git-svn-id: https://svn.code.sf.net/p/openblt/code/trunk@409 5dc33758-31d5-4daf-9ae8-b24bf3d40d73
708 lines
22 KiB
C
708 lines
22 KiB
C
/**
|
|
******************************************************************************
|
|
* @file stm32f3xx_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
|
|
*
|
|
@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 STM32F3xx 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 half cycle access
|
|
(+) Enable/Disable the FLASH interrupts
|
|
(+) Monitor the FLASH flags status
|
|
|
|
@endverbatim
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© 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 "stm32f3xx_hal.h"
|
|
|
|
/** @addtogroup STM32F3xx_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 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, uint64_t Data)
|
|
{
|
|
HAL_StatusTypeDef status = HAL_ERROR;
|
|
uint8_t index = 0U;
|
|
uint8_t nbiterations = 0U;
|
|
|
|
/* 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 = 1U;
|
|
}
|
|
else if(TypeProgram == FLASH_TYPEPROGRAM_WORD)
|
|
{
|
|
/* Program word (32-bit = 2*16-bit) at a specified address. */
|
|
nbiterations = 2U;
|
|
}
|
|
else
|
|
{
|
|
/* Program double word (64-bit = 4*16-bit) at a specified address. */
|
|
nbiterations = 4U;
|
|
}
|
|
|
|
for (index = 0U; index < nbiterations; index++)
|
|
{
|
|
FLASH_Program_HalfWord((Address + (2U*index)), (uint16_t)(Data >> (16U*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 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, 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 = 1U;
|
|
}
|
|
else if(TypeProgram == FLASH_TYPEPROGRAM_WORD)
|
|
{
|
|
pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMWORD;
|
|
/* Program word (32-bit : 2*16-bit) at a specified address. */
|
|
pFlash.DataRemaining = 2U;
|
|
}
|
|
else
|
|
{
|
|
pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMDOUBLEWORD;
|
|
/* Program double word (64-bit : 4*16-bit) at a specified address. */
|
|
pFlash.DataRemaining = 4U;
|
|
}
|
|
|
|
/* 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 = 0U;
|
|
|
|
/* 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 != 0U)
|
|
{
|
|
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(0U);
|
|
|
|
/* 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 != 0U)
|
|
{
|
|
/* Increment address to 16-bit */
|
|
pFlash.Address += 2U;
|
|
addresstmp = pFlash.Address;
|
|
|
|
/* Shift to have next 16-bit data */
|
|
pFlash.Data = (pFlash.Data >> 16U);
|
|
|
|
/* 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 - 2U);
|
|
}
|
|
else
|
|
{
|
|
HAL_FLASH_EndOfOperationCallback(pFlash.Address - 6U);
|
|
}
|
|
|
|
/* 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 == 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_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 = 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_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****/
|