1128 lines
36 KiB
C
1128 lines
36 KiB
C
/**
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******************************************************************************
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* @file stm32f1xx_hal_flash_ex.c
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* @author MCD Application Team
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* @brief Extended FLASH HAL module driver.
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*
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* This file provides firmware functions to manage the following
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* functionalities of the FLASH peripheral:
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* + Extended Initialization/de-initialization functions
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* + Extended I/O operation functions
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* + Extended Peripheral Control functions
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*
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@verbatim
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==============================================================================
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##### Flash peripheral extended features #####
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==============================================================================
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##### How to use this driver #####
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==============================================================================
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[..] This driver provides functions to configure and program the FLASH memory
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of all STM32F1xxx devices. It includes
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(++) Set/Reset the write protection
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(++) Program the user Option Bytes
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(++) Get the Read protection Level
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@endverbatim
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f1xx_hal.h"
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/** @addtogroup STM32F1xx_HAL_Driver
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* @{
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*/
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#ifdef HAL_FLASH_MODULE_ENABLED
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/** @addtogroup FLASH
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* @{
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*/
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/** @addtogroup FLASH_Private_Variables
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* @{
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*/
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/* Variables used for Erase pages under interruption*/
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extern FLASH_ProcessTypeDef pFlash;
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/**
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* @}
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*/
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/**
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* @}
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*/
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/** @defgroup FLASHEx FLASHEx
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* @brief FLASH HAL Extension module driver
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/** @defgroup FLASHEx_Private_Constants FLASHEx Private Constants
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* @{
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*/
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#define FLASH_POSITION_IWDGSW_BIT FLASH_OBR_IWDG_SW_Pos
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#define FLASH_POSITION_OB_USERDATA0_BIT FLASH_OBR_DATA0_Pos
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#define FLASH_POSITION_OB_USERDATA1_BIT FLASH_OBR_DATA1_Pos
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/**
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* @}
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*/
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/* Private macro -------------------------------------------------------------*/
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/** @defgroup FLASHEx_Private_Macros FLASHEx Private Macros
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* @{
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*/
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/**
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* @}
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*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/** @defgroup FLASHEx_Private_Functions FLASHEx Private Functions
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* @{
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*/
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/* Erase operations */
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static void FLASH_MassErase(uint32_t Banks);
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void FLASH_PageErase(uint32_t PageAddress);
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/* Option bytes control */
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static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WriteProtectPage);
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static HAL_StatusTypeDef FLASH_OB_DisableWRP(uint32_t WriteProtectPage);
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static HAL_StatusTypeDef FLASH_OB_RDP_LevelConfig(uint8_t ReadProtectLevel);
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static HAL_StatusTypeDef FLASH_OB_UserConfig(uint8_t UserConfig);
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static HAL_StatusTypeDef FLASH_OB_ProgramData(uint32_t Address, uint8_t Data);
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static uint32_t FLASH_OB_GetWRP(void);
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static uint32_t FLASH_OB_GetRDP(void);
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static uint8_t FLASH_OB_GetUser(void);
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/**
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* @}
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*/
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/* Exported functions ---------------------------------------------------------*/
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/** @defgroup FLASHEx_Exported_Functions FLASHEx Exported Functions
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* @{
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*/
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/** @defgroup FLASHEx_Exported_Functions_Group1 FLASHEx Memory Erasing functions
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* @brief FLASH Memory Erasing functions
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*
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@verbatim
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==============================================================================
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##### FLASH Erasing Programming functions #####
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==============================================================================
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[..] The FLASH Memory Erasing functions, includes the following functions:
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(+) @ref HAL_FLASHEx_Erase: return only when erase has been done
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(+) @ref HAL_FLASHEx_Erase_IT: end of erase is done when @ref HAL_FLASH_EndOfOperationCallback
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is called with parameter 0xFFFFFFFF
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[..] Any operation of erase should follow these steps:
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(#) Call the @ref HAL_FLASH_Unlock() function to enable the flash control register and
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program memory access.
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(#) Call the desired function to erase page.
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(#) Call the @ref HAL_FLASH_Lock() to disable the flash program memory access
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(recommended to protect the FLASH memory against possible unwanted operation).
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@endverbatim
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* @{
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*/
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/**
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* @brief Perform a mass erase or erase the specified FLASH memory pages
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* @note To correctly run this function, the @ref HAL_FLASH_Unlock() function
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* must be called before.
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* Call the @ref HAL_FLASH_Lock() to disable the flash memory access
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* (recommended to protect the FLASH memory against possible unwanted operation)
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* @param[in] pEraseInit pointer to an FLASH_EraseInitTypeDef structure that
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* contains the configuration information for the erasing.
