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platform/rtc_time.h
- Committer:
- <>
- Date:
- 2016-10-28
- Revision:
- 149:156823d33999
- Child:
- 160:d5399cc887bb
File content as of revision 149:156823d33999:
/** \addtogroup platform */ /** @{*/ /* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <time.h> #ifdef __cplusplus extern "C" { #endif /** Implementation of the C time.h functions * * Provides mechanisms to set and read the current time, based * on the microcontroller Real-Time Clock (RTC), plus some * standard C manipulation and formating functions. * * Example: * @code * #include "mbed.h" * * int main() { * set_time(1256729737); // Set RTC time to Wed, 28 Oct 2009 11:35:37 * * while(1) { * time_t seconds = time(NULL); * * printf("Time as seconds since January 1, 1970 = %d\n", seconds); * * printf("Time as a basic string = %s", ctime(&seconds)); * * char buffer[32]; * strftime(buffer, 32, "%I:%M %p\n", localtime(&seconds)); * printf("Time as a custom formatted string = %s", buffer); * * wait(1); * } * } * @endcode */ /** Set the current time * * Initialises and sets the time of the microcontroller Real-Time Clock (RTC) * to the time represented by the number of seconds since January 1, 1970 * (the UNIX timestamp). * * @param t Number of seconds since January 1, 1970 (the UNIX timestamp) * * @Note Synchronization level: Thread safe * * Example: * @code * #include "mbed.h" * * int main() { * set_time(1256729737); // Set time to Wed, 28 Oct 2009 11:35:37 * } * @endcode */ void set_time(time_t t); /** Attach an external RTC to be used for the C time functions * * @Note Synchronization level: Thread safe * * @param read_rtc pointer to function which returns current UNIX timestamp * @param write_rtc pointer to function which sets current UNIX timestamp, can be NULL * @param init_rtc pointer to funtion which initializes RTC, can be NULL * @param isenabled_rtc pointer to function wich returns if the rtc is enabled, can be NULL */ void attach_rtc(time_t (*read_rtc)(void), void (*write_rtc)(time_t), void (*init_rtc)(void), int (*isenabled_rtc)(void)); #ifdef __cplusplus } #endif /** @}*/