| /** |
| ****************************************************************************** |
| * @file stm32l0xx_hal_flash.c |
| * @author MCD Application Team |
| * @brief FLASH HAL module driver. |
| * This file provides firmware functions to manage the following |
| * functionalities of the internal FLASH memory: |
| * + Program operations functions |
| * + Memory Control functions |
| * + Peripheral State functions |
| * |
| ****************************************************************************** |
| * @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. |
| * |
| ****************************************************************************** |
| @verbatim |
| ============================================================================== |
| ##### FLASH peripheral features ##### |
| ============================================================================== |
| [..] The Flash memory interface manages CPU AHB I-Code and D-Code accesses |
| to the Flash memory. It implements the erase and program Flash memory operations |
| and the read and write protection mechanisms. |
| |
| [..] The Flash memory interface accelerates code execution with a system of instruction |
| prefetch. |
| |
| [..] The FLASH main features are: |
| (+) Flash memory read operations |
| (+) Flash memory program/erase operations |
| (+) Read / write protections |
| (+) Prefetch on I-Code |
| (+) Option Bytes programming |
| |
| |
| ##### How to use this driver ##### |
| ============================================================================== |
| [..] |
| This driver provides functions and macros to configure and program the FLASH |
| memory of all STM32L0xx devices. |
| |
| (#) FLASH Memory I/O Programming functions: this group includes all needed |
| functions to erase and program the main memory: |
| (++) Lock and Unlock the FLASH interface |
| (++) Erase function: Erase page |
| (++) Program functions: Fast Word and Half Page(should be |
| executed from internal SRAM). |
| |
| (#) DATA EEPROM Programming functions: this group includes all |
| needed functions to erase and program the DATA EEPROM memory: |
| (++) Lock and Unlock the DATA EEPROM interface. |
| (++) Erase function: Erase Byte, erase HalfWord, erase Word, erase |
| Double Word (should be executed from internal SRAM). |
| (++) Program functions: Fast Program Byte, Fast Program Half-Word, |
| FastProgramWord, Program Byte, Program Half-Word, |
| Program Word and Program Double-Word (should be executed |
| from internal SRAM). |
| |
| (#) FLASH Option Bytes Programming functions: this group includes all needed |
| functions to manage the Option Bytes: |
| (++) Lock and Unlock the Option Bytes |
| (++) Set/Reset the write protection |
| (++) Set the Read protection Level |
| (++) Program the user Option Bytes |
| (++) Launch the Option Bytes loader |
| (++) Set/Get the Read protection Level. |
| (++) Set/Get the BOR level. |
| (++) Get the Write protection. |
| (++) Get the user option bytes. |
| |
| (#) Interrupts and flags management functions : this group |
| includes all needed functions to: |
| (++) Handle FLASH interrupts |
| (++) Wait for last FLASH operation according to its status |
| (++) Get error flag status |
| |
| (#) FLASH Interface configuration functions: this group includes |
| the management of following features: |
| (++) Enable/Disable the RUN PowerDown mode. |
| (++) Enable/Disable the SLEEP PowerDown mode. |
| |
| (#) FLASH Peripheral State methods: this group includes |
| the management of following features: |
| (++) Wait for the FLASH operation |
| (++) Get the specific FLASH error flag |
| |
| [..] In addition to these function, this driver includes a set of macros allowing |
| to handle the following operations: |
| |
| (+) Set/Get the latency |
| (+) Enable/Disable the prefetch buffer |
| (+) Enable/Disable the preread buffer |
| (+) Enable/Disable the Flash power-down |
| (+) Enable/Disable the FLASH interrupts |
| (+) Monitor the FLASH flags status |
| |
| ##### Programming operation functions ##### |
| =============================================================================== |
| [..] |
| This subsection provides a set of functions allowing to manage the FLASH |
| program operations. |
| |
| [..] The FLASH Memory Programming functions, includes the following functions: |
| (+) HAL_FLASH_Unlock(void); |
| (+) HAL_FLASH_Lock(void); |
| (+) HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint32_t Data) |
| (+) HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint32_t Data) |
| |
