CDY version that shares functionality with Counter

Dependencies:   SDFileSystem_HelloWorld mbed FATFileSystem

Committer:
Charles David Young
Date:
Mon Nov 05 09:52:17 2018 -0700
Revision:
3:c547dba5d39b
Parent:
0:aa13e1c335cd
debug

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Charles David Young 0:aa13e1c335cd 1 /* mbed Microcontroller Library
Charles David Young 0:aa13e1c335cd 2 * Copyright (c) 2006-2013 ARM Limited
Charles David Young 0:aa13e1c335cd 3 *
Charles David Young 0:aa13e1c335cd 4 * Licensed under the Apache License, Version 2.0 (the "License");
Charles David Young 0:aa13e1c335cd 5 * you may not use this file except in compliance with the License.
Charles David Young 0:aa13e1c335cd 6 * You may obtain a copy of the License at
Charles David Young 0:aa13e1c335cd 7 *
Charles David Young 0:aa13e1c335cd 8 * http://www.apache.org/licenses/LICENSE-2.0
Charles David Young 0:aa13e1c335cd 9 *
Charles David Young 0:aa13e1c335cd 10 * Unless required by applicable law or agreed to in writing, software
Charles David Young 0:aa13e1c335cd 11 * distributed under the License is distributed on an "AS IS" BASIS,
Charles David Young 0:aa13e1c335cd 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Charles David Young 0:aa13e1c335cd 13 * See the License for the specific language governing permissions and
Charles David Young 0:aa13e1c335cd 14 * limitations under the License.
Charles David Young 0:aa13e1c335cd 15 */
Charles David Young 0:aa13e1c335cd 16 #ifndef MBED_TICKER_H
Charles David Young 0:aa13e1c335cd 17 #define MBED_TICKER_H
Charles David Young 0:aa13e1c335cd 18
Charles David Young 0:aa13e1c335cd 19 #include "drivers/TimerEvent.h"
Charles David Young 0:aa13e1c335cd 20 #include "platform/Callback.h"
Charles David Young 0:aa13e1c335cd 21 #include "platform/toolchain.h"
Charles David Young 0:aa13e1c335cd 22
Charles David Young 0:aa13e1c335cd 23 namespace mbed {
Charles David Young 0:aa13e1c335cd 24 /** \addtogroup drivers */
Charles David Young 0:aa13e1c335cd 25 /** @{*/
Charles David Young 0:aa13e1c335cd 26
Charles David Young 0:aa13e1c335cd 27 /** A Ticker is used to call a function at a recurring interval
Charles David Young 0:aa13e1c335cd 28 *
Charles David Young 0:aa13e1c335cd 29 * You can use as many seperate Ticker objects as you require.
Charles David Young 0:aa13e1c335cd 30 *
Charles David Young 0:aa13e1c335cd 31 * @Note Synchronization level: Interrupt safe
Charles David Young 0:aa13e1c335cd 32 *
Charles David Young 0:aa13e1c335cd 33 * Example:
Charles David Young 0:aa13e1c335cd 34 * @code
Charles David Young 0:aa13e1c335cd 35 * // Toggle the blinking led after 5 seconds
Charles David Young 0:aa13e1c335cd 36 *
Charles David Young 0:aa13e1c335cd 37 * #include "mbed.h"
Charles David Young 0:aa13e1c335cd 38 *
Charles David Young 0:aa13e1c335cd 39 * Ticker timer;
Charles David Young 0:aa13e1c335cd 40 * DigitalOut led1(LED1);
Charles David Young 0:aa13e1c335cd 41 * DigitalOut led2(LED2);
Charles David Young 0:aa13e1c335cd 42 *
Charles David Young 0:aa13e1c335cd 43 * int flip = 0;
