gd32f103 RT_THREAD系统挂起和恢复线程，挂起可以，恢复不行

发布于 2019-07-17 16:14:03 浏览：2744 订阅该版

如题，想通过RTTHREAD系统建一个线程，然后将其挂起，延时一段时间后，在将该线程恢复，挂起成功，恢复时，发现一直被空闲线程占用，，恢复不了，有人懂吗
```/*!
    *昆明电器科学研究所*
	*张恩寿*
	mail：2353455346@qq.com
*/

/*
   rtthread 
*/

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

static rt_thread_t led1_thread=RT_NULL;

//static rt_thread_t usart_thread=RT_NULL;

static void led1_thread_entry(void *parameter);

//static void usart_thread_entry(void *parameter);

int main(void)
{
	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;
	}	
	
}

static void led1_thread_entry(void *parameter)
{ 
	rt_err_t uwret=RT_EOK,uwresum=RT_EOK;
	while(1)
	{
		led1=1;
		rt_thread_delay(500);
		rt_kprintf("led1_thread is running,LED1_ON ");
		
		
		led1=0;
		rt_thread_delay(500);
		rt_kprintf("led1_thread is running,LED1_OFF ");
		
		rt_thread_delay(5000);
		
		rt_kprintf("挂起LED1线程！ ");
		uwret=rt_thread_suspend(led1_thread);
		if(uwret==RT_EOK)
		{
			rt_kprintf("挂起LED1线程成功！ ");
		}
		else
		{
			rt_kprintf("挂起LED1线程失败！ ");
		}
		
		rt_thread_delay(5000);

rt_kprintf("恢复LED1线程！ ");
		uwresum=rt_thread_resume(led1_thread);
		if(uwresum==RT_EOK)
		{
			rt_kprintf("恢复LED1线程成功！ ");
		}
		else
		{
			rt_kprintf("恢复LED1线程失败！ ");
		}
		
		rt_thread_delay(5000);
	}

}

```

![图.png](https://oss-club.rt-thread.org/uploads/201907/17/161338hhrvyvsyutcpyvhg.png)