216 lines
5.7 KiB
C
216 lines
5.7 KiB
C
/************************************************************************************************/
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/**
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* @file ciu32l051_std_wwdg.h
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* @author MCU Ecosystem Development Team
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* @brief WWDG STD库驱动头文件。
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* 提供WWDG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_WWDG_H
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#define CIU32L051_STD_WWDG_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 WWDG WWDG
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* @brief 窗口看门狗模块的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 WWDG_Constants WWDG Constants
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* @brief WWDG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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/* WWDG预分频寄存器定义 */
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#define WWDG_PRESCALER_1 WWDG_CFG_WDGPR_DIV1 /**< WWDG计数器频率=(PCLK1/4096)/1 */
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#define WWDG_PRESCALER_2 WWDG_CFG_WDGPR_DIV2 /**< WWDG计数器频率=(PCLK1/4096)/2 */
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#define WWDG_PRESCALER_4 WWDG_CFG_WDGPR_DIV4 /**< WWDG计数器频率=(PCLK1/4096)/4 */
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#define WWDG_PRESCALER_8 WWDG_CFG_WDGPR_DIV8 /**< WWDG计数器频率=(PCLK1/4096)/8 */
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#define WWDG_PRESCALER_16 WWDG_CFG_WDGPR_DIV16 /**< WWDG计数器频率=(PCLK1/4096)/16 */
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#define WWDG_PRESCALER_32 WWDG_CFG_WDGPR_DIV32 /**< WWDG计数器频率=(PCLK1/4096)/32 */
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#define WWDG_PRESCALER_64 WWDG_CFG_WDGPR_DIV64 /**< WWDG计数器频率=(PCLK1/4096)/64 */
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#define WWDG_PRESCALER_128 WWDG_CFG_WDGPR_DIV128 /**< WWDG计数器频率=(PCLK1/4096)/128 */
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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 WWDG_External_Functions WWDG External Functions
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* @brief WWDG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WWDG计数
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* @retval 无
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*/
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__STATIC_INLINE void std_wwdg_start(void)
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{
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WWDG->CR |= WWDG_CR_WDGEN;
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}
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/**
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* @brief 配置计数值
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* @param counter WWDG的计数值，范围为：0x00-0x3F
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* @retval 无
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*/
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__STATIC_INLINE void std_wwdg_refresh_counter(uint32_t counter)
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{
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MODIFY_REG(WWDG->CR, WWDG_CR_CNT, counter);
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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 WWDG的计数值，范围为：0x00-0x3F
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*/
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__STATIC_INLINE uint32_t std_wwdg_get_counter(void)
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{
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return(WWDG->CR & WWDG_CR_CNT);
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}
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/**
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* @brief 配置预分频值
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* @param prescaler WWDG的预分频值：
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* @arg WWDG_PRESCALER_1
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* @arg WWDG_PRESCALER_2
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* @arg WWDG_PRESCALER_4
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* @arg WWDG_PRESCALER_8
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* @arg WWDG_PRESCALER_16
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* @arg WWDG_PRESCALER_32
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* @arg WWDG_PRESCALER_64
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* @arg WWDG_PRESCALER_128
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* @retval 无
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*/
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__STATIC_INLINE void std_wwdg_set_prescaler(uint32_t prescaler)
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{
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MODIFY_REG(WWDG->CFG, WWDG_CFG_WDGPR, prescaler);
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}
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/**
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* @brief 获取预分频值
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* @retval uint32_t WWDG的预分频值：
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* @arg WWDG_PRESCALER_1
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* @arg WWDG_PRESCALER_2
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* @arg WWDG_PRESCALER_4
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* @arg WWDG_PRESCALER_8
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* @arg WWDG_PRESCALER_16
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* @arg WWDG_PRESCALER_32
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* @arg WWDG_PRESCALER_64
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* @arg WWDG_PRESCALER_128
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*/
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__STATIC_INLINE uint32_t std_wwdg_get_prescaler(void)
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{
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return(WWDG->CFG & WWDG_CFG_WDGPR);
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}
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/**
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* @brief 配置窗口值
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* @param window WWDG的窗口值，范围为：0x00-0x3F
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* @retval 无
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*/
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__STATIC_INLINE void std_wwdg_set_window(uint32_t window)
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{
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MODIFY_REG(WWDG->CFG, WWDG_CFG_WIN, 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 WWDG的窗口值，范围为：0x00-0x3F
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*/
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__STATIC_INLINE uint32_t std_wwdg_get_window(void)
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{
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return(WWDG->CFG & WWDG_CFG_WIN);
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}
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/**
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* @brief WWDG提前唤醒中断使能
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* @retval 无
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*/
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__STATIC_INLINE void std_wwdg_interrupt_enable(void)
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{
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WWDG->CFG |= WWDG_CFG_EWI;
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}
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/**
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* @brief 获取WWDG的提前唤醒中断使能状态
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* @retval bool 返回逻辑表达式的判断结果
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* @arg true： 表示使能提前唤醒中断
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* @arg false：表示未使能提前唤醒中断
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*/
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__STATIC_INLINE bool std_wwdg_get_interrupt_enable(void)
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{
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return((WWDG->CFG & WWDG_CFG_EWI) == WWDG_CFG_EWI);
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}
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/**
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* @brief 获取WWDG的提前唤醒标志状态
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* @note 不使能EWI中断，此位也会被置1
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* @retval bool 返回逻辑表达式的判断结果
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* @arg true： 表示提前唤醒标志被置起
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* @arg false：表示提前唤醒标志未置起
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*/
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__STATIC_INLINE bool std_wwdg_get_early_wakeup_flag(void)
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{
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return(WWDG->SR == WWDG_SR_EWIF);
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}
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/**
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* @brief 清除WWDG提前唤醒标志
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* @retval 无
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*/
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__STATIC_INLINE void std_wwdg_clear_early_wakeup_flag(void)
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{
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WWDG->SR &= (~ WWDG_SR_EWIF);
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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_WWDG_H */
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