--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/l476rg/Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash.c	Thu Jan 12 02:45:43 2017 +0300
@@ -0,0 +1,824 @@
+/**
+  ******************************************************************************
+  * @file    stm32l4xx_hal_flash.c
+  * @author  MCD Application Team
+  * @version V1.6.0 
+  * @date    28-October-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 Errors 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 and cache lines. 
+
+  [..] The FLASH main features are:
+      (+) Flash memory read operations
+      (+) Flash memory program/erase operations
+      (+) Read / write protections
+      (+) Option bytes programming
+      (+) Prefetch on I-Code
+      (+) 32 cache lines of 4*64 bits on I-Code
+      (+) 8 cache lines of 4*64 bits on D-Code
+      (+) Error code correction (ECC) : Data in flash are 72-bits word
+          (8 bits added per double word)
+      
+      
+                        ##### How to use this driver #####
+ ==============================================================================
+    [..]                             
+      This driver provides functions and macros to configure and program the FLASH  
+      memory of all STM32L4xx devices. 
+   
+      (#) Flash Memory IO Programming functions: 
+           (++) Lock and Unlock the FLASH interface using HAL_FLASH_Unlock() and 
+                HAL_FLASH_Lock() functions
+           (++) Program functions: double word and fast program (full row programming)
+           (++) There Two modes of programming :
+            (+++) Polling mode using HAL_FLASH_Program() function
+            (+++) Interrupt mode using HAL_FLASH_Program_IT() function
+    
+      (#) Interrupts and flags management functions : 
+           (++) Handle FLASH interrupts by calling HAL_FLASH_IRQHandler()
+           (++) Callback functions are called when the flash operations are finished :
+                HAL_FLASH_EndOfOperationCallback() when everything is ok, otherwise
+                HAL_FLASH_OperationErrorCallback()
+           (++) Get error flag status by calling HAL_GetError()    
+           
+      (#) Option bytes management functions :
+           (++) Lock and Unlock the option bytes using HAL_FLASH_OB_Unlock() and
+                HAL_FLASH_OB_Lock() functions
+           (++) Launch the reload of the option bytes using HAL_FLASH_Launch() function.
+                In this case, a reset is generated
+                         
+    [..] 
+      In addition to these functions, this driver includes a set of macros allowing
+      to handle the following operations:
+       (+) Set the latency
+       (+) Enable/Disable the prefetch buffer
+       (+) Enable/Disable the Instruction cache and the Data cache
+       (+) Reset the Instruction cache and the Data cache
+       (+) Enable/Disable the Flash power-down during low-power run and sleep modes
+       (+) 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 "stm32l4xx_hal.h"
+
+/** @addtogroup STM32L4xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup FLASH FLASH
+  * @brief FLASH HAL module driver
+  * @{
+  */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private defines -----------------------------------------------------------*/
+#define FLASH_NB_DOUBLE_WORDS_IN_ROW  32 
+/* Private macros ------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/** @defgroup FLASH_Private_Variables FLASH Private Variables
+ * @{
+ */
+/**
+  * @brief  Variable used for Program/Erase sectors under interruption 
+  */
+FLASH_ProcessTypeDef pFlash;
+/**
+  * @}
+  */
+
+/* Private function prototypes -----------------------------------------------*/
+/** @defgroup FLASH_Private_Functions FLASH Private Functions
+ * @{
+ */
+HAL_StatusTypeDef    FLASH_WaitForLastOperation(uint32_t Timeout);
+extern void          FLASH_PageErase(uint32_t Page, uint32_t Banks);
+extern void          FLASH_FlushCaches(void);
+static void          FLASH_SetErrorCode(void);
+static void          FLASH_Program_DoubleWord(uint32_t Address, uint64_t Data);
+static void          FLASH_Program_Fast(uint32_t Address, uint32_t DataAddress);
+/**
+  * @}
+  */
+
+/* Exported functions --------------------------------------------------------*/
+/** @defgroup FLASH_Exported_Functions FLASH Exported Functions
+  * @{
+  */
+
+/** @defgroup FLASH_Exported_Functions_Group1 Programming operation functions 
+ *  @brief   Programming operation functions 
+ *
+@verbatim   
+ ===============================================================================
+                  ##### Programming operation functions #####
+ ===============================================================================
+    [..]
+    This subsection provides a set of functions allowing to manage the FLASH 
+    program operations.
+ 
+@endverbatim
+  * @{
+  */
+ 
+/**
+  * @brief  Program double word or fast program of a row at a specified address.
