Micah B / mbed

mbed

Dependents:   DHTSensor_Test K64F_eCompass_OneNET_JW

rtc_time.h@0:2cc6bb4d7fea, 2015-02-25 (annotated)

Committer:
mbotkinl
Date:
Wed Feb 25 20:22:22 2015 +0000
Revision:
0:2cc6bb4d7fea
Working code to read Temperature and Humidity readings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbotkinl 0:2cc6bb4d7fea 1 /* mbed Microcontroller Library
mbotkinl 0:2cc6bb4d7fea 2 * Copyright (c) 2006-2013 ARM Limited
mbotkinl 0:2cc6bb4d7fea 3 *
mbotkinl 0:2cc6bb4d7fea 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbotkinl 0:2cc6bb4d7fea 5 * you may not use this file except in compliance with the License.
mbotkinl 0:2cc6bb4d7fea 6 * You may obtain a copy of the License at
mbotkinl 0:2cc6bb4d7fea 7 *
mbotkinl 0:2cc6bb4d7fea 8 * http://www.apache.org/licenses/LICENSE-2.0
mbotkinl 0:2cc6bb4d7fea 9 *
mbotkinl 0:2cc6bb4d7fea 10 * Unless required by applicable law or agreed to in writing, software
mbotkinl 0:2cc6bb4d7fea 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbotkinl 0:2cc6bb4d7fea 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbotkinl 0:2cc6bb4d7fea 13 * See the License for the specific language governing permissions and
mbotkinl 0:2cc6bb4d7fea 14 * limitations under the License.
mbotkinl 0:2cc6bb4d7fea 15 */
mbotkinl 0:2cc6bb4d7fea 16
mbotkinl 0:2cc6bb4d7fea 17 #include <time.h>
mbotkinl 0:2cc6bb4d7fea 18
mbotkinl 0:2cc6bb4d7fea 19 #ifdef __cplusplus
mbotkinl 0:2cc6bb4d7fea 20 extern "C" {
mbotkinl 0:2cc6bb4d7fea 21 #endif
mbotkinl 0:2cc6bb4d7fea 22
mbotkinl 0:2cc6bb4d7fea 23 /** Implementation of the C time.h functions
mbotkinl 0:2cc6bb4d7fea 24 *
mbotkinl 0:2cc6bb4d7fea 25 * Provides mechanisms to set and read the current time, based
mbotkinl 0:2cc6bb4d7fea 26 * on the microcontroller Real-Time Clock (RTC), plus some
mbotkinl 0:2cc6bb4d7fea 27 * standard C manipulation and formating functions.
mbotkinl 0:2cc6bb4d7fea 28 *
mbotkinl 0:2cc6bb4d7fea 29 * Example:
mbotkinl 0:2cc6bb4d7fea 30 * @code
mbotkinl 0:2cc6bb4d7fea 31 * #include "mbed.h"
mbotkinl 0:2cc6bb4d7fea 32 *
mbotkinl 0:2cc6bb4d7fea 33 * int main() {
mbotkinl 0:2cc6bb4d7fea 34 * set_time(1256729737); // Set RTC time to Wed, 28 Oct 2009 11:35:37
mbotkinl 0:2cc6bb4d7fea 35 *
mbotkinl 0:2cc6bb4d7fea 36 * while(1) {
mbotkinl 0:2cc6bb4d7fea 37 * time_t seconds = time(NULL);
mbotkinl 0:2cc6bb4d7fea 38 *
mbotkinl 0:2cc6bb4d7fea 39 * printf("Time as seconds since January 1, 1970 = %d\n", seconds);
mbotkinl 0:2cc6bb4d7fea 40 *
mbotkinl 0:2cc6bb4d7fea 41 * printf("Time as a basic string = %s", ctime(&seconds));
mbotkinl 0:2cc6bb4d7fea 42 *
mbotkinl 0:2cc6bb4d7fea 43 * char buffer[32];
mbotkinl 0:2cc6bb4d7fea 44 * strftime(buffer, 32, "%I:%M %p\n", localtime(&seconds));
mbotkinl 0:2cc6bb4d7fea 45 * printf("Time as a custom formatted string = %s", buffer);
mbotkinl 0:2cc6bb4d7fea 46 *
mbotkinl 0:2cc6bb4d7fea 47 * wait(1);
mbotkinl 0:2cc6bb4d7fea 48 * }
mbotkinl 0:2cc6bb4d7fea 49 * }
mbotkinl 0:2cc6bb4d7fea 50 * @endcode
mbotkinl 0:2cc6bb4d7fea 51 */
mbotkinl 0:2cc6bb4d7fea 52
mbotkinl 0:2cc6bb4d7fea 53 /** Set the current time
mbotkinl 0:2cc6bb4d7fea 54 *
mbotkinl 0:2cc6bb4d7fea 55 * Initialises and sets the time of the microcontroller Real-Time Clock (RTC)
mbotkinl 0:2cc6bb4d7fea 56 * to the time represented by the number of seconds since January 1, 1970
mbotkinl 0:2cc6bb4d7fea 57 * (the UNIX timestamp).
mbotkinl 0:2cc6bb4d7fea 58 *
mbotkinl 0:2cc6bb4d7fea 59 * @param t Number of seconds since January 1, 1970 (the UNIX timestamp)
mbotkinl 0:2cc6bb4d7fea 60 *
mbotkinl 0:2cc6bb4d7fea 61 * Example:
mbotkinl 0:2cc6bb4d7fea 62 * @code
mbotkinl 0:2cc6bb4d7fea 63 * #include "mbed.h"
mbotkinl 0:2cc6bb4d7fea 64 *
mbotkinl 0:2cc6bb4d7fea 65 * int main() {
mbotkinl 0:2cc6bb4d7fea 66 * set_time(1256729737); // Set time to Wed, 28 Oct 2009 11:35:37
mbotkinl 0:2cc6bb4d7fea 67 * }
mbotkinl 0:2cc6bb4d7fea 68 * @endcode
mbotkinl 0:2cc6bb4d7fea 69 */
mbotkinl 0:2cc6bb4d7fea 70 void set_time(time_t t);
mbotkinl 0:2cc6bb4d7fea 71
mbotkinl 0:2cc6bb4d7fea 72 #ifdef __cplusplus
mbotkinl 0:2cc6bb4d7fea 73 }
mbotkinl 0:2cc6bb4d7fea 74 #endif