1 /* mbed Microcontroller Library
2 * Copyright (c) 2006-2013 ARM Limited
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include "us_ticker_api.h"
21 Timer::Timer() : _running(), _start(), _time() {
27 _start = us_ticker_read();
37 int Timer::read_us() {
38 return _time + slicetime();
42 return (float)read_us() / 1000000.0f;
45 int Timer::read_ms() {
46 return read_us() / 1000;
49 int Timer::slicetime() {
51 return us_ticker_read() - _start;
58 _start = us_ticker_read();
63 Timer::operator float() {