+  * @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
+  *                This parameter is the data for the double word program and the address where 
+  *                are stored the data for the row fast program
+  * 
+  * @retval HAL_StatusTypeDef HAL Status
+  */
+HAL_StatusTypeDef HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
+{
+  HAL_StatusTypeDef status = HAL_ERROR;
+  uint32_t prog_bit = 0;
+  
+  /* Process Locked */
+  __HAL_LOCK(&pFlash);
+
+  /* Check the parameters */
+  assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram));
+
+  /* Wait for last operation to be completed */
+  status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
+  
+  if(status == HAL_OK)
+  {
+    pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
+
+    /* Deactivate the data cache if they are activated to avoid data misbehavior */
+    if(READ_BIT(FLASH->ACR, FLASH_ACR_DCEN) != RESET)
+    {
+      /* Disable data cache  */
+      __HAL_FLASH_DATA_CACHE_DISABLE();
+      pFlash.CacheToReactivate = FLASH_CACHE_DCACHE_ENABLED;
+    }
+    else
+    {
+      pFlash.CacheToReactivate = FLASH_CACHE_DISABLED;
+    }
+
+    if(TypeProgram == FLASH_TYPEPROGRAM_DOUBLEWORD)
+    {
+      /* Program double-word (64-bit) at a specified address */
+      FLASH_Program_DoubleWord(Address, Data);
+      prog_bit = FLASH_CR_PG;
+    }
+    else if((TypeProgram == FLASH_TYPEPROGRAM_FAST) || (TypeProgram == FLASH_TYPEPROGRAM_FAST_AND_LAST))
+    {
+      /* Fast program a 32 row double-word (64-bit) at a specified address */
+      FLASH_Program_Fast(Address, (uint32_t)Data);
+      
+      /* If it is the last row, the bit will be cleared at the end of the operation */
+      if(TypeProgram == FLASH_TYPEPROGRAM_FAST_AND_LAST)
+      {
+        prog_bit = FLASH_CR_FSTPG;
+      }
+    }
+
+    /* Wait for last operation to be completed */
+    status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
+    
+    /* If the program operation is completed, disable the PG or FSTPG Bit */
+    if (prog_bit != 0)
+    {
+      CLEAR_BIT(FLASH->CR, prog_bit);
+    }
+
+    /* Flush the caches to be sure of the data consistency */
+    FLASH_FlushCaches();
+  }
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(&pFlash);
+
+  return status;  
+}
+
+/**
+  * @brief  Program double word or fast program of a row 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:  specifies the address to be programmed.
+  * @param  Data: specifies the data to be programmed
+  *                This parameter is the data for the double word program and the address where 
+  *                are stored the data for the row fast program
+  * 
+  * @retval HAL Status
+  */
+HAL_StatusTypeDef HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
+{
+  HAL_StatusTypeDef status = HAL_OK;
+
+  /* Check the parameters */
+  assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram));
+
+  /* Process Locked */
+  __HAL_LOCK(&pFlash);
+
+  pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
+
+  /* Deactivate the data cache if they are activated to avoid data misbehavior */
+  if(READ_BIT(FLASH->ACR, FLASH_ACR_DCEN) != RESET)
+  {
+    /* Disable data cache  */
+    __HAL_FLASH_DATA_CACHE_DISABLE();
+    pFlash.CacheToReactivate = FLASH_CACHE_DCACHE_ENABLED;
+  }
+  else
+  {
+    pFlash.CacheToReactivate = FLASH_CACHE_DISABLED;
+  }
+
+  /* Set internal variables used by the IRQ handler */
+  if(TypeProgram == FLASH_TYPEPROGRAM_FAST_AND_LAST)
+  {
+    pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAM_LAST;
+  }
+  else
+  {
+    pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAM;
+  }
+  pFlash.Address = Address;
+    
+  /* Enable End of Operation and Error interrupts */
+  __HAL_FLASH_ENABLE_IT(FLASH_IT_EOP | FLASH_IT_OPERR);
+
+  if(TypeProgram == FLASH_TYPEPROGRAM_DOUBLEWORD)
+  {
+    /* Program double-word (64-bit) at a specified address */
+    FLASH_Program_DoubleWord(Address, Data);
+  }
+  else if((TypeProgram == FLASH_TYPEPROGRAM_FAST) || (TypeProgram == FLASH_TYPEPROGRAM_FAST_AND_LAST))
+  {
+    /* Fast program a 32 row double-word (64-bit) at a specified address */
+    FLASH_Program_Fast(Address, (uint32_t)Data);
+  }
+
+  return status;  
+}
+
+/**
+  * @brief Handle FLASH interrupt request.
