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/**
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******************************************************************************
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* @file stm32l1xx_hal_flash.c
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* @author MCD Application Team
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* @brief FLASH HAL module driver.
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* This file provides firmware functions to manage the following
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* functionalities of the internal FLASH memory:
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* + Program operations functions
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* + Memory Control functions
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* + Peripheral State functions
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*
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@verbatim
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==============================================================================
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##### FLASH peripheral features #####
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==============================================================================
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[..] The Flash memory interface manages CPU AHB I-Code and D-Code accesses
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to the Flash memory. It implements the erase and program Flash memory operations
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and the read and write protection mechanisms.
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[..] The Flash memory interface accelerates code execution with a system of instruction
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prefetch.
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[..] The FLASH main features are:
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(+) Flash memory read operations
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(+) Flash memory program/erase operations
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(+) Read / write protections
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(+) Prefetch on I-Code
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(+) Option Bytes programming
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##### How to use this driver #####
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==============================================================================
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[..]
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This driver provides functions and macros to configure and program the FLASH
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memory of all STM32L1xx devices.
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(#) FLASH Memory I/O Programming functions: this group includes all needed
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functions to erase and program the main memory:
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(++) Lock and Unlock the FLASH interface
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(++) Erase function: Erase page
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(++) Program functions: Fast Word and Half Page(should be
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executed from internal SRAM).
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(#) DATA EEPROM Programming functions: this group includes all
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needed functions to erase and program the DATA EEPROM memory:
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(++) Lock and Unlock the DATA EEPROM interface.
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(++) Erase function: Erase Byte, erase HalfWord, erase Word, erase
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Double Word (should be executed from internal SRAM).
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(++) Program functions: Fast Program Byte, Fast Program Half-Word,
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FastProgramWord, Program Byte, Program Half-Word,
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Program Word and Program Double-Word (should be executed
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from internal SRAM).
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(#) FLASH Option Bytes Programming functions: this group includes all needed
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functions to manage the Option Bytes:
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(++) Lock and Unlock the Option Bytes
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(++) Set/Reset the write protection
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(++) Set the Read protection Level
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(++) Program the user Option Bytes
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(++) Launch the Option Bytes loader
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(++) Set/Get the Read protection Level.
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(++) Set/Get the BOR level.
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(++) Get the Write protection.
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(++) Get the user option bytes.
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(#) Interrupts and flags management functions : this group
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includes all needed functions to:
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(++) Handle FLASH interrupts
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(++) Wait for last FLASH operation according to its status
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(++) Get error flag status
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(#) FLASH Interface configuration functions: this group includes
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the management of following features:
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(++) Enable/Disable the RUN PowerDown mode.
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(++) Enable/Disable the SLEEP PowerDown mode.
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(#) FLASH Peripheral State methods: this group includes
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the management of following features:
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(++) Wait for the FLASH operation
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(++) Get the specific FLASH error flag
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[..] In addition to these function, this driver includes a set of macros allowing
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to handle the following operations:
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(+) Set/Get the latency
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(+) Enable/Disable the prefetch buffer
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(+) Enable/Disable the 64 bit Read Access.
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(+) Enable/Disable the Flash power-down
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(+) Enable/Disable the FLASH interrupts
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(+) Monitor the FLASH flags status
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##### Programming operation functions #####
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===============================================================================
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[..]
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This subsection provides a set of functions allowing to manage the FLASH
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program operations.
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[..] The FLASH Memory Programming functions, includes the following functions:
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(+) HAL_FLASH_Unlock(void);
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(+) HAL_FLASH_Lock(void);
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(+) HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint32_t Data)
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(+) HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint32_t Data)
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[..] Any operation of erase or program should follow these steps:
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(#) Call the 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 or program data.
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(#) Call the 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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##### Option Bytes Programming functions #####
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==============================================================================
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[..] The FLASH_Option Bytes Programming_functions, includes the following functions:
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(+) HAL_FLASH_OB_Unlock(void);
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(+) HAL_FLASH_OB_Lock(void);
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(+) HAL_FLASH_OB_Launch(void);
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(+) HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit);
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(+) HAL_FLASHEx_OBGetConfig(FLASH_OBProgramInitTypeDef *pOBInit);
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[..] Any operation of erase or program should follow these steps:
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(#) Call the HAL_FLASH_OB_Unlock() function to enable the Flash option control
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register access.
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(#) Call the following functions to program the desired option bytes.
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(++) HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit);
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(#) Once all needed option bytes to be programmed are correctly written, call the
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HAL_FLASH_OB_Launch(void) function to launch the Option Bytes programming process.
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(#) Call the HAL_FLASH_OB_Lock() to disable the Flash option control register access (recommended
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to protect the option Bytes against possible unwanted operations).
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[..] Proprietary code Read Out Protection (PcROP):
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(#) The PcROP sector is selected by using the same option bytes as the Write
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protection. As a result, these 2 options are exclusive each other.
