/**
******************************************************************************
* @file stm32f4xx_hal_flash_ex.c
* @author MCD Application Team
* @version V1.3.2
* @date 26-June-2015
* @brief Extended FLASH HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the FLASH extension peripheral:
* + Extended programming operations functions
*
@verbatim
==============================================================================
##### Flash Extension features #####
==============================================================================
[..] Comparing to other previous devices, the FLASH interface for STM32F427xx/437xx and
STM32F429xx/439xx devices contains the following additional features
(+) Capacity up to 2 Mbyte with dual bank architecture supporting read-while-write
capability (RWW)
(+) Dual bank memory organization
(+) PCROP protection for all banks
##### How to use this driver #####
==============================================================================
[..] This driver provides functions to configure and program the FLASH memory
of all STM32F427xx/437xx andSTM32F429xx/439xx devices. It includes
(#) FLASH Memory Erase functions:
(++) Lock and Unlock the FLASH interface using HAL_FLASH_Unlock() and
HAL_FLASH_Lock() functions
(++) Erase function: Erase sector, erase all sectors
(++) There are two modes of erase :
(+++) Polling Mode using HAL_FLASHEx_Erase()
(+++) Interrupt Mode using HAL_FLASHEx_Erase_IT()
(#) Option Bytes Programming functions: Use HAL_FLASHEx_OBProgram() to :
(++) Set/Reset the write protection
(++) Set the Read protection Level
(++) Set the BOR level
(++) Program the user Option Bytes
(#) Advanced Option Bytes Programming functions: Use HAL_FLASHEx_AdvOBProgram() to :
(++) Extended space (bank 2) erase function
(++) Full FLASH space (2 Mo) erase (bank 1 and bank 2)
(++) Dual Boot activation
(++) Write protection configuration for bank 2
(++) PCROP protection configuration and control for both banks
@endverbatim
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2015 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 "stm32f4xx_hal.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
/** @defgroup FLASHEx FLASHEx
* @brief FLASH HAL Extension module driver
* @{
*/
#ifdef HAL_FLASH_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/** @addtogroup FLASHEx_Private_Constants
* @{
*/
#define SECTOR_MASK ((uint32_t)0xFFFFFF07)
#define FLASH_TIMEOUT_VALUE ((uint32_t)50000)/* 50 s */
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/** @addtogroup FLASHEx_Private_Variables
* @{
*/
extern FLASH_ProcessTypeDef pFlash;
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/** @addtogroup FLASHEx_Private_Functions
* @{
*/
/* Option bytes control */
static void FLASH_MassErase(uint8_t VoltageRange, uint32_t Banks);
static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WRPSector, uint32_t Banks);
static HAL_StatusTypeDef FLASH_OB_DisableWRP(uint32_t WRPSector, uint32_t Banks);
static HAL_StatusTypeDef FLASH_OB_RDP_LevelConfig(uint8_t Level);
static HAL_StatusTypeDef FLASH_OB_UserConfig(uint8_t Iwdg, uint8_t Stop, uint8_t Stdby);
static HAL_StatusTypeDef FLASH_OB_BOR_LevelConfig(uint8_t Level);
static uint8_t FLASH_OB_GetUser(void);
static uint16_t FLASH_OB_GetWRP(void);
static uint8_t FLASH_OB_GetRDP(void);
static uint8_t FLASH_OB_GetBOR(void);
#if defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx)
static HAL_StatusTypeDef FLASH_OB_EnablePCROP(uint32_t Sector);
static HAL_StatusTypeDef FLASH_OB_DisablePCROP(uint32_t Sector);
#endif /* STM32F401xC || STM32F401xE || STM32F411xE || STM32F446xx */
#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx)|| defined(STM32F439xx)
static HAL_StatusTypeDef FLASH_OB_EnablePCROP(uint32_t SectorBank1, uint32_t SectorBank2, uint32_t Banks);
static HAL_StatusTypeDef FLASH_OB_DisablePCROP(uint32_t SectorBank1, uint32_t SectorBank2, uint32_t Banks);
static HAL_StatusTypeDef FLASH_OB_BootConfig(uint8_t BootConfig);
#endif /* STM32F427xx || STM32F437xx || STM32F429xx|| STM32F439xx */
extern HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout);
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup FLASHEx_Exported_Functions FLASHEx Exported Functions
* @{
*/
/** @defgroup FLASHEx_Exported_Functions_Group1 Extended IO operation functions
* @brief Extended IO operation functions
*
@verbatim
===============================================================================
##### Extended programming operation functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to manage the Extension FLASH
programming operations Operations.
@endverbatim
* @{
*/
/**
* @brief Perform a mass erase or erase the specified FLASH memory sectors
* @param[in] pEraseInit: pointer to an FLASH_EraseInitTypeDef structure that
* contains the configuration information for the erasing.
