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Dependencies:   mbed

mbed/rtc_time.h@0:0dee8840a1c0, 2019-07-29 (annotated)

Committer:
einsteingustavo
Date:
Mon Jul 29 20:38:00 2019 +0000
Revision:
0:0dee8840a1c0
Mangue Baja Box

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einsteingustavo 0:0dee8840a1c0 1 /* mbed Microcontroller Library
einsteingustavo 0:0dee8840a1c0 2 * Copyright (c) 2006-2013 ARM Limited
einsteingustavo 0:0dee8840a1c0 3 *
einsteingustavo 0:0dee8840a1c0 4 * Licensed under the Apache License, Version 2.0 (the "License");
einsteingustavo 0:0dee8840a1c0 5 * you may not use this file except in compliance with the License.
einsteingustavo 0:0dee8840a1c0 6 * You may obtain a copy of the License at
einsteingustavo 0:0dee8840a1c0 7 *
einsteingustavo 0:0dee8840a1c0 8 * http://www.apache.org/licenses/LICENSE-2.0
einsteingustavo 0:0dee8840a1c0 9 *
einsteingustavo 0:0dee8840a1c0 10 * Unless required by applicable law or agreed to in writing, software
einsteingustavo 0:0dee8840a1c0 11 * distributed under the License is distributed on an "AS IS" BASIS,
einsteingustavo 0:0dee8840a1c0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
einsteingustavo 0:0dee8840a1c0 13 * See the License for the specific language governing permissions and
einsteingustavo 0:0dee8840a1c0 14 * limitations under the License.
einsteingustavo 0:0dee8840a1c0 15 */
einsteingustavo 0:0dee8840a1c0 16
einsteingustavo 0:0dee8840a1c0 17 #include <time.h>
einsteingustavo 0:0dee8840a1c0 18
einsteingustavo 0:0dee8840a1c0 19 #ifdef __cplusplus
einsteingustavo 0:0dee8840a1c0 20 extern "C" {
einsteingustavo 0:0dee8840a1c0 21 #endif
einsteingustavo 0:0dee8840a1c0 22
einsteingustavo 0:0dee8840a1c0 23 /** Implementation of the C time.h functions
einsteingustavo 0:0dee8840a1c0 24 *
einsteingustavo 0:0dee8840a1c0 25 * Provides mechanisms to set and read the current time, based
einsteingustavo 0:0dee8840a1c0 26 * on the microcontroller Real-Time Clock (RTC), plus some
einsteingustavo 0:0dee8840a1c0 27 * standard C manipulation and formating functions.
einsteingustavo 0:0dee8840a1c0 28 *
einsteingustavo 0:0dee8840a1c0 29 * Example:
einsteingustavo 0:0dee8840a1c0 30 * @code
einsteingustavo 0:0dee8840a1c0 31 * #include "mbed.h"
einsteingustavo 0:0dee8840a1c0 32 *
einsteingustavo 0:0dee8840a1c0 33 * int main() {
einsteingustavo 0:0dee8840a1c0 34 * set_time(1256729737); // Set RTC time to Wed, 28 Oct 2009 11:35:37
einsteingustavo 0:0dee8840a1c0 35 *
einsteingustavo 0:0dee8840a1c0 36 * while(1) {
einsteingustavo 0:0dee8840a1c0 37 * time_t seconds = time(NULL);
einsteingustavo 0:0dee8840a1c0 38 *
einsteingustavo 0:0dee8840a1c0 39 * printf("Time as seconds since January 1, 1970 = %d\n", seconds);
einsteingustavo 0:0dee8840a1c0 40 *
einsteingustavo 0:0dee8840a1c0 41 * printf("Time as a basic string = %s", ctime(&seconds));
einsteingustavo 0:0dee8840a1c0 42 *
einsteingustavo 0:0dee8840a1c0 43 * char buffer[32];
einsteingustavo 0:0dee8840a1c0 44 * strftime(buffer, 32, "%I:%M %p\n", localtime(&seconds));
einsteingustavo 0:0dee8840a1c0 45 * printf("Time as a custom formatted string = %s", buffer);
einsteingustavo 0:0dee8840a1c0 46 *
einsteingustavo 0:0dee8840a1c0 47 * wait(1);
einsteingustavo 0:0dee8840a1c0 48 * }
einsteingustavo 0:0dee8840a1c0 49 * }
einsteingustavo 0:0dee8840a1c0 50 * @endcode
einsteingustavo 0:0dee8840a1c0 51 */
einsteingustavo 0:0dee8840a1c0 52
einsteingustavo 0:0dee8840a1c0 53 /** Set the current time
einsteingustavo 0:0dee8840a1c0 54 *
einsteingustavo 0:0dee8840a1c0 55 * Initialises and sets the time of the microcontroller Real-Time Clock (RTC)
einsteingustavo 0:0dee8840a1c0 56 * to the time represented by the number of seconds since January 1, 1970
einsteingustavo 0:0dee8840a1c0 57 * (the UNIX timestamp).
einsteingustavo 0:0dee8840a1c0 58 *
einsteingustavo 0:0dee8840a1c0 59 * @param t Number of seconds since January 1, 1970 (the UNIX timestamp)
einsteingustavo 0:0dee8840a1c0 60 *
einsteingustavo 0:0dee8840a1c0 61 * Example:
einsteingustavo 0:0dee8840a1c0 62 * @code
einsteingustavo 0:0dee8840a1c0 63 * #include "mbed.h"
einsteingustavo 0:0dee8840a1c0 64 *
einsteingustavo 0:0dee8840a1c0 65 * int main() {
einsteingustavo 0:0dee8840a1c0 66 * set_time(1256729737); // Set time to Wed, 28 Oct 2009 11:35:37
einsteingustavo 0:0dee8840a1c0 67 * }
einsteingustavo 0:0dee8840a1c0 68 * @endcode
einsteingustavo 0:0dee8840a1c0 69 */
einsteingustavo 0:0dee8840a1c0 70 void set_time(time_t t);
einsteingustavo 0:0dee8840a1c0 71
einsteingustavo 0:0dee8840a1c0 72 #ifdef __cplusplus
einsteingustavo 0:0dee8840a1c0 73 }
einsteingustavo 0:0dee8840a1c0 74 #endif
einsteingustavo 0:0dee8840a1c0 75