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view Common/Drivers/STM32F4xx_HAL_DRIVER_v120/Src/stm32f4xx_hal_flash_ramfunc.c @ 98:01169b86f9c6 kittz
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author | Dmitry Romanov <kitt@bk.ru> |
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date | Mon, 26 Nov 2018 13:58:51 +0300 |
parents | 5f11787b4f42 |
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/** ****************************************************************************** * @file stm32f4xx_hal_flash_ramfunc.c * @author MCD Application Team * @version V1.2.0 * @date 26-December-2014 * @brief FLASH RAMFUNC module driver. * This file provides a FLASH firmware functions which should be * executed from internal SRAM * + Stop/Start the flash interface while System Run * + Enable/Disable the flash sleep while System Run @verbatim ============================================================================== ##### APIs executed from Internal RAM ##### ============================================================================== [..] *** ARM Compiler *** -------------------- [..] RAM functions are defined using the toolchain options. Functions that are be executed in RAM should reside in a separate source module. Using the 'Options for File' dialog you can simply change the 'Code / Const' area of a module to a memory space in physical RAM. Available memory areas are declared in the 'Target' tab of the Options for Target' dialog. *** ICCARM Compiler *** ----------------------- [..] RAM functions are defined using a specific toolchain keyword "__ramfunc". *** GNU Compiler *** -------------------- [..] RAM functions are defined using a specific toolchain attribute "__attribute__((section(".RamFunc")))". @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal.h" /** @addtogroup STM32F4xx_HAL_Driver * @{ */ /** @defgroup FLASH_RAMFUNC FLASH RAMFUNC * @brief FLASH functions executed from RAM * @{ */ #ifdef HAL_FLASH_MODULE_ENABLED #if defined(STM32F411xE) /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Exported functions --------------------------------------------------------*/ /** @defgroup FLASH_RAMFUNC_Exported_Functions FLASH RAMFUNC Exported Functions * @{ */ /** @defgroup FLASH_RAMFUNC_Exported_Functions_Group1 Peripheral features functions executed from internal RAM * @brief Peripheral Extended features functions * @verbatim =============================================================================== ##### ramfunc functions ##### =============================================================================== [..] This subsection provides a set of functions that should be executed from RAM transfers. @endverbatim * @{ */ /** * @brief Stop the flash interface while System Run * @note This mode is only available for STM32F411xx devices. * @note This mode couldn't be set while executing with the flash itself. * It should be done with specific routine executed from RAM. * @retval None */ __RAM_FUNC HAL_FLASHEx_StopFlashInterfaceClk(void) { /* Enable Power ctrl clock */ __HAL_RCC_PWR_CLK_ENABLE(); /* Stop the flash interface while System Run */ SET_BIT(PWR->CR, PWR_CR_FISSR); return HAL_OK; } /** * @brief Start the flash interface while System Run * @note This mode is only available for STM32F411xx devices. * @note This mode couldn't be set while executing with the flash itself. * It should be done with specific routine executed from RAM. * @retval None */ __RAM_FUNC HAL_FLASHEx_StartFlashInterfaceClk(void) { /* Enable Power ctrl clock */ __HAL_RCC_PWR_CLK_ENABLE(); /* Start the flash interface while System Run */ CLEAR_BIT(PWR->CR, PWR_CR_FISSR); return HAL_OK; } /** * @brief Enable the flash sleep while System Run * @note This mode is only available for STM32F411xx devices. * @note This mode could n't be set while executing with the flash itself. * It should be done with specific routine executed from RAM. * @retval None */ __RAM_FUNC HAL_FLASHEx_EnableFlashSleepMode(void) { /* Enable Power ctrl clock */ __HAL_RCC_PWR_CLK_ENABLE(); /* Enable the flash sleep while System Run */ SET_BIT(PWR->CR, PWR_CR_FMSSR); return HAL_OK; } /** * @brief Disable the flash sleep while System Run * @note This mode is only available for STM32F411xx devices. * @note This mode could n't be set while executing with the flash itself. * It should be done with specific routine executed from RAM. * @retval None */ __RAM_FUNC HAL_FLASHEx_DisableFlashSleepMode(void) { /* Enable Power ctrl clock */ __HAL_RCC_PWR_CLK_ENABLE(); /* Disable the flash sleep while System Run */ CLEAR_BIT(PWR->CR, PWR_CR_FMSSR); return HAL_OK; } /** * @} */ /** * @} */ #endif /* STM32F411xE */ #endif /* HAL_FLASH_MODULE_ENABLED */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/