*
* @param[out] SectorError: pointer to variable that
* contains the configuration information on faulty sector in case of error
* (0xFFFFFFFF means that all the sectors have been correctly erased)
*
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASHEx_Erase(FLASH_EraseInitTypeDef *pEraseInit, uint32_t *SectorError)
{
HAL_StatusTypeDef status = HAL_ERROR;
uint32_t index = 0;
/* Process Locked */
__HAL_LOCK(&pFlash);
/* Check the parameters */
assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
/*Initialization of SectorError variable*/
*SectorError = 0xFFFFFFFF;
if(pEraseInit->TypeErase == FLASH_TYPEERASE_MASSERASE)
{
/*Mass erase to be done*/
FLASH_MassErase((uint8_t) pEraseInit->VoltageRange, pEraseInit->Banks);
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
/* if the erase operation is completed, disable the MER Bit */
FLASH->CR &= (~FLASH_MER_BIT);
}
else
{
/* Check the parameters */
assert_param(IS_FLASH_NBSECTORS(pEraseInit->NbSectors + pEraseInit->Sector));
/* Erase by sector by sector to be done*/
for(index = pEraseInit->Sector; index < (pEraseInit->NbSectors + pEraseInit->Sector); index++)
{
FLASH_Erase_Sector(index, (uint8_t) pEraseInit->VoltageRange);
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
/* If the erase operation is completed, disable the SER Bit */
FLASH->CR &= (~FLASH_CR_SER);
FLASH->CR &= SECTOR_MASK;
if(status != HAL_OK)
{
/* In case of error, stop erase procedure and return the faulty sector*/
*SectorError = index;
break;
}
}
}
}
/* Process Unlocked */
__HAL_UNLOCK(&pFlash);
return status;
}
/**
* @brief Perform a mass erase or erase the specified FLASH memory sectors with interrupt enabled
* @param pEraseInit: pointer to an FLASH_EraseInitTypeDef structure that
* contains the configuration information for the erasing.
*
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASHEx_Erase_IT(FLASH_EraseInitTypeDef *pEraseInit)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process Locked */
__HAL_LOCK(&pFlash);
/* Check the parameters */
assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase));
/* Enable End of FLASH Operation interrupt */
__HAL_FLASH_ENABLE_IT(FLASH_IT_EOP);
/* Enable Error source interrupt */
__HAL_FLASH_ENABLE_IT(FLASH_IT_ERR);
/* Clear pending flags (if any) */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |\
FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR| FLASH_FLAG_PGSERR);
if(pEraseInit->TypeErase == FLASH_TYPEERASE_MASSERASE)
{
/*Mass erase to be done*/
pFlash.ProcedureOnGoing = FLASH_PROC_MASSERASE;
pFlash.Bank = pEraseInit->Banks;
FLASH_MassErase((uint8_t) pEraseInit->VoltageRange, pEraseInit->Banks);
}
else
{
/* Erase by sector to be done*/
/* Check the parameters */
assert_param(IS_FLASH_NBSECTORS(pEraseInit->NbSectors + pEraseInit->Sector));
pFlash.ProcedureOnGoing = FLASH_PROC_SECTERASE;
pFlash.NbSectorsToErase = pEraseInit->NbSectors;
pFlash.Sector = pEraseInit->Sector;
pFlash.VoltageForErase = (uint8_t)pEraseInit->VoltageRange;
/*Erase 1st sector and wait for IT*/
FLASH_Erase_Sector(pEraseInit->Sector, pEraseInit->VoltageRange);
}
return status;
}
/**
* @brief Program option bytes
* @param pOBInit: pointer to an FLASH_OBInitStruct structure that
* contains the configuration information for the programming.
*
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit)
{
HAL_StatusTypeDef status = HAL_ERROR;
/* Process Locked */
__HAL_LOCK(&pFlash);
/* Check the parameters */
assert_param(IS_OPTIONBYTE(pOBInit->OptionType));
/*Write protection configuration*/
if((pOBInit->OptionType & OPTIONBYTE_WRP) == OPTIONBYTE_WRP)
{
assert_param(IS_WRPSTATE(pOBInit->WRPState));
if(pOBInit->WRPState == OB_WRPSTATE_ENABLE)
{
/*Enable of Write protection on the selected Sector*/
status = FLASH_OB_EnableWRP(pOBInit->WRPSector, pOBInit->Banks);
}
else
{
/*Disable of Write protection on the selected Sector*/
status = FLASH_OB_DisableWRP(pOBInit->WRPSector, pOBInit->Banks);
}
}
/*Read protection configuration*/
if((pOBInit->OptionType & OPTIONBYTE_RDP) == OPTIONBYTE_RDP)
{
status = FLASH_OB_RDP_LevelConfig(pOBInit->RDPLevel);
}
/*USER configuration*/
if((pOBInit->OptionType & OPTIONBYTE_USER) == OPTIONBYTE_USER)
{
status = FLASH_OB_UserConfig(pOBInit->USERConfig&OB_IWDG_SW,
pOBInit->USERConfig&OB_STOP_NO_RST,
pOBInit->USERConfig&OB_STDBY_NO_RST);
}
/*BOR Level configuration*/
if((pOBInit->OptionType & OPTIONBYTE_BOR) == OPTIONBYTE_BOR)
{
status = FLASH_OB_BOR_LevelConfig(pOBInit->BORLevel);
}
/* Process Unlocked */
__HAL_UNLOCK(&pFlash);
return status;
}
/**
* @brief Get the Option byte configuration
* @param pOBInit: pointer to an FLASH_OBInitStruct structure that
* contains the configuration information for the programming.
