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标题: 复旦微MCU单片机FM33LG048休眠模式RTthread使用方法记录 [打印本页]

作者: 钢铁侠 时间: 2023-1-13 14:30
标题: 复旦微MCU单片机FM33LG048休眠模式RTthread使用方法记录
鉴于复旦微官方提供的RTThread存在bug，重新修改进行测试，满足项目实际要求
原官方休眠处理如下：
static void sleep(void)
{
rt_tick_t timeout_tick, delta_tick;
rt_uint32_t ret, freq = 32768;
static rt_uint32_t os_tick_remain = 0;

timeout_tick = rt_timer_next_timeout_tick() - rt_tick_get();
if (timeout_tick >= 2)
{
   fm33xx_lptimer_start(freq * timeout_tick / RT_TICK_PER_SECOND);
   DeepSleep();
   ret = fm33xx_lptimer_get_current_tick();

   delta_tick = (ret * RT_TICK_PER_SECOND + os_tick_remain) / freq;

   os_tick_remain += (ret * RT_TICK_PER_SECOND);
   os_tick_remain %= freq;

   fm33xx_lptimer_stop();
   rt_tick_set(rt_tick_get() + delta_tick);
   rt_timer_check();
}
}

修改后如下：

rt_tick_t timeout_tick, delta_tick;
rt_uint32_t ret1, freq = 32768;
void SleepAppHookHandle(void)
{

// rt_tick_t timeout_tick, delta_tick;
// rt_uint32_t ret, freq = 32768;
static rt_uint32_t  os_tick_remain = 0;

timeout_tick = rt_timer_next_timeout_tick() - rt_tick_get();
if ((timeout_tick >= 2))
{
__disable_irq();
CLEAR_BIT(SysTick->CTRL, (rt_uint32_t)SysTick_CTRL_TICKINT_Msk);
BspLpTimerStart(freq * timeout_tick / RT_TICK_PER_SECOND);

SleepAppDeepSleep();

ret1 = BspLpTimerGetCurrentTick();

delta_tick = (ret1 * RT_TICK_PER_SECOND * 10u ) / freq;

if((delta_tick%10u) > 1u)
{
delta_tick = (delta_tick + 10u)/10u;
}
else
{
delta_tick = (delta_tick)/10u;
}
SET_BIT(SysTick->CTRL, (rt_uint32_t)SysTick_CTRL_TICKINT_Msk);
BspLpTimerStop();

rt_tick_set(rt_tick_get() + delta_tick);
rt_timer_check();
   __enable_irq();

}
}

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