From f82554f50011871059fce97bc4c9b2d26cc4a41d Mon Sep 17 00:00:00 2001
From: fengbh <1953356163@qq.com>
Date: Mon, 15 Jul 2024 03:07:57 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E7=B2=BE=E7=A1=AE=E5=BB=B6?=
 =?UTF-8?q?=E6=97=B6=E5=87=BD=E6=95=B0?=
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---
 include/time0.h | 12 ++++++++++++
 src/main.c      |  8 ++++++++
 src/time0.c     | 45 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 65 insertions(+)
 create mode 100644 include/time0.h
 create mode 100644 src/time0.c

diff --git a/include/time0.h b/include/time0.h
new file mode 100644
index 0000000..5b6cb72
--- /dev/null
+++ b/include/time0.h
@@ -0,0 +1,12 @@
+#ifndef _time0_H
+#define _time0_H
+
+#include "public.h"
+
+extern u16 time0_delay_cnt;
+
+//函数声明
+void time0_init(void);
+void time0_delay1ms(u16 n);
+
+#endif
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 380fa93..b55e7fd 100644
--- a/src/main.c
+++ b/src/main.c
@@ -62,4 +62,12 @@ void uart(void) __interrupt (4) //串口通信中断函数
 		TI = 0;
 		busy = 0;
 	}
+}
+
+void time0(void) __interrupt (1) //定时器0中断函数
+{
+	static u16 i;//定义静态变量i
+	TH0=0XFC;	//给定时器赋初值，定时1ms
+	TL0=0X18;
+	time0_delay_cnt++;//计数器自增					
 }
\ No newline at end of file
diff --git a/src/time0.c b/src/time0.c
new file mode 100644
index 0000000..405b4c1
--- /dev/null
+++ b/src/time0.c
@@ -0,0 +1,45 @@
+/**************************************************************************************
+深圳市普中科技有限公司（PRECHIN 普中）
+技术支持：www.prechin.net
+
+实验名称：定时器0实验
+接线说明：	
+实验现象：下载程序后，D1指示灯间隔1s闪烁
+注意事项：																				  
+***************************************************************************************/
+#include "time0.h"
+
+/*******************************************************************************
+* 函 数 名       : time0_init
+* 函数功能		 : 定时器0中断配置函数，通过设置TH和TL即可确定定时时间
+* 输    入       : 无
+* 输    出    	 : 无
+*******************************************************************************/
+void time0_init(void)
+{
+	TMOD|=0X01;//选择为定时器0模式，工作方式1
+	TH0=0XFC;	//给定时器赋初值，定时1ms
+	TL0=0X18;	
+	ET0=1;//打开定时器0中断允许
+	EA=1;//打开总中断
+	TR0=1;//打开定时器		
+}
+
+/*******************************************************************************
+* 函 数 名      : time0_delay1ms
+* 函数功能      : 定时器精确延时
+* 输    入      : n 延时时间，单位ms
+* 输    出      : 无
+*******************************************************************************/
+u16 time0_delay_cnt=0;
+void time0_delay1ms(u16 n)
+{	
+	while(1)
+	{
+		if(time0_delay_cnt>=n)
+		{
+			time0_delay_cnt=0;
+			break;
+		}
+	}
+}