*
* @retval None
*/
void HAL_FLASHEx_OBGetConfig(FLASH_OBProgramInitTypeDef *pOBInit)
{
pOBInit->OptionType = OPTIONBYTE_WRP | OPTIONBYTE_RDP | OPTIONBYTE_USER | OPTIONBYTE_BOR;
/*Get WRP*/
pOBInit->WRPSector = (uint32_t)FLASH_OB_GetWRP();
/*Get RDP Level*/
pOBInit->RDPLevel = (uint32_t)FLASH_OB_GetRDP();
/*Get USER*/
pOBInit->USERConfig = (uint8_t)FLASH_OB_GetUser();
/*Get BOR Level*/
pOBInit->BORLevel = (uint32_t)FLASH_OB_GetBOR();
}
#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx)|| defined(STM32F439xx) ||\
defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx)
/**
* @brief Program option bytes
* @param pAdvOBInit: pointer to an FLASH_AdvOBProgramInitTypeDef structure that
* contains the configuration information for the programming.
*
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASHEx_AdvOBProgram (FLASH_AdvOBProgramInitTypeDef *pAdvOBInit)
{
HAL_StatusTypeDef status = HAL_ERROR;
/* Check the parameters */
assert_param(IS_OBEX(pAdvOBInit->OptionType));
/*Program PCROP option byte*/
if(((pAdvOBInit->OptionType) & OPTIONBYTE_PCROP) == OPTIONBYTE_PCROP)
{
/* Check the parameters */
assert_param(IS_PCROPSTATE(pAdvOBInit->PCROPState));
if((pAdvOBInit->PCROPState) == OB_PCROP_STATE_ENABLE)
{
/*Enable of Write protection on the selected Sector*/
#if defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx)
status = FLASH_OB_EnablePCROP(pAdvOBInit->Sectors);
#else /* STM32F427xx || STM32F437xx || STM32F429xx|| STM32F439xx */
status = FLASH_OB_EnablePCROP(pAdvOBInit->SectorsBank1, pAdvOBInit->SectorsBank2, pAdvOBInit->Banks);
#endif /* STM32F401xC || STM32F401xE || STM32F411xE || STM32F446xx */
}
else
{
/*Disable of Write protection on the selected Sector*/
#if defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx)
status = FLASH_OB_DisablePCROP(pAdvOBInit->Sectors);
#else /* STM32F427xx || STM32F437xx || STM32F429xx|| STM32F439xx */
status = FLASH_OB_DisablePCROP(pAdvOBInit->SectorsBank1, pAdvOBInit->SectorsBank2, pAdvOBInit->Banks);
#endif /* STM32F401xC || STM32F401xE || STM32F411xE || STM32F446xx */
}
}
#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx)|| defined(STM32F439xx)
/*Program BOOT config option byte*/
if(((pAdvOBInit->OptionType) & OPTIONBYTE_BOOTCONFIG) == OPTIONBYTE_BOOTCONFIG)
{
status = FLASH_OB_BootConfig(pAdvOBInit->BootConfig);
}
#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
return status;
}
/**
* @brief Get the OBEX byte configuration
* @param pAdvOBInit: pointer to an FLASH_AdvOBProgramInitTypeDef structure that
* contains the configuration information for the programming.
*
* @retval None
*/
void HAL_FLASHEx_AdvOBGetConfig(FLASH_AdvOBProgramInitTypeDef *pAdvOBInit)
{
#if defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx)
/*Get Sector*/
pAdvOBInit->Sectors = (*(__IO uint16_t *)(OPTCR_BYTE2_ADDRESS));
#else /* STM32F427xx || STM32F437xx || STM32F429xx|| STM32F439xx */
/*Get Sector for Bank1*/
pAdvOBInit->SectorsBank1 = (*(__IO uint16_t *)(OPTCR_BYTE2_ADDRESS));
/*Get Sector for Bank2*/
pAdvOBInit->SectorsBank2 = (*(__IO uint16_t *)(OPTCR1_BYTE2_ADDRESS));
/*Get Boot config OB*/
pAdvOBInit->BootConfig = *(__IO uint8_t *)OPTCR_BYTE0_ADDRESS;
#endif /* STM32F401xC || STM32F401xE || STM32F411xE || STM32F446xx */
}
/**
* @brief Select the Protection Mode
*
* @note After PCROP activated Option Byte modification NOT POSSIBLE! excepted
* Global Read Out Protection modification (from level1 to level0)
* @note Once SPRMOD bit is active unprotection of a protected sector is not possible
* @note Read a protected sector will set RDERR Flag and write a protected sector will set WRPERR Flag
* @note This function can be used only for STM32F42xxx/STM32F43xxx/STM32F401xx/STM32F411xx/STM32F446xx devices.
*
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASHEx_OB_SelectPCROP(void)
{
uint8_t optiontmp = 0xFF;
/* Mask SPRMOD bit */
optiontmp = (uint8_t)((*(__IO uint8_t *)OPTCR_BYTE3_ADDRESS) & (uint8_t)0x7F);
/* Update Option Byte */
*(__IO uint8_t *)OPTCR_BYTE3_ADDRESS = (uint8_t)(OB_PCROP_SELECTED | optiontmp);
return HAL_OK;
}
/**
* @brief Deselect the Protection Mode
*
* @note After PCROP activated Option Byte modification NOT POSSIBLE! excepted
* Global Read Out Protection modification (from level1 to level0)
* @note Once SPRMOD bit is active unprotection of a protected sector is not possible
* @note Read a protected sector will set RDERR Flag and write a protected sector will set WRPERR Flag
* @note This function can be used only for STM32F42xxx/STM32F43xxx/STM32F401xx/STM32F411xx/STM32F446xx devices.
