Diff: targets/TARGET_STM/TARGET_STM32F0/device/stm32f0xx_hal_flash.c

Revision:

149:156823d33999

Parent:

144:ef7eb2e8f9f7

Child:

156:95d6b41a828b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_STM/TARGET_STM32F0/device/stm32f0xx_hal_flash.c	Fri Oct 28 11:17:30 2016 +0100
@@ -0,0 +1,708 @@
+/**
+  ******************************************************************************
+  * @file    stm32f0xx_hal_flash.c
+  * @author  MCD Application Team
+  * @version V1.4.0
+  * @date    27-May-2016
+  * @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
+  *         
+  @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 STM32F0xx 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, erase all pages
+        (++) Program functions: half word, word and doubleword
+      (#) 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
+        (++) Erase Option Bytes
+        (++) Program the data Option Bytes
+        (++) 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
+
+  [..] 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 FLASH interrupts
+      (+) Monitor the FLASH flags status
+          
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************  
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx_hal.h"
+
+/** @addtogroup STM32F0xx_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_Program_HalfWord(uint32_t Address, uint16_t Data);
+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 halfword, word or double word at a specified address
+  * @note   The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
+  *         The function HAL_FLASH_Lock() should be called after to lock the FLASH interface
+  *
+  * @note   If an erase and a program operations are requested simultaneously,    
+  *         the erase operation is performed before the program one.
+  *  
+  * @note   FLASH should be previously erased before new programmation (only exception to this 
+  *         is when 0x0000 is programmed)
+  *
+  * @param  TypeProgram:  Indicate the way to program at a specified address.
+  *                       This parameter can be a value of @ref FLASH_Type_Program
+  * @param  Address:      Specifies the address to be programmed.
+  * @param  Data:         Specifies the data to be programmed
+  * 
+  * @retval HAL_StatusTypeDef HAL Status
+  */
+HAL_StatusTypeDef HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
+{
+  HAL_StatusTypeDef status = HAL_ERROR;
+  uint8_t index = 0;
+  uint8_t nbiterations = 0;
+  
+  /* 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)
+  {
+    if(TypeProgram == FLASH_TYPEPROGRAM_HALFWORD)
+    {
+      /* Program halfword (16-bit) at a specified address. */
+      nbiterations = 1;
+    }
+    else if(TypeProgram == FLASH_TYPEPROGRAM_WORD)
+    {
+      /* Program word (32-bit = 2*16-bit) at a specified address. */
+      nbiterations = 2;
+    }
+    else
+    {
+      /* Program double word (64-bit = 4*16-bit) at a specified address. */
+      nbiterations = 4;
+    }
+
+    for (index = 0; index < nbiterations; index++)
+    {
+      FLASH_Program_HalfWord((Address + (2*index)), (uint16_t)(Data >> (16*index)));
+
+        /* Wait for last operation to be completed */
+        status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE);
+    
+        /* If the program operation is completed, disable the PG Bit */
+        CLEAR_BIT(FLASH->CR, FLASH_CR_PG);
+      /* In case of error, stop programation procedure */
+      if (status != HAL_OK)
+      {
+        break;
+      }
+    }
+  }
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(&pFlash);
+
+  return status;
+}
+
+/**
+  * @brief  Program halfword, word or double word at a specified address  with interrupt enabled.
+  * @note   The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
+  *         The function HAL_FLASH_Lock() should be called after to lock the FLASH interface
+  *
+  * @note   If an erase and a program operations are requested simultaneously,    
+  *         the erase operation is performed before the program one.
+  *
+  * @param  TypeProgram: Indicate the way to program at a specified address.
+  *                      This parameter can be a value of @ref FLASH_Type_Program
+  * @param  Address:     Specifies the address to be programmed.
+  * @param  Data:        Specifies the data to be programmed
+  * 
+  * @retval HAL_StatusTypeDef HAL Status
+  */
+HAL_StatusTypeDef HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint64_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.Data = Data;
+
+  if(TypeProgram == FLASH_TYPEPROGRAM_HALFWORD)
+  {
+    pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMHALFWORD;
+    /* Program halfword (16-bit) at a specified address. */
+    pFlash.DataRemaining = 1;
+  }
+  else if(TypeProgram == FLASH_TYPEPROGRAM_WORD)
+  {
+    pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMWORD;
+    /* Program word (32-bit : 2*16-bit) at a specified address. */
+    pFlash.DataRemaining = 2;
+  }
+  else
+  {
+    pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMDOUBLEWORD;
+    /* Program double word (64-bit : 4*16-bit) at a specified address. */
+    pFlash.DataRemaining = 4;
+  }
+
+  /* Program halfword (16-bit) at a specified address. */
+  FLASH_Program_HalfWord(Address, (uint16_t)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 */
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) ||__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR))
+  {
+    /* Return the faulty address */
