From 6094aff6c1c144395a4dbbd87cb576e982b46301 Mon Sep 17 00:00:00 2001
From: fengbh <1953356163@qq.com>
Date: Mon, 15 Jan 2024 20:30:02 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E5=AE=9A=E6=97=B6=E5=99=A8?=
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---
 include/time0.h | 12 +++++++++++
 include/uart.h  |  2 +-
 src/main.c      | 54 ++++++++++++++++++++++++++-----------------------
 src/time0.c     | 26 ++++++++++++++++++++++++
 4 files changed, 68 insertions(+), 26 deletions(-)
 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..cf02ed9
--- /dev/null
+++ b/include/time0.h
@@ -0,0 +1,12 @@
+#ifndef _time0_H
+#define _time0_H
+
+#include "public.h"
+
+//定义LED1管脚
+#define LED1 P2_0
+
+//函数声明
+void time0_init(void);
+
+#endif
\ No newline at end of file
diff --git a/include/uart.h b/include/uart.h
index 85729cc..8aa7952 100644
--- a/include/uart.h
+++ b/include/uart.h
@@ -17,6 +17,6 @@ extern __bit busy;
 void uart_init(u8 baud);
 void send_string(char *s);
 void send_data(u8 dat);
-int putchar(char c);
+int  putchar(char c);
 
 #endif
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 14d449c..06091c0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -13,8 +13,10 @@
 #include "ds18b20.h"
 #include "uart.h"
 #include "stdio.h"
+#include "time0.h"
 
-
+int HH=0, MM=0, SS=0;
+int temp_value=0;
 /*******************************************************************************
 * 函 数 名       : main
 * 函数功能		 : 主函数
@@ -22,16 +24,13 @@
 * 输    出    	 : 无
 *******************************************************************************/
 void main(void)
-{	
-	
+{		
 	u8 i=0;
-   	int pre_temp_value=0;
-	int temp_value=0;
 	u8 temp_buf[5];
-	int HH=0, MM=0, SS=0;
 
 	uart_init(0XFA);//波特率为9600
 	ds18b20_init();//初始化DS18B20
+	time0_init();//定时器0中断配置
 
 	while(1)
 	{				
@@ -54,26 +53,7 @@ void main(void)
 		smg_display(temp_buf,4);
 	
 	// 串口打印
-		// if(pre_temp_value != temp_value){
-		// 	pre_temp_value = temp_value;
 		// 	printf("temp = %.1f\n", temp_value/10.0);
-		// }
-
-	// delay
-		if(temp_value != 0) {
-			SS ++;
-			if (SS == 60){
-				SS = 0;
-				MM ++;
-			}
-			if(MM == 60){
-				MM = 0;
-				HH ++;
-			}
-			delay_ms(1000);
-			printf("%02d:%02d:%02d temp = %.1f\r\n", HH, MM, SS, temp_value/10.0);
-		}
-		
 	}		
 }
 
@@ -94,4 +74,28 @@ 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;
+	i++;
+	if(i==1000)
+	{
+		i=0;
+		LED1=!LED1;	
+
+		SS ++;
+		if (SS == 60){
+			SS = 0;
+			MM ++;
+		}
+		if(MM == 60){
+			MM = 0;
+			HH ++;
+		}
+		printf("%02d:%02d:%02d temp = %.1f\r\n", HH, MM, SS, temp_value/10.0);
+	}						
 }
\ No newline at end of file
diff --git a/src/time0.c b/src/time0.c
new file mode 100644
index 0000000..6368b59
--- /dev/null
+++ b/src/time0.c
@@ -0,0 +1,26 @@
+/**************************************************************************************
+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		
+}