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(#) To activate PCROP mode for Flash sectors(s), you need to follow the sequence below:
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(++) Use this function HAL_FLASHEx_AdvOBProgram with PCROPState = OB_PCROP_STATE_ENABLE.
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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) 2017 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 "stm32l1xx_hal.h"
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/** @addtogroup STM32L1xx_HAL_Driver
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* @{
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*/
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#ifdef HAL_FLASH_MODULE_ENABLED
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/** @defgroup FLASH FLASH
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* @brief FLASH HAL 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 FLASH_Private_Constants FLASH Private Constants
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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 macro ---------------------------- ---------------------------------*/
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/** @defgroup FLASH_Private_Macros FLASH 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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/** @defgroup FLASH_Private_Variables 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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FLASH_ProcessTypeDef pFlash;
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/**
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* @}
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*/
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/* Private function prototypes -----------------------------------------------*/
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/** @defgroup FLASH_Private_Functions FLASH Private Functions
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* @{
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*/
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static void FLASH_SetErrorCode(void);
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extern void FLASH_PageErase(uint32_t PageAddress);
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/**
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* @}
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*/
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/* Exported functions ---------------------------------------------------------*/
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/** @defgroup FLASH_Exported_Functions FLASH Exported Functions
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* @{
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*/
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/** @defgroup FLASH_Exported_Functions_Group1 Programming operation functions
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* @brief Programming operation functions
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*
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@verbatim
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@endverbatim
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* @{
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*/
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/**
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* @brief Program word at a specified address
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* @note To correctly run this function, the HAL_FLASH_Unlock() function
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* must be called before.
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* Call the 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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*
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* @param TypeProgram Indicate the way to program at a specified address.
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* This parameter can be a value of @ref FLASH_Type_Program
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* @param Address Specifie the address to be programmed.
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* @param Data Specifie the data to be programmed
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*
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* @retval HAL_StatusTypeDef HAL Status
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*/
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HAL_StatusTypeDef HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint32_t Data)
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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_FLASH_TYPEPROGRAM(TypeProgram));
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assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
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/* Wait for last operation to be completed */
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status = FLASH_WaitForLastOperation(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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/*Program word (32-bit) at a specified address.*/
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*(__IO uint32_t *)Address = Data;
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/* Wait for last operation to be completed */
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status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE);
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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 Program word at a specified address with interrupt enabled.
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*
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* @param TypeProgram Indicate the way to program at a specified address.
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* This parameter can be a value of @ref FLASH_Type_Program
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* @param Address Specifie the address to be programmed.
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* @param Data Specifie the data to be programmed
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*
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* @retval HAL_StatusTypeDef HAL Status
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*/
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HAL_StatusTypeDef HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint32_t Data)
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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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/* Check the parameters */
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assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram));
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assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
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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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pFlash.Address = Address;
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pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAM;
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/* Clean the error context */
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pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
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if(TypeProgram == FLASH_TYPEPROGRAM_WORD)
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{
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/* Program word (32-bit) at a specified address. */
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*(__IO uint32_t *)Address = Data;
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}
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return status;
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}
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/**
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* @brief This function handles FLASH interrupt request.
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* @retval None
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*/
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void HAL_FLASH_IRQHandler(void)
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{
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uint32_t addresstmp = 0U;
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/* Check FLASH operation error flags */
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if( __HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) ||
