SDK Development / mbed-src

mbed SDK library sources

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Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

api/Timer.h@9:0ce32e54c9a7, 2013-06-10 (annotated)

Committer:
emilmont
Date:
Mon Jun 10 16:03:00 2013 +0100
Revision:
9:0ce32e54c9a7
Parent:
cpp/Timer.h@2:143cac498751
Child:
10:3bc89ef62ce7
Refactoring of the mbed SDK:

- Provide a well defined HAL and API

- Keep separated the HAL implementations for the different targets

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:fd0d7bdfcdc2 1 /* mbed Microcontroller Library
emilmont 2:143cac498751 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 0:fd0d7bdfcdc2 3 *
emilmont 2:143cac498751 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 2:143cac498751 5 * you may not use this file except in compliance with the License.
emilmont 2:143cac498751 6 * You may obtain a copy of the License at
mbed_official 0:fd0d7bdfcdc2 7 *
emilmont 2:143cac498751 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 0:fd0d7bdfcdc2 9 *
emilmont 2:143cac498751 10 * Unless required by applicable law or agreed to in writing, software
emilmont 2:143cac498751 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 2:143cac498751 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 2:143cac498751 13 * See the License for the specific language governing permissions and
emilmont 2:143cac498751 14 * limitations under the License.
mbed_official 0:fd0d7bdfcdc2 15 */
mbed_official 0:fd0d7bdfcdc2 16 #ifndef MBED_TIMER_H
mbed_official 0:fd0d7bdfcdc2 17 #define MBED_TIMER_H
mbed_official 0:fd0d7bdfcdc2 18
mbed_official 0:fd0d7bdfcdc2 19 #include "platform.h"
mbed_official 0:fd0d7bdfcdc2 20
mbed_official 0:fd0d7bdfcdc2 21 namespace mbed {
mbed_official 0:fd0d7bdfcdc2 22
emilmont 2:143cac498751 23 /** A general purpose timer
mbed_official 0:fd0d7bdfcdc2 24 *
mbed_official 0:fd0d7bdfcdc2 25 * Example:
mbed_official 0:fd0d7bdfcdc2 26 * @code
mbed_official 0:fd0d7bdfcdc2 27 * // Count the time to toggle a LED
mbed_official 0:fd0d7bdfcdc2 28 *
mbed_official 0:fd0d7bdfcdc2 29 * #include "mbed.h"
emilmont 2:143cac498751 30 *
mbed_official 0:fd0d7bdfcdc2 31 * Timer timer;
mbed_official 0:fd0d7bdfcdc2 32 * DigitalOut led(LED1);
mbed_official 0:fd0d7bdfcdc2 33 * int begin, end;
emilmont 2:143cac498751 34 *
mbed_official 0:fd0d7bdfcdc2 35 * int main() {
mbed_official 0:fd0d7bdfcdc2 36 * timer.start();
mbed_official 0:fd0d7bdfcdc2 37 * begin = timer.read_us();
mbed_official 0:fd0d7bdfcdc2 38 * led = !led;
mbed_official 0:fd0d7bdfcdc2 39 * end = timer.read_us();
mbed_official 0:fd0d7bdfcdc2 40 * printf("Toggle the led takes %d us", end - begin);
mbed_official 0:fd0d7bdfcdc2 41 * }
mbed_official 0:fd0d7bdfcdc2 42 * @endcode
mbed_official 0:fd0d7bdfcdc2 43 */
mbed_official 0:fd0d7bdfcdc2 44 class Timer {
mbed_official 0:fd0d7bdfcdc2 45
mbed_official 0:fd0d7bdfcdc2 46 public:
mbed_official 0:fd0d7bdfcdc2 47 Timer();
emilmont 2:143cac498751 48
mbed_official 0:fd0d7bdfcdc2 49 /** Start the timer
mbed_official 0:fd0d7bdfcdc2 50 */
emilmont 2:143cac498751 51 void start();
mbed_official 0:fd0d7bdfcdc2 52
mbed_official 0:fd0d7bdfcdc2 53 /** Stop the timer
mbed_official 0:fd0d7bdfcdc2 54 */
emilmont 2:143cac498751 55 void stop();
mbed_official 0:fd0d7bdfcdc2 56
emilmont 2:143cac498751 57 /** Reset the timer to 0.
mbed_official 0:fd0d7bdfcdc2 58 *
mbed_official 0:fd0d7bdfcdc2 59 * If it was already counting, it will continue
mbed_official 0:fd0d7bdfcdc2 60 */
mbed_official 0:fd0d7bdfcdc2 61 void reset();
mbed_official 0:fd0d7bdfcdc2 62
mbed_official 0:fd0d7bdfcdc2 63 /** Get the time passed in seconds
mbed_official 0:fd0d7bdfcdc2 64 */
mbed_official 0:fd0d7bdfcdc2 65 float read();
mbed_official 0:fd0d7bdfcdc2 66
mbed_official 0:fd0d7bdfcdc2 67 /** Get the time passed in mili-seconds
mbed_official 0:fd0d7bdfcdc2 68 */
mbed_official 0:fd0d7bdfcdc2 69 int read_ms();
mbed_official 0:fd0d7bdfcdc2 70
mbed_official 0:fd0d7bdfcdc2 71 /** Get the time passed in micro-seconds
mbed_official 0:fd0d7bdfcdc2 72 */
mbed_official 0:fd0d7bdfcdc2 73 int read_us();
mbed_official 0:fd0d7bdfcdc2 74
emilmont 2:143cac498751 75 #ifdef MBED_OPERATORS
mbed_official 0:fd0d7bdfcdc2 76 operator float();
mbed_official 0:fd0d7bdfcdc2 77 #endif
mbed_official 0:fd0d7bdfcdc2 78
mbed_official 0:fd0d7bdfcdc2 79 protected:
mbed_official 0:fd0d7bdfcdc2 80 int slicetime();
mbed_official 0:fd0d7bdfcdc2 81 int _running; // whether the timer is running
mbed_official 0:fd0d7bdfcdc2 82 unsigned int _start; // the start time of the latest slice
mbed_official 0:fd0d7bdfcdc2 83 int _time; // any accumulated time from previous slices
mbed_official 0:fd0d7bdfcdc2 84 };
mbed_official 0:fd0d7bdfcdc2 85
mbed_official 0:fd0d7bdfcdc2 86 } // namespace mbed
mbed_official 0:fd0d7bdfcdc2 87
mbed_official 0:fd0d7bdfcdc2 88 #endif