FLASHEx Exported Functions

Collaboration diagram for FLASHEx Exported Functions:

Modules
	Extended IO operation functions
	Extended IO operation functions.

Functions
void	FLASH_Erase_Sector (uint32_t Sector, uint8_t VoltageRange)
	Erase the specified FLASH memory sector. More...
static void	FLASH_MassErase (uint8_t VoltageRange, uint32_t Banks)
	Full erase of FLASH memory sectors. More...
static uint32_t	FLASH_OB_GetWRP (void)
	Return the FLASH Write Protection Option Bytes value. More...
static uint32_t	FLASH_OB_GetUser (void)
	Return the FLASH User Option Byte value. More...
static HAL_StatusTypeDef	FLASH_OB_RDP_LevelConfig (uint8_t Level)
	Set the read protection level. More...
static HAL_StatusTypeDef	FLASH_OB_BOR_LevelConfig (uint8_t Level)
	Set the BOR Level. More...
static uint8_t	FLASH_OB_GetRDP (void)
	Returns the FLASH Read Protection level. More...
static uint32_t	FLASH_OB_GetBOR (void)
	Returns the FLASH BOR level. More...
static HAL_StatusTypeDef	FLASH_OB_EnableWRP (uint32_t WRPSector, uint32_t Banks)
	Enable the write protection of the desired bank1 or bank 2 sectors. More...
static HAL_StatusTypeDef	FLASH_OB_DisableWRP (uint32_t WRPSector, uint32_t Banks)
	Disable the write protection of the desired bank1 or bank 2 sectors. More...
static HAL_StatusTypeDef	FLASH_OB_BootConfig (uint8_t BootConfig)
	Configure the Dual Bank Boot. More...
static HAL_StatusTypeDef	FLASH_OB_EnablePCROP (uint32_t SectorBank1, uint32_t SectorBank2, uint32_t Banks)
	Enable the read/write protection (PCROP) of the desired sectors of Bank 1 and/or Bank 2. More...
static HAL_StatusTypeDef	FLASH_OB_DisablePCROP (uint32_t SectorBank1, uint32_t SectorBank2, uint32_t Banks)
	Disable the read/write protection (PCROP) of the desired sectors of Bank 1 and/or Bank 2. More...
static HAL_StatusTypeDef	FLASH_OB_EnablePCROP (uint32_t Sector)
	Enable the read/write protection (PCROP) of the desired sectors. More...
static HAL_StatusTypeDef	FLASH_OB_DisablePCROP (uint32_t Sector)
	Disable the read/write protection (PCROP) of the desired sectors. More...
static HAL_StatusTypeDef	FLASH_OB_UserConfig (uint8_t Iwdg, uint8_t Stop, uint8_t Stdby)
	Program the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY. More...
static HAL_StatusTypeDef	FLASH_OB_UserConfig (uint32_t Wwdg, uint32_t Iwdg, uint32_t Stop, uint32_t Stdby, uint32_t Iwdgstop, \ uint32_t Iwdgstdby, uint32_t NDBank, uint32_t NDBoot)
	Program the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY. More...
static void	FLASH_MassErase (uint8_t VoltageRange)
	Full erase of FLASH memory sectors. More...
static HAL_StatusTypeDef	FLASH_OB_UserConfig (uint32_t Wwdg, uint32_t Iwdg, uint32_t Stop, uint32_t Stdby, uint32_t Iwdgstop, uint32_t Iwdgstdby)
	Program the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY. More...
static HAL_StatusTypeDef	FLASH_OB_EnableWRP (uint32_t WRPSector)
	Enable the write protection of the desired bank1 or bank2 sectors. More...
static HAL_StatusTypeDef	FLASH_OB_DisableWRP (uint32_t WRPSector)
	Disable the write protection of the desired bank1 or bank 2 sectors. More...
static HAL_StatusTypeDef	FLASH_OB_BootAddressConfig (uint32_t BootOption, uint32_t Address)
	Configure Boot base address. More...
static uint32_t	FLASH_OB_GetBootAddress (uint32_t BootOption)
	Configure Boot base address. More...
static HAL_StatusTypeDef	FLASH_OB_PCROP_Config (uint32_t PCROPSector)
	Set the PCROP protection for sectors. More...
static HAL_StatusTypeDef	FLASH_OB_PCROP_RDP_Config (uint32_t Pcrop_Rdp)
	Set the PCROP_RDP value. More...
static uint32_t	FLASH_OB_GetPCROP (void)
	Return the FLASH PCROP Protection Option Bytes value. More...
static uint32_t	FLASH_OB_GetPCROPRDP (void)
	Return the FLASH PCROP_RDP option byte value. More...

