STATIC mp_obj_t machine_deepsleep(void) { // default to sleep forever uint32_t sleep_us = 0; // see if RTC.ALARM0 should wake the device if (pyb_rtc_alarm0_wake & MACHINE_WAKE_DEEPSLEEP) { uint64_t t = pyb_rtc_get_us_since_2000(); if (pyb_rtc_alarm0_expiry <= t) { sleep_us = 1; // alarm already expired so wake immediately } else { uint64_t delta = pyb_rtc_alarm0_expiry - t; if (delta <= 0xffffffff) { // sleep for the desired time sleep_us = delta; } else { // overflow, just set to maximum sleep time sleep_us = 0xffffffff; } } } // prepare for RTC reset at wake up rtc_prepare_deepsleep(sleep_us); // put the device in a deep-sleep state system_deep_sleep_set_option(0); // default power down mode; TODO check this system_deep_sleep(sleep_us); for (;;) { // we must not return ets_loop_iter(); } return mp_const_none; }
STATIC mp_obj_t esp_deepsleep(mp_uint_t n_args, const mp_obj_t *args) { uint32_t sleep_us = n_args > 0 ? mp_obj_get_int(args[0]) : 0; // prepare for RTC reset at wake up rtc_prepare_deepsleep(sleep_us); system_deep_sleep_set_option(n_args > 1 ? mp_obj_get_int(args[1]) : 0); system_deep_sleep(sleep_us); return mp_const_none; }