Timer

The Timer interface is used to create, start, stop and read a timer for measuring small times (between microseconds and seconds).

Any number of Timer objects can be created, and can be started and stopped independently

Hello World!

Simple timer example

#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());
}

API

API summary

Timer	A general purpose timer
Functions
start	Start the timer
stop	Stop the timer
reset	Reset the timer to 0.
read	Get the time passed in seconds
read_ms	Get the time passed in mili-seconds
read_us	Get the time passed in micro-seconds

class Timer : public Base

A general purpose timer

void start()

Start the timer

void stop()

Stop the timer

void reset()

Reset the timer to 0.

float read()

Get the time passed in seconds

int read_ms()

Get the time passed in mili-seconds

int read_us()

Get the time passed in micro-seconds

Warning

Note that timers are based on 32-bit int microsecond counters, so can only time up to a maximum of 2^31-1 microseconds i.e. 30 minutes. They are designed for times between microseconds and seconds. For longer times, you should consider the time()/Real time clock.

Timer

Hello World!

Simple timer example

API

Warning

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