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*
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* @param[out] PageError pointer to variable that
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* contains the configuration information on faulty page in case of error
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* (0xFFFFFFFF means that all the pages have been correctly erased)
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*
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* @retval HAL_StatusTypeDef HAL Status
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*/
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HAL_StatusTypeDef HAL_FLASHEx_Erase(FLASH_EraseInitTypeDef *pEraseInit, uint32_t *PageError)
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{
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HAL_StatusTypeDef status = HAL_ERROR;
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uint32_t address = 0U;
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/* Process Locked */
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__HAL_LOCK(&pFlash);
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/* Check the parameters */
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assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase));
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if (pEraseInit->TypeErase == FLASH_TYPEERASE_MASSERASE)
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{
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#if defined(FLASH_BANK2_END)
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if (pEraseInit->Banks == FLASH_BANK_BOTH)
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{
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/* Mass Erase requested for Bank1 and Bank2 */
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/* Wait for last operation to be completed */
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if ((FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK) && \
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(FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK))
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{
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/*Mass erase to be done*/
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FLASH_MassErase(FLASH_BANK_BOTH);
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/* Wait for last operation to be completed */
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if ((FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK) && \
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(FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK))
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{
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status = HAL_OK;
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}
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/* If the erase operation is completed, disable the MER Bit */
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CLEAR_BIT(FLASH->CR, FLASH_CR_MER);
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CLEAR_BIT(FLASH->CR2, FLASH_CR2_MER);
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}
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}
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else if (pEraseInit->Banks == FLASH_BANK_2)
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{
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/* Mass Erase requested for Bank2 */
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/* Wait for last operation to be completed */
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if (FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK)
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{
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/*Mass erase to be done*/
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FLASH_MassErase(FLASH_BANK_2);
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/* Wait for last operation to be completed */
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status = FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE);
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/* If the erase operation is completed, disable the MER Bit */
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CLEAR_BIT(FLASH->CR2, FLASH_CR2_MER);
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}
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}
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else
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#endif /* FLASH_BANK2_END */
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{
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/* Mass Erase requested for Bank1 */
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/* Wait for last operation to be completed */
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if (FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK)
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{
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/*Mass erase to be done*/
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FLASH_MassErase(FLASH_BANK_1);
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/* Wait for last operation to be completed */
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status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
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/* If the erase operation is completed, disable the MER Bit */
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CLEAR_BIT(FLASH->CR, FLASH_CR_MER);
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}
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}
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}
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else
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{
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/* Page Erase is requested */
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/* Check the parameters */
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assert_param(IS_FLASH_PROGRAM_ADDRESS(pEraseInit->PageAddress));
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assert_param(IS_FLASH_NB_PAGES(pEraseInit->PageAddress, pEraseInit->NbPages));
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#if defined(FLASH_BANK2_END)
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/* Page Erase requested on address located on bank2 */
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if(pEraseInit->PageAddress > FLASH_BANK1_END)
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{
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/* Wait for last operation to be completed */
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if (FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK)
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{
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/*Initialization of PageError variable*/
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*PageError = 0xFFFFFFFFU;
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/* Erase by page by page to be done*/
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for(address = pEraseInit->PageAddress;
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address < (pEraseInit->PageAddress + (pEraseInit->NbPages)*FLASH_PAGE_SIZE);
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address += FLASH_PAGE_SIZE)
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{
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FLASH_PageErase(address);
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/* Wait for last operation to be completed */
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status = FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE);
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/* If the erase operation is completed, disable the PER Bit */
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CLEAR_BIT(FLASH->CR2, FLASH_CR2_PER);
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if (status != HAL_OK)
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{
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/* In case of error, stop erase procedure and return the faulty address */
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*PageError = address;
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break;
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}
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}
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}
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}
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else
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#endif /* FLASH_BANK2_END */
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{
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/* Page Erase requested on address located on bank1 */
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/* Wait for last operation to be completed */
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if (FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK)
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{
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/*Initialization of PageError variable*/
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*PageError = 0xFFFFFFFFU;
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/* Erase page by page to be done*/
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for(address = pEraseInit->PageAddress;
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address < ((pEraseInit->NbPages * FLASH_PAGE_SIZE) + pEraseInit->PageAddress);
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address += FLASH_PAGE_SIZE)
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{
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FLASH_PageErase(address);
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/* Wait for last operation to be completed */
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status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
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/* If the erase operation is completed, disable the PER Bit */
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CLEAR_BIT(FLASH->CR, FLASH_CR_PER);
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if (status != HAL_OK)
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{
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/* In case of error, stop erase procedure and return the faulty address */
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*PageError = address;
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break;
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}
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}
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}
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}
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}
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/* Process Unlocked */
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__HAL_UNLOCK(&pFlash);
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return status;
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}
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/**
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* @brief Perform a mass erase or erase the specified FLASH memory pages with interrupt enabled
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* @note To correctly run this function, the @ref HAL_FLASH_Unlock() function
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* must be called before.
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* Call the @ref HAL_FLASH_Lock() to disable the flash memory access
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* (recommended to protect the FLASH memory against possible unwanted operation)
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* @param pEraseInit pointer to an FLASH_EraseInitTypeDef structure that
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* contains the configuration information for the erasing.
