
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295 [..] |
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296 This section provides functions allowing to use and control the SDRAM memory |
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297 |
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298 @endverbatim |
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299 * @{ |
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300 */ |
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301 |
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302 /** |
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303 * @brief Reads 8-bit data buffer from the SDRAM memory. |
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304 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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305 * the configuration information for SDRAM module. |
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306 * @param pAddress Pointer to read start address |
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307 * @param pDstBuffer Pointer to destination buffer |
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308 * @param BufferSize Size of the buffer to read from memory |
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309 * @retval HAL status |
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310 */ |
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311 HAL_StatusTypeDef HAL_SDRAM_Read_8b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint8_t *pDstBuffer, uint32_t BufferSize) |
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312 { |
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313 __IO uint8_t *pSdramAddress = (uint8_t *)pAddress; |
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314 |
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315 /* Process Locked */ |
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316 __HAL_LOCK(hsdram); |
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317 |
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318 /* Check the SDRAM controller state */ |
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319 if(hsdram->State == HAL_SDRAM_STATE_BUSY) |
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320 { |
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321 return HAL_BUSY; |
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322 } |
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323 else if(hsdram->State == HAL_SDRAM_STATE_PRECHARGED) |
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324 { |
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325 return HAL_ERROR; |
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326 } |
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327 |
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328 /* Read data from source */ |
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329 for(; BufferSize != 0U; BufferSize--) |
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330 { |
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331 *pDstBuffer = *(__IO uint8_t *)pSdramAddress; |
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332 pDstBuffer++; |
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333 pSdramAddress++; |
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334 } |
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335 |
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336 /* Process Unlocked */ |
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337 __HAL_UNLOCK(hsdram); |
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338 |
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339 return HAL_OK; |
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340 } |
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341 |
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342 /** |
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343 * @brief Writes 8-bit data buffer to SDRAM memory. |
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344 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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345 * the configuration information for SDRAM module. |
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346 * @param pAddress Pointer to write start address |
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347 * @param pSrcBuffer Pointer to source buffer to write |
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348 * @param BufferSize Size of the buffer to write to memory |
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349 * @retval HAL status |
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350 */ |
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351 HAL_StatusTypeDef HAL_SDRAM_Write_8b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint8_t *pSrcBuffer, uint32_t BufferSize) |
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352 { |
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353 __IO uint8_t *pSdramAddress = (uint8_t *)pAddress; |
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354 uint32_t tmp = 0U; |
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355 |
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356 /* Process Locked */ |
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357 __HAL_LOCK(hsdram); |
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358 |
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359 /* Check the SDRAM controller state */ |
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360 tmp = hsdram->State; |
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361 |
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362 if(tmp == HAL_SDRAM_STATE_BUSY) |
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363 { |
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364 return HAL_BUSY; |
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365 } |
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366 else if((tmp == HAL_SDRAM_STATE_PRECHARGED) || (tmp == HAL_SDRAM_STATE_WRITE_PROTECTED)) |
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367 { |
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368 return HAL_ERROR; |
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369 } |
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370 |
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371 /* Write data to memory */ |
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372 for(; BufferSize != 0U; BufferSize--) |
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373 { |
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374 *(__IO uint8_t *)pSdramAddress = *pSrcBuffer; |
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375 pSrcBuffer++; |
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376 pSdramAddress++; |
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377 } |
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378 |
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379 /* Process Unlocked */ |
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380 __HAL_UNLOCK(hsdram); |
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381 |
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382 return HAL_OK; |
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383 } |
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384 |
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385 /** |
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386 * @brief Reads 16-bit data buffer from the SDRAM memory. |
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387 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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388 * the configuration information for SDRAM module. |
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389 * @param pAddress Pointer to read start address |
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390 * @param pDstBuffer Pointer to destination buffer |
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391 * @param BufferSize Size of the buffer to read from memory |
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392 * @retval HAL status |
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393 */ |
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394 HAL_StatusTypeDef HAL_SDRAM_Read_16b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint16_t *pDstBuffer, uint32_t BufferSize) |
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395 { |
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396 __IO uint16_t *pSdramAddress = (uint16_t *)pAddress; |
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397 |
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398 /* Process Locked */ |
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399 __HAL_LOCK(hsdram); |
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400 |
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401 /* Check the SDRAM controller state */ |
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402 if(hsdram->State == HAL_SDRAM_STATE_BUSY) |
