| /** |
| ****************************************************************************** |
| * @file stm32l0xx_hal_flash_ex.c |
| * @author MCD Application Team |
| * @brief Extended FLASH HAL module driver. |
| * |
| * This file provides firmware functions to manage the following |
| * functionalities of the internal FLASH memory: |
| * + FLASH Interface configuration |
| * + FLASH Memory Erasing |
| * + DATA EEPROM Programming/Erasing |
| * + Option Bytes Programming |
| * + Interrupts management |
| * |
| @verbatim |
| ============================================================================== |
| ##### Flash peripheral Extended features ##### |
| ============================================================================== |
| |
| [..] Comparing to other products, the FLASH interface for STM32L0xx |
| devices contains the following additional features |
| (+) Erase functions |
| (+) DATA_EEPROM memory management |
| (+) BOOT option bit configuration |
| (+) PCROP protection for all sectors |
| |
| ##### How to use this driver ##### |
| ============================================================================== |
| [..] This driver provides functions to configure and program the FLASH memory |
| of all STM32L0xx. It includes: |
| (+) Full DATA_EEPROM erase and program management |
| (+) Boot activation |
| (+) PCROP protection configuration and control for all pages |
| |
| @endverbatim |
| ****************************************************************************** |
| * @attention |
| * |
| * Copyright (c) 2016 STMicroelectronics. |
| * All rights reserved. |
| * |
| * This software is licensed under terms that can be found in the LICENSE file in |
| * the root directory of this software component. |
| * If no LICENSE file comes with this software, it is provided AS-IS. |
| ****************************************************************************** |
| */ |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32l0xx_hal.h" |
| |
| /** @addtogroup STM32L0xx_HAL_Driver |
| * @{ |
| */ |
| #ifdef HAL_FLASH_MODULE_ENABLED |
| |
| /** @addtogroup FLASH |
| * @{ |
| */ |
| /** @addtogroup FLASH_Private_Variables |
| * @{ |
| */ |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup FLASHEx FLASHEx |
| * @brief FLASH HAL Extension module driver |
| * @{ |
| */ |
| |
| /* Private typedef -----------------------------------------------------------*/ |
| /* Private define ------------------------------------------------------------*/ |
| /** @defgroup FLASHEx_Private_Constants FLASHEx Private Constants |
| * @{ |
| */ |
| /** |
| * @} |
| */ |
| |
| /* Private macro -------------------------------------------------------------*/ |
| /** @defgroup FLASHEx_Private_Macros FLASHEx Private Macros |
| * @{ |
| */ |
| /** |
| * @} |
| */ |
| |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private function prototypes -----------------------------------------------*/ |
| /** @defgroup FLASHEx_Private_Functions FLASHEx Private Functions |
| * @{ |
| */ |
| #if defined(FLASH_OPTR_BFB2) |
| static HAL_StatusTypeDef FLASH_OB_BootConfig(uint8_t OB_BOOT); |
| #endif /* FLASH_OPTR_BFB2 */ |
| static HAL_StatusTypeDef FLASH_OB_RDPConfig(uint8_t OB_RDP); |
| static HAL_StatusTypeDef FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY); |
| static HAL_StatusTypeDef FLASH_OB_BORConfig(uint8_t OB_BOR); |
| static uint8_t FLASH_OB_GetRDP(void); |
| static uint8_t FLASH_OB_GetUser(void); |
| static uint8_t FLASH_OB_GetBOR(void); |
| static uint8_t FLASH_OB_GetBOOTBit1(void); |
| static HAL_StatusTypeDef FLASH_OB_BOOTBit1Config(uint8_t OB_BootBit1); |
| #if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx) |
| static HAL_StatusTypeDef FLASH_OB_ProtectedSectorsConfig(uint32_t Sector, uint32_t Sector2, uint32_t NewState); |
| #else |
| static HAL_StatusTypeDef FLASH_OB_ProtectedSectorsConfig(uint32_t Sector, uint32_t NewState); |
| #endif |
| static uint32_t FLASH_OB_GetWRP(void); |
| #if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx) |
| static uint32_t FLASH_OB_GetWRP2(void); |
| #endif |
| |
| /** |
| * @} |
| */ |
| |
| /* Exported functions ---------------------------------------------------------*/ |
| /** @defgroup FLASHEx_Exported_Functions FLASHEx Exported Functions |
| * @{ |
| */ |
| |
| /** @defgroup FLASHEx_Exported_Functions_Group1 FLASHEx Memory Erasing functions |
| * @brief FLASH Memory Erasing functions |
| * |
| @verbatim |
| ============================================================================== |
| ##### FLASH Erasing Programming functions ##### |
| ============================================================================== |
| |
| [..] The FLASH Memory Erasing functions, includes the following functions: |
| (+) HAL_FLASHEx_Erase: return only when erase has been done |
