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LowPowerTimer

LowPowerTimer class hierarchy

LowPowerTimer inherits from the Timer Class. The timer in this case continues operating even in deep sleep mode. It relies on lp_ticker, which is the low power ticker.

You can use the LowPowerTimer interface to create, start, stop and read a timer for measuring small times (between microseconds and seconds). You can independently create, start and stop any number of LowPowerTimer objects. For more information about power management, please see our power management APIs.

LowPowerTimer class reference

Additional Inherited Members
 Public Member Functions inherited from mbed::Timer
 Timer (const ticker_data_t *data)
void start ()
void stop ()
void reset ()
float read ()
int read_ms ()
int read_us ()
 operator float ()
us_timestamp_t read_high_resolution_us ()
 Protected Member Functions inherited from mbed::Timer
us_timestamp_t slicetime ()
 Protected Attributes inherited from mbed::Timer
int _running
us_timestamp_t _start
us_timestamp_t _time
const ticker_data_t_ticker_data
bool _lock_deepsleep

LowPowerTimer example

/* mbed Example Program
 * Copyright (c) 2006-2014 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 "mbed.h"
 
LowPowerTimer t;
 
int main() {
    t.start();
    printf("Hello World!\n");
    t.stop();
    printf("The time taken was %f seconds\n", t.read());
}

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