Extended specific configuration functions

Extended specific configuration functions. More...

Functions
HAL_StatusTypeDef	HAL_FLASHEx_ConfigLVEPin (uint32_t ConfigLVE)
	Configuration of the LVE pin of the Flash (managed by power controller or forced to low in order to use an external SMPS) More...

Detailed Description

Extended specific configuration functions.

 ===============================================================================
                ##### Extended specific configuration functions #####
 ===============================================================================
    [..]
    This subsection provides a set of functions allowing to manage the Extended FLASH
    specific configurations.

Function Documentation

HAL_FLASHEx_ConfigLVEPin()

HAL_StatusTypeDef HAL_FLASHEx_ConfigLVEPin

(

uint32_t

ConfigLVE

)

Configuration of the LVE pin of the Flash (managed by power controller or forced to low in order to use an external SMPS)

Parameters

ConfigLVE

Configuration of the LVE pin, This parameter can be one of the following values: FLASH_LVE_PIN_CTRL: LVE FLASH pin controlled by power controller FLASH_LVE_PIN_FORCED: LVE FLASH pin enforced to low (external SMPS used)

Note

Before enforcing the LVE pin to low, the SOC should be in low voltage range 2 and the voltage VDD12 should be higher than 1.08V and SMPS is ON.

Return values

HAL

Status

Definition at line 446 of file stm32l4xx_hal_flash_ex.c.

{
  HAL_StatusTypeDef status;

  /* Process Locked */
  __HAL_LOCK(&pFlash);

  /* Check the parameters */
  assert_param(IS_FLASH_LVE_PIN(ConfigLVE));

  /* Wait for last operation to be completed */
  status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);

  if (status == HAL_OK)
  {
    /* Check that the voltage scaling is range 2 */
    if (HAL_PWREx_GetVoltageRange() == PWR_REGULATOR_VOLTAGE_SCALE2)
    {
      /* Configure the LVEN bit */
      MODIFY_REG(FLASH->CFGR, FLASH_CFGR_LVEN, ConfigLVE);

      /* Check that the bit has been correctly configured */
      if (READ_BIT(FLASH->CFGR, FLASH_CFGR_LVEN) != ConfigLVE)
      {
        status = HAL_ERROR;
      }
    }
    else
    {
      /* Not allow to force Flash LVE pin if not in voltage range 2 */
      status = HAL_ERROR;
    }
  }

  /* Process Unlocked */
  __HAL_UNLOCK(&pFlash);

  return status;
}