mbed library sources
Dependents: STM32F103C8T6-RangoTec STM32-103C8_Plantilla_USB
common/Timer.cpp
- Committer:
- mbed_official
- Date:
- 2014-10-20
- Revision:
- 359:9d7ef901f004
- Parent:
- 212:34d62c0b2af6
File content as of revision 359:9d7ef901f004:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 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 "Timer.h" #include "us_ticker_api.h" namespace mbed { Timer::Timer() : _running(), _start(), _time() { reset(); } void Timer::start() { if (!_running) { _start = us_ticker_read(); _running = 1; } } void Timer::stop() { _time += slicetime(); _running = 0; } int Timer::read_us() { return _time + slicetime(); } float Timer::read() { return (float)read_us() / 1000000.0f; } int Timer::read_ms() { return read_us() / 1000; } int Timer::slicetime() { if (_running) { return us_ticker_read() - _start; } else { return 0; } } void Timer::reset() { _start = us_ticker_read(); _time = 0; } #ifdef MBED_OPERATORS Timer::operator float() { return read(); } #endif } // namespace mbed