| (+) HAL_FLASHEx_Erase_IT: end of erase is done when HAL_FLASH_EndOfOperationCallback |
| is called with parameter 0xFFFFFFFF |
| |
| [..] Any operation of erase should follow these steps: |
| (#) Call the HAL_FLASH_Unlock() function to enable the flash control register and |
| program memory access. |
| (#) Call the desired function to erase page. |
| (#) Call the HAL_FLASH_Lock() to disable the flash program memory access |
| (recommended to protect the FLASH memory against possible unwanted operation). |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Erase the specified FLASH memory Pages |
| * @note To correctly run this function, the @ref HAL_FLASH_Unlock() function |
| * must be called before. |
| * Call the @ref HAL_FLASH_Lock() to disable the flash memory access |
| * (recommended to protect the FLASH memory against possible unwanted operation) |
| * @param[in] pEraseInit pointer to an FLASH_EraseInitTypeDef structure that |
| * contains the configuration information for the erasing. |
| * |
| * @param[out] PageError pointer to variable that |
| * contains the configuration information on faulty page in case of error |
| * (0xFFFFFFFF means that all the pages have been correctly erased) |
| * |
| * @retval HAL_StatusTypeDef HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASHEx_Erase(FLASH_EraseInitTypeDef *pEraseInit, uint32_t *PageError) |
| { |
| HAL_StatusTypeDef status = HAL_ERROR; |
| uint32_t address = 0U; |
| |
| /* Process Locked */ |
| __HAL_LOCK(&pFlash); |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| if (status == HAL_OK) |
| { |
| /*Initialization of PageError variable*/ |
| *PageError = 0xFFFFFFFFU; |
| |
| /* Check the parameters */ |
| assert_param(IS_NBPAGES(pEraseInit->NbPages)); |
| assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase)); |
| assert_param(IS_FLASH_PROGRAM_ADDRESS(pEraseInit->PageAddress)); |
| assert_param(IS_FLASH_PROGRAM_ADDRESS((pEraseInit->PageAddress & ~(FLASH_PAGE_SIZE - 1U)) + pEraseInit->NbPages * FLASH_PAGE_SIZE - 1U)); |
| |
| /* Erase page by page to be done*/ |
| for(address = pEraseInit->PageAddress; |
| address < ((pEraseInit->NbPages * FLASH_PAGE_SIZE) + pEraseInit->PageAddress); |
| address += FLASH_PAGE_SIZE) |
| { |
| FLASH_PageErase(address); |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| /* If the erase operation is completed, disable the ERASE Bit */ |
| CLEAR_BIT(FLASH->PECR, FLASH_PECR_PROG); |
| CLEAR_BIT(FLASH->PECR, FLASH_PECR_ERASE); |
| |
| if (status != HAL_OK) |
| { |
| /* In case of error, stop erase procedure and return the faulty address */ |
| *PageError = address; |
| break; |
| } |
| } |
| } |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(&pFlash); |
| |
| return status; |
| } |
| |
| /** |
| * @brief Perform a page erase of the specified FLASH memory pages with interrupt enabled |
| * @note To correctly run this function, the @ref HAL_FLASH_Unlock() function |
| * must be called before. |
| * Call the @ref HAL_FLASH_Lock() to disable the flash memory access |
| * (recommended to protect the FLASH memory against possible unwanted operation) |
| * End of erase is done when @ref HAL_FLASH_EndOfOperationCallback is called with parameter |
| * 0xFFFFFFFF |
| * @param pEraseInit pointer to an FLASH_EraseInitTypeDef structure that |
| * contains the configuration information for the erasing. |
| * |
| * @retval HAL_StatusTypeDef HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASHEx_Erase_IT(FLASH_EraseInitTypeDef *pEraseInit) |
| { |
| HAL_StatusTypeDef status = HAL_ERROR; |
| |
| /* If procedure already ongoing, reject the next one */ |
| if (pFlash.ProcedureOnGoing != FLASH_PROC_NONE) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Check the parameters */ |
| assert_param(IS_NBPAGES(pEraseInit->NbPages)); |
| assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase)); |
| assert_param(IS_FLASH_PROGRAM_ADDRESS(pEraseInit->PageAddress)); |
| assert_param(IS_FLASH_PROGRAM_ADDRESS((pEraseInit->PageAddress & ~(FLASH_PAGE_SIZE - 1)) + pEraseInit->NbPages * FLASH_PAGE_SIZE - 1)); |
| |
| /* Process Locked */ |
| __HAL_LOCK(&pFlash); |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| if (status == HAL_OK) |
| { |
| /* Enable End of FLASH Operation and Error source interrupts */ |
| __HAL_FLASH_ENABLE_IT(FLASH_IT_EOP | FLASH_IT_ERR); |
| |
| pFlash.ProcedureOnGoing = FLASH_PROC_PAGEERASE; |
| pFlash.NbPagesToErase = pEraseInit->NbPages; |
| pFlash.Page = pEraseInit->PageAddress; |
| |
| /*Erase 1st page and wait for IT*/ |
| FLASH_PageErase(pEraseInit->PageAddress); |
| } |
| else |
| { |
| /* Process Unlocked */ |
| __HAL_UNLOCK(&pFlash); |
| } |
| |
| return status; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup FLASHEx_Exported_Functions_Group2 Option Bytes Programming functions |
| * @brief Option Bytes Programming functions |
| * |
| @verbatim |
