George Roussos / BLE_Temperature_Exercise

BLE Temperature Service Mobile and Ubiquitous Computing Module Birkbeck College

Dependencies:   DS1820

mbed/Ticker.h@0:dd0fea342ad2, 2015-03-08 (annotated)

Committer:
gkroussos
Date:
Sun Mar 08 19:42:20 2015 +0000
Revision:
0:dd0fea342ad2
BLE Temperature Service ; Mobile and Ubiquitous Computing Module; Birkbeck College

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gkroussos 0:dd0fea342ad2 1 /* mbed Microcontroller Library
gkroussos 0:dd0fea342ad2 2 * Copyright (c) 2006-2013 ARM Limited
gkroussos 0:dd0fea342ad2 3 *
gkroussos 0:dd0fea342ad2 4 * Licensed under the Apache License, Version 2.0 (the "License");
gkroussos 0:dd0fea342ad2 5 * you may not use this file except in compliance with the License.
gkroussos 0:dd0fea342ad2 6 * You may obtain a copy of the License at
gkroussos 0:dd0fea342ad2 7 *
gkroussos 0:dd0fea342ad2 8 * http://www.apache.org/licenses/LICENSE-2.0
gkroussos 0:dd0fea342ad2 9 *
gkroussos 0:dd0fea342ad2 10 * Unless required by applicable law or agreed to in writing, software
gkroussos 0:dd0fea342ad2 11 * distributed under the License is distributed on an "AS IS" BASIS,
gkroussos 0:dd0fea342ad2 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
gkroussos 0:dd0fea342ad2 13 * See the License for the specific language governing permissions and
gkroussos 0:dd0fea342ad2 14 * limitations under the License.
gkroussos 0:dd0fea342ad2 15 */
gkroussos 0:dd0fea342ad2 16 #ifndef MBED_TICKER_H
gkroussos 0:dd0fea342ad2 17 #define MBED_TICKER_H
gkroussos 0:dd0fea342ad2 18
gkroussos 0:dd0fea342ad2 19 #include "TimerEvent.h"
gkroussos 0:dd0fea342ad2 20 #include "FunctionPointer.h"
gkroussos 0:dd0fea342ad2 21
gkroussos 0:dd0fea342ad2 22 namespace mbed {
gkroussos 0:dd0fea342ad2 23
gkroussos 0:dd0fea342ad2 24 /** A Ticker is used to call a function at a recurring interval
gkroussos 0:dd0fea342ad2 25 *
gkroussos 0:dd0fea342ad2 26 * You can use as many seperate Ticker objects as you require.
gkroussos 0:dd0fea342ad2 27 *
gkroussos 0:dd0fea342ad2 28 * Example:
gkroussos 0:dd0fea342ad2 29 * @code
gkroussos 0:dd0fea342ad2 30 * // Toggle the blinking led after 5 seconds
gkroussos 0:dd0fea342ad2 31 *
gkroussos 0:dd0fea342ad2 32 * #include "mbed.h"
gkroussos 0:dd0fea342ad2 33 *
gkroussos 0:dd0fea342ad2 34 * Ticker timer;
gkroussos 0:dd0fea342ad2 35 * DigitalOut led1(LED1);
gkroussos 0:dd0fea342ad2 36 * DigitalOut led2(LED2);
gkroussos 0:dd0fea342ad2 37 *
gkroussos 0:dd0fea342ad2 38 * int flip = 0;
gkroussos 0:dd0fea342ad2 39 *
gkroussos 0:dd0fea342ad2 40 * void attime() {
gkroussos 0:dd0fea342ad2 41 * flip = !flip;
gkroussos 0:dd0fea342ad2 42 * }
gkroussos 0:dd0fea342ad2 43 *
gkroussos 0:dd0fea342ad2 44 * int main() {
gkroussos 0:dd0fea342ad2 45 * timer.attach(&attime, 5);
gkroussos 0:dd0fea342ad2 46 * while(1) {
gkroussos 0:dd0fea342ad2 47 * if(flip == 0) {
gkroussos 0:dd0fea342ad2 48 * led1 = !led1;
gkroussos 0:dd0fea342ad2 49 * } else {
gkroussos 0:dd0fea342ad2 50 * led2 = !led2;
gkroussos 0:dd0fea342ad2 51 * }
gkroussos 0:dd0fea342ad2 52 * wait(0.2);
gkroussos 0:dd0fea342ad2 53 * }
gkroussos 0:dd0fea342ad2 54 * }
gkroussos 0:dd0fea342ad2 55 * @endcode
gkroussos 0:dd0fea342ad2 56 */
gkroussos 0:dd0fea342ad2 57 class Ticker : public TimerEvent {