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*
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* @retval HAL_StatusTypeDef HAL Status
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*/
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HAL_StatusTypeDef HAL_FLASHEx_Erase_IT(FLASH_EraseInitTypeDef *pEraseInit)
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{
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HAL_StatusTypeDef status = HAL_OK;
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/* Process Locked */
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__HAL_LOCK(&pFlash);
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/* If procedure already ongoing, reject the next one */
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if (pFlash.ProcedureOnGoing != FLASH_PROC_NONE)
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{
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return HAL_ERROR;
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}
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/* Check the parameters */
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assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase));
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/* Enable End of FLASH Operation and Error source interrupts */
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__HAL_FLASH_ENABLE_IT(FLASH_IT_EOP | FLASH_IT_ERR);
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#if defined(FLASH_BANK2_END)
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/* Enable End of FLASH Operation and Error source interrupts */
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__HAL_FLASH_ENABLE_IT(FLASH_IT_EOP_BANK2 | FLASH_IT_ERR_BANK2);
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#endif
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if (pEraseInit->TypeErase == FLASH_TYPEERASE_MASSERASE)
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{
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/*Mass erase to be done*/
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pFlash.ProcedureOnGoing = FLASH_PROC_MASSERASE;
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FLASH_MassErase(pEraseInit->Banks);
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}
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else
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{
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/* Erase by page to be done*/
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/* Check the parameters */
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assert_param(IS_FLASH_PROGRAM_ADDRESS(pEraseInit->PageAddress));
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assert_param(IS_FLASH_NB_PAGES(pEraseInit->PageAddress, pEraseInit->NbPages));
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pFlash.ProcedureOnGoing = FLASH_PROC_PAGEERASE;
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pFlash.DataRemaining = pEraseInit->NbPages;
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pFlash.Address = pEraseInit->PageAddress;
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/*Erase 1st page and wait for IT*/
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FLASH_PageErase(pEraseInit->PageAddress);
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}
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return status;
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}
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/**
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* @}
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*/
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/** @defgroup FLASHEx_Exported_Functions_Group2 Option Bytes Programming functions
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* @brief Option Bytes Programming functions
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*
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@verbatim
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==============================================================================
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##### Option Bytes Programming functions #####
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==============================================================================
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[..]
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This subsection provides a set of functions allowing to control the FLASH
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option bytes operations.
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@endverbatim
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* @{
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*/
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/**
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* @brief Erases the FLASH option bytes.
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* @note This functions erases all option bytes except the Read protection (RDP).
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* The function @ref HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
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* The function @ref HAL_FLASH_OB_Unlock() should be called before to unlock the options bytes
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* The function @ref HAL_FLASH_OB_Launch() should be called after to force the reload of the options bytes
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* (system reset will occur)
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_FLASHEx_OBErase(void)
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{
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uint8_t rdptmp = OB_RDP_LEVEL_0;
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HAL_StatusTypeDef status = HAL_ERROR;
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/* Get the actual read protection Option Byte value */
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rdptmp = FLASH_OB_GetRDP();
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/* Wait for last operation to be completed */
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status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
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if(status == HAL_OK)
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{
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/* Clean the error context */
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pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
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/* If the previous operation is completed, proceed to erase the option bytes */
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SET_BIT(FLASH->CR, FLASH_CR_OPTER);
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SET_BIT(FLASH->CR, FLASH_CR_STRT);
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/* Wait for last operation to be completed */
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status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
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/* If the erase operation is completed, disable the OPTER Bit */
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CLEAR_BIT(FLASH->CR, FLASH_CR_OPTER);
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if(status == HAL_OK)
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{
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/* Restore the last read protection Option Byte value */
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status = FLASH_OB_RDP_LevelConfig(rdptmp);
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}
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}
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/* Return the erase status */
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return status;
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}
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/**
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* @brief Program option bytes
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* @note The function @ref HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
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* The function @ref HAL_FLASH_OB_Unlock() should be called before to unlock the options bytes
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* The function @ref HAL_FLASH_OB_Launch() should be called after to force the reload of the options bytes
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* (system reset will occur)
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*
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* @param pOBInit pointer to an FLASH_OBInitStruct structure that
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* contains the configuration information for the programming.