*
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASHEx_OB_DeSelectPCROP(void)
{
uint8_t optiontmp = 0xFF;
/* Mask SPRMOD bit */
optiontmp = (uint8_t)((*(__IO uint8_t *)OPTCR_BYTE3_ADDRESS) & (uint8_t)0x7F);
/* Update Option Byte */
*(__IO uint8_t *)OPTCR_BYTE3_ADDRESS = (uint8_t)(OB_PCROP_DESELECTED | optiontmp);
return HAL_OK;
}
#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F401xC || STM32F401xE || STM32F411xE */
#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx)|| defined(STM32F439xx)
/**
* @brief Returns the FLASH Write Protection Option Bytes value for Bank 2
* @note This function can be used only for STM32F427X and STM32F429X devices.
* @retval The FLASH Write Protection Option Bytes value
*/
uint16_t HAL_FLASHEx_OB_GetBank2WRP(void)
{
/* Return the FLASH write protection Register value */
return (*(__IO uint16_t *)(OPTCR1_BYTE2_ADDRESS));
}
#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
/**
* @}
*/
#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx)|| defined(STM32F439xx)
/**
* @brief Full erase of FLASH memory sectors
* @param VoltageRange: The device voltage range which defines the erase parallelism.
* This parameter can be one of the following values:
* @arg FLASH_VOLTAGE_RANGE_1: when the device voltage range is 1.8V to 2.1V,
* the operation will be done by byte (8-bit)
* @arg FLASH_VOLTAGE_RANGE_2: when the device voltage range is 2.1V to 2.7V,
* the operation will be done by half word (16-bit)
* @arg FLASH_VOLTAGE_RANGE_3: when the device voltage range is 2.7V to 3.6V,
* the operation will be done by word (32-bit)
* @arg FLASH_VOLTAGE_RANGE_4: when the device voltage range is 2.7V to 3.6V + External Vpp,
* the operation will be done by double word (64-bit)
*
* @param Banks: Banks to be erased
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: Bank1 to be erased
* @arg FLASH_BANK_2: Bank2 to be erased
* @arg FLASH_BANK_BOTH: Bank1 and Bank2 to be erased
*
* @retval HAL Status
*/
static void FLASH_MassErase(uint8_t VoltageRange, uint32_t Banks)
{
uint32_t tmp_psize = 0;
/* Check the parameters */
assert_param(IS_VOLTAGERANGE(VoltageRange));
assert_param(IS_FLASH_BANK(Banks));
/* if the previous operation is completed, proceed to erase all sectors */
FLASH->CR &= CR_PSIZE_MASK;
FLASH->CR |= tmp_psize;
if(Banks == FLASH_BANK_BOTH)
{
/* bank1 & bank2 will be erased*/
FLASH->CR |= FLASH_MER_BIT;
}
else if(Banks == FLASH_BANK_1)
{
/*Only bank1 will be erased*/
FLASH->CR |= FLASH_CR_MER1;
}
else
{
/*Only bank2 will be erased*/
FLASH->CR |= FLASH_CR_MER2;
}
FLASH->CR |= FLASH_CR_STRT;
}
/**
* @brief Erase the specified FLASH memory sector
* @param Sector: FLASH sector to erase
* The value of this parameter depend on device used within the same series
* @param VoltageRange: The device voltage range which defines the erase parallelism.
* This parameter can be one of the following values:
* @arg FLASH_VOLTAGE_RANGE_1: when the device voltage range is 1.8V to 2.1V,
* the operation will be done by byte (8-bit)
* @arg FLASH_VOLTAGE_RANGE_2: when the device voltage range is 2.1V to 2.7V,
* the operation will be done by half word (16-bit)
* @arg FLASH_VOLTAGE_RANGE_3: when the device voltage range is 2.7V to 3.6V,
* the operation will be done by word (32-bit)
* @arg FLASH_VOLTAGE_RANGE_4: when the device voltage range is 2.7V to 3.6V + External Vpp,
* the operation will be done by double word (64-bit)
*
* @retval None
*/
void FLASH_Erase_Sector(uint32_t Sector, uint8_t VoltageRange)
{
uint32_t tmp_psize = 0;
/* Check the parameters */
assert_param(IS_FLASH_SECTOR(Sector));
assert_param(IS_VOLTAGERANGE(VoltageRange));
if(VoltageRange == FLASH_VOLTAGE_RANGE_1)
{
tmp_psize = FLASH_PSIZE_BYTE;
}
else if(VoltageRange == FLASH_VOLTAGE_RANGE_2)
{
tmp_psize = FLASH_PSIZE_HALF_WORD;
}
else if(VoltageRange == FLASH_VOLTAGE_RANGE_3)
{
tmp_psize = FLASH_PSIZE_WORD;
}
else
{
tmp_psize = FLASH_PSIZE_DOUBLE_WORD;
}
/* Need to add offset of 4 when sector higher than FLASH_SECTOR_11 */
if(Sector > FLASH_SECTOR_11)
{
Sector += 4;
}
/* If the previous operation is completed, proceed to erase the sector */
FLASH->CR &= CR_PSIZE_MASK;
FLASH->CR |= tmp_psize;
FLASH->CR &= SECTOR_MASK;
FLASH->CR |= FLASH_CR_SER | (Sector << POSITION_VAL(FLASH_CR_SNB));
FLASH->CR |= FLASH_CR_STRT;
}
/**
* @brief Enable the write protection of the desired bank1 or bank 2 sectors
*
* @note When the memory read protection level is selected (RDP level = 1),
* it is not possible to program or erase the flash sector i if CortexM4
* debug features are connected or boot code is executed in RAM, even if nWRPi = 1
* @note Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).
