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feat(example): support esp32p4 VBAT under volt wakeup in deepsleep example

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wuzhenghui
2025-03-05 15:22:59 +08:00
parent 9b5944b795
commit e3383f08e6
10 changed files with 239 additions and 0 deletions
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77
examples/lowpower/vbat/main/vbat_example_main.c Normal file
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/*
* SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
#include <stdio.h>
#include <time.h>
#include "sdkconfig.h"
#include "soc/soc_caps.h"
#include "esp_vbat.h"
#include "esp_pm.h"
#include "esp_rtc_time.h"
#include "esp_sleep.h"
void app_main(void)
{
#if CONFIG_EXAMPLE_WAITING_BATTERY_CHARGING_IN_LIGHT_SLEEP
esp_pm_config_t pm_config = {
.max_freq_mhz = CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ,
.min_freq_mhz = CONFIG_XTAL_FREQ,
.light_sleep_enable = true
};
ESP_ERROR_CHECK(esp_pm_configure(&pm_config));
#endif
if (esp_sleep_get_wakeup_cause() == ESP_SLEEP_WAKEUP_VBAT_UNDER_VOLT) {
#if CONFIG_ESP_VBAT_USE_RECHARGEABLE_BATTERY
printf("Wake up from VBAT low power\n");
#else
printf("Wake up from VBAT brownout\n");
#endif
} else if (esp_sleep_get_wakeup_cause() == ESP_SLEEP_WAKEUP_TIMER) {
printf("Wake up from Timer\n");
} else {
printf("Not a deep sleep reset\n");
}
esp_err_t sleep_result;
do {
#if CONFIG_ESP_VBAT_USE_RECHARGEABLE_BATTERY
if (esp_vbat_get_battery_state() == ESP_VBAT_STATE_CHARGING) {
#if CONFIG_EXAMPLE_WAITING_BATTERY_CHARGING_IN_DEEP_SLEEP
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);
esp_sleep_enable_timer_wakeup(CONFIG_EXAMPLE_VBAT_CHARGING_DONE_CHECK_PERIOD * 1000 * 1000);
#else
printf("Battery is low, waiting for charging to complete before going to deep sleep!\n");
do {
// Task will enter block state in `esp_vbat_wait_battery_charge_done`, staying in active state or
// entering lightsleep is determined by esp_pm configuration.
if (esp_vbat_wait_battery_charge_done(CONFIG_EXAMPLE_VBAT_CHARGING_DONE_CHECK_PERIOD * 1000 / portTICK_PERIOD_MS) == ESP_OK) {
printf("Battery charging done!\n");
break;
}
} while (1);
#endif
}
#else
if (esp_vbat_get_battery_state() == ESP_VBAT_STATE_LOWBATTERY) {
printf("Battery is low, VBAT power will not be used during deep sleep!\n");
}
#endif
#if CONFIG_EXAMPLE_WAITING_BATTERY_CHARGING_IN_LIGHT_SLEEP
// Disable auto-lightsleep configured timer wakeup source here.
pm_config.light_sleep_enable = false;
ESP_ERROR_CHECK(esp_pm_configure(&pm_config));
#endif
// enter deep sleep
printf("Current RTC Time: %lld (us)\n", esp_rtc_get_time_us());
printf("Entering deep sleep\n");
sleep_result = esp_deep_sleep_try_to_start();
vTaskDelay(1000 / portTICK_PERIOD_MS);
printf("Failed to enter deepsleep, please check wakeup source setting and state!\n");
} while (sleep_result != ESP_OK);
}