Detailed Description

Function Documentation

FLASH_Erase_Sector()

void FLASH_Erase_Sector	(	uint32_t	Sector,
		uint8_t	VoltageRange
	)

Erase the specified FLASH memory sector.

Parameters

Sector

FLASH sector to erase The value of this parameter depend on device used within the same series

VoltageRange

The device voltage range which defines the erase parallelism. This parameter can be one of the following values: FLASH_VOLTAGE_RANGE_1: when the device voltage range is 1.8V to 2.1V, the operation will be done by byte (8-bit) 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) FLASH_VOLTAGE_RANGE_3: when the device voltage range is 2.7V to 3.6V, the operation will be done by word (32-bit) 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)

Return values

None

Definition at line 637 of file stm32f4xx_hal_flash_ex.c.

{
  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 */
  CLEAR_BIT(FLASH->CR, FLASH_CR_PSIZE);
  FLASH->CR |= tmp_psize;
  CLEAR_BIT(FLASH->CR, FLASH_CR_SNB);
  FLASH->CR |= FLASH_CR_SER | (Sector << POSITION_VAL(FLASH_CR_SNB));
  FLASH->CR |= FLASH_CR_STRT;
}

Referenced by HAL_FLASH_IRQHandler(), HAL_FLASHEx_Erase(), and HAL_FLASHEx_Erase_IT().

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FLASH_MassErase() [1/2]

static void FLASH_MassErase ( uint8_t  VoltageRange )

static

Full erase of FLASH memory sectors.

Parameters

VoltageRange

The device voltage range which defines the erase parallelism. This parameter can be one of the following values: VOLTAGE_RANGE_1: when the device voltage range is 1.8V to 2.1V, the operation will be done by byte (8-bit) VOLTAGE_RANGE_2: when the device voltage range is 2.1V to 2.7V, the operation will be done by half word (16-bit) VOLTAGE_RANGE_3: when the device voltage range is 2.7V to 3.6V, the operation will be done by word (32-bit) 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)

Return values

HAL

Status

Definition at line 665 of file stm32f7xx_hal_flash_ex.c.

{
  /* Check the parameters */
  assert_param(IS_VOLTAGERANGE(VoltageRange));
 
  /* if the previous operation is completed, proceed to erase all sectors */
  FLASH->CR &= CR_PSIZE_MASK;
  FLASH->CR |= FLASH_CR_MER;
  FLASH->CR |= FLASH_CR_STRT | ((uint32_t)VoltageRange <<8);
  /* Data synchronous Barrier (DSB) Just after the write operation
     This will force the CPU to respect the sequence of instruction (no optimization).*/
  __DSB();
}

FLASH_MassErase() [2/2]

static void FLASH_MassErase ( uint8_t  VoltageRange, uint32_t  Banks  )

static

Full erase of FLASH memory sectors.

Parameters

VoltageRange

The device voltage range which defines the erase parallelism. This parameter can be one of the following values: VOLTAGE_RANGE_1: when the device voltage range is 1.8V to 2.1V, the operation will be done by byte (8-bit) VOLTAGE_RANGE_2: when the device voltage range is 2.1V to 2.7V, the operation will be done by half word (16-bit) VOLTAGE_RANGE_3: when the device voltage range is 2.7V to 3.6V, the operation will be done by word (32-bit) 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)

Banks

Banks to be erased This parameter can be one of the following values: FLASH_BANK_1: Bank1 to be erased FLASH_BANK_2: Bank2 to be erased FLASH_BANK_BOTH: Bank1 and Bank2 to be erased

Return values

HAL

Status

Definition at line 466 of file stm32f7xx_hal_flash_ex.c.

{
  /* 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;
  if(Banks == FLASH_BANK_BOTH)
  {
    /* bank1 & bank2 will be erased*/
    FLASH->CR |= FLASH_MER_BIT;
  }
  else if(Banks == FLASH_BANK_2)
  {
    /*Only bank2 will be erased*/
    FLASH->CR |= FLASH_CR_MER2;
  }
  else
  {
    /*Only bank1 will be erased*/
    FLASH->CR |= FLASH_CR_MER1;    
  }
  FLASH->CR |= FLASH_CR_STRT | ((uint32_t)VoltageRange <<8);
  /* Data synchronous Barrier (DSB) Just after the write operation
     This will force the CPU to respect the sequence of instruction (no optimization).*/
  __DSB();
}

FLASH_OB_BootAddressConfig()

static HAL_StatusTypeDef FLASH_OB_BootAddressConfig ( uint32_t  BootOption, uint32_t  Address  )

static

Configure Boot base address.