+  * @retval None
+  */
+void HAL_FLASH_IRQHandler(void)
+{
+  uint32_t tmp_page;
+
+  /* If the operation is completed, disable the PG, PNB, MER1, MER2 and PER Bit */
+  CLEAR_BIT(FLASH->CR, (FLASH_CR_PG | FLASH_CR_MER1 | FLASH_CR_PER | FLASH_CR_PNB));
+#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx)
+  CLEAR_BIT(FLASH->CR, FLASH_CR_MER2);
+#endif
+  
+  /* Disable the FSTPG Bit only if it is the last row programmed */
+  if(pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAM_LAST)
+  {
+    CLEAR_BIT(FLASH->CR, FLASH_CR_FSTPG);
+  }
+
+  /* Check FLASH operation error flags */
+  if((__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR))  || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PROGERR)) || 
+     (__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_PGSERR))  ||
+     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_MISERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_FASTERR)) || 
+     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR))  || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR)) ||
+#if defined (STM32L431xx) || defined (STM32L432xx) || defined (STM32L433xx) || defined (STM32L442xx) || defined (STM32L443xx) || \
+    defined (STM32L451xx) || defined (STM32L452xx) || defined (STM32L462xx)
+     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_ECCD))   || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PEMPTY)))
+#else
+     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_ECCD)))
+#endif
+  {
+    /*Save the error code*/
+    FLASH_SetErrorCode();
+    
+    /* Flush the caches to be sure of the data consistency */
+    FLASH_FlushCaches() ;
+
+    /* FLASH error interrupt user callback */
+    if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGE_ERASE)
+    {
+       HAL_FLASH_OperationErrorCallback(pFlash.Page);
+    }
+    else if(pFlash.ProcedureOnGoing == FLASH_PROC_MASS_ERASE)
+    {
+        HAL_FLASH_OperationErrorCallback(pFlash.Bank);
+    }
+    else if((pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAM) || 
+            (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAM_LAST))
+    {
+       HAL_FLASH_OperationErrorCallback(pFlash.Address);
+    }
+
+    /*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);
+
+    if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGE_ERASE)
+    {
+      /* Nb of pages to erased can be decreased */
+      pFlash.NbPagesToErase--;
+
+      /* Check if there are still pages to erase*/
+      if(pFlash.NbPagesToErase != 0)
+      {
+        /* Indicate user which page has been erased*/
+        HAL_FLASH_EndOfOperationCallback(pFlash.Page);
+
+        /* Increment page number */
+        pFlash.Page++;
+        tmp_page = pFlash.Page;
+        FLASH_PageErase(tmp_page, pFlash.Bank);
+      }
+      else
+      {
+        /* No more pages to Erase */
+        /* Reset Address and stop Erase pages procedure */
+        pFlash.Page = 0xFFFFFFFF;
+        pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
+
+        /* Flush the caches to be sure of the data consistency */
+        FLASH_FlushCaches() ;
+        
+        /* FLASH EOP interrupt user callback */
+        HAL_FLASH_EndOfOperationCallback(pFlash.Page);
+      }
+    }
+    else
+    {
+      /* Flush the caches to be sure of the data consistency */
+      FLASH_FlushCaches() ;
+
+      if(pFlash.ProcedureOnGoing == FLASH_PROC_MASS_ERASE)
+      {
+        /* MassErase ended. Return the selected bank */
+        /* FLASH EOP interrupt user callback */
+        HAL_FLASH_EndOfOperationCallback(pFlash.Bank);
+      }
+      else if((pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAM) || 
+              (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAM_LAST))
+      {
+        /* Program ended. Return the selected address */
+        /* FLASH EOP interrupt user callback */
+        HAL_FLASH_EndOfOperationCallback(pFlash.Address);
+      }
+
+      /*Clear the procedure ongoing*/
+      pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
+    }
+  }
+
+  if(pFlash.ProcedureOnGoing == FLASH_PROC_NONE)
+  {
+    /* Disable End of Operation and Error interrupts */
+    __HAL_FLASH_DISABLE_IT(FLASH_IT_EOP | FLASH_IT_OPERR);
+
+    /* 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: Bank number which has been requested to erase
+  *                  Page Erase: 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: Bank number which has been requested to erase
+  *                 Page Erase: Page number 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(READ_BIT(FLASH->CR, FLASH_CR_LOCK) != RESET)
+  {
+    /* 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  Lock 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 Bytes Registers access.