| ============================================================================== |
| ##### Option Bytes Programming functions ##### |
| ============================================================================== |
| |
| [..] Any operation of erase or program should follow these steps: |
| (#) Call the HAL_FLASH_OB_Unlock() function to enable the Flash option control |
| register access. |
| (#) Call following function to program the desired option bytes. |
| (++) HAL_FLASHEx_OBProgram: |
| - To Enable/Disable the desired sector write protection. |
| - To set the desired read Protection Level. |
| - To configure the user option Bytes: IWDG, STOP and the Standby. |
| - To Set the BOR level. |
| (#) Once all needed option bytes to be programmed are correctly written, call the |
| HAL_FLASH_OB_Launch(void) function to launch the Option Bytes programming process. |
| (#) Call the HAL_FLASH_OB_Lock() to disable the Flash option control register access (recommended |
| to protect the option Bytes against possible unwanted operations). |
| |
| [..] Proprietary code Read Out Protection (PcROP): |
| (#) The PcROP sector is selected by using the same option bytes as the Write |
| protection (nWRPi bits). As a result, these 2 options are exclusive each other. |
| (#) In order to activate the PcROP (change the function of the nWRPi option bits), |
| the WPRMOD option bit must be activated. |
| (#) The active value of nWRPi bits is inverted when PCROP mode is active, this |
| means: if WPRMOD = 1 and nWRPi = 1 (default value), then the user sector "i" |
| is read/write protected. |
| (#) To activate PCROP mode for Flash sector(s), you need to call the following function: |
| (++) HAL_FLASHEx_AdvOBProgram in selecting sectors to be read/write protected |
| (++) HAL_FLASHEx_OB_SelectPCROP to enable the read/write protection |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Program option bytes |
| * @param pOBInit pointer to an FLASH_OBInitStruct structure that |
| * contains the configuration information for the programming. |
| * |
| * @retval HAL_StatusTypeDef HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit) |
| { |
| HAL_StatusTypeDef status = HAL_ERROR; |
| |
| /* Process Locked */ |
| __HAL_LOCK(&pFlash); |
| |
| /* Check the parameters */ |
| assert_param(IS_OPTIONBYTE(pOBInit->OptionType)); |
| |
| /*Write protection configuration*/ |
| if((pOBInit->OptionType & OPTIONBYTE_WRP) == OPTIONBYTE_WRP) |
| { |
| assert_param(IS_WRPSTATE(pOBInit->WRPState)); |
| #if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx) |
| status = FLASH_OB_ProtectedSectorsConfig(pOBInit->WRPSector, pOBInit->WRPSector2, pOBInit->WRPState); |
| #else |
| status = FLASH_OB_ProtectedSectorsConfig(pOBInit->WRPSector, pOBInit->WRPState); |
| #endif |
| if (status != HAL_OK) |
| { |
| /* Process Unlocked */ |
| __HAL_UNLOCK(&pFlash); |
| return status; |
| } |
| } |
| |
| /* Read protection configuration*/ |
| if((pOBInit->OptionType & OPTIONBYTE_RDP) == OPTIONBYTE_RDP) |
| { |
| status = FLASH_OB_RDPConfig(pOBInit->RDPLevel); |
| if (status != HAL_OK) |
| { |
| /* Process Unlocked */ |
| __HAL_UNLOCK(&pFlash); |
| return status; |
| } |
| } |
| |
| /* USER configuration*/ |
| if((pOBInit->OptionType & OPTIONBYTE_USER) == OPTIONBYTE_USER) |
| { |
| status = FLASH_OB_UserConfig(pOBInit->USERConfig & OB_IWDG_SW, |
| pOBInit->USERConfig & OB_STOP_NORST, |
| pOBInit->USERConfig & OB_STDBY_NORST); |
| if (status != HAL_OK) |
| { |
| /* Process Unlocked */ |
| __HAL_UNLOCK(&pFlash); |
| return status; |
| } |
| } |
| |
| /* BOR Level configuration*/ |
| if((pOBInit->OptionType & OPTIONBYTE_BOR) == OPTIONBYTE_BOR) |
| { |
| status = FLASH_OB_BORConfig(pOBInit->BORLevel); |
| if (status != HAL_OK) |
| { |
| /* Process Unlocked */ |
| __HAL_UNLOCK(&pFlash); |
| return status; |
| } |
| } |
| |
| /* Program BOOT Bit1 config option byte */ |
| if ((pOBInit->OptionType & OPTIONBYTE_BOOT_BIT1) == OPTIONBYTE_BOOT_BIT1) |
| { |
| status = FLASH_OB_BOOTBit1Config(pOBInit->BOOTBit1Config); |
| } |
| /* Process Unlocked */ |
| __HAL_UNLOCK(&pFlash); |
| |
| return status; |
| } |
| |
| /** |
| * @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 | OPTIONBYTE_BOR; |
| |
| /* Get WRP sector */ |
| pOBInit->WRPSector = FLASH_OB_GetWRP(); |
| |
| #if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx) |
| pOBInit->WRPSector2 = FLASH_OB_GetWRP2(); |
| #endif |
| |
| /*Get RDP Level*/ |
| pOBInit->RDPLevel = FLASH_OB_GetRDP(); |
| |
| /*Get USER*/ |
| pOBInit->USERConfig = FLASH_OB_GetUser(); |
| |
| /*Get BOR Level*/ |
| pOBInit->BORLevel = FLASH_OB_GetBOR(); |
| |
| /* Get BOOT bit 1 config OB */ |
| pOBInit->BOOTBit1Config = FLASH_OB_GetBOOTBit1(); |
| } |
| |
| #if defined(FLASH_OPTR_WPRMOD) || defined(FLASH_OPTR_BFB2) |
| |
| /** |
| * @brief Program option bytes |