Parameters

BootOption

: specifies Boot base address depending from Boot pin = 0 or pin = 1 This parameter can be one of the following values: OPTIONBYTE_BOOTADDR_0 : Boot address based when Boot pin = 0 OPTIONBYTE_BOOTADDR_1 : Boot address based when Boot pin = 1

Address

specifies Boot base address This parameter can be one of the following values: OB_BOOTADDR_ITCM_RAM : Boot from ITCM RAM (0x00000000) OB_BOOTADDR_SYSTEM : Boot from System memory bootloader (0x00100000) OB_BOOTADDR_ITCM_FLASH : Boot from Flash on ITCM interface (0x00200000) OB_BOOTADDR_AXIM_FLASH : Boot from Flash on AXIM interface (0x08000000) OB_BOOTADDR_DTCM_RAM : Boot from DTCM RAM (0x20000000) OB_BOOTADDR_SRAM1 : Boot from SRAM1 (0x20010000) OB_BOOTADDR_SRAM2 : Boot from SRAM2 (0x2004C000)

Return values

HAL

Status

Definition at line 958 of file stm32f7xx_hal_flash_ex.c.

{
  HAL_StatusTypeDef status = HAL_OK;
  
  /* Check the parameters */
  assert_param(IS_OB_BOOT_ADDRESS(Address));
    
  /* Wait for last operation to be completed */
  status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
  
  if(status == HAL_OK)
  {
    if(BootOption == OPTIONBYTE_BOOTADDR_0)
    {           
      MODIFY_REG(FLASH->OPTCR1, FLASH_OPTCR1_BOOT_ADD0, Address);
    }
    else
    {
      MODIFY_REG(FLASH->OPTCR1, FLASH_OPTCR1_BOOT_ADD1, (Address << 16));
    }
  }
  
  return status;
}

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FLASH_OB_BootConfig()

static HAL_StatusTypeDef FLASH_OB_BootConfig ( uint8_t  BootConfig )

static

Configure the Dual Bank Boot.

Note

This function can be used only for STM32F42xxx/43xxx devices.

Parameters

BootConfig

specifies the Dual Bank Boot Option byte. This parameter can be one of the following values: OB_Dual_BootEnabled: Dual Bank Boot Enable OB_Dual_BootDisabled: Dual Bank Boot Disabled

Return values

None

Definition at line 829 of file stm32f4xx_hal_flash_ex.c.

{
  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;
}

Referenced by HAL_FLASHEx_AdvOBProgram().

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FLASH_OB_BOR_LevelConfig()

static HAL_StatusTypeDef FLASH_OB_BOR_LevelConfig ( uint8_t  Level )

static

Set the BOR Level.

Parameters

Level

specifies the Option Bytes BOR Reset Level. This parameter can be one of the following values: 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

Return values

HAL

Status

Definition at line 927 of file stm32f7xx_hal_flash_ex.c.

{
  /* Check the parameters */
  assert_param(IS_OB_BOR_LEVEL(Level));
 
  /* Set the BOR Level */
  MODIFY_REG(FLASH->OPTCR, FLASH_OPTCR_BOR_LEV, Level);
  
  return HAL_OK;
  
}

FLASH_OB_DisablePCROP() [1/2]

static HAL_StatusTypeDef FLASH_OB_DisablePCROP ( uint32_t  Sector )

static

Disable the read/write protection (PCROP) of the desired sectors.

Note

This function can be used only for STM32F401xx devices.

Parameters

Sector

specifies the sector(s) to be read/write protected or unprotected. This parameter can be one of the following values: OB_PCROP: A value between OB_PCROP_Sector0 and OB_PCROP_Sector5 OB_PCROP_Sector_All

Return values

HAL

Status

Definition at line 1186 of file stm32f4xx_hal_flash_ex.c.

{  
  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;
 
}

Referenced by HAL_FLASHEx_AdvOBProgram().

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FLASH_OB_DisablePCROP() [2/2]

static HAL_StatusTypeDef FLASH_OB_DisablePCROP ( uint32_t  SectorBank1, uint32_t  SectorBank2, uint32_t  Banks  )

static

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.

Parameters

SectorBank1	specifies the sector(s) to be read/write protected or unprotected for bank1. This parameter can be one of the following values: OB_PCROP: A value between OB_PCROP_SECTOR_0 and OB_PCROP_SECTOR_11 OB_PCROP_SECTOR__All
SectorBank2	Specifies the sector(s) to be read/write protected or unprotected for bank2. This parameter can be one of the following values: OB_PCROP: A value between OB_PCROP_SECTOR_12 and OB_PCROP_SECTOR_23 OB_PCROP_SECTOR__All
Banks	Disable PCROP protection on all the sectors for the specific bank This parameter can be one of the following values: FLASH_BANK_1: WRP on all sectors of bank1 FLASH_BANK_2: WRP on all sectors of bank2 FLASH_BANK_BOTH: WRP on all sectors of bank1 & bank2

Return values

HAL

Status

Definition at line 933 of file stm32f4xx_hal_flash_ex.c.

