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App/Timer2.c

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+/*
+ * Timer0.c
+ *
+ *  Created on: 2022年03月15日
+ *      Author: User
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include <main.h>
+
+/* Private define-------------------------------------------------------------*/
+
+/* Private variables----------------------------------------------------------*/
+
+/* Private function prototypes------------------------------------------------*/
+static void Timer2_Init(void); //定时器2初始化
+
+/* Public variables-----------------------------------------------------------*/
+Timer2_t Timer2 =
+	{
+		0,
+		Timer2_Init};
+
+/*
+ * @name   Timer0_Init
+ * @brief  定时器0初始化
+ * @param  None
+ * @retval None
+ */
+static void Timer2_Init() // 20毫秒@20.000MHz
+{
+
+	AUXR &= 0xFB; //定时器时钟12T模式
+	T2L = 0xCB;	  //设置定时初始值
+	T2H = 0x7D;	  //设置定时初始值
+	AUXR |= 0x10; //定时器2开始计时
+	IE2 |= 0x04;  //打开定时器2中断
+	EA = 1;
+}
+
+/*
+ * @name   Timer2_isr()
+ * @brief  定时器2中断函数(20ms中断一次)
+ * @param  None
+ * @retval None
+ */
+/***********定时器2中断函数***********/
+void Timer2_isr() interrupt 12
+{
+
+  if (Heating_SET_PIN == HIGH) //判断加热是否使能
+  {
+    PTC_Fan_PIN = HIGH; //加热使能打开风扇
+  } 
+  else
+  {
+    if (++Timer2.Heating_Run_Timer >= TIMER2_20S) 
+	{
+      Timer2.Heating_Run_Timer = 0;
+      if (Heating_SET_PIN != HIGH) 
+	  {
+        PTC_Fan_PIN = LOW; //关闭风扇
+      }
+    }
+  }
+}
+/********************************************************
+  End Of File
+********************************************************/