STM32F439xx HAL User Manual
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00001 /** 00002 ****************************************************************************** 00003 * @file stm32f4xx_hal_flash_ramfunc.c 00004 * @author MCD Application Team 00005 * @brief FLASH RAMFUNC module driver. 00006 * This file provides a FLASH firmware functions which should be 00007 * executed from internal SRAM 00008 * + Stop/Start the flash interface while System Run 00009 * + Enable/Disable the flash sleep while System Run 00010 @verbatim 00011 ============================================================================== 00012 ##### APIs executed from Internal RAM ##### 00013 ============================================================================== 00014 [..] 00015 *** ARM Compiler *** 00016 -------------------- 00017 [..] RAM functions are defined using the toolchain options. 00018 Functions that are be executed in RAM should reside in a separate 00019 source module. Using the 'Options for File' dialog you can simply change 00020 the 'Code / Const' area of a module to a memory space in physical RAM. 00021 Available memory areas are declared in the 'Target' tab of the 00022 Options for Target' dialog. 00023 00024 *** ICCARM Compiler *** 00025 ----------------------- 00026 [..] RAM functions are defined using a specific toolchain keyword "__ramfunc". 00027 00028 *** GNU Compiler *** 00029 -------------------- 00030 [..] RAM functions are defined using a specific toolchain attribute 00031 "__attribute__((section(".RamFunc")))". 00032 00033 @endverbatim 00034 ****************************************************************************** 00035 * @attention 00036 * 00037 * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> 00038 * 00039 * Redistribution and use in source and binary forms, with or without modification, 00040 * are permitted provided that the following conditions are met: 00041 * 1. Redistributions of source code must retain the above copyright notice, 00042 * this list of conditions and the following disclaimer. 00043 * 2. Redistributions in binary form must reproduce the above copyright notice, 00044 * this list of conditions and the following disclaimer in the documentation 00045 * and/or other materials provided with the distribution. 00046 * 3. Neither the name of STMicroelectronics nor the names of its contributors 00047 * may be used to endorse or promote products derived from this software 00048 * without specific prior written permission. 00049 * 00050 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00051 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00052 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00053 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 00054 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00055 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 00056 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00057 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00058 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00059 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00060 * 00061 ****************************************************************************** 00062 */ 00063 00064 /* Includes ------------------------------------------------------------------*/ 00065 #include "stm32f4xx_hal.h" 00066 00067 /** @addtogroup STM32F4xx_HAL_Driver 00068 * @{ 00069 */ 00070 00071 /** @defgroup FLASH_RAMFUNC FLASH RAMFUNC 00072 * @brief FLASH functions executed from RAM 00073 * @{ 00074 */ 00075 #ifdef HAL_FLASH_MODULE_ENABLED 00076 #if defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F411xE) || defined(STM32F446xx) || defined(STM32F412Zx) || defined(STM32F412Vx) || \ 00077 defined(STM32F412Rx) || defined(STM32F412Cx) 00078 00079 /* Private typedef -----------------------------------------------------------*/ 00080 /* Private define ------------------------------------------------------------*/ 00081 /* Private macro -------------------------------------------------------------*/ 00082 /* Private variables ---------------------------------------------------------*/ 00083 /* Private function prototypes -----------------------------------------------*/ 00084 /* Exported functions --------------------------------------------------------*/ 00085 /** @defgroup FLASH_RAMFUNC_Exported_Functions FLASH RAMFUNC Exported Functions 00086 * @{ 00087 */ 00088 00089 /** @defgroup FLASH_RAMFUNC_Exported_Functions_Group1 Peripheral features functions executed from internal RAM 00090 * @brief Peripheral Extended features functions 00091 * 00092 @verbatim 00093 00094 =============================================================================== 00095 ##### ramfunc functions ##### 00096 =============================================================================== 00097 [..] 00098 This subsection provides a set of functions that should be executed from RAM 00099 transfers. 00100 00101 @endverbatim 00102 * @{ 00103 */ 00104 00105 /** 00106 * @brief Stop the flash interface while System Run 00107 * @note This mode is only available for STM32F41xxx/STM32F446xx devices. 00108 * @note This mode couldn't be set while executing with the flash itself. 00109 * It should be done with specific routine executed from RAM. 00110 * @retval None 00111 */ 00112 __RAM_FUNC HAL_FLASHEx_StopFlashInterfaceClk(void) 00113 { 00114 /* Enable Power ctrl clock */ 00115 __HAL_RCC_PWR_CLK_ENABLE(); 00116 /* Stop the flash interface while System Run */ 00117 SET_BIT(PWR->CR, PWR_CR_FISSR); 00118 00119 return HAL_OK; 00120 } 00121 00122 /** 00123 * @brief Start the flash interface while System Run 00124 * @note This mode is only available for STM32F411xx/STM32F446xx devices. 00125 * @note This mode couldn't be set while executing with the flash itself. 00126 * It should be done with specific routine executed from RAM. 00127 * @retval None 00128 */ 00129 __RAM_FUNC HAL_FLASHEx_StartFlashInterfaceClk(void) 00130 { 00131 /* Enable Power ctrl clock */ 00132 __HAL_RCC_PWR_CLK_ENABLE(); 00133 /* Start the flash interface while System Run */ 00134 CLEAR_BIT(PWR->CR, PWR_CR_FISSR); 00135 00136 return HAL_OK; 00137 } 00138 00139 /** 00140 * @brief Enable the flash sleep while System Run 00141 * @note This mode is only available for STM32F41xxx/STM32F446xx devices. 00142 * @note This mode could n't be set while executing with the flash itself. 00143 * It should be done with specific routine executed from RAM. 00144 * @retval None 00145 */ 00146 __RAM_FUNC HAL_FLASHEx_EnableFlashSleepMode(void) 00147 { 00148 /* Enable Power ctrl clock */ 00149 __HAL_RCC_PWR_CLK_ENABLE(); 00150 /* Enable the flash sleep while System Run */ 00151 SET_BIT(PWR->CR, PWR_CR_FMSSR); 00152 00153 return HAL_OK; 00154 } 00155 00156 /** 00157 * @brief Disable the flash sleep while System Run 00158 * @note This mode is only available for STM32F41xxx/STM32F446xx devices. 00159 * @note This mode couldn't be set while executing with the flash itself. 00160 * It should be done with specific routine executed from RAM. 00161 * @retval None 00162 */ 00163 __RAM_FUNC HAL_FLASHEx_DisableFlashSleepMode(void) 00164 { 00165 /* Enable Power ctrl clock */ 00166 __HAL_RCC_PWR_CLK_ENABLE(); 00167 /* Disable the flash sleep while System Run */ 00168 CLEAR_BIT(PWR->CR, PWR_CR_FMSSR); 00169 00170 return HAL_OK; 00171 } 00172 00173 /** 00174 * @} 00175 */ 00176 00177 /** 00178 * @} 00179 */ 00180 00181 #endif /* STM32F410xx || STM32F411xE || STM32F446xx || STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Cx */ 00182 #endif /* HAL_FLASH_MODULE_ENABLED */ 00183 /** 00184 * @} 00185 */ 00186 00187 /** 00188 * @} 00189 */ 00190 00191 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/