mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

drivers/Ticker.h@168:9672193075cf, 2017-07-06 (annotated)

Committer:
AnnaBridge
Date:
Thu Jul 06 15:42:05 2017 +0100
Revision:
168:9672193075cf
Parent:
167:e84263d55307
Child:
174:b96e65c34a4d
This updates the lib to the mbed lib v 146

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 149:156823d33999 1 /* mbed Microcontroller Library
<> 149:156823d33999 2 * Copyright (c) 2006-2013 ARM Limited
<> 149:156823d33999 3 *
<> 149:156823d33999 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 149:156823d33999 5 * you may not use this file except in compliance with the License.
<> 149:156823d33999 6 * You may obtain a copy of the License at
<> 149:156823d33999 7 *
<> 149:156823d33999 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 149:156823d33999 9 *
<> 149:156823d33999 10 * Unless required by applicable law or agreed to in writing, software
<> 149:156823d33999 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 149:156823d33999 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 149:156823d33999 13 * See the License for the specific language governing permissions and
<> 149:156823d33999 14 * limitations under the License.
<> 149:156823d33999 15 */
<> 149:156823d33999 16 #ifndef MBED_TICKER_H
<> 149:156823d33999 17 #define MBED_TICKER_H
<> 149:156823d33999 18
<> 149:156823d33999 19 #include "drivers/TimerEvent.h"
<> 149:156823d33999 20 #include "platform/Callback.h"
<> 160:d5399cc887bb 21 #include "platform/mbed_toolchain.h"
AnnaBridge 168:9672193075cf 22 #include "platform/NonCopyable.h"
<> 149:156823d33999 23
<> 149:156823d33999 24 namespace mbed {
<> 149:156823d33999 25 /** \addtogroup drivers */
<> 149:156823d33999 26
<> 149:156823d33999 27 /** A Ticker is used to call a function at a recurring interval
<> 149:156823d33999 28 *
<> 149:156823d33999 29 * You can use as many seperate Ticker objects as you require.
<> 149:156823d33999 30 *
AnnaBridge 167:e84263d55307 31 * @note Synchronization level: Interrupt safe
<> 149:156823d33999 32 *
<> 149:156823d33999 33 * Example:
<> 149:156823d33999 34 * @code
<> 149:156823d33999 35 * // Toggle the blinking led after 5 seconds
<> 149:156823d33999 36 *
<> 149:156823d33999 37 * #include "mbed.h"
<> 149:156823d33999 38 *
<> 149:156823d33999 39 * Ticker timer;
<> 149:156823d33999 40 * DigitalOut led1(LED1);
<> 149:156823d33999 41 * DigitalOut led2(LED2);
<> 149:156823d33999 42 *
<> 149:156823d33999 43 * int flip = 0;
<> 149:156823d33999 44 *
<> 149:156823d33999 45 * void attime() {
<> 149:156823d33999 46 * flip = !flip;
<> 149:156823d33999 47 * }
<> 149:156823d33999 48 *
<> 149:156823d33999 49 * int main() {
<> 149:156823d33999 50 * timer.attach(&attime, 5);
<> 149:156823d33999 51 * while(1) {
<> 149:156823d33999 52 * if(flip == 0) {
<> 149:156823d33999 53 * led1 = !led1;
<> 149:156823d33999 54 * } else {
<> 149:156823d33999 55 * led2 = !led2;
<> 149:156823d33999 56 * }
<> 149:156823d33999 57 * wait(0.2);
<> 149:156823d33999 58 * }
<> 149:156823d33999 59 * }
<> 149:156823d33999 60 * @endcode
AnnaBridge 167:e84263d55307 61 * @ingroup drivers
<> 149:156823d33999 62 */
AnnaBridge 168:9672193075cf 63 class Ticker : public TimerEvent, private NonCopyable<Ticker> {
<> 149:156823d33999 64
<> 149:156823d33999 65 public:
<> 149:156823d33999 66 Ticker() : TimerEvent() {
<> 149:156823d33999 67 }
<> 149:156823d33999 68
<> 149:156823d33999 69 Ticker(const ticker_data_t *data) : TimerEvent(data) {
<> 149:156823d33999 70 data->interface->init();
<> 149:156823d33999 71 }
<> 149:156823d33999 72
<> 149:156823d33999 73 /** Attach a function to be called by the Ticker, specifiying the interval in seconds
<> 149:156823d33999 74 *
<> 149:156823d33999 75 * @param func pointer to the function to be called