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__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR) ||
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__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR) ||
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#if defined(FLASH_SR_RDERR)
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__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR) ||
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#endif /* FLASH_SR_RDERR */
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#if defined(FLASH_SR_OPTVERRUSR)
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__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERRUSR) ||
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#endif /* FLASH_SR_OPTVERRUSR */
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__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR) )
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{
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if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGEERASE)
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{
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/* Return the faulty sector */
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addresstmp = pFlash.Page;
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pFlash.Page = 0xFFFFFFFFU;
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}
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else
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{
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/* Return the faulty address */
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addresstmp = pFlash.Address;
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}
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/* Save the Error code */
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FLASH_SetErrorCode();
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/* FLASH error interrupt user callback */
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HAL_FLASH_OperationErrorCallback(addresstmp);
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/* Stop the procedure ongoing */
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pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
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}
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/* Check FLASH End of Operation flag */
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if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP))
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{
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/* Clear FLASH End of Operation pending bit */
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__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
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/* Process can continue only if no error detected */
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if(pFlash.ProcedureOnGoing != FLASH_PROC_NONE)
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{
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if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGEERASE)
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{
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/* Nb of pages to erased can be decreased */
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pFlash.NbPagesToErase--;
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/* Check if there are still pages to erase */
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if(pFlash.NbPagesToErase != 0U)
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{
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addresstmp = pFlash.Page;
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/*Indicate user which sector has been erased */
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HAL_FLASH_EndOfOperationCallback(addresstmp);
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/*Increment sector number*/
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addresstmp = pFlash.Page + FLASH_PAGE_SIZE;
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pFlash.Page = addresstmp;
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/* If the erase operation is completed, disable the ERASE Bit */
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CLEAR_BIT(FLASH->PECR, FLASH_PECR_ERASE);
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FLASH_PageErase(addresstmp);
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}
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else
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{
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/* No more pages to Erase, user callback can be called. */
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/* Reset Sector and stop Erase pages procedure */
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pFlash.Page = addresstmp = 0xFFFFFFFFU;
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pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
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/* FLASH EOP interrupt user callback */
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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)
|
|
|
|
{
|
|
|
|
if (HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_PRGLOCK))
|
|
|
|
{
|
|
|
|
/* Unlocking FLASH_PECR register access*/
|
|
|
|
if(HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_PELOCK))
|
|
|
|
{
|
|
|
|
WRITE_REG(FLASH->PEKEYR, FLASH_PEKEY1);
|
|
|
|
WRITE_REG(FLASH->PEKEYR, FLASH_PEKEY2);
|
|
|
|
|
|
|
|
/* Verify that PELOCK is unlocked */
|
|
|
|
if(HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_PELOCK))
|
|
|
|
{
|
|
|
|
return HAL_ERROR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Unlocking the program memory access */
|
|
|
|
WRITE_REG(FLASH->PRGKEYR, FLASH_PRGKEY1);
|
|
|
|
WRITE_REG(FLASH->PRGKEYR, FLASH_PRGKEY2);
|
|
|
|
|
|
|
|
/* Verify that PRGLOCK is unlocked */
|
|
|
|
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);
|
|
|
|
|
|
|
|
return HAL_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @brief Unlock the FLASH Option Control Registers access.
|
|
|
|
* @retval HAL Status
|
|
|
|
*/
|
|
|
|
HAL_StatusTypeDef HAL_FLASH_OB_Unlock(void)
|
|
|
|
{
|
|
|
|
if(HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_OPTLOCK))
|
|
|
|
{
|
|
|
|
/* 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);
|
|
|
|
|
|
|
|
/* Verify that PELOCK is unlocked */
|
|
|
|
if(HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_PELOCK))
|
|
|
|
{
|
|
|
|
return HAL_ERROR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Unlocking the option bytes block access */
|
|
|
|
WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY1);
|
|
|
|
WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY2);
|
|
|
|
|
|
|
|
/* Verify that OPTLOCK is unlocked */
|
|
|
|
if (HAL_IS_BIT_SET(FLASH->PECR, FLASH_PECR_OPTLOCK))
|
|
|
|
{
|
|
|
|
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_OPTVERR) ||
|
|
|
|
#if defined(FLASH_SR_RDERR)
|
|
|
|
__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR) ||
|
|
|
|
#endif /* FLASH_SR_RDERR */
|
|
|
|
#if defined(FLASH_SR_OPTVERRUSR)
|
|
|
|
__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERRUSR) ||
|
|
|
|
#endif /* FLASH_SR_OPTVERRUSR */
|
|
|
|
__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR))
|
|
|
|
{
|
|
|
|
/*Save the error code*/
|
|
|
|
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 = 0U;
|
|
|
|
|
|
|
|
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_OPTVERR))
|
|
|
|
{
|
|
|
|
pFlash.ErrorCode |= HAL_FLASH_ERROR_OPTV;
|
|
|
|
flags |= FLASH_FLAG_OPTVERR;
|
|
|
|
}
|
|
|
|
|
|
|
|
#if defined(FLASH_SR_RDERR)
|
|
|
|
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR))
|
|
|
|
{
|
|
|
|
pFlash.ErrorCode |= HAL_FLASH_ERROR_RD;
|
|
|
|
flags |= FLASH_FLAG_RDERR;
|
|
|
|
}
|
|
|
|
#endif /* FLASH_SR_RDERR */
|
|
|
|
#if defined(FLASH_SR_OPTVERRUSR)
|
|
|
|
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERRUSR))
|
|
|
|
{
|
|
|
|
pFlash.ErrorCode |= HAL_FLASH_ERROR_OPTVUSR;
|
|
|
|
flags |= FLASH_FLAG_OPTVERRUSR;
|
|
|
|
}
|
|
|
|
#endif /* FLASH_SR_OPTVERRUSR */
|
|
|
|
|
|
|
|
/* Clear FLASH error pending bits */
|
|
|
|
__HAL_FLASH_CLEAR_FLAG(flags);
|
|
|
|
}
|
|
|
|
/**
|
|
|
|
* @}
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @}
|
|
|
|
*/
|
|
|
|
|
|
|
|
#endif /* HAL_FLASH_MODULE_ENABLED */
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @}
|
|
|
|
*/
|
|
|
|
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
