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 | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 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 fbfd9f6..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"
@@ -23,11 +23,32 @@
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_it.h"
#include "stm32f10x.h"
+#include "beep.h"
+
/* Tick timer count. */
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++;
+
+ if(s_cycle_time >= g_beep_off_time)
+ {
+ 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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