{  
  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;
 
}

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FLASH_OB_DisableWRP() [1/2]

static HAL_StatusTypeDef FLASH_OB_DisableWRP ( uint32_t  WRPSector )

static

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

Parameters

WRPSector

specifies the sector(s) to be write protected. This parameter can be one of the following values: WRPSector: A value between OB_WRP_SECTOR_0 and OB_WRP_SECTOR_7 (for STM32F74xxx/STM32F75xxx devices) or a value between OB_WRP_SECTOR_0 and OB_WRP_SECTOR_11 (in Single Bank mode for STM32F76xxx/STM32F77xxx devices) or a value between OB_WRP_DB_SECTOR_0 and OB_WRP_DB_SECTOR_23 (in Dual Bank mode for STM32F76xxx/STM32F77xxx devices) OB_WRP_Sector_All

Return values

HAL

Status

Definition at line 868 of file stm32f7xx_hal_flash_ex.c.

{
  HAL_StatusTypeDef status = HAL_OK;
  
  /* Check the parameters */
  assert_param(IS_OB_WRP_SECTOR(WRPSector));
    
  /* Wait for last operation to be completed */
  status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
 
  if(status == HAL_OK)
  {
    /* Write protection disabled on sectors */
    FLASH->OPTCR |= (WRPSector); 
  }
 
  return status;
}

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FLASH_OB_DisableWRP() [2/2]

static HAL_StatusTypeDef FLASH_OB_DisableWRP ( uint32_t  WRPSector, uint32_t  Banks  )

static

Disable the write protection of the desired bank1 or bank 2 sectors.

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

Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).

Parameters

WRPSector

specifies the sector(s) to be write protected. This parameter can be one of the following values: WRPSector: A value between OB_WRP_SECTOR_0 and OB_WRP_SECTOR_23 OB_WRP_Sector_All

Note

BANK2 starts from OB_WRP_SECTOR_12

Parameters

Banks

Disable write protection on all the sectors for the specific bank This parameter can be one of the following values: FLASH_BANK_1: Bank1 to be erased FLASH_BANK_2: Bank2 to be erased FLASH_BANK_BOTH: Bank1 and Bank2 to be erased

Return values

HAL

Status

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

Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).

Parameters

WRPSector	specifies the sector(s) to be write protected. The value of this parameter depend on device used within the same series
Banks	Enable write protection on all the sectors for the specific bank This parameter can be one of the following values: FLASH_BANK_1: WRP on all sectors of bank1

Return values

HAL

Status

Definition at line 768 of file stm32f4xx_hal_flash_ex.c.

{
  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;
}

Referenced by HAL_FLASHEx_OBProgram().

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FLASH_OB_EnablePCROP() [1/2]

static HAL_StatusTypeDef FLASH_OB_EnablePCROP ( uint32_t  Sector )

static

Enable the read/write protection (PCROP) of the desired sectors.

Note

This function can be used only for STM32F401xx devices.

Parameters

Sector

specifies the sector(s) to be read/write protected or unprotected. This parameter can be one of the following values: OB_PCROP: A value between OB_PCROP_Sector0 and OB_PCROP_Sector5 OB_PCROP_Sector_All

Return values

HAL

Status

Definition at line 1158 of file stm32f4xx_hal_flash_ex.c.

{
  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;
}

Referenced by HAL_FLASHEx_AdvOBProgram().

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FLASH_OB_EnablePCROP() [2/2]

static HAL_StatusTypeDef FLASH_OB_EnablePCROP ( uint32_t  SectorBank1, uint32_t  SectorBank2, uint32_t  Banks  )

static

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.

Parameters

SectorBank1	Specifies the sector(s) to be read/write protected or unprotected for bank1. This parameter can be one of the following values: OB_PCROP: A value between OB_PCROP_SECTOR_0 and OB_PCROP_SECTOR_11 OB_PCROP_SECTOR__All
SectorBank2	Specifies the sector(s) to be read/write protected or unprotected for bank2. This parameter can be one of the following values: OB_PCROP: A value between OB_PCROP_SECTOR_12 and OB_PCROP_SECTOR_23 OB_PCROP_SECTOR__All
Banks	Enable PCROP protection on all the sectors for the specific bank This parameter can be one of the following values: FLASH_BANK_1: WRP on all sectors of bank1 FLASH_BANK_2: WRP on all sectors of bank2 FLASH_BANK_BOTH: WRP on all sectors of bank1 & bank2

Return values

HAL

Status

Definition at line 869 of file stm32f4xx_hal_flash_ex.c.