*
* @param WRPSector: specifies the sector(s) to be write protected.
* This parameter can be one of the following values:
* @arg WRPSector: A value between OB_WRP_SECTOR_0 and OB_WRP_SECTOR_23
* @arg OB_WRP_SECTOR_All
* @note BANK2 starts from OB_WRP_SECTOR_12
*
* @param Banks: Enable write protection on all the sectors for the specific bank
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: WRP on all sectors of bank1
* @arg FLASH_BANK_2: WRP on all sectors of bank2
* @arg FLASH_BANK_BOTH: WRP on all sectors of bank1 & bank2
*
* @retval HAL FLASH State
*/
static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WRPSector, uint32_t Banks)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_WRP_SECTOR(WRPSector));
assert_param(IS_FLASH_BANK(Banks));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
if(((WRPSector == OB_WRP_SECTOR_All) && ((Banks == FLASH_BANK_1) || (Banks == FLASH_BANK_BOTH))) ||
(WRPSector < OB_WRP_SECTOR_12))
{
if(WRPSector == OB_WRP_SECTOR_All)
{
/*Write protection on all sector of BANK1*/
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS &= (~(WRPSector>>12));
}
else
{
/*Write protection done on sectors of BANK1*/
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS &= (~WRPSector);
}
}
else
{
/*Write protection done on sectors of BANK2*/
*(__IO uint16_t*)OPTCR1_BYTE2_ADDRESS &= (~(WRPSector>>12));
}
/*Write protection on all sector of BANK2*/
if((WRPSector == OB_WRP_SECTOR_All) && (Banks == FLASH_BANK_BOTH))
{
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
*(__IO uint16_t*)OPTCR1_BYTE2_ADDRESS &= (~(WRPSector>>12));
}
}
}
return status;
}
/**
* @brief Disable the write protection of the desired bank1 or bank 2 sectors
*
* @note When the memory read protection level is selected (RDP level = 1),
* it is not possible to program or erase the flash sector i if CortexM4
* debug features are connected or boot code is executed in RAM, even if nWRPi = 1
* @note Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).
*
* @param WRPSector: specifies the sector(s) to be write protected.
* This parameter can be one of the following values:
* @arg WRPSector: A value between OB_WRP_SECTOR_0 and OB_WRP_SECTOR_23
* @arg OB_WRP_Sector_All
* @note BANK2 starts from OB_WRP_SECTOR_12
*
* @param Banks: Disable write protection on all the sectors for the specific bank
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: Bank1 to be erased
* @arg FLASH_BANK_2: Bank2 to be erased
* @arg FLASH_BANK_BOTH: Bank1 and Bank2 to be erased
*
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_DisableWRP(uint32_t WRPSector, uint32_t Banks)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_WRP_SECTOR(WRPSector));
assert_param(IS_FLASH_BANK(Banks));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
if(((WRPSector == OB_WRP_SECTOR_All) && ((Banks == FLASH_BANK_1) || (Banks == FLASH_BANK_BOTH))) ||
(WRPSector < OB_WRP_SECTOR_12))
{
if(WRPSector == OB_WRP_SECTOR_All)
{
/*Write protection on all sector of BANK1*/
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS |= (uint16_t)(WRPSector>>12);
}
else
{
/*Write protection done on sectors of BANK1*/
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS |= (uint16_t)WRPSector;
}
}
else
{
/*Write protection done on sectors of BANK2*/
*(__IO uint16_t*)OPTCR1_BYTE2_ADDRESS |= (uint16_t)(WRPSector>>12);
}
/*Write protection on all sector of BANK2*/
if((WRPSector == OB_WRP_SECTOR_All) && (Banks == FLASH_BANK_BOTH))
{
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
*(__IO uint16_t*)OPTCR1_BYTE2_ADDRESS |= (uint16_t)(WRPSector>>12);
}
}
}
return status;
}
/**
* @brief Configure the Dual Bank Boot.
*
* @note This function can be used only for STM32F42xxx/43xxx devices.
*
* @param BootConfig specifies the Dual Bank Boot Option byte.
* This parameter can be one of the following values:
* @arg OB_Dual_BootEnabled: Dual Bank Boot Enable
* @arg OB_Dual_BootDisabled: Dual Bank Boot Disabled
* @retval None
*/
static HAL_StatusTypeDef FLASH_OB_BootConfig(uint8_t BootConfig)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_BOOT(BootConfig));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
/* Set Dual Bank Boot */
*(__IO uint8_t *)OPTCR_BYTE0_ADDRESS &= (~FLASH_OPTCR_BFB2);
*(__IO uint8_t *)OPTCR_BYTE0_ADDRESS |= BootConfig;
}
return status;
}
/**
* @brief Enable the read/write protection (PCROP) of the desired
* sectors of Bank 1 and/or Bank 2.
* @note This function can be used only for STM32F42xxx/43xxx devices.