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Added current STM32 standandard libraries in version independend folder structure
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403 { |
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Added current STM32 standandard libraries in version independend folder structure
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404 return HAL_BUSY; |
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Added current STM32 standandard libraries in version independend folder structure
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405 } |
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Added current STM32 standandard libraries in version independend folder structure
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406 else if(hsdram->State == HAL_SDRAM_STATE_PRECHARGED) |
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407 { |
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Added current STM32 standandard libraries in version independend folder structure
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408 return HAL_ERROR; |
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Added current STM32 standandard libraries in version independend folder structure
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409 } |
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Added current STM32 standandard libraries in version independend folder structure
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410 |
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Added current STM32 standandard libraries in version independend folder structure
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411 /* Read data from source */ |
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412 for(; BufferSize != 0U; BufferSize--) |
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413 { |
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414 *pDstBuffer = *(__IO uint16_t *)pSdramAddress; |
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415 pDstBuffer++; |
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416 pSdramAddress++; |
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417 } |
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418 |
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419 /* Process Unlocked */ |
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420 __HAL_UNLOCK(hsdram); |
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421 |
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422 return HAL_OK; |
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423 } |
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424 |
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Added current STM32 standandard libraries in version independend folder structure
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425 /** |
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426 * @brief Writes 16-bit data buffer to SDRAM memory. |
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427 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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428 * the configuration information for SDRAM module. |
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429 * @param pAddress Pointer to write start address |
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430 * @param pSrcBuffer Pointer to source buffer to write |
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431 * @param BufferSize Size of the buffer to write to memory |
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432 * @retval HAL status |
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433 */ |
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434 HAL_StatusTypeDef HAL_SDRAM_Write_16b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint16_t *pSrcBuffer, uint32_t BufferSize) |
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435 { |
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436 __IO uint16_t *pSdramAddress = (uint16_t *)pAddress; |
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437 uint32_t tmp = 0U; |
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438 |
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439 /* Process Locked */ |
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440 __HAL_LOCK(hsdram); |
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441 |
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442 /* Check the SDRAM controller state */ |
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443 tmp = hsdram->State; |
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444 |
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445 if(tmp == HAL_SDRAM_STATE_BUSY) |
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446 { |
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447 return HAL_BUSY; |
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448 } |
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449 else if((tmp == HAL_SDRAM_STATE_PRECHARGED) || (tmp == HAL_SDRAM_STATE_WRITE_PROTECTED)) |
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450 { |
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451 return HAL_ERROR; |
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452 } |
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453 |
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Added current STM32 standandard libraries in version independend folder structure
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454 /* Write data to memory */ |
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455 for(; BufferSize != 0U; BufferSize--) |
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456 { |
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457 *(__IO uint16_t *)pSdramAddress = *pSrcBuffer; |
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458 pSrcBuffer++; |
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459 pSdramAddress++; |
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460 } |
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461 |
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462 /* Process Unlocked */ |
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463 __HAL_UNLOCK(hsdram); |
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464 |
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465 return HAL_OK; |
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466 } |
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467 |
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468 /** |
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469 * @brief Reads 32-bit data buffer from the SDRAM memory. |
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470 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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471 * the configuration information for SDRAM module. |
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472 * @param pAddress Pointer to read start address |
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473 * @param pDstBuffer Pointer to destination buffer |
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474 * @param BufferSize Size of the buffer to read from memory |
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475 * @retval HAL status |
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476 */ |
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477 HAL_StatusTypeDef HAL_SDRAM_Read_32b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize) |
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478 { |
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479 __IO uint32_t *pSdramAddress = (uint32_t *)pAddress; |
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480 |
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481 /* Process Locked */ |
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482 __HAL_LOCK(hsdram); |
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483 |
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484 /* Check the SDRAM controller state */ |
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485 if(hsdram->State == HAL_SDRAM_STATE_BUSY) |
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486 { |
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487 return HAL_BUSY; |
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488 } |
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489 else if(hsdram->State == HAL_SDRAM_STATE_PRECHARGED) |
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490 { |
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491 return HAL_ERROR; |
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492 } |
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493 |
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494 /* Read data from source */ |
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495 for(; BufferSize != 0U; BufferSize--) |
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496 { |
