commit ddc5aa6aace0ed05ae78f613e1d6c928a5fcc649
Author: lhye200 <lhye20507@outlook.com>
Date:   Sat May 3 12:53:40 2025 +0000

    添加 button/button.c

diff --git a/button/button.c b/button/button.c
new file mode 100644
index 0000000..7ee7520
--- /dev/null
+++ b/button/button.c
@@ -0,0 +1,62 @@
+// 文件编码: GB18030
+/*
+ * button.c
+ *
+ *  Created on: 2025年4月19日
+ *      Author: LHYe200
+ */
+
+
+#include "button.h"
+
+gpio_pin_enum BUTTON_PIN[BUTTON_PIN_NUM] = BUTTON_PINS;
+uint8 button_state[BUTTON_PIN_NUM]; // 按键状态
+uint16 button_last_time[BUTTON_PIN_NUM]; // 持续按下时间
+
+void Button_Init(void)
+{
+    for(int i = 0; i < BUTTON_PIN_NUM; i++)
+    {
+        gpio_init(BUTTON_PIN[i], GPI, GPIO_LOW, GPI_PULL_UP); // 按键引脚初始化为输入模式，默认拉高
+    }
+    memset(button_state, 0, sizeof(button_state)); // 清除按键状态
+    memset(button_last_time, 0, sizeof(button_last_time)); // 清除上一次按键状态
+}
+
+void Button_Scan()
+{
+    for(int i = 0; i < BUTTON_PIN_NUM; i++)
+    {
+        if(gpio_get_level(BUTTON_PIN[i]) == GPIO_LOW) // 按键按下
+        {
+            button_last_time[i] += BUTTON_SCAN_TIME; // 持续按下时间增加
+        }
+        else // 按键松开
+        {
+            button_last_time[i] = 0; // 持续按下时间清零
+        }
+        if(button_last_time[i] >= BUTTON_LONG_PRESS_TIME) // 长按
+        {
+            button_state[i] = BUTTON_LONG_PRESS; // 设置为长按状态
+        }
+        else if(button_last_time[i] >= BUTTON_SHORT_PRESS_TIME) // 短按
+        {
+            button_state[i] = BUTTON_SHORT_PRESS; // 设置为短按状态
+        }
+        else // 未按下
+        {
+            button_state[i] = BUTTON_RELEASE; // 设置为未按下状态
+        }
+    }
+}
+
+uint8 Button_Get_State(uint8 button_num)
+{
+    if(button_num >= BUTTON_PIN_NUM) // 按键编号越界
+    {
+        return -1; // 返回错误
+    }
+    return button_state[button_num]; // 返回按键状态
+}
+
+