| * @param pAdvOBInit pointer to an FLASH_AdvOBProgramInitTypeDef structure that |
| * contains the configuration information for the programming. |
| * |
| * @retval HAL_StatusTypeDef HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASHEx_AdvOBProgram (FLASH_AdvOBProgramInitTypeDef *pAdvOBInit) |
| { |
| HAL_StatusTypeDef status = HAL_ERROR; |
| |
| /* Check the parameters */ |
| assert_param(IS_OBEX(pAdvOBInit->OptionType)); |
| |
| #if defined(FLASH_OPTR_WPRMOD) |
| |
| /* Program PCROP option byte*/ |
| if ((pAdvOBInit->OptionType & OPTIONBYTE_PCROP) == OPTIONBYTE_PCROP) |
| { |
| /* Check the parameters */ |
| assert_param(IS_PCROPSTATE(pAdvOBInit->PCROPState)); |
| #if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx) |
| status = FLASH_OB_ProtectedSectorsConfig(pAdvOBInit->PCROPSector, pAdvOBInit->PCROPSector2, pAdvOBInit->PCROPState); |
| #else |
| status = FLASH_OB_ProtectedSectorsConfig(pAdvOBInit->PCROPSector, pAdvOBInit->PCROPState); |
| #endif |
| } |
| |
| #endif /* FLASH_OPTR_WPRMOD */ |
| |
| #if defined(FLASH_OPTR_BFB2) |
| |
| /* Program BOOT config option byte */ |
| if ((pAdvOBInit->OptionType & OPTIONBYTE_BOOTCONFIG) == OPTIONBYTE_BOOTCONFIG) |
| { |
| status = FLASH_OB_BootConfig(pAdvOBInit->BootConfig); |
| } |
| |
| #endif /* FLASH_OPTR_BFB2 */ |
| |
| return status; |
| } |
| |
| /** |
| * @brief Get the OBEX byte configuration |
| * @param pAdvOBInit pointer to an FLASH_AdvOBProgramInitTypeDef structure that |
| * contains the configuration information for the programming. |
| * |
| * @retval None |
| */ |
| void HAL_FLASHEx_AdvOBGetConfig(FLASH_AdvOBProgramInitTypeDef *pAdvOBInit) |
| { |
| pAdvOBInit->OptionType = 0; |
| |
| #if defined(FLASH_OPTR_WPRMOD) |
| |
| pAdvOBInit->OptionType |= OPTIONBYTE_PCROP; |
| |
| |
| /* Get PCROP state */ |
| pAdvOBInit->PCROPState = (FLASH->OPTR & FLASH_OPTR_WPRMOD) >> FLASH_OPTR_WPRMOD_Pos; |
| /* Get PCROP protected sector */ |
| pAdvOBInit->PCROPSector = FLASH->WRPR; |
| |
| #if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx) |
| /* Get PCROP protected sector */ |
| pAdvOBInit->PCROPSector2 = FLASH->WRPR2; |
| #endif |
| #endif /* FLASH_OPTR_WPRMOD */ |
| |
| #if defined(FLASH_OPTR_BFB2) |
| |
| pAdvOBInit->OptionType |= OPTIONBYTE_BOOTCONFIG; |
| |
| /* Get Boot config OB */ |
| pAdvOBInit->BootConfig = (FLASH->OPTR & FLASH_OPTR_BFB2) >> 16U; |
| |
| #endif /* FLASH_OPTR_BFB2 */ |
| } |
| |
| #endif /* FLASH_OPTR_WPRMOD || FLASH_OPTR_BFB2 */ |
| |
| #if defined(FLASH_OPTR_WPRMOD) |
| |
| /** |
| * @brief Select the Protection Mode (WPRMOD). |
| * @note Once WPRMOD bit is active, unprotection of a protected sector is not possible |
| * @note Read a protected sector will set RDERR Flag and write a protected sector will set WRPERR Flag |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_FLASHEx_OB_SelectPCROP(void) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| uint16_t tmp1 = 0; |
| uint32_t tmp2 = 0; |
| uint8_t optiontmp = 0; |
| uint16_t optiontmp2 = 0; |
| |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| /* Mask RDP Byte */ |
| optiontmp = (uint8_t)(*(__IO uint8_t *)(OB_BASE)); |
| |
| /* Update Option Byte */ |
| optiontmp2 = (uint16_t)(OB_PCROP_SELECTED | optiontmp); |
| |
| /* calculate the option byte to write */ |
| tmp1 = (uint16_t)(~(optiontmp2 )); |
| tmp2 = (uint32_t)(((uint32_t)((uint32_t)(tmp1) << 16U)) | ((uint32_t)optiontmp2)); |
| |
| if(status == HAL_OK) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| /* program PCRop */ |
| OB->RDP = tmp2; |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| } |
| |
| /* Return the Read protection operation Status */ |
| return status; |
| } |
| |
| /** |
| * @brief Deselect the Protection Mode (WPRMOD). |
| * @note Once WPRMOD bit is active, unprotection of a protected sector is not possible |
| * @note Read a protected sector will set RDERR Flag and write a protected sector will set WRPERR Flag |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_FLASHEx_OB_DeSelectPCROP(void) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| uint16_t tmp1 = 0; |
| uint32_t tmp2 = 0; |
| uint8_t optiontmp = 0; |
| uint16_t optiontmp2 = 0; |
| |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| /* Mask RDP Byte */ |
| optiontmp = (uint8_t)(*(__IO uint8_t *)(OB_BASE)); |
| |
| /* Update Option Byte */ |
| optiontmp2 = (uint16_t)(OB_PCROP_DESELECTED | optiontmp); |
| |
| /* calculate the option byte to write */ |
| tmp1 = (uint16_t)(~(optiontmp2 )); |
| tmp2 = (uint32_t)(((uint32_t)((uint32_t)(tmp1) << 16U)) | ((uint32_t)optiontmp2)); |
| |
| if(status == HAL_OK) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| /* program PCRop */ |
| OB->RDP = tmp2; |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| } |
| |
| /* Return the Read protection operation Status */ |
| return status; |
| } |
| |