| [..] Any operation of erase or program 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 or program data. |
| (#) Call the HAL_FLASH_Lock() to disable the flash program memory access |
| (recommended to protect the FLASH memory against possible unwanted operation). |
| |
| ##### Option Bytes Programming functions ##### |
| ============================================================================== |
| |
| [..] The FLASH_Option Bytes Programming_functions, includes the following functions: |
| (+) HAL_FLASH_OB_Unlock(void); |
| (+) HAL_FLASH_OB_Lock(void); |
| (+) HAL_FLASH_OB_Launch(void); |
| (+) HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit); |
| (+) HAL_FLASHEx_OBGetConfig(FLASH_OBProgramInitTypeDef *pOBInit); |
| |
| [..] 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 the following functions to program the desired option bytes. |
| (++) HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit); |
| (#) 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. As a result, these 2 options are exclusive each other. |
| (#) To activate PCROP mode for Flash sectors(s), you need to follow the sequence below: |
| (++) Use this function HAL_FLASHEx_AdvOBProgram with PCROPState = OB_PCROP_STATE_ENABLE. |
| |
| @endverbatim |
| ****************************************************************************** |
| */ |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32l0xx_hal.h" |
| |
| /** @addtogroup STM32L0xx_HAL_Driver |
| * @{ |
| */ |
| |
| #ifdef HAL_FLASH_MODULE_ENABLED |
| |
| /** @defgroup FLASH FLASH |
| * @brief FLASH HAL module driver |
| * @{ |
| */ |
| |
| /* Private typedef -----------------------------------------------------------*/ |
| /* Private define ------------------------------------------------------------*/ |
| /** @defgroup FLASH_Private_Constants FLASH Private Constants |
| * @{ |
| */ |
| /** |
| * @} |
| */ |
| |
| /* Private macro ---------------------------- ---------------------------------*/ |
| /** @defgroup FLASH_Private_Macros FLASH Private Macros |
| * @{ |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Private variables ---------------------------------------------------------*/ |
| /** @defgroup FLASH_Private_Variables FLASH Private Variables |
| * @{ |
| */ |
| /* Variables used for Erase pages under interruption*/ |
| FLASH_ProcessTypeDef pFlash; |
| /** |
| * @} |
| */ |
| |
| /* Private function prototypes -----------------------------------------------*/ |
| /** @defgroup FLASH_Private_Functions FLASH Private Functions |
| * @{ |
| */ |
| static void FLASH_SetErrorCode(void); |
| extern void FLASH_PageErase(uint32_t PageAddress); |
| /** |
| * @} |
| */ |
| |
| /* Exported functions ---------------------------------------------------------*/ |
| /** @defgroup FLASH_Exported_Functions FLASH Exported Functions |
| * @{ |
| */ |
| |
| /** @defgroup FLASH_Exported_Functions_Group1 Programming operation functions |
| * @brief Programming operation functions |
| * |
| @verbatim |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Program word at a specified address |
| * @note To correctly run this function, the HAL_FLASH_Unlock() function |
| * must be called before. |
| * Call the HAL_FLASH_Lock() to disable the flash memory access |
| * (recommended to protect the FLASH memory against possible unwanted operation). |
| * |
| * @param TypeProgram Indicate the way to program at a specified address. |
| * This parameter can be a value of @ref FLASH_Type_Program |
| * @param Address Specifie the address to be programmed. |
| * @param Data Specifie the data to be programmed |
| * |
| * @retval HAL_StatusTypeDef HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASH_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_FLASH_TYPEPROGRAM(TypeProgram)); |
| assert_param(IS_FLASH_PROGRAM_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; |
| |
| /*Program word (32-bit) at a specified address.*/ |
| *(__IO uint32_t *)Address = Data; |
| |
| /* Wait for last operation to be completed */ |
| status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); |
| } |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(&pFlash); |
| |
| return status; |
| } |
| |
| /** |
| * @brief Program word at a specified address with interrupt enabled. |
| * |
| * @param TypeProgram Indicate the way to program at a specified address. |
| * This parameter can be a value of @ref FLASH_Type_Program |
| * @param Address Specifie the address to be programmed. |
| * @param Data Specifie the data to be programmed |
| * |
| * @retval HAL_StatusTypeDef HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint32_t Data) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| /* Process Locked */ |
