Ermanno Brusadin / mbed

mbed library sources

Dependents:   FRDM-KL46Z_LCD_Test FRDM-KL46Z_LCD_Test FRDM-KL46Z_Plantilla FRDM-KL46Z_Plantilla ... more

common/Timer.cpp@0:6bc4ac881c8e, 2016-07-28 (annotated)

Committer:
ebrus
Date:
Thu Jul 28 15:56:34 2016 +0000
Revision:
0:6bc4ac881c8e
1;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ebrus 0:6bc4ac881c8e 1 /* mbed Microcontroller Library
ebrus 0:6bc4ac881c8e 2 * Copyright (c) 2006-2013 ARM Limited
ebrus 0:6bc4ac881c8e 3 *
ebrus 0:6bc4ac881c8e 4 * Licensed under the Apache License, Version 2.0 (the "License");
ebrus 0:6bc4ac881c8e 5 * you may not use this file except in compliance with the License.
ebrus 0:6bc4ac881c8e 6 * You may obtain a copy of the License at
ebrus 0:6bc4ac881c8e 7 *
ebrus 0:6bc4ac881c8e 8 * http://www.apache.org/licenses/LICENSE-2.0
ebrus 0:6bc4ac881c8e 9 *
ebrus 0:6bc4ac881c8e 10 * Unless required by applicable law or agreed to in writing, software
ebrus 0:6bc4ac881c8e 11 * distributed under the License is distributed on an "AS IS" BASIS,
ebrus 0:6bc4ac881c8e 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ebrus 0:6bc4ac881c8e 13 * See the License for the specific language governing permissions and
ebrus 0:6bc4ac881c8e 14 * limitations under the License.
ebrus 0:6bc4ac881c8e 15 */
ebrus 0:6bc4ac881c8e 16 #include "Timer.h"
ebrus 0:6bc4ac881c8e 17 #include "us_ticker_api.h"
ebrus 0:6bc4ac881c8e 18
ebrus 0:6bc4ac881c8e 19 namespace mbed {
ebrus 0:6bc4ac881c8e 20
ebrus 0:6bc4ac881c8e 21 Timer::Timer() : _running(), _start(), _time() {
ebrus 0:6bc4ac881c8e 22 reset();
ebrus 0:6bc4ac881c8e 23 }
ebrus 0:6bc4ac881c8e 24
ebrus 0:6bc4ac881c8e 25 void Timer::start() {
ebrus 0:6bc4ac881c8e 26 _start = us_ticker_read();
ebrus 0:6bc4ac881c8e 27 _running = 1;
ebrus 0:6bc4ac881c8e 28 }
ebrus 0:6bc4ac881c8e 29
ebrus 0:6bc4ac881c8e 30 void Timer::stop() {
ebrus 0:6bc4ac881c8e 31 _time += slicetime();
ebrus 0:6bc4ac881c8e 32 _running = 0;
ebrus 0:6bc4ac881c8e 33 }
ebrus 0:6bc4ac881c8e 34
ebrus 0:6bc4ac881c8e 35 int Timer::read_us() {
ebrus 0:6bc4ac881c8e 36 return _time + slicetime();
ebrus 0:6bc4ac881c8e 37 }
ebrus 0:6bc4ac881c8e 38
ebrus 0:6bc4ac881c8e 39 float Timer::read() {
ebrus 0:6bc4ac881c8e 40 return (float)read_us() / 1000000.0f;
ebrus 0:6bc4ac881c8e 41 }
ebrus 0:6bc4ac881c8e 42
ebrus 0:6bc4ac881c8e 43 int Timer::read_ms() {
ebrus 0:6bc4ac881c8e 44 return read_us() / 1000;
ebrus 0:6bc4ac881c8e 45 }
ebrus 0:6bc4ac881c8e 46
ebrus 0:6bc4ac881c8e 47 int Timer::slicetime() {
ebrus 0:6bc4ac881c8e 48 if (_running) {
ebrus 0:6bc4ac881c8e 49 return us_ticker_read() - _start;
ebrus 0:6bc4ac881c8e 50 } else {
ebrus 0:6bc4ac881c8e 51 return 0;
ebrus 0:6bc4ac881c8e 52 }
ebrus 0:6bc4ac881c8e 53 }
ebrus 0:6bc4ac881c8e 54
ebrus 0:6bc4ac881c8e 55 void Timer::reset() {
ebrus 0:6bc4ac881c8e 56 _start = us_ticker_read();
ebrus 0:6bc4ac881c8e 57 _time = 0;
ebrus 0:6bc4ac881c8e 58 }
ebrus 0:6bc4ac881c8e 59
ebrus 0:6bc4ac881c8e 60 #ifdef MBED_OPERATORS
ebrus 0:6bc4ac881c8e 61 Timer::operator float() {
ebrus 0:6bc4ac881c8e 62 return read();
ebrus 0:6bc4ac881c8e 63 }
ebrus 0:6bc4ac881c8e 64 #endif
ebrus 0:6bc4ac881c8e 65
ebrus 0:6bc4ac881c8e 66 } // namespace mbed