不韋 呂 / F746_Spectrogram

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/api/Timer.h@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?

UserRevisionLine numberNew contents of line
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 #ifndef MBED_TIMER_H
MikamiUitOpen 4:c1beacfc42c7 17 #define MBED_TIMER_H
MikamiUitOpen 4:c1beacfc42c7 18
MikamiUitOpen 4:c1beacfc42c7 19 #include "platform.h"
MikamiUitOpen 4:c1beacfc42c7 20 #include "ticker_api.h"
MikamiUitOpen 4:c1beacfc42c7 21
MikamiUitOpen 4:c1beacfc42c7 22 namespace mbed {
MikamiUitOpen 4:c1beacfc42c7 23
MikamiUitOpen 4:c1beacfc42c7 24 /** A general purpose timer
MikamiUitOpen 4:c1beacfc42c7 25 *
MikamiUitOpen 4:c1beacfc42c7 26 * Example:
MikamiUitOpen 4:c1beacfc42c7 27 * @code
MikamiUitOpen 4:c1beacfc42c7 28 * // Count the time to toggle a LED
MikamiUitOpen 4:c1beacfc42c7 29 *
MikamiUitOpen 4:c1beacfc42c7 30 * #include "mbed.h"
MikamiUitOpen 4:c1beacfc42c7 31 *
MikamiUitOpen 4:c1beacfc42c7 32 * Timer timer;
MikamiUitOpen 4:c1beacfc42c7 33 * DigitalOut led(LED1);
MikamiUitOpen 4:c1beacfc42c7 34 * int begin, end;
MikamiUitOpen 4:c1beacfc42c7 35 *
MikamiUitOpen 4:c1beacfc42c7 36 * int main() {
MikamiUitOpen 4:c1beacfc42c7 37 * timer.start();
MikamiUitOpen 4:c1beacfc42c7 38 * begin = timer.read_us();
MikamiUitOpen 4:c1beacfc42c7 39 * led = !led;
MikamiUitOpen 4:c1beacfc42c7 40 * end = timer.read_us();
MikamiUitOpen 4:c1beacfc42c7 41 * printf("Toggle the led takes %d us", end - begin);
MikamiUitOpen 4:c1beacfc42c7 42 * }
MikamiUitOpen 4:c1beacfc42c7 43 * @endcode
MikamiUitOpen 4:c1beacfc42c7 44 */
MikamiUitOpen 4:c1beacfc42c7 45 class Timer {
MikamiUitOpen 4:c1beacfc42c7 46
MikamiUitOpen 4:c1beacfc42c7 47 public:
MikamiUitOpen 4:c1beacfc42c7 48 Timer();
MikamiUitOpen 4:c1beacfc42c7 49 Timer(const ticker_data_t *data);
MikamiUitOpen 4:c1beacfc42c7 50
MikamiUitOpen 4:c1beacfc42c7 51 /** Start the timer
MikamiUitOpen 4:c1beacfc42c7 52 */
MikamiUitOpen 4:c1beacfc42c7 53 void start();
MikamiUitOpen 4:c1beacfc42c7 54
MikamiUitOpen 4:c1beacfc42c7 55 /** Stop the timer
MikamiUitOpen 4:c1beacfc42c7 56 */
MikamiUitOpen 4:c1beacfc42c7 57 void stop();
MikamiUitOpen 4:c1beacfc42c7 58
MikamiUitOpen 4:c1beacfc42c7 59 /** Reset the timer to 0.
MikamiUitOpen 4:c1beacfc42c7 60 *
MikamiUitOpen 4:c1beacfc42c7 61 * If it was already counting, it will continue
MikamiUitOpen 4:c1beacfc42c7 62 */
MikamiUitOpen 4:c1beacfc42c7 63 void reset();
MikamiUitOpen 4:c1beacfc42c7 64
MikamiUitOpen 4:c1beacfc42c7 65 /** Get the time passed in seconds
MikamiUitOpen 4:c1beacfc42c7 66 */
MikamiUitOpen 4:c1beacfc42c7 67 float read();
MikamiUitOpen 4:c1beacfc42c7 68
MikamiUitOpen 4:c1beacfc42c7 69 /** Get the time passed in mili-seconds
MikamiUitOpen 4:c1beacfc42c7 70 */
MikamiUitOpen 4:c1beacfc42c7 71 int read_ms();
MikamiUitOpen 4:c1beacfc42c7 72
MikamiUitOpen 4:c1beacfc42c7 73 /** Get the time passed in micro-seconds
MikamiUitOpen 4:c1beacfc42c7 74 */
MikamiUitOpen 4:c1beacfc42c7 75 int read_us();
MikamiUitOpen 4:c1beacfc42c7 76
MikamiUitOpen 4:c1beacfc42c7 77 #ifdef MBED_OPERATORS
MikamiUitOpen 4:c1beacfc42c7 78 operator float();
MikamiUitOpen 4:c1beacfc42c7 79 #endif
MikamiUitOpen 4:c1beacfc42c7 80
MikamiUitOpen 4:c1beacfc42c7 81 protected:
MikamiUitOpen 4:c1beacfc42c7 82 int slicetime();
MikamiUitOpen 4:c1beacfc42c7 83 int _running; // whether the timer is running
MikamiUitOpen 4:c1beacfc42c7 84 unsigned int _start; // the start time of the latest slice
MikamiUitOpen 4:c1beacfc42c7 85 int _time; // any accumulated time from previous slices
MikamiUitOpen 4:c1beacfc42c7 86 const ticker_data_t *_ticker_data;
MikamiUitOpen 4:c1beacfc42c7 87 };
MikamiUitOpen 4:c1beacfc42c7 88
MikamiUitOpen 4:c1beacfc42c7 89 } // namespace mbed
MikamiUitOpen 4:c1beacfc42c7 90
MikamiUitOpen 4:c1beacfc42c7 91 #endif