65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
#ifndef INCLUDED_DEBOUNCE_H
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#define INCLUDED_DEBOUNCE_H
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#ifndef INCLUDED_STDINT_H
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#define INCLUDED_STDINT_H
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#include <stdint.h>
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#endif /*INCLUDED_STDINT_H*/
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/* ------------------------------------------------------------------------------------------------------------------ */
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/* */
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typedef enum {
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kButtonEvent_NONE = 0,
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kButtonEvent_PRESS,
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kButtonEvent_CLICK,
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kButtonEvent_DOUBLE_CLICK,
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kButtonEvent_LONG_PRESS,
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kButtonEvent_RELEASE,
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}ButtonEvent_t;
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typedef enum{
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kButtonState_IDLE = 0,
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kButtonState_DEBOUNCE, /* 按下消抖 */
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kButtonState_PRESS, /* 确认按下,等待释放或长按 */
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kButtonState_LONG_PRESS, /* 处于长按状态 */
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kButtonState_WAIT_DOUBLE, /* 等待第二次按下 */
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kButtonState_DOUBLE_DEBOUNCE, /* 第二次消抖 */
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kButtonState_RELEASE_DEBOUNCE, /* 释放消抖 */
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}ButtonState_t;
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typedef struct {
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ButtonState_t state;
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uint8_t debounce_cnt; /* 消抖计数器 */
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uint16_t long_press_cnt; /* 长按计数器 */
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uint16_t double_click_cnt; /* 双击等待计数器 */
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uint8_t is_pressed; /* 经过消抖后当前的电平: (1:按下, 0:松开) */
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uint8_t last_pressed; /* 上一次物理电平 */
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}Debounce_t;
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#define DEBOUNCE_INIT {kButtonState_IDLE, 0, 0, 0, 0, 0}
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/* ------------------------------------------------------------------------------------------------------------------ */
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/* */
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// 核心参数配置（基于 10ms 状态机轮询周期）
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#define DEBOUNCE_TICKS 3 // 消抖时间: 3 * 10ms = 30ms
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#define DEBOUNCE_LONG_TICKS 150 // 长按判定: 150 * 10ms = 1.5s
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#define DEBOUNCE_DOUBLE_TICKS 35 // 双击间隔: 35 * 10ms = 350ms
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/* ------------------------------------------------------------------------------------------------------------------ */
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/* */
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void Debounce_Init(Debounce_t* self);
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/**
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* @brief 状态机核心处理函数（需在 10ms 定时器中断或主循环定时中调用）
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* @param self: 消抖结构体指针
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* @param cur_state: 当前按键状态，1:按下, 0:松开
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* @return 检测到的事件类型
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*/
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ButtonEvent_t Debounce_Handle(Debounce_t* self, uint8_t cur_state);
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#endif /*INCLUDED_DEBOUNCE_H*/
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