From 41776246aed24b42e1d05da230f6f114e02c87b6 Mon Sep 17 00:00:00 2001
From: guanjiao <sqrgj@163.com>
Date: 星期日, 27 五月 2018 17:39:52 +0800
Subject: [PATCH] 增加低通滤波与渐进报警功能

---
 源码/核心板/Src/stm32f10x_it.c |   31 +++++++++++++++++++++++--------
 1 files changed, 23 insertions(+), 8 deletions(-)

diff --git "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/stm32f10x_it.c" "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/stm32f10x_it.c"
index ddb1ab7..14ddeec 100644
--- "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/stm32f10x_it.c"
+++ "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/stm32f10x_it.c"
@@ -1,11 +1,11 @@
 /**
   ******************************************************************************
-  * @file    Project/STM32F10x_StdPeriph_Template/stm32f10x_it.c 
+  * @file    Project/STM32F10x_StdPeriph_Template/stm32f10x_it.c
   * @author  MCD Application Team
   * @version V3.4.0
   * @date    10/15/2010
   * @brief   Main Interrupt Service Routines.
-  *          This file provides template for all exceptions handler and 
+  *          This file provides template for all exceptions handler and
   *          peripherals interrupt service routine.
   ******************************************************************************
   * @copy
@@ -18,22 +18,37 @@
   * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
   *
   * <h2><center>&copy; COPYRIGHT 2010 STMicroelectronics</center></h2>
-  */ 
+  */
 
 /* Includes ------------------------------------------------------------------*/
 #include "stm32f10x_it.h"
 #include "stm32f10x.h"
+#include "beep.h"
+
 /* Tick timer count. */
-volatile unsigned long time32_incr;
-volatile unsigned long time32_reset = 0;
+volatile uint32_t time32_incr;
+
+volatile uint32_t g_beep_on_time = 0;
+volatile uint32_t g_beep_off_time = 0;
+
 void SysTick_Handler(void)
 {
+	static uint32_t s_cycle_time = 0;
     time32_incr++;
-		time32_reset++;
-	if(time32_reset>10000)
+	
+	if(s_cycle_time >= g_beep_off_time)
 	{
-		NVIC_SystemReset();
+		s_cycle_time = 0;
 	}
+	else if(s_cycle_time > g_beep_on_time && s_cycle_time < g_beep_off_time)
+	{
+		BEEP_OFF;
+	}
+	else if(s_cycle_time <= g_beep_on_time)
+	{
+		BEEP_ON;
+	}
+	s_cycle_time++;
 }
 
 /******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/

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