mirror of
https://github.com/espressif/esp-idf.git
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82 lines
3.0 KiB
C
82 lines
3.0 KiB
C
/*
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* SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Unlicense OR CC0-1.0
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*/
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#include <stdio.h>
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#include <time.h>
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#include "sdkconfig.h"
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#include "soc/soc_caps.h"
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#include "esp_vbat.h"
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#include "esp_pm.h"
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#include "esp_rtc_time.h"
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#include "esp_sleep.h"
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void app_main(void)
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{
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#if CONFIG_EXAMPLE_WAITING_BATTERY_CHARGING_IN_LIGHT_SLEEP
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esp_pm_config_t pm_config = {
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.max_freq_mhz = CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ,
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.min_freq_mhz = CONFIG_XTAL_FREQ,
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.light_sleep_enable = true
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};
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ESP_ERROR_CHECK(esp_pm_configure(&pm_config));
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#endif
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uint32_t causes = esp_sleep_get_wakeup_causes();
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if (causes & BIT(ESP_SLEEP_WAKEUP_UNDEFINED)) {
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printf("Not a deep sleep reset\n");
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} else {
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if (causes & BIT(ESP_SLEEP_WAKEUP_VBAT_UNDER_VOLT)) {
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#if CONFIG_ESP_VBAT_USE_RECHARGEABLE_BATTERY
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printf("Wake up from VBAT low power\n");
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#else
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printf("Wake up from VBAT brownout\n");
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#endif
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}
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if (causes & BIT(ESP_SLEEP_WAKEUP_TIMER)) {
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printf("Wake up from Timer\n");
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}
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}
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esp_err_t sleep_result;
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do {
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#if CONFIG_ESP_VBAT_USE_RECHARGEABLE_BATTERY
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if (esp_vbat_get_battery_state() == ESP_VBAT_STATE_CHARGING) {
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#if CONFIG_EXAMPLE_WAITING_BATTERY_CHARGING_IN_DEEP_SLEEP
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printf("Battery is charging, wake up the chip every %d seconds to check whether the battery is charged done !\n", CONFIG_EXAMPLE_VBAT_CHARGING_DONE_CHECK_PERIOD);
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esp_sleep_enable_timer_wakeup(CONFIG_EXAMPLE_VBAT_CHARGING_DONE_CHECK_PERIOD * 1000 * 1000);
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#else
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printf("Battery is low, waiting for charging to complete before going to deep sleep!\n");
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do {
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// Task will enter block state in `esp_vbat_wait_battery_charge_done`, staying in active state or
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// entering lightsleep is determined by esp_pm configuration.
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if (esp_vbat_wait_battery_charge_done(CONFIG_EXAMPLE_VBAT_CHARGING_DONE_CHECK_PERIOD * 1000 / portTICK_PERIOD_MS) == ESP_OK) {
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printf("Battery charging done!\n");
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break;
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}
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} while (1);
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#endif
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}
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#else
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if (esp_vbat_get_battery_state() == ESP_VBAT_STATE_LOWBATTERY) {
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printf("Battery is low, VBAT power will not be used during deep sleep!\n");
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}
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#endif
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#if CONFIG_EXAMPLE_WAITING_BATTERY_CHARGING_IN_LIGHT_SLEEP
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// Disable auto-lightsleep configured timer wakeup source here.
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pm_config.light_sleep_enable = false;
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ESP_ERROR_CHECK(esp_pm_configure(&pm_config));
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#endif
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// enter deep sleep
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printf("Current RTC Time: %lld (us)\n", esp_rtc_get_time_us());
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printf("Entering deep sleep\n");
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sleep_result = esp_deep_sleep_try_to_start();
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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printf("Failed to enter deepsleep, please check wakeup source setting and state!\n");
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} while (sleep_result != ESP_OK);
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}
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