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*
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* @retval HAL_StatusTypeDef HAL Status
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*/
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HAL_StatusTypeDef HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit)
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{
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HAL_StatusTypeDef status = HAL_ERROR;
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/* Process Locked */
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__HAL_LOCK(&pFlash);
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/* Check the parameters */
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assert_param(IS_OPTIONBYTE(pOBInit->OptionType));
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/* Write protection configuration */
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if((pOBInit->OptionType & OPTIONBYTE_WRP) == OPTIONBYTE_WRP)
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{
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assert_param(IS_WRPSTATE(pOBInit->WRPState));
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if (pOBInit->WRPState == OB_WRPSTATE_ENABLE)
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{
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/* Enable of Write protection on the selected page */
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status = FLASH_OB_EnableWRP(pOBInit->WRPPage);
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}
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else
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{
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/* Disable of Write protection on the selected page */
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status = FLASH_OB_DisableWRP(pOBInit->WRPPage);
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}
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if (status != HAL_OK)
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{
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/* Process Unlocked */
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__HAL_UNLOCK(&pFlash);
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return status;
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}
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}
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/* Read protection configuration */
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if((pOBInit->OptionType & OPTIONBYTE_RDP) == OPTIONBYTE_RDP)
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{
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status = FLASH_OB_RDP_LevelConfig(pOBInit->RDPLevel);
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if (status != HAL_OK)
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{
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/* Process Unlocked */
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__HAL_UNLOCK(&pFlash);
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return status;
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}
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}
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/* USER configuration */
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if((pOBInit->OptionType & OPTIONBYTE_USER) == OPTIONBYTE_USER)
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{
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status = FLASH_OB_UserConfig(pOBInit->USERConfig);
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if (status != HAL_OK)
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{
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/* Process Unlocked */
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__HAL_UNLOCK(&pFlash);
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return status;
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}
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}
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/* DATA configuration*/
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if((pOBInit->OptionType & OPTIONBYTE_DATA) == OPTIONBYTE_DATA)
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{
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status = FLASH_OB_ProgramData(pOBInit->DATAAddress, pOBInit->DATAData);
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if (status != HAL_OK)
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{
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/* Process Unlocked */
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__HAL_UNLOCK(&pFlash);
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return status;
|
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}
|
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}
