Вот фрагмент кода, который выполняется при вызове задержки. /**
* This function will let current thread sleep for some ticks.
*
* @param tick the sleep ticks
*
* @return RT_EOK
*/
rt_err_t rt_thread_sleep(rt_tick_t tick)
{
register rt_base_t temp;
struct rt_thread *thread;
/* disable interrupt */
temp = rt_hw_interrupt_disable();
/* set to current thread */
thread = rt_current_thread;
RT_ASSERT(thread != RT_NULL);
RT_ASSERT(rt_object_get_type((rt_object_t)thread) == RT_Object_Class_Thread);
/* suspend thread */
rt_thread_suspend(thread);
/* reset the timeout of thread timer and start it */
rt_timer_control(&(thread->thread_timer), RT_TIMER_CTRL_SET_TIME, &tick);
rt_timer_start(&(thread->thread_timer));
/* enable interrupt */
rt_hw_interrupt_enable(temp);
rt_schedule();
/* clear error number of this thread to RT_EOK */
if (thread->error == -RT_ETIMEOUT)
thread->error = RT_EOK;
return RT_EOK;
}
При переключении задачи запрещает прерывания, если я всё верно понял.
Dingo (21.11.2022 05:45, просмотров: 168) ответил Dingo на Есть легковесная версия RT-Thread Nano: It has a very small size and refined hard real-time kernel, and
which requires only 3 KB of ROM and 1.2 KB of RAM.