{
  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;
}

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FLASH_OB_EnableWRP() [1/2]

static HAL_StatusTypeDef FLASH_OB_EnableWRP ( uint32_t  WRPSector )

static

Enable the write protection of the desired bank1 or bank2 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 CortexM7
debug features are connected or boot code is executed in RAM, even if nWRPi = 1

Parameters

WRPSector

specifies the sector(s) to be write protected. This parameter can be one of the following values: WRPSector: A value between OB_WRP_SECTOR_0 and OB_WRP_SECTOR_7 (for STM32F74xxx/STM32F75xxx devices) or a value between OB_WRP_SECTOR_0 and OB_WRP_SECTOR_11 (in Single Bank mode for STM32F76xxx/STM32F77xxx devices) or a value between OB_WRP_DB_SECTOR_0 and OB_WRP_DB_SECTOR_23 (in Dual Bank mode for STM32F76xxx/STM32F77xxx devices) OB_WRP_SECTOR_All

Return values

HAL	FLASH State

Definition at line 832 of file stm32f7xx_hal_flash_ex.c.

{
  HAL_StatusTypeDef status = HAL_OK;
  
  /* Check the parameters */
  assert_param(IS_OB_WRP_SECTOR(WRPSector));
    
  /* Wait for last operation to be completed */
  status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
 
  if(status == HAL_OK)
  {
    /*Write protection enabled on sectors */
    FLASH->OPTCR &= (~WRPSector);  
  }
  
  return status;
}

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FLASH_OB_EnableWRP() [2/2]

static HAL_StatusTypeDef FLASH_OB_EnableWRP ( uint32_t  WRPSector, uint32_t  Banks  )

static

Enable the write protection of the desired bank1 or bank 2 sectors.

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

Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).

Parameters

WRPSector

specifies the sector(s) to be write protected. This parameter can be one of the following values: WRPSector: A value between OB_WRP_SECTOR_0 and OB_WRP_SECTOR_23 OB_WRP_SECTOR_All

Note

BANK2 starts from OB_WRP_SECTOR_12

Parameters

Banks

Enable write protection on all the sectors for the specific bank This parameter can be one of the following values: FLASH_BANK_1: WRP on all sectors of bank1 FLASH_BANK_2: WRP on all sectors of bank2 FLASH_BANK_BOTH: WRP on all sectors of bank1 & bank2

Return values

HAL	FLASH State

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

Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).

Parameters

WRPSector	specifies the sector(s) to be write protected. The value of this parameter depend on device used within the same series
Banks	Enable write protection on all the sectors for the specific bank This parameter can be one of the following values: FLASH_BANK_1: WRP on all sectors of bank1

Return values

HAL

Status

Definition at line 697 of file stm32f4xx_hal_flash_ex.c.

{
  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;
}

Referenced by HAL_FLASHEx_OBProgram().

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FLASH_OB_GetBootAddress()

static uint32_t FLASH_OB_GetBootAddress ( uint32_t  BootOption )

static

Configure Boot base address.

Parameters

BootOption

: specifies Boot base address depending from Boot pin = 0 or pin = 1 This parameter can be one of the following values: OPTIONBYTE_BOOTADDR_0 : Boot address based when Boot pin = 0 OPTIONBYTE_BOOTADDR_1 : Boot address based when Boot pin = 1

Return values

uint32_t

Boot Base Address: OB_BOOTADDR_ITCM_RAM : Boot from ITCM RAM (0x00000000) OB_BOOTADDR_SYSTEM : Boot from System memory bootloader (0x00100000) OB_BOOTADDR_ITCM_FLASH : Boot from Flash on ITCM interface (0x00200000) OB_BOOTADDR_AXIM_FLASH : Boot from Flash on AXIM interface (0x08000000) OB_BOOTADDR_DTCM_RAM : Boot from DTCM RAM (0x20000000) OB_BOOTADDR_SRAM1 : Boot from SRAM1 (0x20010000) OB_BOOTADDR_SRAM2 : Boot from SRAM2 (0x2004C000)

Definition at line 1042 of file stm32f7xx_hal_flash_ex.c.

{  
  uint32_t Address = 0;
    
    /* Return the Boot base Address */
  if(BootOption == OPTIONBYTE_BOOTADDR_0)
  {         
    Address = FLASH->OPTCR1 & FLASH_OPTCR1_BOOT_ADD0;
    }
  else
    {
        Address = ((FLASH->OPTCR1 & FLASH_OPTCR1_BOOT_ADD1) >> 16);
    }
 
  return Address;
}

FLASH_OB_GetBOR()

static uint32_t FLASH_OB_GetBOR ( void  )

static

Returns the FLASH BOR level.

