deep_sleep sample
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Outline
#include <stdio.h>
#include "esp_sleep.h"
#include "sdkconfig.h"
#include "driver/rtc_io.h"
example_deep_sleep_register_ext1_wakeup()
Files
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SourceVuESP-IDF Framework and Examplesdeep_sleep samplemain/ext_wakeup.c
 
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/* * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Unlicense OR CC0-1.0 *//* ... */ #include <stdio.h> #include "esp_sleep.h" #include "sdkconfig.h" #include "driver/rtc_io.h" #if CONFIG_EXAMPLE_EXT0_WAKEUP #if CONFIG_IDF_TARGET_ESP32 const int ext_wakeup_pin_0 = 25; #else const int ext_wakeup_pin_0 = 3; #endif void example_deep_sleep_register_ext0_wakeup(void) { printf("Enabling EXT0 wakeup on pin GPIO%d\n", ext_wakeup_pin_0); ESP_ERROR_CHECK(esp_sleep_enable_ext0_wakeup(ext_wakeup_pin_0, 1)); // Configure pullup/downs via RTCIO to tie wakeup pins to inactive level during deepsleep. // EXT0 resides in the same power domain (RTC_PERIPH) as the RTC IO pullup/downs. // No need to keep that power domain explicitly, unlike EXT1. ESP_ERROR_CHECK(rtc_gpio_pullup_dis(ext_wakeup_pin_0)); ESP_ERROR_CHECK(rtc_gpio_pulldown_en(ext_wakeup_pin_0)); }{...} /* ... */#endif // CONFIG_EXAMPLE_EXT0_WAKEUP #if CONFIG_EXAMPLE_EXT1_WAKEUP void example_deep_sleep_register_ext1_wakeup(void) { const int ext_wakeup_pin_1 = CONFIG_EXAMPLE_EXT1_WAKEUP_PIN_1; const int ext_wakeup_pin_2 = CONFIG_EXAMPLE_EXT1_WAKEUP_PIN_2; const uint64_t ext_wakeup_pin_1_mask = 1ULL << ext_wakeup_pin_1; const uint64_t ext_wakeup_pin_2_mask = 1ULL << ext_wakeup_pin_2; printf("Enabling EXT1 wakeup on pins GPIO%d, GPIO%d\n", ext_wakeup_pin_1, ext_wakeup_pin_2); #if SOC_PM_SUPPORT_EXT1_WAKEUP_MODE_PER_PIN ESP_ERROR_CHECK(esp_sleep_enable_ext1_wakeup_io(ext_wakeup_pin_1_mask, CONFIG_EXAMPLE_EXT1_WAKEUP_MODE_PIN_1)); ESP_ERROR_CHECK(esp_sleep_enable_ext1_wakeup_io(ext_wakeup_pin_2_mask, CONFIG_EXAMPLE_EXT1_WAKEUP_MODE_PIN_2));/* ... */ #else ESP_ERROR_CHECK(esp_sleep_enable_ext1_wakeup_io(ext_wakeup_pin_1_mask | ext_wakeup_pin_2_mask, CONFIG_EXAMPLE_EXT1_WAKEUP_MODE)); #endif /* If there are no external pull-up/downs, tie wakeup pins to inactive level with internal pull-up/downs via RTC IO * during deepsleep. However, RTC IO relies on the RTC_PERIPH power domain. Keeping this power domain on will * increase some power comsumption. However, if we turn off the RTC_PERIPH domain or if certain chips lack the RTC_PERIPH * domain, we will use the HOLD feature to maintain the pull-up and pull-down on the pins during sleep.