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https://github.com/espressif/esp-idf.git
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56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
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/*
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* SPDX-FileCopyrightText: 2023 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 "esp_sleep.h"
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#include "sdkconfig.h"
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#include "driver/rtc_io.h"
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#if CONFIG_EXAMPLE_EXT0_WAKEUP
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#if CONFIG_IDF_TARGET_ESP32
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const int ext_wakeup_pin_0 = 25;
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#else
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const int ext_wakeup_pin_0 = 3;
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#endif
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void example_deep_sleep_register_ext0_wakeup(void)
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{
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printf("Enabling EXT0 wakeup on pin GPIO%d\n", ext_wakeup_pin_0);
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ESP_ERROR_CHECK(esp_sleep_enable_ext0_wakeup(ext_wakeup_pin_0, 1));
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// Configure pullup/downs via RTCIO to tie wakeup pins to inactive level during deepsleep.
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// EXT0 resides in the same power domain (RTC_PERIPH) as the RTC IO pullup/downs.
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// No need to keep that power domain explicitly, unlike EXT1.
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ESP_ERROR_CHECK(rtc_gpio_pullup_dis(ext_wakeup_pin_0));
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ESP_ERROR_CHECK(rtc_gpio_pulldown_en(ext_wakeup_pin_0));
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}
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#endif // CONFIG_EXAMPLE_EXT0_WAKEUP
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#if CONFIG_EXAMPLE_EXT1_WAKEUP
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void example_deep_sleep_register_ext1_wakeup(void)
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{
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const int ext_wakeup_pin_1 = 2;
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const uint64_t ext_wakeup_pin_1_mask = 1ULL << ext_wakeup_pin_1;
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const int ext_wakeup_pin_2 = 4;
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const uint64_t ext_wakeup_pin_2_mask = 1ULL << ext_wakeup_pin_2;
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printf("Enabling EXT1 wakeup on pins GPIO%d, GPIO%d\n", ext_wakeup_pin_1, ext_wakeup_pin_2);
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ESP_ERROR_CHECK(esp_sleep_enable_ext1_wakeup(ext_wakeup_pin_1_mask | ext_wakeup_pin_2_mask, ESP_EXT1_WAKEUP_ANY_HIGH));
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/* If there are no external pull-up/downs, tie wakeup pins to inactive level with internal pull-up/downs via RTC IO
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* during deepsleep. However, RTC IO relies on the RTC_PERIPH power domain. Keeping this power domain on will
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* increase some power comsumption. */
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#if CONFIG_EXAMPLE_EXT1_USE_INTERNAL_PULLUPS
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ESP_ERROR_CHECK(esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON));
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ESP_ERROR_CHECK(rtc_gpio_pullup_dis(ext_wakeup_pin_1));
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ESP_ERROR_CHECK(rtc_gpio_pulldown_en(ext_wakeup_pin_1));
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ESP_ERROR_CHECK(rtc_gpio_pullup_dis(ext_wakeup_pin_2));
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ESP_ERROR_CHECK(rtc_gpio_pulldown_en(ext_wakeup_pin_2));
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#endif //CONFIG_EXAMPLE_EXT1_USE_INTERNAL_PULLUPS
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}
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#endif // CONFIG_EXAMPLE_EXT1_WAKEUP
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