+    addresstmp = pFlash.Address;
+    /* Reset address */
+    pFlash.Address = 0xFFFFFFFFU;
+  
+    /* 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.DataRemaining--;
+
+        /* Check if there are still pages to erase */
+        if(pFlash.DataRemaining != 0)
+        {
+          addresstmp = pFlash.Address;
+          /*Indicate user which sector has been erased */
+          HAL_FLASH_EndOfOperationCallback(addresstmp);
+
+          /*Increment sector number*/
+          addresstmp = pFlash.Address + FLASH_PAGE_SIZE;
+          pFlash.Address = addresstmp;
+
+          /* If the erase operation is completed, disable the PER Bit */
+          CLEAR_BIT(FLASH->CR, FLASH_CR_PER);
+
+          FLASH_PageErase(addresstmp);
+        }
+        else
+        {
+          /* No more pages to Erase, user callback can be called. */
+          /* Reset Sector and stop Erase pages procedure */
+          pFlash.Address = addresstmp = 0xFFFFFFFFU;
+          pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
+          /* FLASH EOP interrupt user callback */
+          HAL_FLASH_EndOfOperationCallback(addresstmp);
+        }
+      }
+      else if(pFlash.ProcedureOnGoing == FLASH_PROC_MASSERASE)
+      {
+        /* Operation is completed, disable the MER Bit */
+        CLEAR_BIT(FLASH->CR, FLASH_CR_MER);
+
+          /* MassErase ended. Return the selected bank */
+          /* FLASH EOP interrupt user callback */
+          HAL_FLASH_EndOfOperationCallback(0);
+
+          /* Stop Mass Erase procedure*/
+          pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
+        }
+      else
+      {
+        /* Nb of 16-bit data to program can be decreased */
+        pFlash.DataRemaining--;
+        
+        /* Check if there are still 16-bit data to program */
+        if(pFlash.DataRemaining != 0)
+        {
+          /* Increment address to 16-bit */
+          pFlash.Address += 2;
+          addresstmp = pFlash.Address;
+          
+          /* Shift to have next 16-bit data */
+          pFlash.Data = (pFlash.Data >> 16);
+          
+          /* Operation is completed, disable the PG Bit */
+          CLEAR_BIT(FLASH->CR, FLASH_CR_PG);
+
+          /*Program halfword (16-bit) at a specified address.*/
+          FLASH_Program_HalfWord(addresstmp, (uint16_t)pFlash.Data);
+        }
+        else
+        {
+          /* Program ended. Return the selected address */
+          /* FLASH EOP interrupt user callback */
+          if (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAMHALFWORD)
+          {
+            HAL_FLASH_EndOfOperationCallback(pFlash.Address);
+          }
+          else if (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAMWORD)
+          {
+            HAL_FLASH_EndOfOperationCallback(pFlash.Address - 2);
+          }
+          else 
+          {
+            HAL_FLASH_EndOfOperationCallback(pFlash.Address - 6);
+          }
+        
+          /* 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 PG, PER and MER Bits */
+    CLEAR_BIT(FLASH->CR, (FLASH_CR_PG | FLASH_CR_PER | FLASH_CR_MER));
+
+    /* 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
+  *                 - Mass Erase: No return value expected
+  *                 - 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
+  *                 - Mass Erase: No return value expected
+  *                 - 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->CR, FLASH_CR_LOCK))
+  {
+    /* Authorize the FLASH Registers access */
+    WRITE_REG(FLASH->KEYR, FLASH_KEY1);
+    WRITE_REG(FLASH->KEYR, FLASH_KEY2);
+  }
+  else
+  {
+    return HAL_ERROR;
+  }
+
+  return HAL_OK; 
+}
+
+/**
+  * @brief  Locks the FLASH control register access
+  * @retval HAL Status
+  */
+HAL_StatusTypeDef HAL_FLASH_Lock(void)
+{
+  /* Set the LOCK Bit to lock the FLASH Registers access */
+  SET_BIT(FLASH->CR, FLASH_CR_LOCK);
+  
+  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_CLR(FLASH->CR, FLASH_CR_OPTWRE))
+  {
+    /* Authorizes the Option Byte register programming */
+    WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY1);
+    WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY2);
+  }
+  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)
+{
+  /* Clear the OPTWRE Bit to lock the FLASH Option Byte Registers access */
+  CLEAR_BIT(FLASH->CR, FLASH_CR_OPTWRE);
+  
+  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->CR, FLASH_CR_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  Program a half-word (16-bit) at a specified address.
+  * @param  Address specify the address to be programmed.
+  * @param  Data    specify the data to be programmed.
+  * @retval None
+  */
+static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data)
+{
+  /* Clean the error context */
+  pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
+  
+    /* Proceed to program the new data */
+    SET_BIT(FLASH->CR, FLASH_CR_PG);
+
+  /* Write data in the address */
+  *(__IO uint16_t*)Address = Data;
+}
+
+/**
+  * @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 == 0) || ((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_PGERR))
+  {
+    /*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 = 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_PGERR))
+  {
+    pFlash.ErrorCode |= HAL_FLASH_ERROR_PROG;
+    flags |= FLASH_FLAG_PGERR;
+  }
+  /* Clear FLASH error pending bits */
+  __HAL_FLASH_CLEAR_FLAG(flags);
+}  
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/