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1 /**
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2 ******************************************************************************
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3 * @file stm32l4xx_hal_flash_ramfunc.c
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4 * @author MCD Application Team
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5 * @version V1.6.0
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6 * @date 28-October-2016
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7 * @brief FLASH RAMFUNC driver.
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8 * This file provides a Flash firmware functions which should be
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9 * executed from internal SRAM
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10 * + FLASH HalfPage Programming
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11 * + FLASH Power Down in Run mode
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12 *
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13 * @verbatim
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14 ==============================================================================
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15 ##### Flash RAM functions #####
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16 ==============================================================================
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17
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18 *** ARM Compiler ***
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19 --------------------
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20 [..] RAM functions are defined using the toolchain options.
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21 Functions that are executed in RAM should reside in a separate
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22 source module. Using the 'Options for File' dialog you can simply change
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23 the 'Code / Const' area of a module to a memory space in physical RAM.
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24 Available memory areas are declared in the 'Target' tab of the
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25 Options for Target' dialog.
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26
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27 *** ICCARM Compiler ***
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28 -----------------------
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29 [..] RAM functions are defined using a specific toolchain keyword "__ramfunc".
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30
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31 *** GNU Compiler ***
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32 --------------------
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33 [..] RAM functions are defined using a specific toolchain attribute
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34 "__attribute__((section(".RamFunc")))".
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35
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36 @endverbatim
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37 ******************************************************************************
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38 * @attention
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39 *
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40 * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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41 *
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42 * Redistribution and use in source and binary forms, with or without modification,
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43 * are permitted provided that the following conditions are met:
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44 * 1. Redistributions of source code must retain the above copyright notice,
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45 * this list of conditions and the following disclaimer.
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46 * 2. Redistributions in binary form must reproduce the above copyright notice,
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47 * this list of conditions and the following disclaimer in the documentation
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48 * and/or other materials provided with the distribution.
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49 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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50 * may be used to endorse or promote products derived from this software
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51 * without specific prior written permission.
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52 *
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53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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54 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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56 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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59 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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60 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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61 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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63 *
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64 ******************************************************************************
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65 */
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66
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67 /* Includes ------------------------------------------------------------------*/
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68 #include "stm32l4xx_hal.h"
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69
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70 /** @addtogroup STM32L4xx_HAL_Driver
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71 * @{
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72 */
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73
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74 /** @defgroup FLASH_RAMFUNC FLASH_RAMFUNC
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75 * @brief FLASH functions executed from RAM
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76 * @{
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77 */
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78
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79 #ifdef HAL_FLASH_MODULE_ENABLED
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80
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81 /* Private typedef -----------------------------------------------------------*/
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82 /* Private define ------------------------------------------------------------*/
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83 /* Private macro -------------------------------------------------------------*/
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84 /* Private variables ---------------------------------------------------------*/
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85 extern FLASH_ProcessTypeDef pFlash;
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86
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87 /* Private function prototypes -----------------------------------------------*/
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88 /* Exported functions -------------------------------------------------------*/
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89
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90 /** @defgroup FLASH_RAMFUNC_Exported_Functions FLASH in RAM function Exported Functions
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91 * @{
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92 */
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93
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94 /** @defgroup FLASH_RAMFUNC_Exported_Functions_Group1 Peripheral features functions
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95 * @brief Data transfers functions
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96 *
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97 @verbatim
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98 ===============================================================================
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99 ##### ramfunc functions #####
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100 ===============================================================================
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101 [..]
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102 This subsection provides a set of functions that should be executed from RAM.
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103
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104 @endverbatim
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105 * @{
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106 */
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107
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108 /**
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109 * @brief Enable the Power down in Run Mode
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110 * @note This function should be called and executed from SRAM memory
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111 * @retval None
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112 */
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113 __RAM_FUNC HAL_FLASHEx_EnableRunPowerDown(void)
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114 {
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115 /* Enable the Power Down in Run mode*/
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116 __HAL_FLASH_POWER_DOWN_ENABLE();
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117
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118 return HAL_OK;
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119
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120 }
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121
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122 /**
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123 * @brief Disable the Power down in Run Mode
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124 * @note This function should be called and executed from SRAM memory
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125 * @retval None
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126 */
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127 __RAM_FUNC HAL_FLASHEx_DisableRunPowerDown(void)
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128 {
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129 /* Disable the Power Down in Run mode*/
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130 __HAL_FLASH_POWER_DOWN_DISABLE();
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131
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132 return HAL_OK;
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133 }
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134
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135 /**
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136 * @}
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137 */
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138
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139 /**
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140 * @}
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141 */
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142 #endif /* HAL_FLASH_MODULE_ENABLED */
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143
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144
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145
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146 /**
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147 * @}
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148 */
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149
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150 /**
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151 * @}
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152 */
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153
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154
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155 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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156
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