| #endif /* FLASH_OPTR_WPRMOD */ |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup FLASHEx_Exported_Functions_Group3 DATA EEPROM Programming functions |
| * @brief DATA EEPROM Programming functions |
| * |
| @verbatim |
| =============================================================================== |
| ##### DATA EEPROM Programming functions ##### |
| =============================================================================== |
| |
| [..] Any operation of erase or program should follow these steps: |
| (#) Call the HAL_FLASHEx_DATAEEPROM_Unlock() function to enable the data EEPROM access |
| and Flash program erase control register access. |
| (#) Call the desired function to erase or program data. |
| (#) Call the HAL_FLASHEx_DATAEEPROM_Lock() to disable the data EEPROM access |
| and Flash program erase control register access(recommended |
| to protect the DATA_EEPROM against possible unwanted operation). |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Unlocks the data memory and FLASH_PECR register access. |
| * @retval HAL_StatusTypeDef HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASHEx_DATAEEPROM_Unlock(void) |
| { |
| uint32_t primask_bit; |
| |
| if((FLASH->PECR & FLASH_PECR_PELOCK) != RESET) |
| { |
| /* Disable interrupts to avoid any interruption during unlock sequence */ |
| primask_bit = __get_PRIMASK(); |
| __disable_irq(); |
| |
| /* Unlocking the Data memory and FLASH_PECR register access*/ |
| FLASH->PEKEYR = FLASH_PEKEY1; |
| FLASH->PEKEYR = FLASH_PEKEY2; |
| |
| /* Re-enable the interrupts: restore previous priority mask */ |
| __set_PRIMASK(primask_bit); |
| |
| if((FLASH->PECR & FLASH_PECR_PELOCK) != RESET) |
| { |
| return HAL_ERROR; |
| } |
| } |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Locks the Data memory and FLASH_PECR register access. |
| * @retval HAL_StatusTypeDef HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASHEx_DATAEEPROM_Lock(void) |
| { |
| /* Set the PELOCK Bit to lock the data memory and FLASH_PECR register access */ |
| SET_BIT(FLASH->PECR, FLASH_PECR_PELOCK); |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Erase a word in data memory. |
| * @param Address specifies the address to be erased. |
| * @note To correctly run this function, the @ref HAL_FLASHEx_DATAEEPROM_Unlock() function |
| * must be called before. |
| * Call the @ref HAL_FLASHEx_DATAEEPROM_Lock() to the data EEPROM access |
| * and Flash program erase control register access(recommended to protect |
| * the DATA_EEPROM against possible unwanted operation). |
| * @retval HAL_StatusTypeDef HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASHEx_DATAEEPROM_Erase(uint32_t Address) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| /* Check the parameters */ |
| assert_param(IS_FLASH_DATA_ADDRESS(Address)); |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| if(status == HAL_OK) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| /* Write 00000000h to valid address in the data memory */ |
| *(__IO uint32_t *) Address = 0x00000000U; |
| |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| } |
| |
| /* Return the erase status */ |
| return status; |
| } |
| |
| /** |
| * @brief Program word at a specified address |
| * @note To correctly run this function, the @ref HAL_FLASHEx_DATAEEPROM_Unlock() function |
| * must be called before. |
| * Call the @ref HAL_FLASHEx_DATAEEPROM_Unlock() to he data EEPROM access |
| * and Flash program erase control register access(recommended to protect |
| * the DATA_EEPROM against possible unwanted operation). |
| * @note The function @ref HAL_FLASHEx_DATAEEPROM_EnableFixedTimeProgram() can be called before |
| * this function to configure the Fixed Time Programming. |
| * @param TypeProgram Indicate the way to program at a specified address. |
| * This parameter can be a value of @ref FLASHEx_Type_Program_Data |
| * @param Address specifie the address to be programmed. |
| * @param Data specifie the data to be programmed |
| * |
| * @retval HAL_StatusTypeDef HAL Status |
| */ |
| |
| HAL_StatusTypeDef HAL_FLASHEx_DATAEEPROM_Program(uint32_t TypeProgram, uint32_t Address, uint32_t Data) |
| { |
| HAL_StatusTypeDef status = HAL_ERROR; |
| |
| /* Process Locked */ |
| __HAL_LOCK(&pFlash); |
| |
| /* Check the parameters */ |
| assert_param(IS_TYPEPROGRAMDATA(TypeProgram)); |
| assert_param(IS_FLASH_DATA_ADDRESS(Address)); |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| if(status == HAL_OK) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| if(TypeProgram == FLASH_TYPEPROGRAMDATA_WORD) |
| { |
| /* Program word (32-bit) at a specified address.*/ |
| *(__IO uint32_t *)Address = Data; |
| } |
| else if(TypeProgram == FLASH_TYPEPROGRAMDATA_HALFWORD) |
| { |
| /* Program halfword (16-bit) at a specified address.*/ |
| *(__IO uint16_t *)Address = (uint16_t) Data; |