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497 *pDstBuffer = *(__IO uint32_t *)pSdramAddress; |
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498 pDstBuffer++; |
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499 pSdramAddress++; |
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500 } |
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501 |
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502 /* Process Unlocked */ |
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503 __HAL_UNLOCK(hsdram); |
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504 |
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505 return HAL_OK; |
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506 } |
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507 |
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508 /** |
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509 * @brief Writes 32-bit data buffer to SDRAM memory. |
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510 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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511 * the configuration information for SDRAM module. |
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512 * @param pAddress Pointer to write start address |
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513 * @param pSrcBuffer Pointer to source buffer to write |
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514 * @param BufferSize Size of the buffer to write to memory |
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515 * @retval HAL status |
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516 */ |
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517 HAL_StatusTypeDef HAL_SDRAM_Write_32b(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize) |
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518 { |
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519 __IO uint32_t *pSdramAddress = (uint32_t *)pAddress; |
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520 uint32_t tmp = 0U; |
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521 |
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522 /* Process Locked */ |
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523 __HAL_LOCK(hsdram); |
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|
524 |
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525 /* Check the SDRAM controller state */ |
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526 tmp = hsdram->State; |
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|
527 |
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528 if(tmp == HAL_SDRAM_STATE_BUSY) |
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529 { |
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530 return HAL_BUSY; |
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531 } |
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532 else if((tmp == HAL_SDRAM_STATE_PRECHARGED) || (tmp == HAL_SDRAM_STATE_WRITE_PROTECTED)) |
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533 { |
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534 return HAL_ERROR; |
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|
535 } |
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|
536 |
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537 /* Write data to memory */ |
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538 for(; BufferSize != 0U; BufferSize--) |
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539 { |
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540 *(__IO uint32_t *)pSdramAddress = *pSrcBuffer; |
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541 pSrcBuffer++; |
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542 pSdramAddress++; |
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543 } |
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544 |
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545 /* Process Unlocked */ |
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546 __HAL_UNLOCK(hsdram); |
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547 |
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548 return HAL_OK; |
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549 } |
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550 |
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551 /** |
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552 * @brief Reads a Words data from the SDRAM memory using DMA transfer. |
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553 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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554 * the configuration information for SDRAM module. |
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555 * @param pAddress Pointer to read start address |
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556 * @param pDstBuffer Pointer to destination buffer |
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557 * @param BufferSize Size of the buffer to read from memory |
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558 * @retval HAL status |
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559 */ |
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560 HAL_StatusTypeDef HAL_SDRAM_Read_DMA(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize) |
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561 { |
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562 uint32_t tmp = 0U; |
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563 |
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564 /* Process Locked */ |
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565 __HAL_LOCK(hsdram); |
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|
566 |
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567 /* Check the SDRAM controller state */ |
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568 tmp = hsdram->State; |
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|
569 |
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570 if(tmp == HAL_SDRAM_STATE_BUSY) |
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571 { |
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572 return HAL_BUSY; |
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573 } |
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574 else if(tmp == HAL_SDRAM_STATE_PRECHARGED) |
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575 { |
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576 return HAL_ERROR; |
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577 } |
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578 |
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579 /* Configure DMA user callbacks */ |
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580 hsdram->hdma->XferCpltCallback = HAL_SDRAM_DMA_XferCpltCallback; |
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581 hsdram->hdma->XferErrorCallback = HAL_SDRAM_DMA_XferErrorCallback; |
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582 |
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583 /* Enable the DMA Stream */ |
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584 HAL_DMA_Start_IT(hsdram->hdma, (uint32_t)pAddress, (uint32_t)pDstBuffer, (uint32_t)BufferSize); |
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585 |
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586 /* Process Unlocked */ |
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587 __HAL_UNLOCK(hsdram); |
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588 |
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589 return HAL_OK; |
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590 } |
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591 |
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592 /** |
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593 * @brief Writes a Words data buffer to SDRAM memory using DMA transfer. |
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594 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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595 * the configuration information for SDRAM module. |
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596 * @param pAddress Pointer to write start address |
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597 * @param pSrcBuffer Pointer to source buffer to write |
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598 * @param BufferSize Size of the buffer to write to memory |
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599 * @retval HAL status |
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600 */ |
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601 HAL_StatusTypeDef HAL_SDRAM_Write_DMA(SDRAM_HandleTypeDef *hsdram, uint32_t *pAddress, uint32_t *pSrcBuffer, uint32_t BufferSize) |
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602 { |
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603 uint32_t tmp = 0U; |
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604 |
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605 /* Process Locked */ |
