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86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
/* Includes ----------------------------------------------------------------- */
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#include "key_gpio.h"
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#include "device.h"
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#include <gpio.h>
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/* Private define ----------------------------------------------------------- */
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/* Private macro ------------------------------------------------------------ */
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/* Private typedef ---------------------------------------------------------- */
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/* Private variables -------------------------------------------------------- */
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static uint32_t key_stats; // 使用位掩码记录每个通道的状态，最多支持32LED
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/* 外部声明标志位（标志问） */
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extern volatile uint8_t key_flag; // 1=按下，0=松开
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/* 按键状态结构 */
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typedef struct {
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uint16_t state; // 当前状态
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uint32_t press_timestamp; // 按下时间戳
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uint8_t last_flag; // 上一次的标志位（用于消抖）
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} Key_Status_t;
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static Key_Status_t key = {
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.state = DEVICE_KEY_RELEASED,
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.press_timestamp = 0,
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.last_flag = 0
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};
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/* 按键中断处理 */
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void Key_Process(void) {
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uint32_t now = HAL_GetTick();
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uint8_t current_flag = key_flag; // 获取当前标志位
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switch(key.state) {
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case DEVICE_KEY_RELEASED:
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if(current_flag == 1) {
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// 首次检测到按下，记录时间戳
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if(key.last_flag == 0) {
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key.press_timestamp = now;
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}
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// 消抖确认（20ms后仍为按下）
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if((now - key.press_timestamp) > 20) {
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key.state = DEVICE_KEY_PRESSED;
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}
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}
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break;
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case DEVICE_KEY_PRESSED:
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case DEVICE_KEY_LONG_PRESS:
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if(current_flag == 1) {
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// 持续按住超过20ms进入HOLD状态
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if((now - key.press_timestamp) > 20) {
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key.state = DEVICE_KEY_LONG_PRESS;
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}
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} else {
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key.state = DEVICE_KEY_RELEASED; // 松开复位
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}
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break;
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}
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key.last_flag = current_flag; // 更新历史状态
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}
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//获取当前按键状态
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uint16_t Get_Key_State(void) {
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return key.state;
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}
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//也许是后续逻辑(跟在前面的代码后面放在循环里）
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void KeyTask(void)
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{
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//仅按下就执行逻辑
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// if( key.state == DEVICE_KEY_PRESSED)
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// {
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// //循环执行逻辑（按下）
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// }
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//按住才执行逻辑，松开就停下
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if (key.state == DEVICE_KEY_LONG_PRESS)
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{
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//执行逻辑
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}
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else if (key.state == DEVICE_KEY_RELEASED)
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{
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//停止逻辑
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}
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} |