Return values

uint32_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

Definition at line 1019 of file stm32f7xx_hal_flash_ex.c.

{
  /* Return the FLASH BOR level */
  return ((uint32_t)(FLASH->OPTCR & 0x0C));
}

FLASH_OB_GetPCROP()

static uint32_t FLASH_OB_GetPCROP ( void  )

static

Return the FLASH PCROP Protection Option Bytes value.

Return values

uint32_t

FLASH PCROP Protection Option Bytes value

Definition at line 1115 of file stm32f7xx_hal_flash_ex.c.

{
  /* Return the FLASH write protection Register value */
  return ((uint32_t)(FLASH->OPTCR2 & FLASH_OPTCR2_PCROP));
}

FLASH_OB_GetPCROPRDP()

static uint32_t FLASH_OB_GetPCROPRDP ( void  )

static

Return the FLASH PCROP_RDP option byte value.

Return values

uint32_t

FLASH PCROP_RDP option byte value

Definition at line 1125 of file stm32f7xx_hal_flash_ex.c.

{
  /* Return the FLASH write protection Register value */
  return ((uint32_t)(FLASH->OPTCR2 & FLASH_OPTCR2_PCROP_RDP));
}

FLASH_OB_GetRDP()

static uint8_t FLASH_OB_GetRDP ( void  )

static

Returns the FLASH Read Protection level.

Return values

FlagStatus

FLASH ReadOut Protection Status: This parameter can be one of the following values: OB_RDP_LEVEL_0: No protection OB_RDP_LEVEL_1: Read protection of the memory OB_RDP_LEVEL_2: Full chip protection

Definition at line 991 of file stm32f7xx_hal_flash_ex.c.

{
  uint8_t readstatus = OB_RDP_LEVEL_0;
  
  if ((*(__IO uint8_t*)(OPTCR_BYTE1_ADDRESS)) == OB_RDP_LEVEL_0)
  {
    readstatus = OB_RDP_LEVEL_0;
  }
  else if ((*(__IO uint8_t*)(OPTCR_BYTE1_ADDRESS)) == OB_RDP_LEVEL_2)
  {
    readstatus = OB_RDP_LEVEL_2;
  }
  else 
  {
    readstatus = OB_RDP_LEVEL_1;
  }
 
  return readstatus;
}

FLASH_OB_GetUser()

static uint32_t FLASH_OB_GetUser ( void  )

static

Return the FLASH User Option Byte value.

Return values

uint32_t	FLASH User Option Bytes values: WWDG_SW(Bit4), IWDG_SW(Bit5), nRST_STOP(Bit6), nRST_STDBY(Bit7), nDBOOT(Bit28), nDBANK(Bit29), IWDG_STDBY(Bit30) and IWDG_STOP(Bit31).
uint32_t	FLASH User Option Bytes values: WWDG_SW(Bit4), IWDG_SW(Bit5), nRST_STOP(Bit6), nRST_STDBY(Bit7), IWDG_STDBY(Bit30) and IWDG_STOP(Bit31).

Definition at line 643 of file stm32f7xx_hal_flash_ex.c.

{
  /* Return the User Option Byte */
  return ((uint32_t)(FLASH->OPTCR & 0xF00000F0U));
}

FLASH_OB_GetWRP()

static uint32_t FLASH_OB_GetWRP ( void  )

static

Return the FLASH Write Protection Option Bytes value.

Return values

uint32_t

FLASH Write Protection Option Bytes value

Definition at line 559 of file stm32f7xx_hal_flash_ex.c.

{
  /* Return the FLASH write protection Register value */
  return ((uint32_t)(FLASH->OPTCR & 0x0FFF0000));
}

FLASH_OB_PCROP_Config()

static HAL_StatusTypeDef FLASH_OB_PCROP_Config ( uint32_t  PCROPSector )

static

Set the PCROP protection for sectors.

Parameters

PCROPSector

specifies the sector(s) to be PCROP protected. This parameter can be one of the following values: OB_PCROP_SECTOR_x: A value between OB_PCROP_SECTOR_0 and OB_PCROP_SECTOR_7 OB_PCROP_SECTOR_ALL

Return values

HAL

Status

Definition at line 1069 of file stm32f7xx_hal_flash_ex.c.

{
  HAL_StatusTypeDef status = HAL_OK;
  
  /* Check the parameters */
  assert_param(IS_OB_PCROP_SECTOR(PCROPSector));
    
  /* Wait for last operation to be completed */
  status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
 
  if(status == HAL_OK)
  { 
    MODIFY_REG(FLASH->OPTCR2, FLASH_OPTCR2_PCROP, PCROPSector);
  }
  
  return status;
}

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FLASH_OB_PCROP_RDP_Config()

static HAL_StatusTypeDef FLASH_OB_PCROP_RDP_Config ( uint32_t  Pcrop_Rdp )

static

Set the PCROP_RDP value.