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606 __HAL_LOCK(hsdram); |
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607 |
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608 /* Check the SDRAM controller state */ |
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609 tmp = hsdram->State; |
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610 |
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611 if(tmp == HAL_SDRAM_STATE_BUSY) |
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612 { |
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613 return HAL_BUSY; |
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614 } |
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615 else if((tmp == HAL_SDRAM_STATE_PRECHARGED) || (tmp == HAL_SDRAM_STATE_WRITE_PROTECTED)) |
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616 { |
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617 return HAL_ERROR; |
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618 } |
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619 |
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620 /* Configure DMA user callbacks */ |
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621 hsdram->hdma->XferCpltCallback = HAL_SDRAM_DMA_XferCpltCallback; |
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622 hsdram->hdma->XferErrorCallback = HAL_SDRAM_DMA_XferErrorCallback; |
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623 |
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624 /* Enable the DMA Stream */ |
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625 HAL_DMA_Start_IT(hsdram->hdma, (uint32_t)pSrcBuffer, (uint32_t)pAddress, (uint32_t)BufferSize); |
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626 |
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627 /* Process Unlocked */ |
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628 __HAL_UNLOCK(hsdram); |
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629 |
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630 return HAL_OK; |
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631 } |
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632 /** |
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633 * @} |
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634 */ |
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635 |
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636 /** @defgroup SDRAM_Exported_Functions_Group3 Control functions |
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637 * @brief management functions |
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638 * |
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639 @verbatim |
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640 ============================================================================== |
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641 ##### SDRAM Control functions ##### |
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642 ============================================================================== |
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643 [..] |
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644 This subsection provides a set of functions allowing to control dynamically |
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645 the SDRAM interface. |
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646 |
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647 @endverbatim |
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648 * @{ |
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649 */ |
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650 |
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651 /** |
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652 * @brief Enables dynamically SDRAM write protection. |
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653 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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654 * the configuration information for SDRAM module. |
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655 * @retval HAL status |
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656 */ |
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657 HAL_StatusTypeDef HAL_SDRAM_WriteProtection_Enable(SDRAM_HandleTypeDef *hsdram) |
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658 { |
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659 /* Check the SDRAM controller state */ |
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660 if(hsdram->State == HAL_SDRAM_STATE_BUSY) |
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661 { |
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662 return HAL_BUSY; |
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663 } |
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664 |
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665 /* Update the SDRAM state */ |
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666 hsdram->State = HAL_SDRAM_STATE_BUSY; |
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667 |
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668 /* Enable write protection */ |
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669 FMC_SDRAM_WriteProtection_Enable(hsdram->Instance, hsdram->Init.SDBank); |
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670 |
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671 /* Update the SDRAM state */ |
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672 hsdram->State = HAL_SDRAM_STATE_WRITE_PROTECTED; |
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673 |
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674 return HAL_OK; |
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675 } |
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Added current STM32 standandard libraries in version independend folder structure
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|
676 |
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Added current STM32 standandard libraries in version independend folder structure
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|
677 /** |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
678 * @brief Disables dynamically SDRAM write protection. |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
679 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
680 * the configuration information for SDRAM module. |
c78bcbd5deda
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|
681 * @retval HAL status |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
682 */ |
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Ideenmodellierer
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|
683 HAL_StatusTypeDef HAL_SDRAM_WriteProtection_Disable(SDRAM_HandleTypeDef *hsdram) |
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Ideenmodellierer
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|
684 { |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
685 /* Check the SDRAM controller state */ |
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Ideenmodellierer
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|
686 if(hsdram->State == HAL_SDRAM_STATE_BUSY) |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
687 { |
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diff
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|
688 return HAL_BUSY; |
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Added current STM32 standandard libraries in version independend folder structure
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diff
changeset
|
689 } |
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Added current STM32 standandard libraries in version independend folder structure
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diff
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|
690 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
changeset
|
691 /* Update the SDRAM state */ |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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changeset
|
692 hsdram->State = HAL_SDRAM_STATE_BUSY; |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
693 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
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changeset
|
694 /* Disable write protection */ |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
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|
695 FMC_SDRAM_WriteProtection_Disable(hsdram->Instance, hsdram->Init.SDBank); |
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Added current STM32 standandard libraries in version independend folder structure
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parents:
diff
changeset
|
696 |
c78bcbd5deda
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diff
changeset
|
697 /* Update the SDRAM state */ |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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diff
changeset
|