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|
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/* Process Unlocked */
|
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__HAL_UNLOCK(&pFlash);
|
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|
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return status;
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}
|
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|
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/**
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* @brief Get the Option byte configuration
|
|
* @param pOBInit pointer to an FLASH_OBInitStruct structure that
|
|
* contains the configuration information for the programming.
|
|
*
|
|
* @retval None
|
|
*/
|
|
void HAL_FLASHEx_OBGetConfig(FLASH_OBProgramInitTypeDef *pOBInit)
|
|
{
|
|
pOBInit->OptionType = OPTIONBYTE_WRP | OPTIONBYTE_RDP | OPTIONBYTE_USER;
|
|
|
|
/*Get WRP*/
|
|
pOBInit->WRPPage = FLASH_OB_GetWRP();
|
|
|
|
/*Get RDP Level*/
|
|
pOBInit->RDPLevel = FLASH_OB_GetRDP();
|
|
|
|
/*Get USER*/
|
|
pOBInit->USERConfig = FLASH_OB_GetUser();
|
|
}
|
|
|
|
/**
|
|
* @brief Get the Option byte user data
|
|
* @param DATAAdress Address of the option byte DATA
|
|
* This parameter can be one of the following values:
|
|
* @arg @ref OB_DATA_ADDRESS_DATA0
|
|
* @arg @ref OB_DATA_ADDRESS_DATA1
|
|
* @retval Value programmed in USER data
|
|
*/
|
|
uint32_t HAL_FLASHEx_OBGetUserData(uint32_t DATAAdress)
|
|
{
|
|
uint32_t value = 0;
|
|
|
|
if (DATAAdress == OB_DATA_ADDRESS_DATA0)
|
|
{
|
|
/* Get value programmed in OB USER Data0 */
|
|
value = READ_BIT(FLASH->OBR, FLASH_OBR_DATA0) >> FLASH_POSITION_OB_USERDATA0_BIT;
|
|
}
|
|
else
|
|
{
|
|
/* Get value programmed in OB USER Data1 */
|
|
value = READ_BIT(FLASH->OBR, FLASH_OBR_DATA1) >> FLASH_POSITION_OB_USERDATA1_BIT;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @addtogroup FLASHEx_Private_Functions
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Full erase of FLASH memory Bank
|
|
* @param Banks Banks to be erased
|
|
* This parameter can be one of the following values:
|
|
* @arg @ref FLASH_BANK_1 Bank1 to be erased
|
|
@if STM32F101xG
|
|
* @arg @ref FLASH_BANK_2 Bank2 to be erased
|
|
* @arg @ref FLASH_BANK_BOTH Bank1 and Bank2 to be erased
|
|
@endif
|
|
@if STM32F103xG
|
|
* @arg @ref FLASH_BANK_2 Bank2 to be erased
|
|
* @arg @ref FLASH_BANK_BOTH Bank1 and Bank2 to be erased
|
|
@endif
|
|
*
|
|
* @retval None
|
|
*/
|
|
static void FLASH_MassErase(uint32_t Banks)
|
|
{
|
|
/* Check the parameters */
|
|
assert_param(IS_FLASH_BANK(Banks));
|
|
|
|
/* Clean the error context */
|
|
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
|
|
|
|
#if defined(FLASH_BANK2_END)
|
|
if(Banks == FLASH_BANK_BOTH)
|
|
{
|
|
/* bank1 & bank2 will be erased*/
|
|
SET_BIT(FLASH->CR, FLASH_CR_MER);
|
|
SET_BIT(FLASH->CR2, FLASH_CR2_MER);
|
|
SET_BIT(FLASH->CR, FLASH_CR_STRT);
|
|
SET_BIT(FLASH->CR2, FLASH_CR2_STRT);
|
|
}
|
|
else if(Banks == FLASH_BANK_2)
|
|
{
|
|
/*Only bank2 will be erased*/
|
|
SET_BIT(FLASH->CR2, FLASH_CR2_MER);
|
|
SET_BIT(FLASH->CR2, FLASH_CR2_STRT);
|
|
}
|
|
else
|
|
{
|
|
#endif /* FLASH_BANK2_END */
|
|
#if !defined(FLASH_BANK2_END)
|
|
/* Prevent unused argument(s) compilation warning */
|
|
UNUSED(Banks);
|
|
#endif /* FLASH_BANK2_END */
|
|
/* Only bank1 will be erased*/
|
|
SET_BIT(FLASH->CR, FLASH_CR_MER);
|
|
SET_BIT(FLASH->CR, FLASH_CR_STRT);
|
|
#if defined(FLASH_BANK2_END)
|
|
}
|
|
#endif /* FLASH_BANK2_END */
|
|
}
|
|
|
|
/**
|
|
* @brief Enable the write protection of the desired pages
|
|
* @note An option byte erase is done automatically in this function.
|
|
* @note When the memory read protection level is selected (RDP level = 1),
|
|
* it is not possible to program or erase the flash page i if
|
|
* debug features are connected or boot code is executed in RAM, even if nWRPi = 1
|
|
*
|
|
* @param WriteProtectPage specifies the page(s) to be write protected.
|
|
* The value of this parameter depend on device used within the same series
|
|
* @retval HAL status
|
|
*/
|
|
static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WriteProtectPage)
|
|
{
|
|
HAL_StatusTypeDef status = HAL_OK;
|
|
uint16_t WRP0_Data = 0xFFFF;
|
|
#if defined(FLASH_WRP1_WRP1)
|
|
uint16_t WRP1_Data = 0xFFFF;
|
|
#endif /* FLASH_WRP1_WRP1 */
|
|
#if defined(FLASH_WRP2_WRP2)
|
|
uint16_t WRP2_Data = 0xFFFF;
|
|
#endif /* FLASH_WRP2_WRP2 */
|
|
#if defined(FLASH_WRP3_WRP3)
|
|
uint16_t WRP3_Data = 0xFFFF;
|
|
#endif /* FLASH_WRP3_WRP3 */
|
|
|
|
/* Check the parameters */
|
|
assert_param(IS_OB_WRP(WriteProtectPage));
|
|
|
|
/* Get current write protected pages and the new pages to be protected ******/
|
|
WriteProtectPage = (uint32_t)(~((~FLASH_OB_GetWRP()) | WriteProtectPage));
|
|
|
|
#if defined(OB_WRP_PAGES0TO15MASK)
|
|
WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO15MASK);
