kopia lustrzana https://github.com/raspberrypi/pico-playground
77 wiersze
1.5 KiB
C
77 wiersze
1.5 KiB
C
/**
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* Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <stdio.h>
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#include "pico/stdlib.h"
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#include "pico/sleep.h"
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#include "hardware/rtc.h"
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static bool awake;
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static void sleep_callback(void) {
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printf("RTC woke us up\n");
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awake = true;
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}
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static void rtc_sleep(void) {
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// Start on Friday 5th of June 2020 15:45:00
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datetime_t t = {
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.year = 2020,
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.month = 06,
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.day = 05,
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.dotw = 5, // 0 is Sunday, so 5 is Friday
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.hour = 15,
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.min = 45,
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.sec = 00
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};
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// Alarm 30 seconds later
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datetime_t t_alarm = {
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.year = 2020,
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.month = 06,
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.day = 05,
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.dotw = 5, // 0 is Sunday, so 5 is Friday
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.hour = 15,
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.min = 45,
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.sec = 10
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};
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// Start the RTC
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rtc_init();
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rtc_set_datetime(&t);
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printf("Sleeping for 10 seconds\n");
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uart_default_tx_wait_blocking();
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sleep_goto_sleep_until(&t_alarm, &sleep_callback);
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}
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int main() {
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stdio_init_all();
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printf("Hello Sleep!\n");
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printf("Switching to XOSC\n");
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// Wait for the fifo to be drained so we get reliable output
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uart_default_tx_wait_blocking();
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// UART will be reconfigured by sleep_run_from_xosc
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sleep_run_from_xosc();
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printf("Switched to XOSC\n");
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awake = false;
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rtc_sleep();
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// Make sure we don't wake
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while (!awake) {
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printf("Should be sleeping\n");
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}
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return 0;
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} |