698 hsdram->State = HAL_SDRAM_STATE_READY; |
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Ideenmodellierer
parents:
diff
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|
699 |
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Added current STM32 standandard libraries in version independend folder structure
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|
700 return HAL_OK; |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
701 } |
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Added current STM32 standandard libraries in version independend folder structure
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diff
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|
702 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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|
703 /** |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
704 * @brief Sends Command to the SDRAM bank. |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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|
705 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
706 * the configuration information for SDRAM module. |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
707 * @param Command SDRAM command structure |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
708 * @param Timeout Timeout duration |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
709 * @retval HAL status |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
710 */ |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
711 HAL_StatusTypeDef HAL_SDRAM_SendCommand(SDRAM_HandleTypeDef *hsdram, FMC_SDRAM_CommandTypeDef *Command, uint32_t Timeout) |
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Ideenmodellierer
parents:
diff
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|
712 { |
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Ideenmodellierer
parents:
diff
changeset
|
713 /* Check the SDRAM controller state */ |
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Ideenmodellierer
parents:
diff
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|
714 if(hsdram->State == HAL_SDRAM_STATE_BUSY) |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
715 { |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
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|
716 return HAL_BUSY; |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
changeset
|
717 } |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
718 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
719 /* Update the SDRAM state */ |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
720 hsdram->State = HAL_SDRAM_STATE_BUSY; |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
721 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
722 /* Send SDRAM command */ |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
723 FMC_SDRAM_SendCommand(hsdram->Instance, Command, Timeout); |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
724 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
725 /* Update the SDRAM controller state */ |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
changeset
|
726 if(Command->CommandMode == FMC_SDRAM_CMD_PALL) |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
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|
727 { |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
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|
728 hsdram->State = HAL_SDRAM_STATE_PRECHARGED; |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
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|
729 } |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
730 else |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
changeset
|
731 { |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
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|
732 hsdram->State = HAL_SDRAM_STATE_READY; |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
733 } |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
734 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff
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|
735 return HAL_OK; |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
736 } |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
737 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
changeset
|
738 /** |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
739 * @brief Programs the SDRAM Memory Refresh rate. |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
740 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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Added current STM32 standandard libraries in version independend folder structure
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|
741 * the configuration information for SDRAM module. |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
742 * @param RefreshRate The SDRAM refresh rate value |
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Added current STM32 standandard libraries in version independend folder structure
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|
743 * @retval HAL status |
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Added current STM32 standandard libraries in version independend folder structure
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|
744 */ |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
745 HAL_StatusTypeDef HAL_SDRAM_ProgramRefreshRate(SDRAM_HandleTypeDef *hsdram, uint32_t RefreshRate) |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
746 { |
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Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
747 /* Check the SDRAM controller state */ |
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Added current STM32 standandard libraries in version independend folder structure
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|
748 if(hsdram->State == HAL_SDRAM_STATE_BUSY) |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
749 { |
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Added current STM32 standandard libraries in version independend folder structure
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|
750 return HAL_BUSY; |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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diff
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|
751 } |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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diff
changeset
|
752 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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|
753 /* Update the SDRAM state */ |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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|
754 hsdram->State = HAL_SDRAM_STATE_BUSY; |
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|
755 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
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diff
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|
756 /* Program the refresh rate */ |
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Added current STM32 standandard libraries in version independend folder structure
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|
757 FMC_SDRAM_ProgramRefreshRate(hsdram->Instance ,RefreshRate); |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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|
758 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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|
759 /* Update the SDRAM state */ |
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Added current STM32 standandard libraries in version independend folder structure
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|
760 hsdram->State = HAL_SDRAM_STATE_READY; |
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Added current STM32 standandard libraries in version independend folder structure
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|
761 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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|
762 return HAL_OK; |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
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|
763 } |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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parents:
diff
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|
764 |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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|
765 /** |
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Added current STM32 standandard libraries in version independend folder structure
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|
766 * @brief Sets the Number of consecutive SDRAM Memory auto Refresh commands. |
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Added current STM32 standandard libraries in version independend folder structure
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|