Parameters

Pcrop_Rdp

specifies the PCROP_RDP bit value.

Return values

HAL

Status

Definition at line 1093 of file stm32f7xx_hal_flash_ex.c.

{
  HAL_StatusTypeDef status = HAL_OK;
  
  /* Check the parameters */
  assert_param(IS_OB_PCROP_RDP_VALUE(Pcrop_Rdp));
    
  /* Wait for last operation to be completed */
  status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
 
  if(status == HAL_OK)
  { 
    MODIFY_REG(FLASH->OPTCR2, FLASH_OPTCR2_PCROP_RDP, Pcrop_Rdp);
  }
  
  return status;
}

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FLASH_OB_RDP_LevelConfig()

static HAL_StatusTypeDef FLASH_OB_RDP_LevelConfig ( uint8_t  Level )

static

Set the read protection level.

Parameters

Level

specifies the read protection level. This parameter can be one of the following values: OB_RDP_LEVEL_0: No protection OB_RDP_LEVEL_1: Read protection of the memory 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

Return values

HAL

Status

Definition at line 899 of file stm32f7xx_hal_flash_ex.c.

{
  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;
}

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FLASH_OB_UserConfig() [1/3]

static HAL_StatusTypeDef FLASH_OB_UserConfig ( uint32_t  Wwdg, uint32_t  Iwdg, uint32_t  Stop, uint32_t  Stdby, uint32_t  Iwdgstop, \ uint32_t  Iwdgstdby, uint32_t  NDBank, uint32_t  NDBoot  )

static

Program the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY.

Parameters

Wwdg	Selects the IWDG mode This parameter can be one of the following values: OB_WWDG_SW: Software WWDG selected OB_WWDG_HW: Hardware WWDG selected
Iwdg	Selects the WWDG mode This parameter can be one of the following values: OB_IWDG_SW: Software IWDG selected OB_IWDG_HW: Hardware IWDG selected
Stop	Reset event when entering STOP mode. This parameter can be one of the following values: OB_STOP_NO_RST: No reset generated when entering in STOP OB_STOP_RST: Reset generated when entering in STOP
Stdby	Reset event when entering Standby mode. This parameter can be one of the following values: OB_STDBY_NO_RST: No reset generated when entering in STANDBY OB_STDBY_RST: Reset generated when entering in STANDBY
Iwdgstop	Independent watchdog counter freeze in Stop mode. This parameter can be one of the following values: OB_IWDG_STOP_FREEZE: Freeze IWDG counter in STOP OB_IWDG_STOP_ACTIVE: IWDG counter active in STOP
Iwdgstdby	Independent watchdog counter freeze in standby mode. This parameter can be one of the following values: OB_IWDG_STDBY_FREEZE: Freeze IWDG counter in STANDBY OB_IWDG_STDBY_ACTIVE: IWDG counter active in STANDBY
NDBank	Flash Single Bank mode enabled. This parameter can be one of the following values: OB_NDBANK_SINGLE_BANK: enable 256 bits mode (Flash is a single bank) OB_NDBANK_DUAL_BANK: disable 256 bits mode (Flash is a dual bank in 128 bits mode)
NDBoot	Flash Dual boot mode disable. This parameter can be one of the following values: OB_DUAL_BOOT_DISABLE: Disable Dual Boot OB_DUAL_BOOT_ENABLE: Enable Dual Boot

Return values

HAL

Status

Definition at line 602 of file stm32f7xx_hal_flash_ex.c.

{
  uint32_t useroptionmask = 0x00;
  uint32_t useroptionvalue = 0x00;
 
  HAL_StatusTypeDef status = HAL_OK;
 
  /* Check the parameters */
  assert_param(IS_OB_WWDG_SOURCE(Wwdg));
  assert_param(IS_OB_IWDG_SOURCE(Iwdg));
  assert_param(IS_OB_STOP_SOURCE(Stop));
  assert_param(IS_OB_STDBY_SOURCE(Stdby));
  assert_param(IS_OB_IWDG_STOP_FREEZE(Iwdgstop));
  assert_param(IS_OB_IWDG_STDBY_FREEZE(Iwdgstdby));
  assert_param(IS_OB_NDBANK(NDBank));
  assert_param(IS_OB_NDBOOT(NDBoot));
  
