George Roussos / BLE_Temperature

BLE temperature profile using digital DS1820 or analog LM35 sensors

Dependencies:   DS1820

mbed/Timer.h@0:637031152314, 2015-03-07 (annotated)

Committer:
gkroussos
Date:
Sat Mar 07 16:23:41 2015 +0000
Revision:
0:637031152314
Working version 1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gkroussos 0:637031152314 1 /* mbed Microcontroller Library
gkroussos 0:637031152314 2 * Copyright (c) 2006-2013 ARM Limited
gkroussos 0:637031152314 3 *
gkroussos 0:637031152314 4 * Licensed under the Apache License, Version 2.0 (the "License");
gkroussos 0:637031152314 5 * you may not use this file except in compliance with the License.
gkroussos 0:637031152314 6 * You may obtain a copy of the License at
gkroussos 0:637031152314 7 *
gkroussos 0:637031152314 8 * http://www.apache.org/licenses/LICENSE-2.0
gkroussos 0:637031152314 9 *
gkroussos 0:637031152314 10 * Unless required by applicable law or agreed to in writing, software
gkroussos 0:637031152314 11 * distributed under the License is distributed on an "AS IS" BASIS,
gkroussos 0:637031152314 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
gkroussos 0:637031152314 13 * See the License for the specific language governing permissions and
gkroussos 0:637031152314 14 * limitations under the License.
gkroussos 0:637031152314 15 */
gkroussos 0:637031152314 16 #ifndef MBED_TIMER_H
gkroussos 0:637031152314 17 #define MBED_TIMER_H
gkroussos 0:637031152314 18
gkroussos 0:637031152314 19 #include "platform.h"
gkroussos 0:637031152314 20
gkroussos 0:637031152314 21 namespace mbed {
gkroussos 0:637031152314 22
gkroussos 0:637031152314 23 /** A general purpose timer
gkroussos 0:637031152314 24 *
gkroussos 0:637031152314 25 * Example:
gkroussos 0:637031152314 26 * @code
gkroussos 0:637031152314 27 * // Count the time to toggle a LED
gkroussos 0:637031152314 28 *
gkroussos 0:637031152314 29 * #include "mbed.h"
gkroussos 0:637031152314 30 *
gkroussos 0:637031152314 31 * Timer timer;
gkroussos 0:637031152314 32 * DigitalOut led(LED1);
gkroussos 0:637031152314 33 * int begin, end;
gkroussos 0:637031152314 34 *
gkroussos 0:637031152314 35 * int main() {
gkroussos 0:637031152314 36 * timer.start();
gkroussos 0:637031152314 37 * begin = timer.read_us();
gkroussos 0:637031152314 38 * led = !led;
gkroussos 0:637031152314 39 * end = timer.read_us();
gkroussos 0:637031152314 40 * printf("Toggle the led takes %d us", end - begin);
gkroussos 0:637031152314 41 * }
gkroussos 0:637031152314 42 * @endcode
gkroussos 0:637031152314 43 */
gkroussos 0:637031152314 44 class Timer {
gkroussos 0:637031152314 45
gkroussos 0:637031152314 46 public:
gkroussos 0:637031152314 47 Timer();
gkroussos 0:637031152314 48
gkroussos 0:637031152314 49 /** Start the timer
gkroussos 0:637031152314 50 */
gkroussos 0:637031152314 51 void start();
gkroussos 0:637031152314 52
gkroussos 0:637031152314 53 /** Stop the timer
gkroussos 0:637031152314 54 */
gkroussos 0:637031152314 55 void stop();
gkroussos 0:637031152314 56
gkroussos 0:637031152314 57 /** Reset the timer to 0.
gkroussos 0:637031152314 58 *
gkroussos 0:637031152314 59 * If it was already counting, it will continue
gkroussos 0:637031152314 60 */
gkroussos 0:637031152314 61 void reset();
gkroussos 0:637031152314 62
gkroussos 0:637031152314 63 /** Get the time passed in seconds
gkroussos 0:637031152314 64 */
gkroussos 0:637031152314 65 float read();
gkroussos 0:637031152314 66
gkroussos 0:637031152314 67 /** Get the time passed in mili-seconds
gkroussos 0:637031152314 68 */
gkroussos 0:637031152314 69 int read_ms();
gkroussos 0:637031152314 70
gkroussos 0:637031152314 71 /** Get the time passed in micro-seconds
gkroussos 0:637031152314 72 */
gkroussos 0:637031152314 73 int read_us();
gkroussos 0:637031152314 74
gkroussos 0:637031152314 75 #ifdef MBED_OPERATORS
gkroussos 0:637031152314 76 operator float();
gkroussos 0:637031152314 77 #endif
gkroussos 0:637031152314 78
gkroussos 0:637031152314 79 protected:
gkroussos 0:637031152314 80 int slicetime();
gkroussos 0:637031152314 81 int _running; // whether the timer is running
gkroussos 0:637031152314 82 unsigned int _start; // the start time of the latest slice
gkroussos 0:637031152314 83 int _time; // any accumulated time from previous slices
gkroussos 0:637031152314 84 };
gkroussos 0:637031152314 85
gkroussos 0:637031152314 86 } // namespace mbed
gkroussos 0:637031152314 87
gkroussos 0:637031152314 88 #endif