| __HAL_LOCK(&pFlash); |
| |
| /* Check the parameters */ |
| assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram)); |
| assert_param(IS_FLASH_PROGRAM_ADDRESS(Address)); |
| |
| /* Enable End of FLASH Operation and Error source interrupts */ |
| __HAL_FLASH_ENABLE_IT(FLASH_IT_EOP | FLASH_IT_ERR); |
| |
| pFlash.Address = Address; |
| pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAM; |
| /* Clean the error context */ |
| pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; |
| |
| if(TypeProgram == FLASH_TYPEPROGRAM_WORD) |
| { |
| /* Program word (32-bit) at a specified address. */ |
| *(__IO uint32_t *)Address = Data; |
| } |
| return status; |
| } |
| |
| /** |
| * @brief This function handles FLASH interrupt request. |
| * @retval None |
| */ |
| void HAL_FLASH_IRQHandler(void) |
| { |
| uint32_t addresstmp = 0; |
| |
| /* Check FLASH operation error flags */ |
| |
| /* WARNING : On the first cut of STM32L031xx and STM32L041xx devices, |
| * (RefID = 0x1000) the FLASH_FLAG_OPTVERR bit was not behaving |
| * as expected. If the user run an application using the first |
| * cut of the STM32L031xx device or the first cut of the STM32L041xx |
| * device, the check on the FLASH_FLAG_OPTVERR bit should be ignored. |
| * |
| * Note :The revId of the device can be retrieved via the HAL_GetREVID() |
| * function. |
| * |
| */ |
| |
| if( __HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_FWWERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_NOTZEROERR) ) |
| { |
| if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGEERASE) |
| { |
| /* Return the faulty sector */ |
| addresstmp = pFlash.Page; |
| pFlash.Page = 0xFFFFFFFFU; |
| } |
| else |
| { |
| /* Return the faulty address */ |
| addresstmp = pFlash.Address; |
| } |
| /* Save the Error code */ |
| FLASH_SetErrorCode(); |
| |
| /* FLASH error interrupt user callback */ |
| HAL_FLASH_OperationErrorCallback(addresstmp); |
| |
| /* Stop the procedure ongoing */ |
| pFlash.ProcedureOnGoing = FLASH_PROC_NONE; |
| } |
| |
| /* Check FLASH End of Operation flag */ |
| if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP)) |
| { |
| /* Clear FLASH End of Operation pending bit */ |
| __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); |
| |
| /* Process can continue only if no error detected */ |
| if(pFlash.ProcedureOnGoing != FLASH_PROC_NONE) |
| { |
| if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGEERASE) |
| { |
| /* Nb of pages to erased can be decreased */ |
| pFlash.NbPagesToErase--; |
| |
| /* Check if there are still pages to erase */ |
| if(pFlash.NbPagesToErase != 0U) |
| { |
| addresstmp = pFlash.Page; |
| /*Indicate user which sector has been erased */ |
| HAL_FLASH_EndOfOperationCallback(addresstmp); |
| |
| /*Increment sector number*/ |
| addresstmp = pFlash.Page + FLASH_PAGE_SIZE; |
| pFlash.Page = addresstmp; |
| |
| /* If the erase operation is completed, disable the ERASE Bit */ |
| CLEAR_BIT(FLASH->PECR, FLASH_PECR_ERASE); |
| |
| FLASH_PageErase(addresstmp); |
| } |
| else |
| { |
| /* No more pages to Erase, user callback can be called. */ |
| /* Reset Sector and stop Erase pages procedure */ |
| pFlash.Page = addresstmp = 0xFFFFFFFFU; |
| pFlash.ProcedureOnGoing = FLASH_PROC_NONE; |
| /* FLASH EOP interrupt user callback */ |
| HAL_FLASH_EndOfOperationCallback(addresstmp); |
| } |
| } |
| else |
| { |
| /* If the program operation is completed, disable the PROG Bit */ |
| CLEAR_BIT(FLASH->PECR, FLASH_PECR_PROG); |
| |
| /* Program ended. Return the selected address */ |
| /* FLASH EOP interrupt user callback */ |
| HAL_FLASH_EndOfOperationCallback(pFlash.Address); |
| |
| /* Reset Address and stop Program procedure */ |
| pFlash.Address = 0xFFFFFFFFU; |
| pFlash.ProcedureOnGoing = FLASH_PROC_NONE; |
| } |
| } |
| } |
| |
| |
| if(pFlash.ProcedureOnGoing == FLASH_PROC_NONE) |
| { |
| /* Operation is completed, disable the PROG and ERASE */ |
| CLEAR_BIT(FLASH->PECR, (FLASH_PECR_ERASE | FLASH_PECR_PROG)); |
| |
| /* Disable End of FLASH Operation and Error source interrupts */ |
| __HAL_FLASH_DISABLE_IT(FLASH_IT_EOP | FLASH_IT_ERR); |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(&pFlash); |
| } |
| } |
| |
| /** |
| * @brief FLASH end of operation interrupt callback |
| * @param ReturnValue The value saved in this parameter depends on the ongoing procedure |
| * - Pages Erase: Address of the page which has been erased |
| * (if 0xFFFFFFFF, it means that all the selected pages have been erased) |
| * - Program: Address which was selected for data program |
