删除冗余，修复时钟溢出

htl5241 · htl5241 · commit 7327fb95ef3b · 2025-05-25T12:03:46.000+08:00
diff --git a/src/timer.c b/src/timer.c
@@ -494,8 +494,6 @@ static void _timer_check(rt_list_t *timer_list, struct rt_spinlock *lock)
 
     level = rt_spin_lock_irqsave(lock);
 
-    current_tick = rt_tick_get();
-
     rt_list_init(&list);
 
     while (!rt_list_isempty(&timer_list[RT_TIMER_SKIP_LIST_LEVEL - 1]))
@@ -762,7 +760,7 @@ void rt_timer_check(void)
     rt_tick_t next_timeout;
 
     ret = _timer_list_next_timeout(_soft_timer_list, &next_timeout);
-    if ((ret == RT_EOK) && (next_timeout <= rt_tick_get()))
+    if ((ret == RT_EOK) && ((rt_tick_get() - next_timeout) < RT_TICK_MAX / 2))
     {
         rt_sem_release(&_soft_timer_sem);
     }

Original file line number	Diff line number	Diff line change
`@@ -494,8 +494,6 @@ static void _timer_check(rt_list_t timer_list, struct rt_spinlock lock)`
`494`	`494`
`495`	`495`	`level = rt_spin_lock_irqsave(lock);`
`496`	`496`
`497`		`- current_tick = rt_tick_get();`
`498`		`-`
`499`	`497`	`rt_list_init(&list);`
`500`	`498`
`501`	`499`	`while (!rt_list_isempty(&timer_list[RT_TIMER_SKIP_LIST_LEVEL - 1]))`
`@@ -762,7 +760,7 @@ void rt_timer_check(void)`
`762`	`760`	`rt_tick_t next_timeout;`
`763`	`761`
`764`	`762`	`ret = _timer_list_next_timeout(_soft_timer_list, &next_timeout);`
`765`		`- if ((ret == RT_EOK) && (next_timeout <= rt_tick_get()))`
	`763`	`+ if ((ret == RT_EOK) && ((rt_tick_get() - next_timeout) < RT_TICK_MAX / 2))`
`766`	`764`	`{`
`767`	`765`	`rt_sem_release(&_soft_timer_sem);`
`768`	`766`	`}`