Charles David Young 0:aa13e1c335cd 44 *
Charles David Young 0:aa13e1c335cd 45 * void attime() {
Charles David Young 0:aa13e1c335cd 46 * flip = !flip;
Charles David Young 0:aa13e1c335cd 47 * }
Charles David Young 0:aa13e1c335cd 48 *
Charles David Young 0:aa13e1c335cd 49 * int main() {
Charles David Young 0:aa13e1c335cd 50 * timer.attach(&attime, 5);
Charles David Young 0:aa13e1c335cd 51 * while(1) {
Charles David Young 0:aa13e1c335cd 52 * if(flip == 0) {
Charles David Young 0:aa13e1c335cd 53 * led1 = !led1;
Charles David Young 0:aa13e1c335cd 54 * } else {
Charles David Young 0:aa13e1c335cd 55 * led2 = !led2;
Charles David Young 0:aa13e1c335cd 56 * }
Charles David Young 0:aa13e1c335cd 57 * wait(0.2);
Charles David Young 0:aa13e1c335cd 58 * }
Charles David Young 0:aa13e1c335cd 59 * }
Charles David Young 0:aa13e1c335cd 60 * @endcode
Charles David Young 0:aa13e1c335cd 61 */
Charles David Young 0:aa13e1c335cd 62 class Ticker : public TimerEvent {
Charles David Young 0:aa13e1c335cd 63
Charles David Young 0:aa13e1c335cd 64 public:
Charles David Young 0:aa13e1c335cd 65 Ticker() : TimerEvent() {
Charles David Young 0:aa13e1c335cd 66 }
Charles David Young 0:aa13e1c335cd 67
Charles David Young 0:aa13e1c335cd 68 Ticker(const ticker_data_t *data) : TimerEvent(data) {
Charles David Young 0:aa13e1c335cd 69 data->interface->init();
Charles David Young 0:aa13e1c335cd 70 }
Charles David Young 0:aa13e1c335cd 71
Charles David Young 0:aa13e1c335cd 72 /** Attach a function to be called by the Ticker, specifiying the interval in seconds
Charles David Young 0:aa13e1c335cd 73 *
Charles David Young 0:aa13e1c335cd 74 * @param func pointer to the function to be called
Charles David Young 0:aa13e1c335cd 75 * @param t the time between calls in seconds
Charles David Young 0:aa13e1c335cd 76 */
Charles David Young 0:aa13e1c335cd 77 void attach(Callback<void()> func, float t) {
Charles David Young 0:aa13e1c335cd 78 attach_us(func, t * 1000000.0f);
Charles David Young 0:aa13e1c335cd 79 }
Charles David Young 0:aa13e1c335cd 80
Charles David Young 0:aa13e1c335cd 81 /** Attach a member function to be called by the Ticker, specifiying the interval in seconds
Charles David Young 0:aa13e1c335cd 82 *
Charles David Young 0:aa13e1c335cd 83 * @param obj pointer to the object to call the member function on
Charles David Young 0:aa13e1c335cd 84 * @param method pointer to the member function to be called
Charles David Young 0:aa13e1c335cd 85 * @param t the time between calls in seconds
Charles David Young 0:aa13e1c335cd 86 * @deprecated
Charles David Young 0:aa13e1c335cd 87 * The attach function does not support cv-qualifiers. Replaced by
Charles David Young 0:aa13e1c335cd 88 * attach(callback(obj, method), t).
Charles David Young 0:aa13e1c335cd 89 */
Charles David Young 0:aa13e1c335cd 90 template<typename T, typename M>
Charles David Young 0:aa13e1c335cd 91 MBED_DEPRECATED_SINCE("mbed-os-5.1",
Charles David Young 0:aa13e1c335cd 92 "The attach function does not support cv-qualifiers. Replaced by "
Charles David Young 0:aa13e1c335cd 93 "attach(callback(obj, method), t).")
