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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

common/Timer.cpp@9:0ce32e54c9a7, 2013-06-10 (annotated)

Committer:
emilmont
Date:
Mon Jun 10 16:03:00 2013 +0100
Revision:
9:0ce32e54c9a7
Parent:
cpp/Timer.cpp@8:4e25b8576136
Child:
10:3bc89ef62ce7
Refactoring of the mbed SDK:

- Provide a well defined HAL and API

- Keep separated the HAL implementations for the different targets

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:fd0d7bdfcdc2 1 /* mbed Microcontroller Library
emilmont 2:143cac498751 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 0:fd0d7bdfcdc2 3 *
emilmont 2:143cac498751 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 2:143cac498751 5 * you may not use this file except in compliance with the License.
emilmont 2:143cac498751 6 * You may obtain a copy of the License at
mbed_official 0:fd0d7bdfcdc2 7 *
emilmont 2:143cac498751 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 0:fd0d7bdfcdc2 9 *
emilmont 2:143cac498751 10 * Unless required by applicable law or agreed to in writing, software
emilmont 2:143cac498751 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 2:143cac498751 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 2:143cac498751 13 * See the License for the specific language governing permissions and
emilmont 2:143cac498751 14 * limitations under the License.
mbed_official 0:fd0d7bdfcdc2 15 */
mbed_official 0:fd0d7bdfcdc2 16 #include "Timer.h"
mbed_official 0:fd0d7bdfcdc2 17 #include "us_ticker_api.h"
mbed_official 0:fd0d7bdfcdc2 18
mbed_official 0:fd0d7bdfcdc2 19 namespace mbed {
mbed_official 0:fd0d7bdfcdc2 20
mbed_official 0:fd0d7bdfcdc2 21 Timer::Timer() {
mbed_official 0:fd0d7bdfcdc2 22 reset();
mbed_official 0:fd0d7bdfcdc2 23 }
mbed_official 0:fd0d7bdfcdc2 24
mbed_official 0:fd0d7bdfcdc2 25 void Timer::start() {
mbed_official 0:fd0d7bdfcdc2 26 _start = us_ticker_read();
mbed_official 0:fd0d7bdfcdc2 27 _running = 1;
mbed_official 0:fd0d7bdfcdc2 28 }
mbed_official 0:fd0d7bdfcdc2 29
mbed_official 0:fd0d7bdfcdc2 30 void Timer::stop() {
mbed_official 0:fd0d7bdfcdc2 31 _time += slicetime();
mbed_official 0:fd0d7bdfcdc2 32 _running = 0;
mbed_official 0:fd0d7bdfcdc2 33 }
mbed_official 0:fd0d7bdfcdc2 34
mbed_official 0:fd0d7bdfcdc2 35 int Timer::read_us() {
mbed_official 0:fd0d7bdfcdc2 36 return _time + slicetime();
mbed_official 0:fd0d7bdfcdc2 37 }
emilmont 2:143cac498751 38
mbed_official 0:fd0d7bdfcdc2 39 float Timer::read() {
emilmont 8:4e25b8576136 40 return (float)read_us() / 1000000.0f;
mbed_official 0:fd0d7bdfcdc2 41 }
mbed_official 0:fd0d7bdfcdc2 42
mbed_official 0:fd0d7bdfcdc2 43 int Timer::read_ms() {
mbed_official 0:fd0d7bdfcdc2 44 return read_us() / 1000;
mbed_official 0:fd0d7bdfcdc2 45 }
mbed_official 0:fd0d7bdfcdc2 46
mbed_official 0:fd0d7bdfcdc2 47 int Timer::slicetime() {
mbed_official 0:fd0d7bdfcdc2 48 if (_running) {
mbed_official 0:fd0d7bdfcdc2 49 return us_ticker_read() - _start;
mbed_official 0:fd0d7bdfcdc2 50 } else {
mbed_official 0:fd0d7bdfcdc2 51 return 0;
mbed_official 0:fd0d7bdfcdc2 52 }
mbed_official 0:fd0d7bdfcdc2 53 }
mbed_official 0:fd0d7bdfcdc2 54
mbed_official 0:fd0d7bdfcdc2 55 void Timer::reset() {
mbed_official 0:fd0d7bdfcdc2 56 _start = us_ticker_read();
mbed_official 0:fd0d7bdfcdc2 57 _time = 0;
mbed_official 0:fd0d7bdfcdc2 58 }
mbed_official 0:fd0d7bdfcdc2 59
mbed_official 0:fd0d7bdfcdc2 60 #ifdef MBED_OPERATORS
mbed_official 0:fd0d7bdfcdc2 61 Timer::operator float() {
mbed_official 0:fd0d7bdfcdc2 62 return read();
mbed_official 0:fd0d7bdfcdc2 63 }
mbed_official 0:fd0d7bdfcdc2 64 #endif
mbed_official 0:fd0d7bdfcdc2 65
mbed_official 0:fd0d7bdfcdc2 66 } // namespace mbed