* @param SectorBank1 Specifies the sector(s) to be read/write protected or unprotected for bank1.
* This parameter can be one of the following values:
* @arg OB_PCROP: A value between OB_PCROP_SECTOR_0 and OB_PCROP_SECTOR_11
* @arg OB_PCROP_SECTOR__All
* @param SectorBank2 Specifies the sector(s) to be read/write protected or unprotected for bank2.
* This parameter can be one of the following values:
* @arg OB_PCROP: A value between OB_PCROP_SECTOR_12 and OB_PCROP_SECTOR_23
* @arg OB_PCROP_SECTOR__All
* @param Banks Enable PCROP protection on all the sectors for the specific bank
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: WRP on all sectors of bank1
* @arg FLASH_BANK_2: WRP on all sectors of bank2
* @arg FLASH_BANK_BOTH: WRP on all sectors of bank1 & bank2
*
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_EnablePCROP(uint32_t SectorBank1, uint32_t SectorBank2, uint32_t Banks)
{
HAL_StatusTypeDef status = HAL_OK;
assert_param(IS_FLASH_BANK(Banks));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
if((Banks == FLASH_BANK_1) || (Banks == FLASH_BANK_BOTH))
{
assert_param(IS_OB_PCROP(SectorBank1));
/*Write protection done on sectors of BANK1*/
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS |= (uint16_t)SectorBank1;
}
else
{
assert_param(IS_OB_PCROP(SectorBank2));
/*Write protection done on sectors of BANK2*/
*(__IO uint16_t*)OPTCR1_BYTE2_ADDRESS |= (uint16_t)SectorBank2;
}
/*Write protection on all sector of BANK2*/
if(Banks == FLASH_BANK_BOTH)
{
assert_param(IS_OB_PCROP(SectorBank2));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
/*Write protection done on sectors of BANK2*/
*(__IO uint16_t*)OPTCR1_BYTE2_ADDRESS |= (uint16_t)SectorBank2;
}
}
}
return status;
}
/**
* @brief Disable the read/write protection (PCROP) of the desired
* sectors of Bank 1 and/or Bank 2.
* @note This function can be used only for STM32F42xxx/43xxx devices.
* @param SectorBank1 specifies the sector(s) to be read/write protected or unprotected for bank1.
* This parameter can be one of the following values:
* @arg OB_PCROP: A value between OB_PCROP_SECTOR_0 and OB_PCROP_SECTOR_11
* @arg OB_PCROP_SECTOR__All
* @param SectorBank2 Specifies the sector(s) to be read/write protected or unprotected for bank2.
* This parameter can be one of the following values:
* @arg OB_PCROP: A value between OB_PCROP_SECTOR_12 and OB_PCROP_SECTOR_23
* @arg OB_PCROP_SECTOR__All
* @param Banks Disable PCROP protection on all the sectors for the specific bank
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: WRP on all sectors of bank1
* @arg FLASH_BANK_2: WRP on all sectors of bank2
* @arg FLASH_BANK_BOTH: WRP on all sectors of bank1 & bank2
*
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_DisablePCROP(uint32_t SectorBank1, uint32_t SectorBank2, uint32_t Banks)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_FLASH_BANK(Banks));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
if((Banks == FLASH_BANK_1) || (Banks == FLASH_BANK_BOTH))
{
assert_param(IS_OB_PCROP(SectorBank1));
/*Write protection done on sectors of BANK1*/
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS &= (~SectorBank1);
}
else
{
/*Write protection done on sectors of BANK2*/
assert_param(IS_OB_PCROP(SectorBank2));
*(__IO uint16_t*)OPTCR1_BYTE2_ADDRESS &= (~SectorBank2);
}
/*Write protection on all sector of BANK2*/
if(Banks == FLASH_BANK_BOTH)
{
assert_param(IS_OB_PCROP(SectorBank2));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
/*Write protection done on sectors of BANK2*/
*(__IO uint16_t*)OPTCR1_BYTE2_ADDRESS &= (~SectorBank2);
}
}
}
return status;
}
#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
#if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx)|| defined(STM32F417xx) ||\
defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx)
/**
* @brief Mass erase of FLASH memory
* @param VoltageRange: The device voltage range which defines the erase parallelism.
* This parameter can be one of the following values:
* @arg FLASH_VOLTAGE_RANGE_1: when the device voltage range is 1.8V to 2.1V,
* the operation will be done by byte (8-bit)
* @arg FLASH_VOLTAGE_RANGE_2: when the device voltage range is 2.1V to 2.7V,
* the operation will be done by half word (16-bit)
* @arg FLASH_VOLTAGE_RANGE_3: when the device voltage range is 2.7V to 3.6V,
* the operation will be done by word (32-bit)
* @arg FLASH_VOLTAGE_RANGE_4: when the device voltage range is 2.7V to 3.6V + External Vpp,
* the operation will be done by double word (64-bit)
*
* @param Banks: Banks to be erased
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: Bank1 to be erased
*
* @retval None
*/
static void FLASH_MassErase(uint8_t VoltageRange, uint32_t Banks)
{
uint32_t tmp_psize = 0;
/* Check the parameters */
assert_param(IS_VOLTAGERANGE(VoltageRange));
assert_param(IS_FLASH_BANK(Banks));
/* If the previous operation is completed, proceed to erase all sectors */
FLASH->CR &= CR_PSIZE_MASK;
FLASH->CR |= tmp_psize;
FLASH->CR |= FLASH_CR_MER;
FLASH->CR |= FLASH_CR_STRT;
}
/**
* @brief Erase the specified FLASH memory sector
* @param Sector: FLASH sector to erase
* The value of this parameter depend on device used within the same series
* @param VoltageRange: The device voltage range which defines the erase parallelism.
