eunkyoung kim / mbed-src

mbed library sources modify the rtc/i2c

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Fork of mbed-src by eunkyoung kim

api/rtc_time.h@577:545d200432a1, 2015-06-29 (annotated)

Committer:
eunkyoungkim
Date:
Mon Jun 29 05:49:52 2015 +0000
Revision:
577:545d200432a1
Parent:
489:119543c9f674 
modify the i2c.c/i2c.h

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 13:0645d8841f51 1 /* mbed Microcontroller Library
bogdanm 13:0645d8841f51 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 13:0645d8841f51 3 *
bogdanm 13:0645d8841f51 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 13:0645d8841f51 5 * you may not use this file except in compliance with the License.
bogdanm 13:0645d8841f51 6 * You may obtain a copy of the License at
bogdanm 13:0645d8841f51 7 *
bogdanm 13:0645d8841f51 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 13:0645d8841f51 9 *
bogdanm 13:0645d8841f51 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 13:0645d8841f51 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 13:0645d8841f51 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 13:0645d8841f51 13 * See the License for the specific language governing permissions and
bogdanm 13:0645d8841f51 14 * limitations under the License.
bogdanm 13:0645d8841f51 15 */
bogdanm 13:0645d8841f51 16
bogdanm 13:0645d8841f51 17 #include <time.h>
bogdanm 13:0645d8841f51 18
bogdanm 13:0645d8841f51 19 #ifdef __cplusplus
bogdanm 13:0645d8841f51 20 extern "C" {
bogdanm 13:0645d8841f51 21 #endif
bogdanm 13:0645d8841f51 22
bogdanm 13:0645d8841f51 23 /** Implementation of the C time.h functions
bogdanm 13:0645d8841f51 24 *
bogdanm 13:0645d8841f51 25 * Provides mechanisms to set and read the current time, based
bogdanm 13:0645d8841f51 26 * on the microcontroller Real-Time Clock (RTC), plus some
bogdanm 13:0645d8841f51 27 * standard C manipulation and formating functions.
bogdanm 13:0645d8841f51 28 *
bogdanm 13:0645d8841f51 29 * Example:
bogdanm 13:0645d8841f51 30 * @code
bogdanm 13:0645d8841f51 31 * #include "mbed.h"
bogdanm 13:0645d8841f51 32 *
bogdanm 13:0645d8841f51 33 * int main() {
bogdanm 13:0645d8841f51 34 * set_time(1256729737); // Set RTC time to Wed, 28 Oct 2009 11:35:37
bogdanm 13:0645d8841f51 35 *
bogdanm 13:0645d8841f51 36 * while(1) {
bogdanm 13:0645d8841f51 37 * time_t seconds = time(NULL);
bogdanm 13:0645d8841f51 38 *
bogdanm 13:0645d8841f51 39 * printf("Time as seconds since January 1, 1970 = %d\n", seconds);
bogdanm 13:0645d8841f51 40 *
bogdanm 13:0645d8841f51 41 * printf("Time as a basic string = %s", ctime(&seconds));
bogdanm 13:0645d8841f51 42 *
bogdanm 13:0645d8841f51 43 * char buffer[32];
bogdanm 13:0645d8841f51 44 * strftime(buffer, 32, "%I:%M %p\n", localtime(&seconds));
bogdanm 13:0645d8841f51 45 * printf("Time as a custom formatted string = %s", buffer);
bogdanm 13:0645d8841f51 46 *
bogdanm 13:0645d8841f51 47 * wait(1);
bogdanm 13:0645d8841f51 48 * }
bogdanm 13:0645d8841f51 49 * }
bogdanm 13:0645d8841f51 50 * @endcode
bogdanm 13:0645d8841f51 51 */
bogdanm 13:0645d8841f51 52
bogdanm 13:0645d8841f51 53 /** Set the current time
bogdanm 13:0645d8841f51 54 *
bogdanm 13:0645d8841f51 55 * Initialises and sets the time of the microcontroller Real-Time Clock (RTC)
bogdanm 13:0645d8841f51 56 * to the time represented by the number of seconds since January 1, 1970
bogdanm 13:0645d8841f51 57 * (the UNIX timestamp).
bogdanm 13:0645d8841f51 58 *
bogdanm 13:0645d8841f51 59 * @param t Number of seconds since January 1, 1970 (the UNIX timestamp)
bogdanm 13:0645d8841f51 60 *
bogdanm 13:0645d8841f51 61 * Example:
bogdanm 13:0645d8841f51 62 * @code
bogdanm 13:0645d8841f51 63 * #include "mbed.h"
bogdanm 13:0645d8841f51 64 *
bogdanm 13:0645d8841f51 65 * int main() {
bogdanm 13:0645d8841f51 66 * set_time(1256729737); // Set time to Wed, 28 Oct 2009 11:35:37
bogdanm 13:0645d8841f51 67 * }
bogdanm 13:0645d8841f51 68 * @endcode
bogdanm 13:0645d8841f51 69 */
bogdanm 13:0645d8841f51 70 void set_time(time_t t);
bogdanm 13:0645d8841f51 71
mbed_official 489:119543c9f674 72 /** Attach an external RTC to be used for the C time functions
mbed_official 489:119543c9f674 73 *
mbed_official 489:119543c9f674 74 * Do not call this function from an interrupt while an RTC read/write operation may be occurring
mbed_official 489:119543c9f674 75 *
mbed_official 489:119543c9f674 76 * @param read_rtc pointer to function which returns current UNIX timestamp
mbed_official 489:119543c9f674 77 * @param write_rtc pointer to function which sets current UNIX timestamp, can be NULL
mbed_official 489:119543c9f674 78 * @param init_rtc pointer to funtion which initializes RTC, can be NULL
mbed_official 489:119543c9f674 79 * @param isenabled_rtc pointer to function wich returns if the rtc is enabled, can be NULL
mbed_official 489:119543c9f674 80 */
mbed_official 489:119543c9f674 81 void attach_rtc(time_t (*read_rtc)(void), void (*write_rtc)(time_t), void (*init_rtc)(void), int (*isenabled_rtc)(void));
mbed_official 489:119543c9f674 82
bogdanm 13:0645d8841f51 83 #ifdef __cplusplus
bogdanm 13:0645d8841f51 84 }
bogdanm 13:0645d8841f51 85 #endif