*//* ... */ #if CONFIG_EXAMPLE_EXT1_USE_INTERNAL_PULLUPS #if SOC_RTCIO_INPUT_OUTPUT_SUPPORTED #if SOC_PM_SUPPORT_EXT1_WAKEUP_MODE_PER_PIN if (CONFIG_EXAMPLE_EXT1_WAKEUP_MODE_PIN_1) { ESP_ERROR_CHECK(rtc_gpio_pullup_dis(ext_wakeup_pin_1)); ESP_ERROR_CHECK(rtc_gpio_pulldown_en(ext_wakeup_pin_1)); }{...} else { ESP_ERROR_CHECK(rtc_gpio_pulldown_dis(ext_wakeup_pin_1)); ESP_ERROR_CHECK(rtc_gpio_pullup_en(ext_wakeup_pin_1)); }{...} if (CONFIG_EXAMPLE_EXT1_WAKEUP_MODE_PIN_2) { ESP_ERROR_CHECK(rtc_gpio_pullup_dis(ext_wakeup_pin_2)); ESP_ERROR_CHECK(rtc_gpio_pulldown_en(ext_wakeup_pin_2)); }{...} else { ESP_ERROR_CHECK(rtc_gpio_pulldown_dis(ext_wakeup_pin_2)); ESP_ERROR_CHECK(rtc_gpio_pullup_en(ext_wakeup_pin_2)); }{...} #else/* ... */ // !SOC_PM_SUPPORT_EXT1_WAKEUP_MODE_PER_PIN if (CONFIG_EXAMPLE_EXT1_WAKEUP_MODE) { ESP_ERROR_CHECK(rtc_gpio_pullup_dis(ext_wakeup_pin_1)); ESP_ERROR_CHECK(rtc_gpio_pulldown_en(ext_wakeup_pin_1)); ESP_ERROR_CHECK(rtc_gpio_pullup_dis(ext_wakeup_pin_2)); ESP_ERROR_CHECK(rtc_gpio_pulldown_en(ext_wakeup_pin_2)); }{...} else { ESP_ERROR_CHECK(rtc_gpio_pulldown_dis(ext_wakeup_pin_1)); ESP_ERROR_CHECK(rtc_gpio_pullup_en(ext_wakeup_pin_1)); ESP_ERROR_CHECK(rtc_gpio_pulldown_dis(ext_wakeup_pin_2)); ESP_ERROR_CHECK(rtc_gpio_pullup_en(ext_wakeup_pin_2)); }{...} #endif/* ... */ /* ... */#else // ! SOC_RTCIO_INPUT_OUTPUT_SUPPORTED #if SOC_PM_SUPPORT_EXT1_WAKEUP_MODE_PER_PIN if (CONFIG_EXAMPLE_EXT1_WAKEUP_MODE_PIN_1) { gpio_pullup_dis(ext_wakeup_pin_1); gpio_pulldown_en(ext_wakeup_pin_1); }{...} else { gpio_pulldown_dis(ext_wakeup_pin_1); gpio_pullup_en(ext_wakeup_pin_1); }{...} if (CONFIG_EXAMPLE_EXT1_WAKEUP_MODE_PIN_2) { gpio_pullup_dis(ext_wakeup_pin_2); gpio_pulldown_en(ext_wakeup_pin_2); }{...} else { gpio_pulldown_dis(ext_wakeup_pin_2); gpio_pullup_en(ext_wakeup_pin_2); }{...} #else/* ... */ if (CONFIG_EXAMPLE_EXT1_WAKEUP_MODE) { ESP_ERROR_CHECK(gpio_pullup_dis(ext_wakeup_pin_1)); ESP_ERROR_CHECK(gpio_pulldown_en(ext_wakeup_pin_1)); ESP_ERROR_CHECK(gpio_pullup_dis(ext_wakeup_pin_2)); ESP_ERROR_CHECK(gpio_pulldown_en(ext_wakeup_pin_2)); }{...} else { ESP_ERROR_CHECK(gpio_pulldown_dis(ext_wakeup_pin_1)); ESP_ERROR_CHECK(gpio_pullup_en(ext_wakeup_pin_1)); ESP_ERROR_CHECK(gpio_pulldown_dis(ext_wakeup_pin_2)); ESP_ERROR_CHECK(gpio_pullup_en(ext_wakeup_pin_2)); }{...} #endif/* ... */ /* ... */#endif/* ... */ #endif // CONFIG_EXAMPLE_EXT1_USE_INTERNAL_PULLUPS }{ ... } /* ... */#endif // CONFIG_EXAMPLE_EXT1_WAKEUP
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