static void _sleep_entry(void)
{
rt_tick_t timeout;
rt_uint32_t ms;
rt_uint32_t count;
system_set_sleepmode(SYSTEM_SLEEPMODE_STANDBY);
timeout = rt_timer_next_timeout_tick() - rt_tick_get();
ms = timeout * (1000 / RT_TICK_PER_SECOND);
rt_kprintf("os tick:%u entry sleep:%u tick\r\n", rt_tick_get(), timeout);
_rtc_timer_start(ms);
system_sleep();
rt_enter_critical();
count = rtc_count_get_count(&rtc_instance);
ms = (count + 32) / 32.768;
rtc_count_disable(&rtc_instance);
sleep_tick_adjust(ms);
timeout = rt_tick_get();
rt_exit_critical();
rt_kprintf("sleep exited, os tick:%u\n", timeout);
}
/** Reads the RTC value
*
* Reads and return the current time in RTC
* @param[void] void
* @return the current value in RTC
*/
time_t rtc_read(void)
{
if (!rtc_inited) {
/* Return invalid time for now! */
return 0;
}
return (time_t)rtc_count_get_count(&rtc_instance);
}
/*---------------------------------------------------------------------------*/
rtimer_clock_t
rtimer_arch_now(void)
{
return rtc_count_get_count(&rtc_instance);
}
