fengbh/uart_temp
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避免在定时中断中打印

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fengbh 2024-01-15 21:03:15 +08:00
parent 265481c1d6
commit 3334d7896c
1 changed files with 7 additions and 4 deletions
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11
src/main.c
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@ -16,7 +16,7 @@
#include "time0.h" #include "time0.h"
int HH=0, MM=0, SS=0; int HH=0, MM=0, SS=0;
int temp_value=0; int send_tmp = 0;
/******************************************************************************* /*******************************************************************************
* 函 数 名 : main * 函 数 名 : main
* 函数功能 : 主函数 * 函数功能 : 主函数
@ -27,6 +27,7 @@ void main(void)
{ {
u8 i=0; u8 i=0;
u8 temp_buf[5]; u8 temp_buf[5];
int temp_value = 0;
uart_init(0XFA);//波特率为9600 uart_init(0XFA);//波特率为9600
ds18b20_init();//初始化DS18B20 ds18b20_init();//初始化DS18B20
@ -53,7 +54,10 @@ void main(void)
smg_display(temp_buf,4); smg_display(temp_buf,4);
// 串口打印 // 串口打印
// printf("temp = %.1f\n", temp_value/10.0); if(send_tmp == 1) {
send_tmp = 0;
printf("%02d:%02d:%02d temp = %.1f\r\n", HH, MM, SS, temp_value/10.0);
}
} }
} }
@ -85,7 +89,7 @@ void time0(void) __interrupt (1) //定时器0中断函数
if(i==1000) if(i==1000)
{ {
i=0; i=0;
LED1=!LED1; send_tmp = 1;
SS ++; SS ++;
if (SS == 60){ if (SS == 60){
@ -96,6 +100,5 @@ void time0(void) __interrupt (1) //定时器0中断函数
MM = 0; MM = 0;
HH ++; HH ++;
} }
printf("%02d:%02d:%02d temp = %.1f\r\n", HH, MM, SS, temp_value/10.0);
} }
} }