关于STM32F103的【rt_hw_hard_fault_exception】故障的定位

发布于 2019-10-04 16:46:53 浏览：2936 订阅该版

8 个回答

ding 2019-10-04

这家伙很懒，什么也没写！

ding 2019-10-04

这家伙很懒，什么也没写！

ding 2019-10-04

这家伙很懒，什么也没写！

Nanne 2019-10-04

这家伙很懒，什么也没写！

Nanne 2019-10-04

这家伙很懒，什么也没写！

Nanne 2019-10-05

这家伙很懒，什么也没写！

这句话怎么理解？我在判断条件内部设置了断点，发现程序死的时候，进入了该判断条件。正常运行的时候是不进入的。执行完这个函数后，就进入hard fault了。

```c
if ((thread->stat & RT_THREAD_STAT_MASK) == RT_THREAD_READY &&
        thread->tlist.next != thread->tlist.prev)
```

完整函数：

```c
/**
 * This function will let current thread yield processor, and scheduler will
 * choose a highest thread to run. After yield processor, the current thread
 * is still in READY state.
 *
 * @return RT_EOK
 */
rt_err_t rt_thread_yield(void)
{
    register rt_base_t level;
    struct rt_thread *thread;

/* disable interrupt */
    level = rt_hw_interrupt_disable();

/* set to current thread */
    thread = rt_current_thread;

/* if the thread stat is READY and on ready queue list */
**    if ((thread->stat & RT_THREAD_STAT_MASK) == RT_THREAD_READY &&**
**        thread->tlist.next != thread->tlist.prev)**
    {
        /* remove thread from thread list */
        rt_list_remove(&(thread->tlist));

/* put thread to end of ready queue */
        rt_list_insert_before(&(rt_thread_priority_table[thread->current_priority]),
                              &(thread->tlist));

/* enable interrupt */
        rt_hw_interrupt_enable(level);

rt_schedule();

return RT_EOK;
    }

/* enable interrupt */
    rt_hw_interrupt_enable(level);

return RT_EOK;
}
RTM_EXPORT(rt_thread_yield);
```