| } |
| else if(TypeProgram == FLASH_TYPEPROGRAMDATA_BYTE) |
| { |
| /* Program byte (8-bit) at a specified address.*/ |
| *(__IO uint8_t *)Address = (uint8_t) Data; |
| } |
| else |
| { |
| status = HAL_ERROR; |
| } |
| |
| if (status == HAL_OK) |
| { |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| } |
| } |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(&pFlash); |
| |
| return status; |
| } |
| |
| /** |
| * @brief Enable DATA EEPROM fixed Time programming (2*Tprog). |
| * @retval None |
| */ |
| void HAL_FLASHEx_DATAEEPROM_EnableFixedTimeProgram(void) |
| { |
| SET_BIT(FLASH->PECR, FLASH_PECR_FIX); |
| } |
| |
| /** |
| * @brief Disables DATA EEPROM fixed Time programming (2*Tprog). |
| * @retval None |
| */ |
| void HAL_FLASHEx_DATAEEPROM_DisableFixedTimeProgram(void) |
| { |
| CLEAR_BIT(FLASH->PECR, FLASH_PECR_FIX); |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup FLASHEx_Private_Functions |
| * @{ |
| */ |
| |
| /* |
| ============================================================================== |
| OPTIONS BYTES |
| ============================================================================== |
| */ |
| /** |
| * @brief Enables or disables the read out protection. |
| * @note To correctly run this function, the @ref HAL_FLASH_OB_Unlock() function |
| * must be called before. |
| * @param OB_RDP specifies the read protection level. |
| * This parameter can be: |
| * @arg @ref OB_RDP_LEVEL_0 No protection |
| * @arg @ref OB_RDP_LEVEL_1 Read protection of the memory |
| * @arg @ref OB_RDP_LEVEL_2 Chip protection |
| * |
| * !!!Warning!!! When enabling OB_RDP_LEVEL_2 it's no more possible to go back to level 1 or 0 |
| * |
| * @retval HAL status |
| */ |
| static HAL_StatusTypeDef FLASH_OB_RDPConfig(uint8_t OB_RDP) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| uint32_t tmp1, tmp2; |
| |
| /* Check the parameters */ |
| assert_param(IS_OB_RDP(OB_RDP)); |
| |
| tmp1 = (uint32_t)(OB->RDP & ((~FLASH_OPTR_RDPROT) & 0x0000FFFF)); |
| |
| /* Calculate the option byte to write */ |
| tmp1 |= (uint32_t)(OB_RDP); |
| tmp2 = (uint32_t)(((uint32_t)((uint32_t)(~tmp1) << 16U)) | tmp1); |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| if(status == HAL_OK) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| /* program read protection level */ |
| OB->RDP = tmp2; |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| } |
| |
| /* Return the Read protection operation Status */ |
| return status; |
| } |
| |
| /** |
| * @brief Programs the FLASH brownout reset threshold level Option Byte. |
| * @param OB_BOR Selects the brownout reset threshold level. |
| * This parameter can be one of the following values: |
| * @arg @ref OB_BOR_OFF BOR is disabled at power down, the reset is asserted when the VDD |
| * power supply reaches the PDR(Power Down Reset) threshold (1.5V) |
| * @arg @ref OB_BOR_LEVEL1 BOR Reset threshold levels for 1.7V - 1.8V VDD power supply |
| * @arg @ref OB_BOR_LEVEL2 BOR Reset threshold levels for 1.9V - 2.0V VDD power supply |
| * @arg @ref OB_BOR_LEVEL3 BOR Reset threshold levels for 2.3V - 2.4V VDD power supply |
| * @arg @ref OB_BOR_LEVEL4 BOR Reset threshold levels for 2.55V - 2.65V VDD power supply |
| * @arg @ref OB_BOR_LEVEL5 BOR Reset threshold levels for 2.8V - 2.9V VDD power supply |
| * @retval HAL status |
| */ |
| static HAL_StatusTypeDef FLASH_OB_BORConfig(uint8_t OB_BOR) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| uint32_t tmp = 0, tmp1 = 0; |
| |
| /* Check the parameters */ |
| assert_param(IS_OB_BOR_LEVEL(OB_BOR)); |
| |
| /* Get the User Option byte register */ |
| tmp1 = OB->USER & ((~FLASH_OPTR_BOR_LEV) >> 16U); |
| |
| /* Calculate the option byte to write - [0xFF | nUSER | 0x00 | USER]*/ |
| tmp = (uint32_t)~((OB_BOR | tmp1)) << 16U; |
| tmp |= (OB_BOR | tmp1); |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| if(status == HAL_OK) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| /* Write the BOR Option Byte */ |
| OB->USER = tmp; |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| } |
| |
| /* Return the Option Byte BOR programming Status */ |
| return status; |
| } |
| |
| /** |
| * @brief Sets or resets the BOOT bit1 option bit. |
| * @param OB_BootBit1 Set or Reset the BOOT bit1 option bit. |
| * This parameter can be one of the following values: |
| * @arg @ref OB_BOOT_BIT1_RESET BOOT1 option bit reset |
| * @arg @ref OB_BOOT_BIT1_SET BOOT1 option bit set |
| * @retval HAL status |
| */ |
| static HAL_StatusTypeDef FLASH_OB_BOOTBit1Config(uint8_t OB_BootBit1) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| uint32_t tmp = 0, tmp1 = 0, OB_Bits = ((uint32_t) OB_BootBit1) << 15; |
| |
| /* Check the parameters */ |
| assert_param(IS_OB_BOOT1(OB_BootBit1)); |
| |
| /* Get the User Option byte register */ |
