microSD カードのビットマップ・ファイルのビュアー.画像の最大値 縦:272ピクセル,横:480ピクセル. Bitmap file viewer for microSD card. Maximum size Vertical: 272 pixels, Horizontal: 480.
Dependencies: SDFileSystem_Warning_Fixed F746_GUI
mbed_src_STM32F7/common/Timer.cpp
- Committer:
- MikamiUitOpen
- Date:
- 2018-10-23
- Revision:
- 1:bb146d5fe9aa
- Parent:
- 0:f62ffd3644bf
File content as of revision 1:bb146d5fe9aa:
/* 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 "ticker_api.h" #include "us_ticker_api.h" namespace mbed { Timer::Timer() : _running(), _start(), _time(), _ticker_data(get_us_ticker_data()) { reset(); } Timer::Timer(const ticker_data_t *data) : _running(), _start(), _time(), _ticker_data(data) { reset(); } void Timer::start() { if (!_running) { _start = ticker_read(_ticker_data); _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 ticker_read(_ticker_data) - _start; } else { return 0; } } void Timer::reset() { _start = ticker_read(_ticker_data); _time = 0; } #ifdef MBED_OPERATORS Timer::operator float() { return read(); } #endif } // namespace mbed