|
|
#elif defined(OB_WRP_PAGES0TO31MASK)
|
|
WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO31MASK);
|
|
#endif /* OB_WRP_PAGES0TO31MASK */
|
|
|
|
#if defined(OB_WRP_PAGES16TO31MASK)
|
|
WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES16TO31MASK) >> 8U);
|
|
#elif defined(OB_WRP_PAGES32TO63MASK)
|
|
WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO63MASK) >> 8U);
|
|
#endif /* OB_WRP_PAGES32TO63MASK */
|
|
|
|
#if defined(OB_WRP_PAGES64TO95MASK)
|
|
WRP2_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES64TO95MASK) >> 16U);
|
|
#endif /* OB_WRP_PAGES64TO95MASK */
|
|
#if defined(OB_WRP_PAGES32TO47MASK)
|
|
WRP2_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO47MASK) >> 16U);
|
|
#endif /* OB_WRP_PAGES32TO47MASK */
|
|
|
|
#if defined(OB_WRP_PAGES96TO127MASK)
|
|
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES96TO127MASK) >> 24U);
|
|
#elif defined(OB_WRP_PAGES48TO255MASK)
|
|
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO255MASK) >> 24U);
|
|
#elif defined(OB_WRP_PAGES48TO511MASK)
|
|
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO511MASK) >> 24U);
|
|
#elif defined(OB_WRP_PAGES48TO127MASK)
|
|
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO127MASK) >> 24U);
|
|
#endif /* OB_WRP_PAGES96TO127MASK */
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
|
|
if(status == HAL_OK)
|
|
{
|
|
/* Clean the error context */
|
|
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
|
|
|
|
/* To be able to write again option byte, need to perform a option byte erase */
|
|
status = HAL_FLASHEx_OBErase();
|
|
if (status == HAL_OK)
|
|
{
|
|
/* Enable write protection */
|
|
SET_BIT(FLASH->CR, FLASH_CR_OPTPG);
|
|
|
|
#if defined(FLASH_WRP0_WRP0)
|
|
if(WRP0_Data != 0xFFU)
|
|
{
|
|
OB->WRP0 &= WRP0_Data;
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
}
|
|
#endif /* FLASH_WRP0_WRP0 */
|
|
|
|
#if defined(FLASH_WRP1_WRP1)
|
|
if((status == HAL_OK) && (WRP1_Data != 0xFFU))
|
|
{
|
|
OB->WRP1 &= WRP1_Data;
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
}
|
|
#endif /* FLASH_WRP1_WRP1 */
|
|
|
|
#if defined(FLASH_WRP2_WRP2)
|
|
if((status == HAL_OK) && (WRP2_Data != 0xFFU))
|
|
{
|
|
OB->WRP2 &= WRP2_Data;
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
}
|
|
#endif /* FLASH_WRP2_WRP2 */
|
|
|
|
#if defined(FLASH_WRP3_WRP3)
|
|
if((status == HAL_OK) && (WRP3_Data != 0xFFU))
|
|
{
|
|
OB->WRP3 &= WRP3_Data;
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
}
|
|
#endif /* FLASH_WRP3_WRP3 */
|
|
|
|
/* if the program operation is completed, disable the OPTPG Bit */
|
|
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG);
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Disable the write protection of the desired pages
|
|
* @note An option byte erase is done automatically in this function.
|
|
* @note When the memory read protection level is selected (RDP level = 1),
|
|
* it is not possible to program or erase the flash page i if
|
|
* debug features are connected or boot code is executed in RAM, even if nWRPi = 1
|
|
*
|
|
* @param WriteProtectPage specifies the page(s) to be write unprotected.
|
|
* The value of this parameter depend on device used within the same series
|
|
* @retval HAL status
|
|
*/
|
|
static HAL_StatusTypeDef FLASH_OB_DisableWRP(uint32_t WriteProtectPage)
|
|
{
|
|
HAL_StatusTypeDef status = HAL_OK;
|
|
uint16_t WRP0_Data = 0xFFFF;
|
|
#if defined(FLASH_WRP1_WRP1)
|
|
uint16_t WRP1_Data = 0xFFFF;
|
|
#endif /* FLASH_WRP1_WRP1 */
|
|
#if defined(FLASH_WRP2_WRP2)
|
|
uint16_t WRP2_Data = 0xFFFF;
|
|
#endif /* FLASH_WRP2_WRP2 */
|
|
#if defined(FLASH_WRP3_WRP3)
|
|
uint16_t WRP3_Data = 0xFFFF;
|
|
#endif /* FLASH_WRP3_WRP3 */
|
|
|
|
/* Check the parameters */
|
|
assert_param(IS_OB_WRP(WriteProtectPage));
|
|
|
|
/* Get current write protected pages and the new pages to be unprotected ******/
|
|
WriteProtectPage = (FLASH_OB_GetWRP() | WriteProtectPage);
|
|
|
|
#if defined(OB_WRP_PAGES0TO15MASK)
|
|
WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO15MASK);
|
|
#elif defined(OB_WRP_PAGES0TO31MASK)
|
|
WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO31MASK);
|
|
#endif /* OB_WRP_PAGES0TO31MASK */
|
|
|
|
#if defined(OB_WRP_PAGES16TO31MASK)
|
|
WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES16TO31MASK) >> 8U);
|
|
#elif defined(OB_WRP_PAGES32TO63MASK)
|
|
WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO63MASK) >> 8U);
|
|
#endif /* OB_WRP_PAGES32TO63MASK */
|
|
|
|
#if defined(OB_WRP_PAGES64TO95MASK)
|
|
WRP2_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES64TO95MASK) >> 16U);
|
|
#endif /* OB_WRP_PAGES64TO95MASK */
|
|
#if defined(OB_WRP_PAGES32TO47MASK)
|
|
WRP2_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO47MASK) >> 16U);
|
|
#endif /* OB_WRP_PAGES32TO47MASK */
|
|
|
|
#if defined(OB_WRP_PAGES96TO127MASK)
|
|
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES96TO127MASK) >> 24U);