| tmp1 = OB->USER & ((~FLASH_OPTR_BOOT1) >> 16U); |
| |
| /* Calculate the user option byte to write */ |
| tmp = (~(OB_Bits | tmp1)) << 16U; |
| tmp |= OB_Bits | tmp1; |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| if(status == HAL_OK) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| /* Program OB */ |
| OB->USER = tmp; |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| } |
| |
| return status; |
| } |
| |
| /** |
| * @brief Returns the FLASH User Option Bytes values. |
| * @retval The FLASH User Option Bytes. |
| */ |
| static uint8_t FLASH_OB_GetUser(void) |
| { |
| /* Return the User Option Byte */ |
| return (uint8_t)((FLASH->OPTR & FLASH_OPTR_USER) >> 16U); |
| } |
| |
| /** |
| * @brief Returns the FLASH Read Protection level. |
| * @retval FLASH RDP 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 |
| * @arg @ref OB_RDP_LEVEL_2 Full chip protection |
| */ |
| static uint8_t FLASH_OB_GetRDP(void) |
| { |
| uint8_t rdp_level = READ_BIT(FLASH->OPTR, FLASH_OPTR_RDPROT); |
| |
| if ((rdp_level != OB_RDP_LEVEL_0) && (rdp_level != OB_RDP_LEVEL_2)) |
| { |
| return (OB_RDP_LEVEL_1); |
| } |
| else |
| { |
| return rdp_level; |
| } |
| } |
| |
| /** |
| * @brief Returns the FLASH BOR level. |
| * @retval The BOR level Option Bytes. |
| */ |
| static uint8_t FLASH_OB_GetBOR(void) |
| { |
| /* Return the BOR level */ |
| return (uint8_t)((FLASH->OPTR & (uint32_t)FLASH_OPTR_BOR_LEV) >> 16U); |
| } |
| |
| /** |
| * @brief Returns the FLASH BOOT bit1 value. |
| * @retval The BOOT bit 1 value Option Bytes. |
| */ |
| static uint8_t FLASH_OB_GetBOOTBit1(void) |
| { |
| /* Return the BOR level */ |
| return (FLASH->OPTR & FLASH_OPTR_BOOT1) >> FLASH_OPTR_BOOT1_Pos; |
| |
| } |
| |
| /** |
| * @brief Returns the FLASH Write Protection Option Bytes value. |
| * @retval The FLASH Write Protection Option Bytes value. |
| */ |
| static uint32_t FLASH_OB_GetWRP(void) |
| { |
| /* Return the FLASH write protection Register value */ |
| return (uint32_t)(FLASH->WRPR); |
| } |
| |
| #if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx) |
| /** |
| * @brief Returns the FLASH Write Protection Option Bytes value. |
| * @retval The FLASH Write Protection Option Bytes value. |
| */ |
| static uint32_t FLASH_OB_GetWRP2(void) |
| { |
| /* Return the FLASH write protection Register value */ |
| return (uint32_t)(FLASH->WRPR2); |
| } |
| #endif /* STM32L071xx || STM32L072xx || STM32L073xx || STM32L081xx || STM32L082xx || STM32L083xx */ |
| |
| #if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx) |
| /** |
| * @brief Write Option Byte of the desired pages of the Flash. |
| * @param Sector specifies the sectors to be write protected. |
| * @param Sector2 specifies the sectors to be write protected (only stm32l07xxx and stm32l08xxx devices) |
| * @param NewState new state of the specified FLASH Pages Write protection. |
| * This parameter can be: |
| * @arg @ref OB_WRPSTATE_ENABLE |
| * @arg @ref OB_WRPSTATE_DISABLE |
| * @retval HAL_StatusTypeDef |
| */ |
| static HAL_StatusTypeDef FLASH_OB_ProtectedSectorsConfig(uint32_t Sector, uint32_t Sector2, uint32_t NewState) |
| #else |
| /** |
| * @brief Write Option Byte of the desired pages of the Flash. |
| * @param Sector specifies the sectors to be write protected. |
| * @param NewState new state of the specified FLASH Pages Write protection. |
| * This parameter can be: |
| * @arg @ref OB_WRPSTATE_ENABLE |
| * @arg @ref OB_WRPSTATE_DISABLE |
| * @retval HAL_StatusTypeDef |
| */ |
| static HAL_StatusTypeDef FLASH_OB_ProtectedSectorsConfig(uint32_t Sector, uint32_t NewState) |
| #endif |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| uint32_t WRP_Data = 0; |
| uint32_t OB_WRP = Sector; |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| if(status == HAL_OK) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| /* Update WRP only if at least 1 selected sector */ |
| if (OB_WRP != 0x00000000U) |
| { |
| if ((OB_WRP & WRP_MASK_LOW) != 0x00000000U) |
| { |
| if (NewState != OB_WRPSTATE_DISABLE) |
| { |
| WRP_Data = (uint16_t)(((OB_WRP & WRP_MASK_LOW) | OB->WRP01)); |
| OB->WRP01 = (uint32_t)(~(WRP_Data) << 16U) | (WRP_Data); |
| } |
| else |
| { |
| WRP_Data = (uint16_t)(~OB_WRP & (WRP_MASK_LOW & OB->WRP01)); |
| OB->WRP01 = (uint32_t)((~WRP_Data) << 16U) | (WRP_Data); |
| } |
| } |
| } |
| #if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx) |
| /* Update WRP only if at least 1 selected sector */ |
| if (OB_WRP != 0x00000000U) |
| { |
| if ((OB_WRP & WRP_MASK_HIGH) != 0x00000000U) |
| { |
| if (NewState != OB_WRPSTATE_DISABLE) |
| { |
| WRP_Data = (uint16_t)((((OB_WRP & WRP_MASK_HIGH) >> 16U | OB->WRP23))); |
| OB->WRP23 = (uint32_t)(~(WRP_Data) << 16U) | (WRP_Data); |
| } |
| else |
| { |
| WRP_Data = (uint16_t)((((~OB_WRP & WRP_MASK_HIGH) >> 16U & OB->WRP23))); |