gkroussos 0:dd0fea342ad2 58
gkroussos 0:dd0fea342ad2 59 public:
gkroussos 0:dd0fea342ad2 60
gkroussos 0:dd0fea342ad2 61 /** Attach a function to be called by the Ticker, specifiying the interval in seconds
gkroussos 0:dd0fea342ad2 62 *
gkroussos 0:dd0fea342ad2 63 * @param fptr pointer to the function to be called
gkroussos 0:dd0fea342ad2 64 * @param t the time between calls in seconds
gkroussos 0:dd0fea342ad2 65 */
gkroussos 0:dd0fea342ad2 66 void attach(void (*fptr)(void), float t) {
gkroussos 0:dd0fea342ad2 67 attach_us(fptr, t * 1000000.0f);
gkroussos 0:dd0fea342ad2 68 }
gkroussos 0:dd0fea342ad2 69
gkroussos 0:dd0fea342ad2 70 /** Attach a member function to be called by the Ticker, specifiying the interval in seconds
gkroussos 0:dd0fea342ad2 71 *
gkroussos 0:dd0fea342ad2 72 * @param tptr pointer to the object to call the member function on
gkroussos 0:dd0fea342ad2 73 * @param mptr pointer to the member function to be called
gkroussos 0:dd0fea342ad2 74 * @param t the time between calls in seconds
gkroussos 0:dd0fea342ad2 75 */
gkroussos 0:dd0fea342ad2 76 template<typename T>
gkroussos 0:dd0fea342ad2 77 void attach(T* tptr, void (T::*mptr)(void), float t) {
gkroussos 0:dd0fea342ad2 78 attach_us(tptr, mptr, t * 1000000.0f);
gkroussos 0:dd0fea342ad2 79 }
gkroussos 0:dd0fea342ad2 80
gkroussos 0:dd0fea342ad2 81 /** Attach a function to be called by the Ticker, specifiying the interval in micro-seconds
gkroussos 0:dd0fea342ad2 82 *
gkroussos 0:dd0fea342ad2 83 * @param fptr pointer to the function to be called
gkroussos 0:dd0fea342ad2 84 * @param t the time between calls in micro-seconds
gkroussos 0:dd0fea342ad2 85 */
gkroussos 0:dd0fea342ad2 86 void attach_us(void (*fptr)(void), unsigned int t) {
gkroussos 0:dd0fea342ad2 87 _function.attach(fptr);
gkroussos 0:dd0fea342ad2 88 setup(t);
gkroussos 0:dd0fea342ad2 89 }
gkroussos 0:dd0fea342ad2 90
gkroussos 0:dd0fea342ad2 91 /** Attach a member function to be called by the Ticker, specifiying the interval in micro-seconds
gkroussos 0:dd0fea342ad2 92 *
gkroussos 0:dd0fea342ad2 93 * @param tptr pointer to the object to call the member function on
gkroussos 0:dd0fea342ad2 94 * @param mptr pointer to the member function to be called
gkroussos 0:dd0fea342ad2 95 * @param t the time between calls in micro-seconds
gkroussos 0:dd0fea342ad2 96 */
gkroussos 0:dd0fea342ad2 97 template<typename T>
gkroussos 0:dd0fea342ad2 98 void attach_us(T* tptr, void (T::*mptr)(void), unsigned int t) {
gkroussos 0:dd0fea342ad2 99 _function.attach(tptr, mptr);
gkroussos 0:dd0fea342ad2 100 setup(t);
gkroussos 0:dd0fea342ad2 101 }
gkroussos 0:dd0fea342ad2 102
gkroussos 0:dd0fea342ad2 103 /** Detach the function
gkroussos 0:dd0fea342ad2 104 */
gkroussos 0:dd0fea342ad2 105 void detach();
gkroussos 0:dd0fea342ad2 106
gkroussos 0:dd0fea342ad2 107 protected:
gkroussos 0:dd0fea342ad2 108 void setup(unsigned int t);
gkroussos 0:dd0fea342ad2 109 virtual void handler();
gkroussos 0:dd0fea342ad2 110
gkroussos 0:dd0fea342ad2 111 unsigned int _delay;
gkroussos 0:dd0fea342ad2 112 FunctionPointer _function;
gkroussos 0:dd0fea342ad2 113 };
gkroussos 0:dd0fea342ad2 114
gkroussos 0:dd0fea342ad2 115 } // namespace mbed
gkroussos 0:dd0fea342ad2 116
gkroussos 0:dd0fea342ad2 117 #endif