<> 149:156823d33999 76 * @param t the time between calls in seconds
<> 149:156823d33999 77 */
<> 149:156823d33999 78 void attach(Callback<void()> func, float t) {
<> 149:156823d33999 79 attach_us(func, t * 1000000.0f);
<> 149:156823d33999 80 }
<> 149:156823d33999 81
<> 149:156823d33999 82 /** Attach a member function to be called by the Ticker, specifiying the interval in seconds
<> 149:156823d33999 83 *
<> 149:156823d33999 84 * @param obj pointer to the object to call the member function on
<> 149:156823d33999 85 * @param method pointer to the member function to be called
<> 149:156823d33999 86 * @param t the time between calls in seconds
<> 149:156823d33999 87 * @deprecated
<> 149:156823d33999 88 * The attach function does not support cv-qualifiers. Replaced by
<> 149:156823d33999 89 * attach(callback(obj, method), t).
<> 149:156823d33999 90 */
<> 149:156823d33999 91 template<typename T, typename M>
<> 149:156823d33999 92 MBED_DEPRECATED_SINCE("mbed-os-5.1",
<> 149:156823d33999 93 "The attach function does not support cv-qualifiers. Replaced by "
<> 149:156823d33999 94 "attach(callback(obj, method), t).")
<> 149:156823d33999 95 void attach(T *obj, M method, float t) {
<> 149:156823d33999 96 attach(callback(obj, method), t);
<> 149:156823d33999 97 }
<> 149:156823d33999 98
<> 149:156823d33999 99 /** Attach a function to be called by the Ticker, specifiying the interval in micro-seconds
<> 149:156823d33999 100 *
AnnaBridge 167:e84263d55307 101 * @param func pointer to the function to be called
<> 149:156823d33999 102 * @param t the time between calls in micro-seconds
<> 149:156823d33999 103 */
AnnaBridge 167:e84263d55307 104 void attach_us(Callback<void()> func, us_timestamp_t t) {
<> 160:d5399cc887bb 105 _function = func;
<> 149:156823d33999 106 setup(t);
<> 149:156823d33999 107 }
<> 149:156823d33999 108
<> 149:156823d33999 109 /** Attach a member function to be called by the Ticker, specifiying the interval in micro-seconds
<> 149:156823d33999 110 *
AnnaBridge 167:e84263d55307 111 * @param obj pointer to the object to call the member function on
AnnaBridge 167:e84263d55307 112 * @param method pointer to the member function to be called
<> 149:156823d33999 113 * @param t the time between calls in micro-seconds
<> 149:156823d33999 114 * @deprecated
<> 149:156823d33999 115 * The attach_us function does not support cv-qualifiers. Replaced by
<> 149:156823d33999 116 * attach_us(callback(obj, method), t).
<> 149:156823d33999 117 */
<> 149:156823d33999 118 template<typename T, typename M>
<> 149:156823d33999 119 MBED_DEPRECATED_SINCE("mbed-os-5.1",
<> 149:156823d33999 120 "The attach_us function does not support cv-qualifiers. Replaced by "
<> 149:156823d33999 121 "attach_us(callback(obj, method), t).")
AnnaBridge 167:e84263d55307 122 void attach_us(T *obj, M method, us_timestamp_t t) {
<> 149:156823d33999 123 attach_us(Callback<void()>(obj, method), t);
<> 149:156823d33999 124 }
<> 149:156823d33999 125
<> 149:156823d33999 126 virtual ~Ticker() {
<> 149:156823d33999 127 detach();
<> 149:156823d33999 128 }
<> 149:156823d33999 129
<> 149:156823d33999 130 /** Detach the function
<> 149:156823d33999 131 */
<> 149:156823d33999 132 void detach();
<> 149:156823d33999 133
<> 149:156823d33999 134 protected:
AnnaBridge 167:e84263d55307 135 void setup(us_timestamp_t t);
<> 149:156823d33999 136 virtual void handler();
<> 149:156823d33999 137
<> 149:156823d33999 138 protected:
AnnaBridge 167:e84263d55307 139 us_timestamp_t _delay; /**< Time delay (in microseconds) for re-setting the multi-shot callback. */
<> 149:156823d33999 140 Callback<void()> _function; /**< Callback. */
<> 149:156823d33999 141 };
<> 149:156823d33999 142
<> 149:156823d33999 143 } // namespace mbed
<> 149:156823d33999 144
<> 149:156823d33999 145 #endif