  /* Wait for last operation to be completed */
  status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
  
  if(status == HAL_OK)
  {
    useroptionmask = (FLASH_OPTCR_WWDG_SW | FLASH_OPTCR_IWDG_SW | FLASH_OPTCR_nRST_STOP | \
                      FLASH_OPTCR_nRST_STDBY | FLASH_OPTCR_IWDG_STOP | FLASH_OPTCR_IWDG_STDBY | \
                      FLASH_OPTCR_nDBOOT | FLASH_OPTCR_nDBANK);
                      
    useroptionvalue = (Iwdg | Wwdg | Stop | Stdby | Iwdgstop | Iwdgstdby | NDBoot | NDBank);
        
    /* Update User Option Byte */               
    MODIFY_REG(FLASH->OPTCR, useroptionmask, useroptionvalue);
  }
  
  return status; 
}

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FLASH_OB_UserConfig() [2/3]

static HAL_StatusTypeDef FLASH_OB_UserConfig ( uint32_t  Wwdg, uint32_t  Iwdg, uint32_t  Stop, uint32_t  Stdby, uint32_t  Iwdgstop, uint32_t  Iwdgstdby  )

static

Program the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY.

Parameters

Wwdg	Selects the IWDG mode This parameter can be one of the following values: OB_WWDG_SW: Software WWDG selected OB_WWDG_HW: Hardware WWDG selected
Iwdg	Selects the WWDG mode This parameter can be one of the following values: OB_IWDG_SW: Software IWDG selected OB_IWDG_HW: Hardware IWDG selected
Stop	Reset event when entering STOP mode. This parameter can be one of the following values: OB_STOP_NO_RST: No reset generated when entering in STOP OB_STOP_RST: Reset generated when entering in STOP
Stdby	Reset event when entering Standby mode. This parameter can be one of the following values: OB_STDBY_NO_RST: No reset generated when entering in STANDBY OB_STDBY_RST: Reset generated when entering in STANDBY
Iwdgstop	Independent watchdog counter freeze in Stop mode. This parameter can be one of the following values: OB_IWDG_STOP_FREEZE: Freeze IWDG counter in STOP OB_IWDG_STOP_ACTIVE: IWDG counter active in STOP
Iwdgstdby	Independent watchdog counter freeze in standby mode. This parameter can be one of the following values: OB_IWDG_STDBY_FREEZE: Freeze IWDG counter in STANDBY OB_IWDG_STDBY_ACTIVE: IWDG counter active in STANDBY

Return values

HAL

Status

Definition at line 771 of file stm32f7xx_hal_flash_ex.c.

{
  uint32_t useroptionmask = 0x00;
  uint32_t useroptionvalue = 0x00;
 
  HAL_StatusTypeDef status = HAL_OK;
 
  /* Check the parameters */
  assert_param(IS_OB_WWDG_SOURCE(Wwdg));
  assert_param(IS_OB_IWDG_SOURCE(Iwdg));
  assert_param(IS_OB_STOP_SOURCE(Stop));
  assert_param(IS_OB_STDBY_SOURCE(Stdby));
  assert_param(IS_OB_IWDG_STOP_FREEZE(Iwdgstop));
  assert_param(IS_OB_IWDG_STDBY_FREEZE(Iwdgstdby));
 
  /* Wait for last operation to be completed */
  status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
  
  if(status == HAL_OK)
  {
    useroptionmask = (FLASH_OPTCR_WWDG_SW | FLASH_OPTCR_IWDG_SW | FLASH_OPTCR_nRST_STOP | \
                      FLASH_OPTCR_nRST_STDBY | FLASH_OPTCR_IWDG_STOP | FLASH_OPTCR_IWDG_STDBY);
                      
    useroptionvalue = (Iwdg | Wwdg | Stop | Stdby | Iwdgstop | Iwdgstdby);
        
    /* Update User Option Byte */               
    MODIFY_REG(FLASH->OPTCR, useroptionmask, useroptionvalue);
  }
  
  return status; 
 
}

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FLASH_OB_UserConfig() [3/3]

static HAL_StatusTypeDef FLASH_OB_UserConfig ( uint8_t  Iwdg, uint8_t  Stop, uint8_t  Stdby  )

static

Program the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY.

Parameters

Iwdg	Selects the IWDG mode This parameter can be one of the following values: OB_IWDG_SW: Software IWDG selected OB_IWDG_HW: Hardware IWDG selected
Stop	Reset event when entering STOP mode. This parameter can be one of the following values: OB_STOP_NO_RST: No reset generated when entering in STOP OB_STOP_RST: Reset generated when entering in STOP
Stdby	Reset event when entering Standby mode. This parameter can be one of the following values: OB_STDBY_NO_RST: No reset generated when entering in STANDBY OB_STDBY_RST: Reset generated when entering in STANDBY

Return values

HAL

Status

Definition at line 1252 of file stm32f4xx_hal_flash_ex.c.

{
  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; 
}

Referenced by HAL_FLASHEx_OBProgram().

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