diff options
Diffstat (limited to 'lib/f4/stm32f4xx_hal_flash_ramfunc.c')
| -rw-r--r-- | lib/f4/stm32f4xx_hal_flash_ramfunc.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/lib/f4/stm32f4xx_hal_flash_ramfunc.c b/lib/f4/stm32f4xx_hal_flash_ramfunc.c new file mode 100644 index 0000000..1fb20ec --- /dev/null +++ b/lib/f4/stm32f4xx_hal_flash_ramfunc.c @@ -0,0 +1,175 @@ +/**
+ ******************************************************************************
+ * @file stm32f4xx_hal_flash_ramfunc.c
+ * @author MCD Application Team
+ * @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) 2017 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* 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(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F411xE) || defined(STM32F446xx) || defined(STM32F412Zx) || defined(STM32F412Vx) || \
+ defined(STM32F412Rx) || defined(STM32F412Cx)
+
+/* 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 STM32F41xxx/STM32F446xx 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 HAL status
+ */
+__RAM_FUNC HAL_StatusTypeDef 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/STM32F446xx 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 HAL status
+ */
+__RAM_FUNC HAL_StatusTypeDef 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 STM32F41xxx/STM32F446xx 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 HAL status
+ */
+__RAM_FUNC HAL_StatusTypeDef 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 STM32F41xxx/STM32F446xx 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 HAL status
+ */
+__RAM_FUNC HAL_StatusTypeDef 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 /* STM32F410xx || STM32F411xE || STM32F446xx || STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Cx */
+#endif /* HAL_FLASH_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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