Opencv 3.1 project on GR-PEACH board
Fork of gr-peach-opencv-project by
drivers/Timer.h@170:54ff26da7eb6, 2017-07-04 (annotated)
- Committer:
- thedo
- Date:
- Tue Jul 04 06:23:13 2017 +0000
- Revision:
- 170:54ff26da7eb6
- Parent:
- 167:1657b442184c
project opencv 3.1 on GR PEACH board, no use SD card.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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thedo | 167:1657b442184c | 1 | /* mbed Microcontroller Library |
thedo | 167:1657b442184c | 2 | * Copyright (c) 2006-2013 ARM Limited |
thedo | 167:1657b442184c | 3 | * |
thedo | 167:1657b442184c | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
thedo | 167:1657b442184c | 5 | * you may not use this file except in compliance with the License. |
thedo | 167:1657b442184c | 6 | * You may obtain a copy of the License at |
thedo | 167:1657b442184c | 7 | * |
thedo | 167:1657b442184c | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
thedo | 167:1657b442184c | 9 | * |
thedo | 167:1657b442184c | 10 | * Unless required by applicable law or agreed to in writing, software |
thedo | 167:1657b442184c | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
thedo | 167:1657b442184c | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
thedo | 167:1657b442184c | 13 | * See the License for the specific language governing permissions and |
thedo | 167:1657b442184c | 14 | * limitations under the License. |
thedo | 167:1657b442184c | 15 | */ |
thedo | 167:1657b442184c | 16 | #ifndef MBED_TIMER_H |
thedo | 167:1657b442184c | 17 | #define MBED_TIMER_H |
thedo | 167:1657b442184c | 18 | |
thedo | 167:1657b442184c | 19 | #include "platform/platform.h" |
thedo | 167:1657b442184c | 20 | #include "hal/ticker_api.h" |
thedo | 167:1657b442184c | 21 | |
thedo | 167:1657b442184c | 22 | namespace mbed { |
thedo | 167:1657b442184c | 23 | /** \addtogroup drivers */ |
thedo | 167:1657b442184c | 24 | |
thedo | 167:1657b442184c | 25 | /** A general purpose timer |
thedo | 167:1657b442184c | 26 | * |
thedo | 167:1657b442184c | 27 | * @note Synchronization level: Interrupt safe |
thedo | 167:1657b442184c | 28 | * |
thedo | 167:1657b442184c | 29 | * Example: |
thedo | 167:1657b442184c | 30 | * @code |
thedo | 167:1657b442184c | 31 | * // Count the time to toggle a LED |
thedo | 167:1657b442184c | 32 | * |
thedo | 167:1657b442184c | 33 | * #include "mbed.h" |
thedo | 167:1657b442184c | 34 | * |
thedo | 167:1657b442184c | 35 | * Timer timer; |
thedo | 167:1657b442184c | 36 | * DigitalOut led(LED1); |
thedo | 167:1657b442184c | 37 | * int begin, end; |
thedo | 167:1657b442184c | 38 | * |
thedo | 167:1657b442184c | 39 | * int main() { |
thedo | 167:1657b442184c | 40 | * timer.start(); |
thedo | 167:1657b442184c | 41 | * begin = timer.read_us(); |
thedo | 167:1657b442184c | 42 | * led = !led; |
thedo | 167:1657b442184c | 43 | * end = timer.read_us(); |
thedo | 167:1657b442184c | 44 | * printf("Toggle the led takes %d us", end - begin); |
thedo | 167:1657b442184c | 45 | * } |
thedo | 167:1657b442184c | 46 | * @endcode |
thedo | 167:1657b442184c | 47 | * @ingroup drivers |
thedo | 167:1657b442184c | 48 | */ |
thedo | 167:1657b442184c | 49 | class Timer { |
thedo | 167:1657b442184c | 50 | |
thedo | 167:1657b442184c | 51 | public: |
thedo | 167:1657b442184c | 52 | Timer(); |
thedo | 167:1657b442184c | 53 | Timer(const ticker_data_t *data); |
thedo | 167:1657b442184c | 54 | |
thedo | 167:1657b442184c | 55 | /** Start the timer |
thedo | 167:1657b442184c | 56 | */ |
thedo | 167:1657b442184c | 57 | void start(); |
thedo | 167:1657b442184c | 58 | |
thedo | 167:1657b442184c | 59 | /** Stop the timer |
thedo | 167:1657b442184c | 60 | */ |
thedo | 167:1657b442184c | 61 | void stop(); |
thedo | 167:1657b442184c | 62 | |
thedo | 167:1657b442184c | 63 | /** Reset the timer to 0. |
thedo | 167:1657b442184c | 64 | * |
thedo | 167:1657b442184c | 65 | * If it was already counting, it will continue |
thedo | 167:1657b442184c | 66 | */ |
thedo | 167:1657b442184c | 67 | void reset(); |
thedo | 167:1657b442184c | 68 | |
thedo | 167:1657b442184c | 69 | /** Get the time passed in seconds |
thedo | 167:1657b442184c | 70 | */ |
thedo | 167:1657b442184c | 71 | float read(); |
thedo | 167:1657b442184c | 72 | |
thedo | 167:1657b442184c | 73 | /** Get the time passed in mili-seconds |
thedo | 167:1657b442184c | 74 | */ |
thedo | 167:1657b442184c | 75 | int read_ms(); |
thedo | 167:1657b442184c | 76 | |
thedo | 167:1657b442184c | 77 | /** Get the time passed in micro-seconds |
thedo | 167:1657b442184c | 78 | */ |
thedo | 167:1657b442184c | 79 | int read_us(); |
thedo | 167:1657b442184c | 80 | |
thedo | 167:1657b442184c | 81 | /** An operator shorthand for read() |
thedo | 167:1657b442184c | 82 | */ |
thedo | 167:1657b442184c | 83 | operator float(); |
thedo | 167:1657b442184c | 84 | |
thedo | 167:1657b442184c | 85 | /** Get in a high resolution type the time passed in micro-seconds. |
thedo | 167:1657b442184c | 86 | */ |
thedo | 167:1657b442184c | 87 | us_timestamp_t read_high_resolution_us(); |
thedo | 167:1657b442184c | 88 | |
thedo | 167:1657b442184c | 89 | protected: |
thedo | 167:1657b442184c | 90 | us_timestamp_t slicetime(); |
thedo | 167:1657b442184c | 91 | int _running; // whether the timer is running |
thedo | 167:1657b442184c | 92 | us_timestamp_t _start; // the start time of the latest slice |
thedo | 167:1657b442184c | 93 | us_timestamp_t _time; // any accumulated time from previous slices |
thedo | 167:1657b442184c | 94 | const ticker_data_t *_ticker_data; |
thedo | 167:1657b442184c | 95 | }; |
thedo | 167:1657b442184c | 96 | |
thedo | 167:1657b442184c | 97 | } // namespace mbed |
thedo | 167:1657b442184c | 98 | |
thedo | 167:1657b442184c | 99 | #endif |
thedo | 167:1657b442184c | 100 |