|
|
#elif defined(OB_WRP_PAGES48TO255MASK)
|
|
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO255MASK) >> 24U);
|
|
#elif defined(OB_WRP_PAGES48TO511MASK)
|
|
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO511MASK) >> 24U);
|
|
#elif defined(OB_WRP_PAGES48TO127MASK)
|
|
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO127MASK) >> 24U);
|
|
#endif /* OB_WRP_PAGES96TO127MASK */
|
|
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
|
|
if(status == HAL_OK)
|
|
{
|
|
/* Clean the error context */
|
|
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
|
|
|
|
/* To be able to write again option byte, need to perform a option byte erase */
|
|
status = HAL_FLASHEx_OBErase();
|
|
if (status == HAL_OK)
|
|
{
|
|
SET_BIT(FLASH->CR, FLASH_CR_OPTPG);
|
|
|
|
#if defined(FLASH_WRP0_WRP0)
|
|
if(WRP0_Data != 0xFFU)
|
|
{
|
|
OB->WRP0 |= WRP0_Data;
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
}
|
|
#endif /* FLASH_WRP0_WRP0 */
|
|
|
|
#if defined(FLASH_WRP1_WRP1)
|
|
if((status == HAL_OK) && (WRP1_Data != 0xFFU))
|
|
{
|
|
OB->WRP1 |= WRP1_Data;
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
}
|
|
#endif /* FLASH_WRP1_WRP1 */
|
|
|
|
#if defined(FLASH_WRP2_WRP2)
|
|
if((status == HAL_OK) && (WRP2_Data != 0xFFU))
|
|
{
|
|
OB->WRP2 |= WRP2_Data;
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
}
|
|
#endif /* FLASH_WRP2_WRP2 */
|
|
|
|
#if defined(FLASH_WRP3_WRP3)
|
|
if((status == HAL_OK) && (WRP3_Data != 0xFFU))
|
|
{
|
|
OB->WRP3 |= WRP3_Data;
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
}
|
|
#endif /* FLASH_WRP3_WRP3 */
|
|
|
|
/* if the program operation is completed, disable the OPTPG Bit */
|
|
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG);
|
|
}
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Set the read protection level.
|
|
* @param ReadProtectLevel specifies the read protection level.
|
|
* This parameter can be one of the following values:
|
|
* @arg @ref OB_RDP_LEVEL_0 No protection
|
|
* @arg @ref OB_RDP_LEVEL_1 Read protection of the memory
|
|
* @retval HAL status
|
|
*/
|
|
static HAL_StatusTypeDef FLASH_OB_RDP_LevelConfig(uint8_t ReadProtectLevel)
|
|
{
|
|
HAL_StatusTypeDef status = HAL_OK;
|
|
|
|
/* Check the parameters */
|
|
assert_param(IS_OB_RDP_LEVEL(ReadProtectLevel));
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
|
|
if(status == HAL_OK)
|
|
{
|
|
/* Clean the error context */
|
|
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
|
|
|
|
/* If the previous operation is completed, proceed to erase the option bytes */
|
|
SET_BIT(FLASH->CR, FLASH_CR_OPTER);
|
|
SET_BIT(FLASH->CR, FLASH_CR_STRT);
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
|
|
/* If the erase operation is completed, disable the OPTER Bit */
|
|
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTER);
|
|
|
|
if(status == HAL_OK)
|
|
{
|
|
/* Enable the Option Bytes Programming operation */
|
|
SET_BIT(FLASH->CR, FLASH_CR_OPTPG);
|
|
|
|
WRITE_REG(OB->RDP, ReadProtectLevel);
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
|
|
/* if the program operation is completed, disable the OPTPG Bit */
|
|
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG);
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Program the FLASH User Option Byte.
|
|
* @note Programming of the OB should be performed only after an erase (otherwise PGERR occurs)
|
|
* @param UserConfig The FLASH User Option Bytes values FLASH_OBR_IWDG_SW(Bit2),
|
|
* FLASH_OBR_nRST_STOP(Bit3),FLASH_OBR_nRST_STDBY(Bit4).
|
|
* And BFBF2(Bit5) for STM32F101xG and STM32F103xG .
|
|
* @retval HAL status
|
|
*/
|
|
static HAL_StatusTypeDef FLASH_OB_UserConfig(uint8_t UserConfig)
|
|
{
|
|
HAL_StatusTypeDef status = HAL_OK;
|
|
|
|
/* Check the parameters */
|
|
assert_param(IS_OB_IWDG_SOURCE((UserConfig&OB_IWDG_SW)));
|
|
assert_param(IS_OB_STOP_SOURCE((UserConfig&OB_STOP_NO_RST)));
|
|
assert_param(IS_OB_STDBY_SOURCE((UserConfig&OB_STDBY_NO_RST)));
|
|
#if defined(FLASH_BANK2_END)
|
|
assert_param(IS_OB_BOOT1((UserConfig&OB_BOOT1_SET)));
|
|
#endif /* FLASH_BANK2_END */
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
|
|
if(status == HAL_OK)
|
|
{
|
|
/* Clean the error context */
|
|
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
|
|
|
|
/* Enable the Option Bytes Programming operation */
|
|
SET_BIT(FLASH->CR, FLASH_CR_OPTPG);
|
|
|
|
#if defined(FLASH_BANK2_END)
|
|
OB->USER = (UserConfig | 0xF0U);
|
|
#else
|
|
OB->USER = (UserConfig | 0x88U);
|
|
#endif /* FLASH_BANK2_END */
|
|
|
|
/* Wait for last operation to be completed */
|
|
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
|
|
|
|
/* if the program operation is completed, disable the OPTPG Bit */
|
|
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
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* @brief Programs a half word at a specified Option Byte Data address.