| * @retval none |
| */ |
| __weak void HAL_FLASH_EndOfOperationCallback(uint32_t ReturnValue) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(ReturnValue); |
| |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_FLASH_EndOfOperationCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief FLASH operation error interrupt callback |
| * @param ReturnValue The value saved in this parameter depends on the ongoing procedure |
| * - Pages Erase: Address of the page which returned an error |
| * - Program: Address which was selected for data program |
| * @retval none |
| */ |
| __weak void HAL_FLASH_OperationErrorCallback(uint32_t ReturnValue) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(ReturnValue); |
| |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_FLASH_OperationErrorCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup FLASH_Exported_Functions_Group2 Peripheral Control functions |
| * @brief management functions |
| * |
| @verbatim |
| =============================================================================== |
| ##### Peripheral Control functions ##### |
| =============================================================================== |
| [..] |
| This subsection provides a set of functions allowing to control the FLASH |
| memory operations. |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Unlock the FLASH control register access |
| * @retval HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASH_Unlock(void) |
| { |
| uint32_t primask_bit; |
| |
| /* Unlocking FLASH_PECR register access*/ |
| if(HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_PELOCK)) |
| { |
| /* Disable interrupts to avoid any interruption during unlock sequence */ |
| primask_bit = __get_PRIMASK(); |
| __disable_irq(); |
| |
| WRITE_REG(FLASH->PEKEYR, FLASH_PEKEY1); |
| WRITE_REG(FLASH->PEKEYR, FLASH_PEKEY2); |
| |
| /* Re-enable the interrupts: restore previous priority mask */ |
| __set_PRIMASK(primask_bit); |
| |
| if(HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_PELOCK)) |
| { |
| return HAL_ERROR; |
| } |
| } |
| |
| if (HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_PRGLOCK)) |
| { |
| /* Disable interrupts to avoid any interruption during unlock sequence */ |
| primask_bit = __get_PRIMASK(); |
| __disable_irq(); |
| |
| /* Unlocking the program memory access */ |
| WRITE_REG(FLASH->PRGKEYR, FLASH_PRGKEY1); |
| WRITE_REG(FLASH->PRGKEYR, FLASH_PRGKEY2); |
| |
| /* Re-enable the interrupts: restore previous priority mask */ |
| __set_PRIMASK(primask_bit); |
| |
| if (HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_PRGLOCK)) |
| { |
| return HAL_ERROR; |
| } |
| } |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Locks the FLASH control register access |
| * @retval HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASH_Lock(void) |
| { |
| /* Set the PRGLOCK Bit to lock the FLASH Registers access */ |
| SET_BIT(FLASH->PECR, FLASH_PECR_PRGLOCK); |
| |
| /* Set the PELOCK Bit to lock the PECR Register access */ |
| SET_BIT(FLASH->PECR, FLASH_PECR_PELOCK); |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Unlock the FLASH Option Control Registers access. |
| * @retval HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASH_OB_Unlock(void) |
| { |
| uint32_t primask_bit; |
| |
| if(HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_OPTLOCK)) |
| { |
| /* Disable interrupts to avoid any interruption during unlock sequence */ |
| primask_bit = __get_PRIMASK(); |
| __disable_irq(); |
| |
| /* Unlocking FLASH_PECR register access*/ |
| if(HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_PELOCK)) |
| { |
| /* Unlocking FLASH_PECR register access*/ |
| WRITE_REG(FLASH->PEKEYR, FLASH_PEKEY1); |
| WRITE_REG(FLASH->PEKEYR, FLASH_PEKEY2); |
| } |
| |
| /* Unlocking the option bytes block access */ |
| WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY1); |
| WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY2); |
| |
| /* Re-enable the interrupts: restore previous priority mask */ |
| __set_PRIMASK(primask_bit); |
| } |
| else |
| { |
| return HAL_ERROR; |
| } |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Lock the FLASH Option Control Registers access. |
| * @retval HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASH_OB_Lock(void) |
| { |
| /* Set the OPTLOCK Bit to lock the option bytes block access */ |
| SET_BIT(FLASH->PECR, FLASH_PECR_OPTLOCK); |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Launch the option byte loading. |
| * @note This function will reset automatically the MCU. |
| * @retval HAL Status |
| */ |
