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annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ramfunc.c @ 916:4832981f9af8 Evo_2_23

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External sensor UART: Switch to DMA TX transfers: The previous version used polling tx function to transfer data. Because of the short command length of the protocols supported this was no big issue. New protocolls (like GNSS) have longer command sequence which have an impact to the program flow. That's why the implementation has been changed to DMA transmission.
author Ideenmodellierer
date Mon, 28 Oct 2024 20:34:58 +0100
parents c78bcbd5deda
children
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_hal_flash_ramfunc.c
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4 * @author MCD Application Team
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5 * @brief FLASH RAMFUNC module driver.
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6 * This file provides a FLASH firmware functions which should be
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7 * executed from internal SRAM
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8 * + Stop/Start the flash interface while System Run
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9 * + Enable/Disable the flash sleep while System Run
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10 @verbatim
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11 ==============================================================================
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12 ##### APIs executed from Internal RAM #####
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13 ==============================================================================
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14 [..]
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15 *** ARM Compiler ***
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16 --------------------
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17 [..] RAM functions are defined using the toolchain options.
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18 Functions that are be executed in RAM should reside in a separate
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19 source module. Using the 'Options for File' dialog you can simply change
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20 the 'Code / Const' area of a module to a memory space in physical RAM.
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21 Available memory areas are declared in the 'Target' tab of the
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22 Options for Target' dialog.
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23
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24 *** ICCARM Compiler ***
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25 -----------------------
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26 [..] RAM functions are defined using a specific toolchain keyword "__ramfunc".
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27
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28 *** GNU Compiler ***
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29 --------------------
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30 [..] RAM functions are defined using a specific toolchain attribute
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31 "__attribute__((section(".RamFunc")))".
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32
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33 @endverbatim
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34 ******************************************************************************
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35 * @attention
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36 *
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37 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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38 *
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39 * Redistribution and use in source and binary forms, with or without modification,
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40 * are permitted provided that the following conditions are met:
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41 * 1. Redistributions of source code must retain the above copyright notice,
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42 * this list of conditions and the following disclaimer.
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43 * 2. Redistributions in binary form must reproduce the above copyright notice,
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44 * this list of conditions and the following disclaimer in the documentation
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45 * and/or other materials provided with the distribution.
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46 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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47 * may be used to endorse or promote products derived from this software
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48 * without specific prior written permission.
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49 *
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50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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51 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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53 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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56 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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57 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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58 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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60 *
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61 ******************************************************************************
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62 */
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63
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64 /* Includes ------------------------------------------------------------------*/
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65 #include "stm32f4xx_hal.h"
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66
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67 /** @addtogroup STM32F4xx_HAL_Driver
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68 * @{
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69 */
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70
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71 /** @defgroup FLASH_RAMFUNC FLASH RAMFUNC
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72 * @brief FLASH functions executed from RAM
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73 * @{
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74 */
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75 #ifdef HAL_FLASH_MODULE_ENABLED
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76 #if defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F411xE) || defined(STM32F446xx) || defined(STM32F412Zx) || defined(STM32F412Vx) || \
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77 defined(STM32F412Rx) || defined(STM32F412Cx)
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78
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79 /* Private typedef -----------------------------------------------------------*/
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80 /* Private define ------------------------------------------------------------*/
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81 /* Private macro -------------------------------------------------------------*/
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82 /* Private variables ---------------------------------------------------------*/
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83 /* Private function prototypes -----------------------------------------------*/
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84 /* Exported functions --------------------------------------------------------*/
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85 /** @defgroup FLASH_RAMFUNC_Exported_Functions FLASH RAMFUNC Exported Functions
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86 * @{
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87 */
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88
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89 /** @defgroup FLASH_RAMFUNC_Exported_Functions_Group1 Peripheral features functions executed from internal RAM
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90 * @brief Peripheral Extended features functions
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91 *
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92 @verbatim
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93
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94 ===============================================================================
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95 ##### ramfunc functions #####
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96 ===============================================================================
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97 [..]
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98 This subsection provides a set of functions that should be executed from RAM
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99 transfers.
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100
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101 @endverbatim
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102 * @{
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103 */
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104
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105 /**
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106 * @brief Stop the flash interface while System Run
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107 * @note This mode is only available for STM32F41xxx/STM32F446xx devices.
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108 * @note This mode couldn't be set while executing with the flash itself.
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109 * It should be done with specific routine executed from RAM.
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110 * @retval HAL status
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111 */
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112 __RAM_FUNC HAL_StatusTypeDef HAL_FLASHEx_StopFlashInterfaceClk(void)
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113 {
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114 /* Enable Power ctrl clock */
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115 __HAL_RCC_PWR_CLK_ENABLE();
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116 /* Stop the flash interface while System Run */
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117 SET_BIT(PWR->CR, PWR_CR_FISSR);
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118
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119 return HAL_OK;
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120 }
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121
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122 /**
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123 * @brief Start the flash interface while System Run
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124 * @note This mode is only available for STM32F411xx/STM32F446xx devices.
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125 * @note This mode couldn't be set while executing with the flash itself.
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126 * It should be done with specific routine executed from RAM.
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127 * @retval HAL status
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128 */
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129 __RAM_FUNC HAL_StatusTypeDef HAL_FLASHEx_StartFlashInterfaceClk(void)
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130 {
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131 /* Enable Power ctrl clock */
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132 __HAL_RCC_PWR_CLK_ENABLE();
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133 /* Start the flash interface while System Run */
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134 CLEAR_BIT(PWR->CR, PWR_CR_FISSR);
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135
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136 return HAL_OK;
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137 }
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138
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139 /**
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140 * @brief Enable the flash sleep while System Run
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141 * @note This mode is only available for STM32F41xxx/STM32F446xx devices.
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142 * @note This mode could n't be set while executing with the flash itself.
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143 * It should be done with specific routine executed from RAM.
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144 * @retval HAL status
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145 */
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146 __RAM_FUNC HAL_StatusTypeDef HAL_FLASHEx_EnableFlashSleepMode(void)
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147 {
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148 /* Enable Power ctrl clock */
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149 __HAL_RCC_PWR_CLK_ENABLE();
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150 /* Enable the flash sleep while System Run */
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151 SET_BIT(PWR->CR, PWR_CR_FMSSR);
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152
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153 return HAL_OK;
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154 }
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155
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156 /**
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157 * @brief Disable the flash sleep while System Run
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158 * @note This mode is only available for STM32F41xxx/STM32F446xx devices.
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159 * @note This mode couldn't be set while executing with the flash itself.
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160 * It should be done with specific routine executed from RAM.
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161 * @retval HAL status
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162 */
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163 __RAM_FUNC HAL_StatusTypeDef HAL_FLASHEx_DisableFlashSleepMode(void)
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164 {
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165 /* Enable Power ctrl clock */
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166 __HAL_RCC_PWR_CLK_ENABLE();
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167 /* Disable the flash sleep while System Run */
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168 CLEAR_BIT(PWR->CR, PWR_CR_FMSSR);
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169
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170 return HAL_OK;
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171 }
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172
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173 /**
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174 * @}
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175 */
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176
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177 /**
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178 * @}
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179 */
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180
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181 #endif /* STM32F410xx || STM32F411xE || STM32F446xx || STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Cx */
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182 #endif /* HAL_FLASH_MODULE_ENABLED */
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183 /**
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184 * @}
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185 */
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186
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187 /**
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188 * @}
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189 */
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190
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191 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/