EEPROM emulation on stm32 using HAL drivers

Question

I am trying to emulate an EEPROM on stm32f0. There is a note app provided by STM.

In the sample main.c,

int main(void)
{
  /*!< At this stage the microcontroller clock setting is already configured, 
       this is done through SystemInit() function which is called from startup
       file (startup_stm32f0xx.s) before to branch to application main.
       To reconfigure the default setting of SystemInit() function, refer to
       system_stm32f0xx.c file
     */  
   /* Unlock the Flash Program Erase controller */
  FLASH_Unlock();

  /* EEPROM Init */
  EE_Init();

/* --- Store successively many values of the three variables in the EEPROM ---*/
  /* Store 0x1000 values of Variable1 in EEPROM */
  for (VarValue = 1; VarValue <= 0x64; VarValue++)
  {
    EE_WriteVariable(VirtAddVarTab[0], VarValue);
  }

  /* read the last stored variables data*/
  EE_ReadVariable(VirtAddVarTab[0], &VarDataTab[0]);


  /* Store 0x2000 values of Variable2 in EEPROM */
  for (VarValue = 1; VarValue <= 0xC8; VarValue++)
  {
    EE_WriteVariable(VirtAddVarTab[1], VarValue);
  }

  /* read the last stored variables data*/
  EE_ReadVariable(VirtAddVarTab[0], &VarDataTab[0]);
  EE_ReadVariable(VirtAddVarTab[1], &VarDataTab[1]);


  /* Store 0x3000 values of Variable3 in EEPROM */
  for (VarValue = 1; VarValue <= 0x1C2; VarValue++)
  {
    EE_WriteVariable(VirtAddVarTab[2], VarValue);
  }

  /* read the last stored variables data*/
  EE_ReadVariable(VirtAddVarTab[0], &VarDataTab[0]);
  EE_ReadVariable(VirtAddVarTab[1], &VarDataTab[1]);
  EE_ReadVariable(VirtAddVarTab[2], &VarDataTab[2]);

  while (1);
}

Flash_Unlock()is a feature used in the standard STM peripheral library. However, I use CubeMX, which automatically generates code that uses HAL drivers. Do I need to Flash_Unlock()call before using the EEPROM_emulation API? If so, what is the HAL equivalent for the call Flash_Unlock()? Any special configuration settings to use EEPROM emulation on CubeMX?

Answer 1

ST Microelectronics HAL. , , googling .

document .

"EEPROM_Emulation". , NUCLEO-F091RC. .