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* @note The function @ref HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
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* The function @ref HAL_FLASH_OB_Unlock() should be called before to unlock the options bytes
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* The function @ref HAL_FLASH_OB_Launch() should be called after to force the reload of the options bytes
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* (system reset will occur)
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* Programming of the OB should be performed only after an erase (otherwise PGERR occurs)
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* @param Address specifies the address to be programmed.
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* This parameter can be 0x1FFFF804 or 0x1FFFF806.
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* @param Data specifies the data to be programmed.
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* @retval HAL status
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*/
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static HAL_StatusTypeDef FLASH_OB_ProgramData(uint32_t Address, uint8_t Data)
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{
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HAL_StatusTypeDef status = HAL_ERROR;
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/* Check the parameters */
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assert_param(IS_OB_DATA_ADDRESS(Address));
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/* Wait for last operation to be completed */
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status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
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if(status == HAL_OK)
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{
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/* Clean the error context */
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pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
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/* Enables the Option Bytes Programming operation */
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SET_BIT(FLASH->CR, FLASH_CR_OPTPG);
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*(__IO uint16_t*)Address = Data;
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/* Wait for last operation to be completed */
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status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
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/* If the program operation is completed, disable the OPTPG Bit */
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CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG);
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}
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/* Return the Option Byte Data Program Status */
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return status;
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}
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/**
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* @brief Return the FLASH Write Protection Option Bytes value.
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* @retval The FLASH Write Protection Option Bytes value
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*/
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static uint32_t FLASH_OB_GetWRP(void)
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{
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/* Return the FLASH write protection Register value */
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return (uint32_t)(READ_REG(FLASH->WRPR));
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}
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/**
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* @brief Returns the FLASH Read Protection level.
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* @retval FLASH RDP level
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* This parameter can be one of the following values:
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* @arg @ref OB_RDP_LEVEL_0 No protection
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* @arg @ref OB_RDP_LEVEL_1 Read protection of the memory
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*/
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static uint32_t FLASH_OB_GetRDP(void)
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{
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uint32_t readstatus = OB_RDP_LEVEL_0;
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uint32_t tmp_reg = 0U;
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|
|
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/* Read RDP level bits */
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tmp_reg = READ_BIT(FLASH->OBR, FLASH_OBR_RDPRT);
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if (tmp_reg == FLASH_OBR_RDPRT)
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{
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readstatus = OB_RDP_LEVEL_1;
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}
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else
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{
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readstatus = OB_RDP_LEVEL_0;
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}
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return readstatus;
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}
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/**
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* @brief Return the FLASH User Option Byte value.
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|
* @retval The FLASH User Option Bytes values: FLASH_OBR_IWDG_SW(Bit2),
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* FLASH_OBR_nRST_STOP(Bit3),FLASH_OBR_nRST_STDBY(Bit4).
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* And FLASH_OBR_BFB2(Bit5) for STM32F101xG and STM32F103xG .
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*/
|
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static uint8_t FLASH_OB_GetUser(void)
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|
{
|
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/* Return the User Option Byte */
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return (uint8_t)((READ_REG(FLASH->OBR) & FLASH_OBR_USER) >> FLASH_POSITION_IWDGSW_BIT);
|
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}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @addtogroup FLASH
|
|
* @{
|
|
*/
|
|
|
|
/** @addtogroup FLASH_Private_Functions
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Erase the specified FLASH memory page
|
|
* @param PageAddress FLASH page to erase
|
|
* The value of this parameter depend on device used within the same series
|
|
*
|
|
* @retval None
|
|
*/
|
|
void FLASH_PageErase(uint32_t PageAddress)
|
|
{
|
|
/* Clean the error context */
|
|
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
|
|
|
|
#if defined(FLASH_BANK2_END)
|
|
if(PageAddress > FLASH_BANK1_END)
|
|
{
|
|
/* Proceed to erase the page */
|
|
SET_BIT(FLASH->CR2, FLASH_CR2_PER);
|
|
WRITE_REG(FLASH->AR2, PageAddress);
|
|
SET_BIT(FLASH->CR2, FLASH_CR2_STRT);
|
|
}
|
|
else
|
|
{
|
|
#endif /* FLASH_BANK2_END */
|
|
/* Proceed to erase the page */
|
|
SET_BIT(FLASH->CR, FLASH_CR_PER);
|
|
WRITE_REG(FLASH->AR, PageAddress);
|
|
SET_BIT(FLASH->CR, FLASH_CR_STRT);
|
|
#if defined(FLASH_BANK2_END)
|
|
}
|
|
#endif /* FLASH_BANK2_END */
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* HAL_FLASH_MODULE_ENABLED */
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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