/**
* @brief DeInitializes the WWDG peripheral.
* @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains
* the configuration information for the specified WWDG module.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_WWDG_DeInit(WWDG_HandleTypeDef *hwwdg)
{
/* Check the parameters */
assert_param(IS_WWDG_ALL_INSTANCE(hwwdg->Instance));
/* Change WWDG peripheral state */
hwwdg->State = HAL_WWDG_STATE_BUSY;
/* DeInit the low level hardware */
HAL_WWDG_MspDeInit(hwwdg);
/* Reset WWDG Control register */
hwwdg->Instance->CR = (uint32_t)0x0000007F;
/* Reset WWDG Configuration register */
hwwdg->Instance->CFR = (uint32_t)0x0000007F;
/* Reset WWDG Status register */
hwwdg->Instance->SR = 0;
/* Change WWDG peripheral state */
hwwdg->State = HAL_WWDG_STATE_RESET;
/* Release Lock */
__HAL_UNLOCK(hwwdg);
/* Return function status */
return HAL_OK;
}
/**
* @brief DeInitializes the WWDG peripheral.
* @param hwwdg : pointer to a WWDG_HandleTypeDef structure that contains
* the configuration information for the specified WWDG module.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_WWDG_DeInit(WWDG_HandleTypeDef *hwwdg)
{
/* Check the parameters */
assert_param(IS_WWDG_ALL_INSTANCE(hwwdg->Instance));
/* Take lock and change peripheral state */
__HAL_LOCK(hwwdg);
hwwdg->State = HAL_WWDG_STATE_BUSY;
/* DeInit the low level hardware */
HAL_WWDG_MspDeInit(hwwdg);
/* Reset WWDG Control, configuration and status register */
MODIFY_REG(hwwdg->Instance->CR, (WWDG_CR_T | WWDG_CR_WDGA),0x0000007F);
MODIFY_REG(hwwdg->Instance->CFR, (WWDG_CFR_WDGTB | WWDG_CFR_W | WWDG_CFR_EWI),0x0000007F);
MODIFY_REG(hwwdg->Instance->SR,WWDG_SR_EWIF,0x0);
/* Change peripheral state and release lock*/
hwwdg->State = HAL_WWDG_STATE_RESET;
__HAL_UNLOCK(hwwdg);
/* Return function status */
return HAL_OK;
}