* This parameter can be one of the following values:
* @arg FLASH_VOLTAGE_RANGE_1: when the device voltage range is 1.8V to 2.1V,
* the operation will be done by byte (8-bit)
* @arg FLASH_VOLTAGE_RANGE_2: when the device voltage range is 2.1V to 2.7V,
* the operation will be done by half word (16-bit)
* @arg FLASH_VOLTAGE_RANGE_3: when the device voltage range is 2.7V to 3.6V,
* the operation will be done by word (32-bit)
* @arg FLASH_VOLTAGE_RANGE_4: when the device voltage range is 2.7V to 3.6V + External Vpp,
* the operation will be done by double word (64-bit)
*
* @retval None
*/
void FLASH_Erase_Sector(uint32_t Sector, uint8_t VoltageRange)
{
uint32_t tmp_psize = 0;
/* Check the parameters */
assert_param(IS_FLASH_SECTOR(Sector));
assert_param(IS_VOLTAGERANGE(VoltageRange));
if(VoltageRange == FLASH_VOLTAGE_RANGE_1)
{
tmp_psize = FLASH_PSIZE_BYTE;
}
else if(VoltageRange == FLASH_VOLTAGE_RANGE_2)
{
tmp_psize = FLASH_PSIZE_HALF_WORD;
}
else if(VoltageRange == FLASH_VOLTAGE_RANGE_3)
{
tmp_psize = FLASH_PSIZE_WORD;
}
else
{
tmp_psize = FLASH_PSIZE_DOUBLE_WORD;
}
/* If the previous operation is completed, proceed to erase the sector */
FLASH->CR &= CR_PSIZE_MASK;
FLASH->CR |= tmp_psize;
FLASH->CR &= SECTOR_MASK;
FLASH->CR |= FLASH_CR_SER | (Sector << POSITION_VAL(FLASH_CR_SNB));
FLASH->CR |= FLASH_CR_STRT;
}
/**
* @brief Enable the write protection of the desired bank 1 sectors
*
* @note When the memory read protection level is selected (RDP level = 1),
* it is not possible to program or erase the flash sector i if CortexM4
* debug features are connected or boot code is executed in RAM, even if nWRPi = 1
* @note Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).
*
* @param WRPSector: specifies the sector(s) to be write protected.
* The value of this parameter depend on device used within the same series
*
* @param Banks: Enable write protection on all the sectors for the specific bank
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: WRP on all sectors of bank1
*
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WRPSector, uint32_t Banks)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_WRP_SECTOR(WRPSector));
assert_param(IS_FLASH_BANK(Banks));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS &= (~WRPSector);
}
return status;
}
/**
* @brief Disable the write protection of the desired bank 1 sectors
*
* @note When the memory read protection level is selected (RDP level = 1),
* it is not possible to program or erase the flash sector i if CortexM4
* debug features are connected or boot code is executed in RAM, even if nWRPi = 1
* @note Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).
*
* @param WRPSector: specifies the sector(s) to be write protected.
* The value of this parameter depend on device used within the same series
*
* @param Banks: Enable write protection on all the sectors for the specific bank
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: WRP on all sectors of bank1
*
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_DisableWRP(uint32_t WRPSector, uint32_t Banks)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_WRP_SECTOR(WRPSector));
assert_param(IS_FLASH_BANK(Banks));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS |= (uint16_t)WRPSector;
}
return status;
}
#endif /* STM32F40xxx || STM32F41xxx || STM32F401xx || STM32F411xE || STM32F446xx */
#if defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx)
/**
* @brief Enable the read/write protection (PCROP) of the desired sectors.
* @note This function can be used only for STM32F401xx devices.
* @param Sector specifies the sector(s) to be read/write protected or unprotected.
* This parameter can be one of the following values:
* @arg OB_PCROP: A value between OB_PCROP_Sector0 and OB_PCROP_Sector5
* @arg OB_PCROP_Sector_All
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_EnablePCROP(uint32_t Sector)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_PCROP(Sector));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS |= (uint16_t)Sector;
}
return status;
}
/**
* @brief Disable the read/write protection (PCROP) of the desired sectors.
* @note This function can be used only for STM32F401xx devices.
* @param Sector specifies the sector(s) to be read/write protected or unprotected.
* This parameter can be one of the following values:
* @arg OB_PCROP: A value between OB_PCROP_Sector0 and OB_PCROP_Sector5
* @arg OB_PCROP_Sector_All
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_DisablePCROP(uint32_t Sector)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_PCROP(Sector));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS &= (~Sector);
}
return status;
}
#endif /* STM32F401xC || STM32F401xE || STM32F411xE || STM32F446xx */
/**
* @brief Set the read protection level.
* @param Level: specifies the read protection level.
