Realtime spectrogram for DISCO-F746NG. On-board MEMS microphone is used for input sound signal. リアルタイムスペクトログラム.入力:MEMSマイク
Dependencies: F746_GUI F746_SAI_IO UIT_FFT_Real
mbed_src_STM32F7/common/Timer.cpp@4:c1beacfc42c7, 2016-10-02 (annotated)
- Committer:
- MikamiUitOpen
- Date:
- Sun Oct 02 10:51:10 2016 +0000
- Revision:
- 4:c1beacfc42c7
5
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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MikamiUitOpen | 4:c1beacfc42c7 | 1 | /* mbed Microcontroller Library |
MikamiUitOpen | 4:c1beacfc42c7 | 2 | * Copyright (c) 2006-2013 ARM Limited |
MikamiUitOpen | 4:c1beacfc42c7 | 3 | * |
MikamiUitOpen | 4:c1beacfc42c7 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
MikamiUitOpen | 4:c1beacfc42c7 | 5 | * you may not use this file except in compliance with the License. |
MikamiUitOpen | 4:c1beacfc42c7 | 6 | * You may obtain a copy of the License at |
MikamiUitOpen | 4:c1beacfc42c7 | 7 | * |
MikamiUitOpen | 4:c1beacfc42c7 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
MikamiUitOpen | 4:c1beacfc42c7 | 9 | * |
MikamiUitOpen | 4:c1beacfc42c7 | 10 | * Unless required by applicable law or agreed to in writing, software |
MikamiUitOpen | 4:c1beacfc42c7 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
MikamiUitOpen | 4:c1beacfc42c7 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
MikamiUitOpen | 4:c1beacfc42c7 | 13 | * See the License for the specific language governing permissions and |
MikamiUitOpen | 4:c1beacfc42c7 | 14 | * limitations under the License. |
MikamiUitOpen | 4:c1beacfc42c7 | 15 | */ |
MikamiUitOpen | 4:c1beacfc42c7 | 16 | #include "Timer.h" |
MikamiUitOpen | 4:c1beacfc42c7 | 17 | #include "ticker_api.h" |
MikamiUitOpen | 4:c1beacfc42c7 | 18 | #include "us_ticker_api.h" |
MikamiUitOpen | 4:c1beacfc42c7 | 19 | |
MikamiUitOpen | 4:c1beacfc42c7 | 20 | namespace mbed { |
MikamiUitOpen | 4:c1beacfc42c7 | 21 | |
MikamiUitOpen | 4:c1beacfc42c7 | 22 | Timer::Timer() : _running(), _start(), _time(), _ticker_data(get_us_ticker_data()) { |
MikamiUitOpen | 4:c1beacfc42c7 | 23 | reset(); |
MikamiUitOpen | 4:c1beacfc42c7 | 24 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 25 | |
MikamiUitOpen | 4:c1beacfc42c7 | 26 | Timer::Timer(const ticker_data_t *data) : _running(), _start(), _time(), _ticker_data(data) { |
MikamiUitOpen | 4:c1beacfc42c7 | 27 | reset(); |
MikamiUitOpen | 4:c1beacfc42c7 | 28 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 29 | |
MikamiUitOpen | 4:c1beacfc42c7 | 30 | void Timer::start() { |
MikamiUitOpen | 4:c1beacfc42c7 | 31 | if (!_running) { |
MikamiUitOpen | 4:c1beacfc42c7 | 32 | _start = ticker_read(_ticker_data); |
MikamiUitOpen | 4:c1beacfc42c7 | 33 | _running = 1; |
MikamiUitOpen | 4:c1beacfc42c7 | 34 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 35 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 36 | |
MikamiUitOpen | 4:c1beacfc42c7 | 37 | void Timer::stop() { |
MikamiUitOpen | 4:c1beacfc42c7 | 38 | _time += slicetime(); |
MikamiUitOpen | 4:c1beacfc42c7 | 39 | _running = 0; |
MikamiUitOpen | 4:c1beacfc42c7 | 40 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 41 | |
MikamiUitOpen | 4:c1beacfc42c7 | 42 | int Timer::read_us() { |
MikamiUitOpen | 4:c1beacfc42c7 | 43 | return _time + slicetime(); |
MikamiUitOpen | 4:c1beacfc42c7 | 44 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 45 | |
MikamiUitOpen | 4:c1beacfc42c7 | 46 | float Timer::read() { |
MikamiUitOpen | 4:c1beacfc42c7 | 47 | return (float)read_us() / 1000000.0f; |
MikamiUitOpen | 4:c1beacfc42c7 | 48 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 49 | |
MikamiUitOpen | 4:c1beacfc42c7 | 50 | int Timer::read_ms() { |
MikamiUitOpen | 4:c1beacfc42c7 | 51 | return read_us() / 1000; |
MikamiUitOpen | 4:c1beacfc42c7 | 52 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 53 | |
MikamiUitOpen | 4:c1beacfc42c7 | 54 | int Timer::slicetime() { |
MikamiUitOpen | 4:c1beacfc42c7 | 55 | if (_running) { |
MikamiUitOpen | 4:c1beacfc42c7 | 56 | return ticker_read(_ticker_data) - _start; |
MikamiUitOpen | 4:c1beacfc42c7 | 57 | } else { |
MikamiUitOpen | 4:c1beacfc42c7 | 58 | return 0; |
MikamiUitOpen | 4:c1beacfc42c7 | 59 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 60 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 61 | |
MikamiUitOpen | 4:c1beacfc42c7 | 62 | void Timer::reset() { |
MikamiUitOpen | 4:c1beacfc42c7 | 63 | _start = ticker_read(_ticker_data); |
MikamiUitOpen | 4:c1beacfc42c7 | 64 | _time = 0; |
MikamiUitOpen | 4:c1beacfc42c7 | 65 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 66 | |
MikamiUitOpen | 4:c1beacfc42c7 | 67 | #ifdef MBED_OPERATORS |
MikamiUitOpen | 4:c1beacfc42c7 | 68 | Timer::operator float() { |
MikamiUitOpen | 4:c1beacfc42c7 | 69 | return read(); |
MikamiUitOpen | 4:c1beacfc42c7 | 70 | } |
MikamiUitOpen | 4:c1beacfc42c7 | 71 | #endif |
MikamiUitOpen | 4:c1beacfc42c7 | 72 | |
MikamiUitOpen | 4:c1beacfc42c7 | 73 | } // namespace mbed |