不韋 呂 / F746_SD_GraphicEqualizer

Output the audio signal with filtering by graphic equalizer in the *.wav file on the SD card using onboard CODEC. SD カードの *.wav ファイルのオーディオ信号をグラフィック･イコライザを通して，ボードに搭載されているCODEC で出力する．

Dependencies:   F746_GUI F746_SAI_IO SD_PlayerSkeleton FrequencyResponseDrawer

mbed_src_STM32F7/common/Timer.cpp@24:f78f9d0ac262, 2017-04-10 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Apr 10 04:07:35 2017 +0000
Revision:
24:f78f9d0ac262
Parent:
16:cbb726ac20d8 
25

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 16:cbb726ac20d8 1 /* mbed Microcontroller Library
MikamiUitOpen 16:cbb726ac20d8 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 16:cbb726ac20d8 3 *
MikamiUitOpen 16:cbb726ac20d8 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 16:cbb726ac20d8 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 16:cbb726ac20d8 6 * You may obtain a copy of the License at
MikamiUitOpen 16:cbb726ac20d8 7 *
MikamiUitOpen 16:cbb726ac20d8 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 16:cbb726ac20d8 9 *
MikamiUitOpen 16:cbb726ac20d8 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 16:cbb726ac20d8 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 16:cbb726ac20d8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 16:cbb726ac20d8 13 * See the License for the specific language governing permissions and
MikamiUitOpen 16:cbb726ac20d8 14 * limitations under the License.
MikamiUitOpen 16:cbb726ac20d8 15 */
MikamiUitOpen 16:cbb726ac20d8 16 #include "Timer.h"
MikamiUitOpen 16:cbb726ac20d8 17 #include "ticker_api.h"
MikamiUitOpen 16:cbb726ac20d8 18 #include "us_ticker_api.h"
MikamiUitOpen 16:cbb726ac20d8 19
MikamiUitOpen 16:cbb726ac20d8 20 namespace mbed {
MikamiUitOpen 16:cbb726ac20d8 21
MikamiUitOpen 16:cbb726ac20d8 22 Timer::Timer() : _running(), _start(), _time(), _ticker_data(get_us_ticker_data()) {
MikamiUitOpen 16:cbb726ac20d8 23 reset();
MikamiUitOpen 16:cbb726ac20d8 24 }
MikamiUitOpen 16:cbb726ac20d8 25
MikamiUitOpen 16:cbb726ac20d8 26 Timer::Timer(const ticker_data_t *data) : _running(), _start(), _time(), _ticker_data(data) {
MikamiUitOpen 16:cbb726ac20d8 27 reset();
MikamiUitOpen 16:cbb726ac20d8 28 }
MikamiUitOpen 16:cbb726ac20d8 29
MikamiUitOpen 16:cbb726ac20d8 30 void Timer::start() {
MikamiUitOpen 16:cbb726ac20d8 31 if (!_running) {
MikamiUitOpen 16:cbb726ac20d8 32 _start = ticker_read(_ticker_data);
MikamiUitOpen 16:cbb726ac20d8 33 _running = 1;
MikamiUitOpen 16:cbb726ac20d8 34 }
MikamiUitOpen 16:cbb726ac20d8 35 }
MikamiUitOpen 16:cbb726ac20d8 36
MikamiUitOpen 16:cbb726ac20d8 37 void Timer::stop() {
MikamiUitOpen 16:cbb726ac20d8 38 _time += slicetime();
MikamiUitOpen 16:cbb726ac20d8 39 _running = 0;
MikamiUitOpen 16:cbb726ac20d8 40 }
MikamiUitOpen 16:cbb726ac20d8 41
MikamiUitOpen 16:cbb726ac20d8 42 int Timer::read_us() {
MikamiUitOpen 16:cbb726ac20d8 43 return _time + slicetime();
MikamiUitOpen 16:cbb726ac20d8 44 }
MikamiUitOpen 16:cbb726ac20d8 45
MikamiUitOpen 16:cbb726ac20d8 46 float Timer::read() {
MikamiUitOpen 16:cbb726ac20d8 47 return (float)read_us() / 1000000.0f;
MikamiUitOpen 16:cbb726ac20d8 48 }
MikamiUitOpen 16:cbb726ac20d8 49
MikamiUitOpen 16:cbb726ac20d8 50 int Timer::read_ms() {
MikamiUitOpen 16:cbb726ac20d8 51 return read_us() / 1000;
MikamiUitOpen 16:cbb726ac20d8 52 }
MikamiUitOpen 16:cbb726ac20d8 53
MikamiUitOpen 16:cbb726ac20d8 54 int Timer::slicetime() {
MikamiUitOpen 16:cbb726ac20d8 55 if (_running) {
MikamiUitOpen 16:cbb726ac20d8 56 return ticker_read(_ticker_data) - _start;
MikamiUitOpen 16:cbb726ac20d8 57 } else {
MikamiUitOpen 16:cbb726ac20d8 58 return 0;
MikamiUitOpen 16:cbb726ac20d8 59 }
MikamiUitOpen 16:cbb726ac20d8 60 }
MikamiUitOpen 16:cbb726ac20d8 61
MikamiUitOpen 16:cbb726ac20d8 62 void Timer::reset() {
MikamiUitOpen 16:cbb726ac20d8 63 _start = ticker_read(_ticker_data);
MikamiUitOpen 16:cbb726ac20d8 64 _time = 0;
MikamiUitOpen 16:cbb726ac20d8 65 }
MikamiUitOpen 16:cbb726ac20d8 66
MikamiUitOpen 16:cbb726ac20d8 67 #ifdef MBED_OPERATORS
MikamiUitOpen 16:cbb726ac20d8 68 Timer::operator float() {
MikamiUitOpen 16:cbb726ac20d8 69 return read();
MikamiUitOpen 16:cbb726ac20d8 70 }
MikamiUitOpen 16:cbb726ac20d8 71 #endif
MikamiUitOpen 16:cbb726ac20d8 72
MikamiUitOpen 16:cbb726ac20d8 73 } // namespace mbed