| OB->WRP23 = (uint32_t)((~WRP_Data) << 16U) | (WRP_Data); |
| } |
| } |
| } |
| |
| OB_WRP = Sector2; |
| /* Update WRP only if at least 1 selected sector */ |
| if (OB_WRP != 0x00000000U) |
| { |
| if ((OB_WRP & WRP_MASK_LOW) != 0x00000000U) |
| { |
| if (NewState != OB_WRPSTATE_DISABLE) |
| { |
| WRP_Data = (uint16_t)(((OB_WRP & WRP_MASK_LOW) | OB->WRP45)); |
| OB->WRP45 =(uint32_t)(~(WRP_Data) << 16U) | (WRP_Data); |
| } |
| else |
| { |
| WRP_Data = (uint16_t)(~OB_WRP & (WRP_MASK_LOW & OB->WRP45)); |
| OB->WRP45 = (uint32_t)((~WRP_Data) << 16U) | (WRP_Data); |
| } |
| } |
| } |
| #endif /* STM32L071xx || STM32L072xx || STM32L073xx || STM32L081xx || STM32L082xx || STM32L083xx */ |
| } |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| /* Return the write protection operation Status */ |
| return status; |
| } |
| |
| /** |
| * @brief Programs the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY. |
| * @param OB_IWDG Selects the WDG mode. |
| * This parameter can be one of the following values: |
| * @arg @ref OB_IWDG_SW Software WDG selected |
| * @arg @ref OB_IWDG_HW Hardware WDG selected |
| * @param OB_STOP Reset event when entering STOP mode. |
| * This parameter can be one of the following values: |
| * @arg @ref OB_STOP_NORST No reset generated when entering in STOP |
| * @arg @ref OB_STOP_RST Reset generated when entering in STOP |
| * @param OB_STDBY Reset event when entering Standby mode. |
| * This parameter can be one of the following values: |
| * @arg @ref OB_STDBY_NORST No reset generated when entering in STANDBY |
| * @arg @ref OB_STDBY_RST Reset generated when entering in STANDBY |
| * @retval HAL status |
| */ |
| static HAL_StatusTypeDef FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| uint32_t tmp = 0, tmp1 = 0; |
| |
| /* Check the parameters */ |
| assert_param(IS_OB_IWDG_SOURCE(OB_IWDG)); |
| assert_param(IS_OB_STOP_SOURCE(OB_STOP)); |
| assert_param(IS_OB_STDBY_SOURCE(OB_STDBY)); |
| |
| /* Get the User Option byte register */ |
| tmp1 = OB->USER & ((~FLASH_OPTR_USER) >> 16U); |
| |
| /* Calculate the user option byte to write */ |
| tmp = (uint32_t)(((uint32_t)~((uint32_t)((uint32_t)(OB_IWDG) | (uint32_t)(OB_STOP) | (uint32_t)(OB_STDBY) | tmp1))) << 16U); |
| tmp |= ((uint32_t)(OB_IWDG) | ((uint32_t)OB_STOP) | (uint32_t)(OB_STDBY) | tmp1); |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| if(status == HAL_OK) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| /* Write the User Option Byte */ |
| OB->USER = tmp; |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| } |
| |
| /* Return the Option Byte program Status */ |
| return status; |
| } |
| |
| #if defined(FLASH_OPTR_BFB2) |
| /** |
| * @brief Configures to boot from Bank1 or Bank2. |
| * @param OB_BOOT select the FLASH Bank to boot from. |
| * This parameter can be one of the following values: |
| * This parameter can be one of the following values: |
| * @arg @ref OB_BOOT_BANK1 BFB2 option bit reset |
| * @arg @ref OB_BOOT_BANK2 BFB2 option bit set |
| * @retval HAL status |
| */ |
| static HAL_StatusTypeDef FLASH_OB_BootConfig(uint8_t OB_BOOT) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| uint32_t tmp = 0U, tmp1 = 0U; |
| |
| /* Check the parameters */ |
| assert_param(IS_OB_BOOT_BANK(OB_BOOT)); |
| |
| /* Get the User Option byte register and BOR Level*/ |
| tmp1 = OB->USER & ((~FLASH_OPTR_BFB2) >> 16U); |
| |
| /* Calculate the option byte to write */ |
| tmp = (uint32_t)~(OB_BOOT | tmp1) << 16U; |
| tmp |= (OB_BOOT | tmp1); |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| |
| if(status == HAL_OK) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| /* Write the BOOT Option Byte */ |
| OB->USER = tmp; |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| } |
| |
| /* Return the Option Byte program Status */ |
| return status; |
| } |
| |
| #endif /* FLASH_OPTR_BFB2 */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup FLASH |
| * @{ |
| */ |
| |
| |
| /** @addtogroup FLASH_Private_Functions |
| * @{ |
| */ |
| |
| /** |
| * @brief Erases a specified page in program memory. |
| * @param PageAddress The page address in program memory to be erased. |
| * @note A Page is erased in the Program memory only if the address to load |
| * is the start address of a page (multiple of @ref FLASH_PAGE_SIZE bytes). |
| * @retval None |
| */ |
| void FLASH_PageErase(uint32_t PageAddress) |
| { |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| /* Set the ERASE bit */ |
| SET_BIT(FLASH->PECR, FLASH_PECR_ERASE); |
| |
| /* Set PROG bit */ |
| SET_BIT(FLASH->PECR, FLASH_PECR_PROG); |
| |
| /* Write 00000000h to the first word of the program page to erase */ |
| *(__IO uint32_t *)(uint32_t)(PageAddress & ~(FLASH_PAGE_SIZE - 1)) = 0x00000000; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* HAL_FLASH_MODULE_ENABLED */ |
| /** |
| * @} |
| */ |
| |