+  * @retval HAL Status
+  */
+HAL_StatusTypeDef HAL_FLASH_OB_Unlock(void)
+{
+  if(READ_BIT(FLASH->CR, FLASH_CR_OPTLOCK) != RESET)
+  {
+    /* 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 Bytes Registers access.
+  * @retval HAL Status 
+  */
+HAL_StatusTypeDef HAL_FLASH_OB_Lock(void)
+{
+  /* Set the OPTLOCK Bit to lock the FLASH Option Byte Registers access */
+  SET_BIT(FLASH->CR, FLASH_CR_OPTLOCK);
+  
+  return HAL_OK;  
+}
+
+/**
+  * @brief  Launch the option byte loading.
+  * @retval HAL Status
+  */
+HAL_StatusTypeDef HAL_FLASH_OB_Launch(void)
+{
+  /* Set the bit to force the option byte reloading */
+  SET_BIT(FLASH->CR, FLASH_CR_OBL_LAUNCH); 
+
+  /* Wait for last operation to be completed */
+  return(FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE)); 
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup FLASH_Exported_Functions_Group3 Peripheral State and Errors functions 
+ *  @brief   Peripheral Errors functions 
+ *
+@verbatim   
+ ===============================================================================
+                ##### Peripheral Errors functions #####
+ ===============================================================================  
+    [..]
+    This subsection permits 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:
+  *            @arg HAL_FLASH_ERROR_RD: FLASH Read Protection error flag (PCROP)
+  *            @arg HAL_FLASH_ERROR_PGS: FLASH Programming Sequence error flag 
+  *            @arg HAL_FLASH_ERROR_PGP: FLASH Programming Parallelism error flag  
+  *            @arg HAL_FLASH_ERROR_PGA: FLASH Programming Alignment error flag
+  *            @arg HAL_FLASH_ERROR_WRP: FLASH Write protected error flag
+  *            @arg HAL_FLASH_ERROR_OPERATION: FLASH operation Error flag 
+  *            @arg HAL_FLASH_ERROR_NONE: No error set 
+  *            @arg HAL_FLASH_ERROR_OP: FLASH Operation error
+  *            @arg HAL_FLASH_ERROR_PROG: FLASH Programming error
+  *            @arg HAL_FLASH_ERROR_WRP: FLASH Write protection error
+  *            @arg HAL_FLASH_ERROR_PGA: FLASH Programming alignment error
+  *            @arg HAL_FLASH_ERROR_SIZ: FLASH Size error
+  *            @arg HAL_FLASH_ERROR_PGS: FLASH Programming sequence error
+  *            @arg HAL_FLASH_ERROR_MIS: FLASH Fast programming data miss error
+  *            @arg HAL_FLASH_ERROR_FAST: FLASH Fast programming error
+  *            @arg HAL_FLASH_ERROR_RD: FLASH PCROP read error
+  *            @arg HAL_FLASH_ERROR_OPTV: FLASH Option validity error
+  *            @arg FLASH_FLAG_PEMPTY : FLASH Boot from not programmed flash (apply only for STM32L43x/STM32L44x devices)
+  *            @arg HAL_FLASH_ERROR_ECCD: FLASH two ECC errors have been detected
+  */
+uint32_t HAL_FLASH_GetError(void)
+{ 
+   return pFlash.ErrorCode;
+}
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/* Private functions ---------------------------------------------------------*/
+
+/** @addtogroup FLASH_Private_Functions
+  * @{
+  */
+
+/**
+  * @brief  Wait for a FLASH operation to complete.
+  * @param  Timeout: maximum flash operation timeout
+  * @retval HAL_StatusTypeDef 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 timeout = HAL_GetTick() + Timeout;
+     
+  while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY)) 
+  { 
+    if(Timeout != HAL_MAX_DELAY)
+    {
+      if(HAL_GetTick() >= timeout)
+      {
+        return HAL_TIMEOUT;
+      }
+    } 
+  }
+  
+  if((__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR))  || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PROGERR)) || 
+     (__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_PGSERR))  ||
+     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_MISERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_FASTERR)) || 
+     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR))  || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR)) ||
+#if defined (STM32L431xx) || defined (STM32L432xx) || defined (STM32L433xx) || defined (STM32L442xx) || defined (STM32L443xx) || \
+    defined (STM32L451xx) || defined (STM32L452xx) || defined (STM32L462xx)
+     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_ECCD))   || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PEMPTY)))
+#else
+     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_ECCD)))
+#endif
+  {
+    /*Save the error code*/
+    FLASH_SetErrorCode();
+    
+    return HAL_ERROR;
+  }
+
+  /* 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 there is an error flag set */
+  return HAL_OK;  
+}
+
+/**
+  * @brief  Set the specific FLASH error flag.