* This parameter can be one of the following values:
* @arg OB_RDP_LEVEL_0: No protection
* @arg OB_RDP_LEVEL_1: Read protection of the memory
* @arg OB_RDP_LEVEL_2: Full chip protection
*
* @note WARNING: When enabling OB_RDP level 2 it's no more possible to go back to level 1 or 0
*
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_RDP_LevelConfig(uint8_t Level)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_RDP_LEVEL(Level));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
*(__IO uint8_t*)OPTCR_BYTE1_ADDRESS = Level;
}
return status;
}
/**
* @brief Program the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY.
* @param Iwdg: Selects the IWDG mode
* This parameter can be one of the following values:
* @arg OB_IWDG_SW: Software IWDG selected
* @arg OB_IWDG_HW: Hardware IWDG selected
* @param Stop: Reset event when entering STOP mode.
* This parameter can be one of the following values:
* @arg OB_STOP_NO_RST: No reset generated when entering in STOP
* @arg OB_STOP_RST: Reset generated when entering in STOP
* @param Stdby: Reset event when entering Standby mode.
* This parameter can be one of the following values:
* @arg OB_STDBY_NO_RST: No reset generated when entering in STANDBY
* @arg OB_STDBY_RST: Reset generated when entering in STANDBY
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_UserConfig(uint8_t Iwdg, uint8_t Stop, uint8_t Stdby)
{
uint8_t optiontmp = 0xFF;
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_IWDG_SOURCE(Iwdg));
assert_param(IS_OB_STOP_SOURCE(Stop));
assert_param(IS_OB_STDBY_SOURCE(Stdby));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
/* Mask OPTLOCK, OPTSTRT, BOR_LEV and BFB2 bits */
optiontmp = (uint8_t)((*(__IO uint8_t *)OPTCR_BYTE0_ADDRESS) & (uint8_t)0x1F);
/* Update User Option Byte */
*(__IO uint8_t *)OPTCR_BYTE0_ADDRESS = Iwdg | (uint8_t)(Stdby | (uint8_t)(Stop | ((uint8_t)optiontmp)));
}
return status;
}
/**
* @brief Set the BOR Level.
* @param Level: specifies the Option Bytes BOR Reset Level.
* This parameter can be one of the following values:
* @arg OB_BOR_LEVEL3: Supply voltage ranges from 2.7 to 3.6 V
* @arg OB_BOR_LEVEL2: Supply voltage ranges from 2.4 to 2.7 V
* @arg OB_BOR_LEVEL1: Supply voltage ranges from 2.1 to 2.4 V
* @arg OB_BOR_OFF: Supply voltage ranges from 1.62 to 2.1 V
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_BOR_LevelConfig(uint8_t Level)
{
/* Check the parameters */
assert_param(IS_OB_BOR_LEVEL(Level));
/* Set the BOR Level */
*(__IO uint8_t *)OPTCR_BYTE0_ADDRESS &= (~FLASH_OPTCR_BOR_LEV);
*(__IO uint8_t *)OPTCR_BYTE0_ADDRESS |= Level;
return HAL_OK;
}
/**
* @brief Return the FLASH User Option Byte value.
* @retval uint8_t FLASH User Option Bytes values: IWDG_SW(Bit0), RST_STOP(Bit1)
* and RST_STDBY(Bit2).
*/
static uint8_t FLASH_OB_GetUser(void)
{
/* Return the User Option Byte */
return ((uint8_t)(FLASH->OPTCR & 0xE0));
}
/**
* @brief Return the FLASH Write Protection Option Bytes value.
* @retval uint16_t FLASH Write Protection Option Bytes value
*/
static uint16_t FLASH_OB_GetWRP(void)
{
/* Return the FLASH write protection Register value */
return (*(__IO uint16_t *)(OPTCR_BYTE2_ADDRESS));
}
/**
* @brief Returns the FLASH Read Protection level.
* @retval FLASH ReadOut Protection Status:
* This parameter can be one of the following values:
* @arg OB_RDP_LEVEL_0: No protection
* @arg OB_RDP_LEVEL_1: Read protection of the memory
* @arg OB_RDP_LEVEL_2: Full chip protection
*/
static uint8_t FLASH_OB_GetRDP(void)
{
uint8_t readstatus = OB_RDP_LEVEL_0;
if((*(__IO uint8_t*)(OPTCR_BYTE1_ADDRESS) == (uint8_t)OB_RDP_LEVEL_2))
{
readstatus = OB_RDP_LEVEL_2;
}
else if((*(__IO uint8_t*)(OPTCR_BYTE1_ADDRESS) == (uint8_t)OB_RDP_LEVEL_1))
{
readstatus = OB_RDP_LEVEL_1;
}
else
{
readstatus = OB_RDP_LEVEL_0;
}
return readstatus;
}
/**
* @brief Returns the FLASH BOR level.
* @retval uint8_t The FLASH BOR level:
* - OB_BOR_LEVEL3: Supply voltage ranges from 2.7 to 3.6 V
* - OB_BOR_LEVEL2: Supply voltage ranges from 2.4 to 2.7 V
* - OB_BOR_LEVEL1: Supply voltage ranges from 2.1 to 2.4 V
* - OB_BOR_OFF : Supply voltage ranges from 1.62 to 2.1 V
*/
static uint8_t FLASH_OB_GetBOR(void)
{
/* Return the FLASH BOR level */
return (uint8_t)(*(__IO uint8_t *)(OPTCR_BYTE0_ADDRESS) & (uint8_t)0x0C);
}
/**
* @}
*/
#endif /* HAL_FLASH_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
