nguyen nam / SRC_STM32F7

SPKT

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api/Timer.h@0:e87aa4c49e95, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:51:46 2019 +0000
Revision:
0:e87aa4c49e95
libray

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:e87aa4c49e95 1 /* mbed Microcontroller Library
phungductung 0:e87aa4c49e95 2 * Copyright (c) 2006-2013 ARM Limited
phungductung 0:e87aa4c49e95 3 *
phungductung 0:e87aa4c49e95 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:e87aa4c49e95 5 * you may not use this file except in compliance with the License.
phungductung 0:e87aa4c49e95 6 * You may obtain a copy of the License at
phungductung 0:e87aa4c49e95 7 *
phungductung 0:e87aa4c49e95 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:e87aa4c49e95 9 *
phungductung 0:e87aa4c49e95 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:e87aa4c49e95 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:e87aa4c49e95 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:e87aa4c49e95 13 * See the License for the specific language governing permissions and
phungductung 0:e87aa4c49e95 14 * limitations under the License.
phungductung 0:e87aa4c49e95 15 */
phungductung 0:e87aa4c49e95 16 #ifndef MBED_TIMER_H
phungductung 0:e87aa4c49e95 17 #define MBED_TIMER_H
phungductung 0:e87aa4c49e95 18
phungductung 0:e87aa4c49e95 19 #include "platform.h"
phungductung 0:e87aa4c49e95 20 #include "ticker_api.h"
phungductung 0:e87aa4c49e95 21
phungductung 0:e87aa4c49e95 22 namespace mbed {
phungductung 0:e87aa4c49e95 23
phungductung 0:e87aa4c49e95 24 /** A general purpose timer
phungductung 0:e87aa4c49e95 25 *
phungductung 0:e87aa4c49e95 26 * Example:
phungductung 0:e87aa4c49e95 27 * @code
phungductung 0:e87aa4c49e95 28 * // Count the time to toggle a LED
phungductung 0:e87aa4c49e95 29 *
phungductung 0:e87aa4c49e95 30 * #include "mbed.h"
phungductung 0:e87aa4c49e95 31 *
phungductung 0:e87aa4c49e95 32 * Timer timer;
phungductung 0:e87aa4c49e95 33 * DigitalOut led(LED1);
phungductung 0:e87aa4c49e95 34 * int begin, end;
phungductung 0:e87aa4c49e95 35 *
phungductung 0:e87aa4c49e95 36 * int main() {
phungductung 0:e87aa4c49e95 37 * timer.start();
phungductung 0:e87aa4c49e95 38 * begin = timer.read_us();
phungductung 0:e87aa4c49e95 39 * led = !led;
phungductung 0:e87aa4c49e95 40 * end = timer.read_us();
phungductung 0:e87aa4c49e95 41 * printf("Toggle the led takes %d us", end - begin);
phungductung 0:e87aa4c49e95 42 * }
phungductung 0:e87aa4c49e95 43 * @endcode
phungductung 0:e87aa4c49e95 44 */
phungductung 0:e87aa4c49e95 45 class Timer {
phungductung 0:e87aa4c49e95 46
phungductung 0:e87aa4c49e95 47 public:
phungductung 0:e87aa4c49e95 48 Timer();
phungductung 0:e87aa4c49e95 49 Timer(const ticker_data_t *data);
phungductung 0:e87aa4c49e95 50
phungductung 0:e87aa4c49e95 51 /** Start the timer
phungductung 0:e87aa4c49e95 52 */
phungductung 0:e87aa4c49e95 53 void start();
phungductung 0:e87aa4c49e95 54
phungductung 0:e87aa4c49e95 55 /** Stop the timer
phungductung 0:e87aa4c49e95 56 */
phungductung 0:e87aa4c49e95 57 void stop();
phungductung 0:e87aa4c49e95 58
phungductung 0:e87aa4c49e95 59 /** Reset the timer to 0.
phungductung 0:e87aa4c49e95 60 *
phungductung 0:e87aa4c49e95 61 * If it was already counting, it will continue
phungductung 0:e87aa4c49e95 62 */
phungductung 0:e87aa4c49e95 63 void reset();
phungductung 0:e87aa4c49e95 64
phungductung 0:e87aa4c49e95 65 /** Get the time passed in seconds
phungductung 0:e87aa4c49e95 66 */
phungductung 0:e87aa4c49e95 67 float read();
phungductung 0:e87aa4c49e95 68
phungductung 0:e87aa4c49e95 69 /** Get the time passed in mili-seconds
phungductung 0:e87aa4c49e95 70 */
phungductung 0:e87aa4c49e95 71 int read_ms();
phungductung 0:e87aa4c49e95 72
phungductung 0:e87aa4c49e95 73 /** Get the time passed in micro-seconds
phungductung 0:e87aa4c49e95 74 */
phungductung 0:e87aa4c49e95 75 int read_us();
phungductung 0:e87aa4c49e95 76
phungductung 0:e87aa4c49e95 77 #ifdef MBED_OPERATORS
phungductung 0:e87aa4c49e95 78 operator float();
phungductung 0:e87aa4c49e95 79 #endif
phungductung 0:e87aa4c49e95 80
phungductung 0:e87aa4c49e95 81 protected:
phungductung 0:e87aa4c49e95 82 int slicetime();
phungductung 0:e87aa4c49e95 83 int _running; // whether the timer is running
phungductung 0:e87aa4c49e95 84 unsigned int _start; // the start time of the latest slice
phungductung 0:e87aa4c49e95 85 int _time; // any accumulated time from previous slices
phungductung 0:e87aa4c49e95 86 const ticker_data_t *_ticker_data;
phungductung 0:e87aa4c49e95 87 };
phungductung 0:e87aa4c49e95 88
phungductung 0:e87aa4c49e95 89 } // namespace mbed
phungductung 0:e87aa4c49e95 90
phungductung 0:e87aa4c49e95 91 #endif