小白提问：请问运行野火RTT线程管理例程为何串口一直输出挂起线程失败

发布于 2022-04-27 13:49:59 浏览：518 订阅该版

最近刚刚学习了RTT，一边看野火的教程一边输入代码，在线程管理这一块出现了一些问题：
我用的是RTT Nano最新的包，将例程输入好编译的时候发现rt_thread_create函数未定义，发现是RT_USING_HEAP未定义，我在reconfig.h中恢复了对RT_USING_HEAP的定义后编译无误，烧入野火的开发板后按下按钮，串口总是输出“挂起LED1线程失败”或是“恢复LED1线程失败”，想来请问一下各位大家这是啥问题，谢谢！
下面附上main函数代码：```

```
	
#include "board.h"
#include "rtthread.h"

/*定义线程栈*/
//ALIGN(RT_ALIGN_SIZE)//字节对齐
//static rt_uint8_t rt_led1_thread_stack[1024];

/*定义线程控制块*/
static rt_thread_t led1_thread = RT_NULL;
static rt_thread_t key_thread = RT_NULL;

/*定义函数*/
static void led1_thread_entry(void *parameter);
static void key_thread_entry(void *parameter);

int main(void)
{	
	rt_kprintf("线程管理实验\n");
	rt_kprintf("按下 K1 挂起线程，按下 K2 恢复线程\n");
	
	led1_thread = rt_thread_create(
	                "led1",
	                led1_thread_entry,
	                RT_NULL,
	                512,
									3,
									20
	
	);
									
	if(led1_thread != RT_NULL)
		rt_thread_startup (led1_thread);
	else
		return -1;
	
	key_thread = rt_thread_create(
	                "key",
	                key_thread_entry,
	                RT_NULL,
	                512,
									3,
									20
	
	);
	if(key_thread != RT_NULL)
		rt_thread_startup (key_thread);
	else
		return -1;
	
}

static void led1_thread_entry(void *parameter)
{
  while(1)
	{		
	LED1_ON;
	rt_thread_delay(500);
		rt_kprintf("led1_thread running,LED1_ON\r\n");
		
		
	LED1_OFF;
	rt_thread_delay(500);
		rt_kprintf("led1_thread running,LED2_ON\r\n");
	}
}

static void key_thread_entry(void *parameter)
{
   rt_err_t uwRet=RT_EOK;
	 while(1)
	 {
	     if(Key_Scan(KEY1_GPIO_PORT,KEY1_GPIO_PIN)==KEY_ON)
			 {
			    rt_kprintf("挂起 LED1 线程\n");
				  uwRet = rt_thread_suspend(led1_thread);
			 
			   if(RT_EOK == uwRet)
			   {
			      rt_kprintf("挂起 LED1 线程成功！\n");
			   }
			   else
			   {   
				    rt_kprintf("挂起 LED1 线程失败！\n");
			   }
			 }
			 
			 if(Key_Scan(KEY2_GPIO_PORT,KEY2_GPIO_PIN)==KEY_ON)
			 {
			    rt_kprintf("恢复 LED1 线程\n");
				  uwRet = rt_thread_suspend(led1_thread);
			 
			   if(RT_EOK == uwRet)
			   {
			      rt_kprintf("恢复 LED1 线程成功！\n");
			   }
			   else
			   {   
				    rt_kprintf("恢复 LED1 线程失败！\n");
			   }
			 }
        rt_thread_delay(20);			 
	 }
}

/*********************************************END OF FILE**********************/

```