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rt-thread-official
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Merge remote-tracking branch 'rtt_gitee/gitee_master'

This commit is contained in:
rtthread-bot 2021-06-16 09:32:46 +00:00
parent c3afd9cc23 45b540d334
commit 1e7dfa694f
2 changed files with 25 additions and 8 deletions
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32
bsp/stm32/libraries/HAL_Drivers/drv_common.c
View File

@ -113,16 +113,32 @@ void _Error_Handler(char *s, int num)
*/
void rt_hw_us_delay(rt_uint32_t us)
{
rt_uint32_t start, now, delta, reload, us_tick;
start = SysTick->VAL;
reload = SysTick->LOAD;
us_tick = SystemCoreClock / 1000000UL;
do
rt_uint32_t ticks;
rt_uint32_t told, tnow, tcnt = 0;
rt_uint32_t reload = SysTick->LOAD;
ticks = us * reload / (1000000 / RT_TICK_PER_SECOND);
told = SysTick->VAL;
while (1)
{
now = SysTick->VAL;
delta = start >= now ? start - now : reload + start - now;
tnow = SysTick->VAL;
if (tnow != told)
{
if (tnow < told)
{
tcnt += told - tnow;
}
else
{
tcnt += reload - tnow + told;
}
told = tnow;
if (tcnt >= ticks)
{
break;
}
}
}
while (delta < us_tick * us);
}
/**

1
components/drivers/include/ipc/workqueue.h
View File

@ -64,6 +64,7 @@ rt_err_t rt_workqueue_submit_work(struct rt_workqueue *queue, struct rt_work *wo
rt_err_t rt_workqueue_cancel_work(struct rt_workqueue *queue, struct rt_work *work);
rt_err_t rt_workqueue_cancel_work_sync(struct rt_workqueue *queue, struct rt_work *work);
rt_err_t rt_workqueue_cancel_all_work(struct rt_workqueue *queue);
rt_err_t rt_workqueue_critical_work(struct rt_workqueue *queue, struct rt_work *work);
#ifdef RT_USING_SYSTEM_WORKQUEUE
rt_err_t rt_work_submit(struct rt_work *work, rt_tick_t time);