+  * @retval None
+  */
+static void FLASH_SetErrorCode(void)
+{  
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR))
+  {
+    pFlash.ErrorCode |= HAL_FLASH_ERROR_OP;
+  }
+
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PROGERR))
+  { 
+    pFlash.ErrorCode |= HAL_FLASH_ERROR_PROG;
+  }
+
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR))
+  { 
+    pFlash.ErrorCode |= HAL_FLASH_ERROR_WRP;
+  }
+
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR))
+  { 
+    pFlash.ErrorCode |= HAL_FLASH_ERROR_PGA;
+  }
+
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR))
+  { 
+    pFlash.ErrorCode |= HAL_FLASH_ERROR_SIZ;
+  }
+
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGSERR))
+  { 
+    pFlash.ErrorCode |= HAL_FLASH_ERROR_PGS;
+  }
+
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_MISERR))
+  { 
+   pFlash.ErrorCode |= HAL_FLASH_ERROR_MIS;
+  }
+
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_FASTERR))
+  { 
+   pFlash.ErrorCode |= HAL_FLASH_ERROR_FAST;
+  }
+
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR))
+  { 
+   pFlash.ErrorCode |= HAL_FLASH_ERROR_RD;
+  }
+
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR))
+  { 
+   pFlash.ErrorCode |= HAL_FLASH_ERROR_OPTV;
+  }
+
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_ECCD))
+  { 
+   pFlash.ErrorCode |= HAL_FLASH_ERROR_ECCD;
+  }
+
+#if defined (STM32L431xx) || defined (STM32L432xx) || defined (STM32L433xx) || defined (STM32L442xx) || defined (STM32L443xx) || \
+    defined (STM32L451xx) || defined (STM32L452xx) || defined (STM32L462xx)
+  if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PEMPTY))
+  { 
+    pFlash.ErrorCode |= HAL_FLASH_ERROR_PEMPTY;
+    __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_PEMPTY);
+  }
+#endif
+  
+  /* Clear error programming flags */
+  __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_ALL_ERRORS);
+} 
+
+/**
+  * @brief  Program double-word (64-bit) at a specified address.
+  * @param  Address: specifies the address to be programmed.
+  * @param  Data: specifies the data to be programmed.
+  * @retval None
+  */
+static void FLASH_Program_DoubleWord(uint32_t Address, uint64_t Data)
+{
+  /* Check the parameters */
+  assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
+
+  /* Set PG bit */
+  SET_BIT(FLASH->CR, FLASH_CR_PG);
+  
+  /* Program the double word */
+  *(__IO uint32_t*)Address = (uint32_t)Data;
+  *(__IO uint32_t*)(Address+4) = (uint32_t)(Data >> 32);
+}
+
+/**
+  * @brief  Fast program a row double-word (64-bit) at a specified address.
+  * @param  Address: specifies the address to be programmed.
+  * @param  DataAddress: specifies the address where the data are stored.
+  * @retval None
+  */
+static void FLASH_Program_Fast(uint32_t Address, uint32_t DataAddress)
+{
+  uint8_t row_index = (2*FLASH_NB_DOUBLE_WORDS_IN_ROW);
+  __IO uint32_t *dest_addr = (__IO uint32_t*)Address;
+  __IO uint32_t *src_addr = (__IO uint32_t*)DataAddress;
+
+  /* Check the parameters */
+  assert_param(IS_FLASH_MAIN_MEM_ADDRESS(Address));
+
+  /* Set FSTPG bit */
+  SET_BIT(FLASH->CR, FLASH_CR_FSTPG);
+  
+  /* Disable interrupts to avoid any interruption during the loop */
+  __disable_irq();
+  
+  /* Program the double word of the row */
+  do
+  {
+    *dest_addr++ = *src_addr++;
+  } while (--row_index != 0);
+
+  /* Re-enable the interrupts */
+  __enable_irq();
+}
+
+/**
+  * @}
+  */
+
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/