/**
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********************************************************************************
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* @file stm8s_iwdg.c
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* @author MCD Application Team
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* @version V2.3.0
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* @date 16-June-2017
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* @brief This file contains all the functions for the IWDG peripheral.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2>
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm8s_iwdg.h"
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/* Public functions ----------------------------------------------------------*/
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/** @addtogroup IWDG_Public_Functions
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* @{
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*/
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/**
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* @brief Enables or disables write access to Prescaler and Reload registers.
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* @param IWDG_WriteAccess : New state of write access to Prescaler and Reload
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* registers. This parameter can be a value of @ref IWDG_WriteAccess_TypeDef.
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* @retval None
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*/
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void IWDG_WriteAccessCmd(IWDG_WriteAccess_TypeDef IWDG_WriteAccess)
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{
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/* Check the parameters */
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assert_param(IS_IWDG_WRITEACCESS_MODE_OK(IWDG_WriteAccess));
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IWDG->KR = (uint8_t)IWDG_WriteAccess; /* Write Access */
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}
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/**
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* @brief Sets IWDG Prescaler value.
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* @note Write access should be enabled
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* @param IWDG_Prescaler : Specifies the IWDG Prescaler value.
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* This parameter can be a value of @ref IWDG_Prescaler_TypeDef.
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* @retval None
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*/
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void IWDG_SetPrescaler(IWDG_Prescaler_TypeDef IWDG_Prescaler)
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{
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/* Check the parameters */
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assert_param(IS_IWDG_PRESCALER_OK(IWDG_Prescaler));
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IWDG->PR = (uint8_t)IWDG_Prescaler;
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}
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/**
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* @brief Sets IWDG Reload value.
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* @note Write access should be enabled
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* @param IWDG_Reload : Reload register value.
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* This parameter must be a number between 0 and 0xFF.
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* @retval None
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*/
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void IWDG_SetReload(uint8_t IWDG_Reload)
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{
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IWDG->RLR = IWDG_Reload;
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}
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/**
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* @brief Reloads IWDG counter
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* @note Write access should be enabled
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* @param None
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* @retval None
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*/
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void IWDG_ReloadCounter(void)
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{
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IWDG->KR = IWDG_KEY_REFRESH;
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}
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/**
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* @brief Enables IWDG.
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* @param None
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* @retval None
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*/
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void IWDG_Enable(void)
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{
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IWDG->KR = IWDG_KEY_ENABLE;
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}
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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