| HAL_StatusTypeDef HAL_FLASH_OB_Launch(void) |
| { |
| /* Set the OBL_Launch bit to launch the option byte loading */ |
| SET_BIT(FLASH->PECR, FLASH_PECR_OBL_LAUNCH); |
| |
| /* Wait for last operation to be completed */ |
| return(FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE)); |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup FLASH_Exported_Functions_Group3 Peripheral errors functions |
| * @brief Peripheral errors functions |
| * |
| @verbatim |
| =============================================================================== |
| ##### Peripheral Errors functions ##### |
| =============================================================================== |
| [..] |
| This subsection permit to get in run-time errors of the FLASH peripheral. |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Get the specific FLASH error flag. |
| * @retval FLASH_ErrorCode The returned value can be: |
| * @ref FLASH_Error_Codes |
| */ |
| uint32_t HAL_FLASH_GetError(void) |
| { |
| return pFlash.ErrorCode; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup FLASH_Private_Functions |
| * @{ |
| */ |
| |
| /** |
| * @brief Wait for a FLASH operation to complete. |
| * @param Timeout maximum flash operation timeout |
| * @retval HAL Status |
| */ |
| HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout) |
| { |
| /* Wait for the FLASH operation to complete by polling on BUSY flag to be reset. |
| Even if the FLASH operation fails, the BUSY flag will be reset and an error |
| flag will be set */ |
| |
| uint32_t tickstart = HAL_GetTick(); |
| |
| while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY)) |
| { |
| if (Timeout != HAL_MAX_DELAY) |
| { |
| if((Timeout == 0U) || ((HAL_GetTick()-tickstart) > Timeout)) |
| { |
| return HAL_TIMEOUT; |
| } |
| } |
| } |
| |
| /* Check FLASH End of Operation flag */ |
| if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP)) |
| { |
| /* Clear FLASH End of Operation pending bit */ |
| __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); |
| } |
| |
| if( __HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_FWWERR) || |
| __HAL_FLASH_GET_FLAG(FLASH_FLAG_NOTZEROERR) ) |
| { |
| /*Save the error code*/ |
| |
| /* WARNING : On the first cut of STM32L031xx and STM32L041xx devices, |
| * (RefID = 0x1000) the FLASH_FLAG_OPTVERR bit was not behaving |
| * as expected. If the user run an application using the first |
| * cut of the STM32L031xx device or the first cut of the STM32L041xx |
| * device, this error should be ignored. The revId of the device |
| * can be retrieved via the HAL_GetREVID() function. |
| * |
| */ |
| FLASH_SetErrorCode(); |
| return HAL_ERROR; |
| } |
| |
| /* There is no error flag set */ |
| return HAL_OK; |
| } |
| |
| |
| /** |
| * @brief Set the specific FLASH error flag. |
| * @retval None |
| */ |
| static void FLASH_SetErrorCode(void) |
| { |
| uint32_t flags = 0; |
| |
| if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR)) |
| { |
| pFlash.ErrorCode |= HAL_FLASH_ERROR_WRP; |
| flags |= FLASH_FLAG_WRPERR; |
| } |
| if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR)) |
| { |
| pFlash.ErrorCode |= HAL_FLASH_ERROR_PGA; |
| flags |= FLASH_FLAG_PGAERR; |
| } |
| if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR)) |
| { |
| pFlash.ErrorCode |= HAL_FLASH_ERROR_SIZE; |
| flags |= FLASH_FLAG_SIZERR; |
| } |
| if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR)) |
| { |
| /* WARNING : On the first cut of STM32L031xx and STM32L041xx devices, |
| * (RefID = 0x1000) the FLASH_FLAG_OPTVERR bit was not behaving |
| * as expected. If the user run an application using the first |
| * cut of the STM32L031xx device or the first cut of the STM32L041xx |
| * device, this error should be ignored. The revId of the device |
| * can be retrieved via the HAL_GetREVID() function. |
| * |
| */ |
| pFlash.ErrorCode |= HAL_FLASH_ERROR_OPTV; |
| flags |= FLASH_FLAG_OPTVERR; |
| } |
| |
| if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR)) |
| { |
| pFlash.ErrorCode |= HAL_FLASH_ERROR_RD; |
| flags |= FLASH_FLAG_RDERR; |
| } |
| if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_FWWERR)) |
| { |
| pFlash.ErrorCode |= HAL_FLASH_ERROR_FWWERR; |
| flags |= HAL_FLASH_ERROR_FWWERR; |
| } |
| if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_NOTZEROERR)) |
| { |
| pFlash.ErrorCode |= HAL_FLASH_ERROR_NOTZERO; |
| flags |= FLASH_FLAG_NOTZEROERR; |
| } |
| |
| /* Clear FLASH error pending bits */ |
| __HAL_FLASH_CLEAR_FLAG(flags); |
| } |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* HAL_FLASH_MODULE_ENABLED */ |
| |
| /** |
| * @} |
| */ |
