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Timer

Use the Timer 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 Timer objects.

Warning: Timers are based on 32-bit int microsecond counters, so they can only time up to a maximum of 2^31-1 microseconds (30 minutes). They are designed for times between microseconds and seconds. For longer times, you should consider the time() real time clock.

Timer class reference

Public Member Functions
 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
us_timestamp_t slicetime ()
Protected Attributes
int _running
us_timestamp_t _start
us_timestamp_t _time
const ticker_data_t_ticker_data
bool _lock_deepsleep

Timer hello, world

/* 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"
 
Timer t;
 
int main() {
    t.start();
    printf("Hello World!\n");
    t.stop();
    printf("The time taken was %f seconds\n", t.read());
}