199 lines
5.4 KiB
C
199 lines
5.4 KiB
C
/************************************************************************************************/
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/**
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* @file ciu32l051_std_iwdg.h
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* @author MCU Ecosystem Development Team
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* @brief IWDG STD库驱动头文件。
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* 提供IWDG相关的STD库操作函数声明、数据类型以及常量的定义。
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*
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*
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**************************************************************************************************
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* @attention
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* Copyright (c) CEC Huada Electronic Design Co.,Ltd. All rights reserved.
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*
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**************************************************************************************************
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*/
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/* 避免头文件重复引用 */
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#ifndef CIU32L051_STD_IWDG_H
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#define CIU32L051_STD_IWDG_H
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/************************************************************************************************/
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/**
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* @addtogroup CIU32L051_STD_Driver
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* @{
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*/
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/**
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* @defgroup IWDG IWDG
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* @brief 独立看门狗的STD库驱动
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* @{
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*
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*/
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/************************************************************************************************/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*------------------------------------------includes--------------------------------------------*/
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#include "ciu32l051_std_common.h"
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/*--------------------------------------------define--------------------------------------------*/
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/************************************************************************************************/
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/**
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* @defgroup IWDG_Constants IWDG Constants
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* @brief IWDG常量定义及宏定义
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* @{
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*
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*/
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/************************************************************************************************/
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/* IWDG控制值定义 */
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#define IWDG_RELOAD (0x0000AAAAUL) /**< IWDG 喂狗 */
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#define IWDG_ENABLE (0x0000CCCCUL) /**< IWDG 使能 */
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#define IWDG_WRITE_ACCESS_ENABLE (0x00005555UL) /**< IWDG 写权限使能 */
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#define IWDG_WRITE_ACCESS_DISABLE (0x00000000UL) /**< IWDG 写权限关闭 */
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/* IWDG计数溢出时间定义 */
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#define IWDG_OVERFLOW_PERIOD_128 IWDG_CFG_OVP_128 /**< IWDG溢出时间为128ms */
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#define IWDG_OVERFLOW_PERIOD_256 IWDG_CFG_OVP_256 /**< IWDG溢出时间为256ms */
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#define IWDG_OVERFLOW_PERIOD_512 IWDG_CFG_OVP_512 /**< IWDG溢出时间为512ms */
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#define IWDG_OVERFLOW_PERIOD_1024 IWDG_CFG_OVP_1024 /**< IWDG溢出时间为1.024s */
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#define IWDG_OVERFLOW_PERIOD_2048 IWDG_CFG_OVP_2048 /**< IWDG溢出时间为2.048s */
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#define IWDG_OVERFLOW_PERIOD_4096 IWDG_CFG_OVP_4096 /**< IWDG溢出时间为4.096s */
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#define IWDG_OVERFLOW_PERIOD_8192 IWDG_CFG_OVP_8192 /**< IWDG溢出时间为8.192s */
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#define IWDG_OVERFLOW_PERIOD_16384 IWDG_CFG_OVP_16384 /**< IWDG溢出时间为16.384s */
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/**
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* @}
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*/
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/*-------------------------------------------functions------------------------------------------*/
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/************************************************************************************************/
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/**
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* @defgroup IWDG_External_Functions IWDG External Functions
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* @brief IWDG对外函数
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* @{
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*
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*/
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/************************************************************************************************/
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/**
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* @brief 启动IWDG计数
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* @note 使能IWDG后,IWDG无法停止
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* @retval 无
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*/
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__STATIC_INLINE void std_iwdg_start(void)
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{
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IWDG->CR = IWDG_ENABLE;
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}
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/**
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* @brief 使能IWDG_CFG,IWDG_WINR寄存器写权限
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* @retval 无
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*/
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__STATIC_INLINE void std_iwdg_write_access_enable(void)
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{
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IWDG->CR = IWDG_WRITE_ACCESS_ENABLE;
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}
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/**
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* @brief 禁止IWDG_CFG、IWDG_WINR寄存器写权限
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* @note 当写权限被禁止后，向IWDG_CFG、IWDG_WINR写入数据无效
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* @retval 无
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*/
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__STATIC_INLINE void std_iwdg_write_access_disable(void)
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{
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IWDG->CR = IWDG_WRITE_ACCESS_DISABLE;
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}
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/**
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* @brief IWDG喂狗
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* @retval 无
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*/
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__STATIC_INLINE void std_iwdg_refresh(void)
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{
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IWDG->CR = IWDG_RELOAD;
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}
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/**
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* @brief 配置溢出时间
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* @param overflow_period IWDG的溢出时间：
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* @arg IWDG_OVERFLOW_PERIOD_128
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* @arg IWDG_OVERFLOW_PERIOD_256
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* @arg IWDG_OVERFLOW_PERIOD_512
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* @arg IWDG_OVERFLOW_PERIOD_1024
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* @arg IWDG_OVERFLOW_PERIOD_2048
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* @arg IWDG_OVERFLOW_PERIOD_4096
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* @arg IWDG_OVERFLOW_PERIOD_8192
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* @arg IWDG_OVERFLOW_PERIOD_16384
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* @retval 无
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*/
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__STATIC_INLINE void std_iwdg_set_overflow_period(uint32_t overflow_period)
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{
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IWDG->CFG = overflow_period;
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}
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/**
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* @brief 获取溢出时间
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* @retval uint32_t IWDG的溢出时间：
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* @arg IWDG_OVERFLOW_PERIOD_128
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* @arg IWDG_OVERFLOW_PERIOD_256
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* @arg IWDG_OVERFLOW_PERIOD_512
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* @arg IWDG_OVERFLOW_PERIOD_1024
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* @arg IWDG_OVERFLOW_PERIOD_2048
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* @arg IWDG_OVERFLOW_PERIOD_4096
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* @arg IWDG_OVERFLOW_PERIOD_8192
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* @arg IWDG_OVERFLOW_PERIOD_16384
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*/
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__STATIC_INLINE uint32_t std_iwdg_get_overflow_period(void)
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{
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return(IWDG->CFG);
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}
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/**
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* @brief 配置窗口值
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* @param window IWDG的窗口值
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* @retval 无
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*/
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__STATIC_INLINE void std_iwdg_set_window(uint32_t window)
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{
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IWDG->WINR = window;
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}
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/**
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* @brief 获取窗口值
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* @retval uint32_t IWDG的窗口值
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*/
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__STATIC_INLINE uint32_t std_iwdg_get_window(void)
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{
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return(IWDG->WINR);
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}
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/**
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* @brief 获取计数值
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* @retval uint32_t IWDG的计数值
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*/
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__STATIC_INLINE uint32_t std_iwdg_get_counter(void)
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{
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return(IWDG->CNT);
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}
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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/**
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* @}
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*/
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/**
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* @}
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*/
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#endif /* CIU32L051_STD_IWDG_H */
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