Charles David Young 0:aa13e1c335cd 94 void attach(T *obj, M method, float t) {
Charles David Young 0:aa13e1c335cd 95 attach(callback(obj, method), t);
Charles David Young 0:aa13e1c335cd 96 }
Charles David Young 0:aa13e1c335cd 97
Charles David Young 0:aa13e1c335cd 98 /** Attach a function to be called by the Ticker, specifiying the interval in micro-seconds
Charles David Young 0:aa13e1c335cd 99 *
Charles David Young 0:aa13e1c335cd 100 * @param fptr pointer to the function to be called
Charles David Young 0:aa13e1c335cd 101 * @param t the time between calls in micro-seconds
Charles David Young 0:aa13e1c335cd 102 */
Charles David Young 0:aa13e1c335cd 103 void attach_us(Callback<void()> func, timestamp_t t) {
Charles David Young 0:aa13e1c335cd 104 _function.attach(func);
Charles David Young 0:aa13e1c335cd 105 setup(t);
Charles David Young 0:aa13e1c335cd 106 }
Charles David Young 0:aa13e1c335cd 107
Charles David Young 0:aa13e1c335cd 108 /** Attach a member function to be called by the Ticker, specifiying the interval in micro-seconds
Charles David Young 0:aa13e1c335cd 109 *
Charles David Young 0:aa13e1c335cd 110 * @param tptr pointer to the object to call the member function on
Charles David Young 0:aa13e1c335cd 111 * @param mptr pointer to the member function to be called
Charles David Young 0:aa13e1c335cd 112 * @param t the time between calls in micro-seconds
Charles David Young 0:aa13e1c335cd 113 * @deprecated
Charles David Young 0:aa13e1c335cd 114 * The attach_us function does not support cv-qualifiers. Replaced by
Charles David Young 0:aa13e1c335cd 115 * attach_us(callback(obj, method), t).
Charles David Young 0:aa13e1c335cd 116 */
Charles David Young 0:aa13e1c335cd 117 template<typename T, typename M>
Charles David Young 0:aa13e1c335cd 118 MBED_DEPRECATED_SINCE("mbed-os-5.1",
Charles David Young 0:aa13e1c335cd 119 "The attach_us function does not support cv-qualifiers. Replaced by "
Charles David Young 0:aa13e1c335cd 120 "attach_us(callback(obj, method), t).")
Charles David Young 0:aa13e1c335cd 121 void attach_us(T *obj, M method, timestamp_t t) {
Charles David Young 0:aa13e1c335cd 122 attach_us(Callback<void()>(obj, method), t);
Charles David Young 0:aa13e1c335cd 123 }
Charles David Young 0:aa13e1c335cd 124
Charles David Young 0:aa13e1c335cd 125 virtual ~Ticker() {
Charles David Young 0:aa13e1c335cd 126 detach();
Charles David Young 0:aa13e1c335cd 127 }
Charles David Young 0:aa13e1c335cd 128
Charles David Young 0:aa13e1c335cd 129 /** Detach the function
Charles David Young 0:aa13e1c335cd 130 */
Charles David Young 0:aa13e1c335cd 131 void detach();
Charles David Young 0:aa13e1c335cd 132
Charles David Young 0:aa13e1c335cd 133 protected:
Charles David Young 0:aa13e1c335cd 134 void setup(timestamp_t t);
Charles David Young 0:aa13e1c335cd 135 virtual void handler();
Charles David Young 0:aa13e1c335cd 136
Charles David Young 0:aa13e1c335cd 137 protected:
Charles David Young 0:aa13e1c335cd 138 timestamp_t _delay; /**< Time delay (in microseconds) for re-setting the multi-shot callback. */
Charles David Young 0:aa13e1c335cd 139 Callback<void()> _function; /**< Callback. */
Charles David Young 0:aa13e1c335cd 140 };
Charles David Young 0:aa13e1c335cd 141
Charles David Young 0:aa13e1c335cd 142 } // namespace mbed
Charles David Young 0:aa13e1c335cd 143
Charles David Young 0:aa13e1c335cd 144 #endif
Charles David Young 0:aa13e1c335cd 145
Charles David Young 0:aa13e1c335cd 146 /** @}*/