767 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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Added current STM32 standandard libraries in version independend folder structure
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|
768 * the configuration information for SDRAM module. |
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Added current STM32 standandard libraries in version independend folder structure
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|
769 * @param AutoRefreshNumber The SDRAM auto Refresh number |
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Added current STM32 standandard libraries in version independend folder structure
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|
770 * @retval HAL status |
c78bcbd5deda
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|
771 */ |
c78bcbd5deda
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|
772 HAL_StatusTypeDef HAL_SDRAM_SetAutoRefreshNumber(SDRAM_HandleTypeDef *hsdram, uint32_t AutoRefreshNumber) |
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|
773 { |
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Added current STM32 standandard libraries in version independend folder structure
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|
774 /* Check the SDRAM controller state */ |
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Added current STM32 standandard libraries in version independend folder structure
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|
775 if(hsdram->State == HAL_SDRAM_STATE_BUSY) |
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|
776 { |
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Added current STM32 standandard libraries in version independend folder structure
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|
777 return HAL_BUSY; |
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Added current STM32 standandard libraries in version independend folder structure
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|
778 } |
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changeset
|
779 |
c78bcbd5deda
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|
780 /* Update the SDRAM state */ |
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|
781 hsdram->State = HAL_SDRAM_STATE_BUSY; |
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|
782 |
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Added current STM32 standandard libraries in version independend folder structure
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|
783 /* Set the Auto-Refresh number */ |
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Added current STM32 standandard libraries in version independend folder structure
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|
784 FMC_SDRAM_SetAutoRefreshNumber(hsdram->Instance ,AutoRefreshNumber); |
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|
785 |
c78bcbd5deda
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|
786 /* Update the SDRAM state */ |
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Added current STM32 standandard libraries in version independend folder structure
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|
787 hsdram->State = HAL_SDRAM_STATE_READY; |
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|
788 |
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|
789 return HAL_OK; |
c78bcbd5deda
Added current STM32 standandard libraries in version independend folder structure
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diff
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|
790 } |
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Added current STM32 standandard libraries in version independend folder structure
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diff
changeset
|
791 |
c78bcbd5deda
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|
792 /** |
c78bcbd5deda
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|
793 * @brief Returns the SDRAM memory current mode. |
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Added current STM32 standandard libraries in version independend folder structure
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|
794 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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|
795 * the configuration information for SDRAM module. |
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Added current STM32 standandard libraries in version independend folder structure
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|
796 * @retval The SDRAM memory mode. |
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|
797 */ |
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|
798 uint32_t HAL_SDRAM_GetModeStatus(SDRAM_HandleTypeDef *hsdram) |
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|
799 { |
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|
800 /* Return the SDRAM memory current mode */ |
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|
801 return(FMC_SDRAM_GetModeStatus(hsdram->Instance, hsdram->Init.SDBank)); |
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Added current STM32 standandard libraries in version independend folder structure
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|
802 } |
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|
803 |
c78bcbd5deda
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|
804 /** |
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|
805 * @} |
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|
806 */ |
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changeset
|
807 |
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|
808 /** @defgroup SDRAM_Exported_Functions_Group4 State functions |
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|
809 * @brief Peripheral State functions |
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|
810 * |
c78bcbd5deda
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|
811 @verbatim |
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812 ============================================================================== |
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813 ##### SDRAM State functions ##### |
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814 ============================================================================== |
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815 [..] |
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816 This subsection permits to get in run-time the status of the SDRAM controller |
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817 and the data flow. |
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818 |
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819 @endverbatim |
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820 * @{ |
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821 */ |
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822 |
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823 /** |
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824 * @brief Returns the SDRAM state. |
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825 * @param hsdram pointer to a SDRAM_HandleTypeDef structure that contains |
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826 * the configuration information for SDRAM module. |
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827 * @retval HAL state |
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828 */ |
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829 HAL_SDRAM_StateTypeDef HAL_SDRAM_GetState(SDRAM_HandleTypeDef *hsdram) |
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830 { |
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831 return hsdram->State; |
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832 } |
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833 |
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834 /** |
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835 * @} |
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836 */ |
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837 |
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838 /** |
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839 * @} |
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840 */ |
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841 #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */ |
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842 #endif /* HAL_SDRAM_MODULE_ENABLED */ |
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843 /** |
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844 * @} |
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845 */ |
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846 |
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847 /** |
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848 * @} |
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849 */ |
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850 |
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851 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |