Tushar Sachdeva / FRDM_K64F_LCD

A simple 128x32 graphical LCD program to quickstart with LCD on ARM mbed IoT Starter Kit. This requires mbed Applciation Shield with FRDM-K64F platform.

Dependencies:   C12832

mbed/Ticker.h@1:eb68c94a8ee5, 2015-04-12 (annotated)

Committer:
tushki7
Date:
Sun Apr 12 15:45:52 2015 +0000
Revision:
1:eb68c94a8ee5
Parent:
0:60d829a0353a 
A simple 128x32 LCD program with ARM mbed IoT Starter Kit;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tushki7 0:60d829a0353a 1 /* mbed Microcontroller Library
tushki7 0:60d829a0353a 2 * Copyright (c) 2006-2013 ARM Limited
tushki7 0:60d829a0353a 3 *
tushki7 0:60d829a0353a 4 * Licensed under the Apache License, Version 2.0 (the "License");
tushki7 0:60d829a0353a 5 * you may not use this file except in compliance with the License.
tushki7 0:60d829a0353a 6 * You may obtain a copy of the License at
tushki7 0:60d829a0353a 7 *
tushki7 0:60d829a0353a 8 * http://www.apache.org/licenses/LICENSE-2.0
tushki7 0:60d829a0353a 9 *
tushki7 0:60d829a0353a 10 * Unless required by applicable law or agreed to in writing, software
tushki7 0:60d829a0353a 11 * distributed under the License is distributed on an "AS IS" BASIS,
tushki7 0:60d829a0353a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
tushki7 0:60d829a0353a 13 * See the License for the specific language governing permissions and
tushki7 0:60d829a0353a 14 * limitations under the License.
tushki7 0:60d829a0353a 15 */
tushki7 0:60d829a0353a 16 #ifndef MBED_TICKER_H
tushki7 0:60d829a0353a 17 #define MBED_TICKER_H
tushki7 0:60d829a0353a 18
tushki7 0:60d829a0353a 19 #include "TimerEvent.h"
tushki7 0:60d829a0353a 20 #include "FunctionPointer.h"
tushki7 0:60d829a0353a 21
tushki7 0:60d829a0353a 22 namespace mbed {
tushki7 0:60d829a0353a 23
tushki7 0:60d829a0353a 24 /** A Ticker is used to call a function at a recurring interval
tushki7 0:60d829a0353a 25 *
tushki7 0:60d829a0353a 26 * You can use as many seperate Ticker objects as you require.
tushki7 0:60d829a0353a 27 *
tushki7 0:60d829a0353a 28 * Example:
tushki7 0:60d829a0353a 29 * @code
tushki7 0:60d829a0353a 30 * // Toggle the blinking led after 5 seconds
tushki7 0:60d829a0353a 31 *
tushki7 0:60d829a0353a 32 * #include "mbed.h"
tushki7 0:60d829a0353a 33 *
tushki7 0:60d829a0353a 34 * Ticker timer;
tushki7 0:60d829a0353a 35 * DigitalOut led1(LED1);
tushki7 0:60d829a0353a 36 * DigitalOut led2(LED2);
tushki7 0:60d829a0353a 37 *
tushki7 0:60d829a0353a 38 * int flip = 0;
tushki7 0:60d829a0353a 39 *
tushki7 0:60d829a0353a 40 * void attime() {
tushki7 0:60d829a0353a 41 * flip = !flip;
tushki7 0:60d829a0353a 42 * }
tushki7 0:60d829a0353a 43 *
tushki7 0:60d829a0353a 44 * int main() {
tushki7 0:60d829a0353a 45 * timer.attach(&attime, 5);
tushki7 0:60d829a0353a 46 * while(1) {
tushki7 0:60d829a0353a 47 * if(flip == 0) {
tushki7 0:60d829a0353a 48 * led1 = !led1;
tushki7 0:60d829a0353a 49 * } else {
tushki7 0:60d829a0353a 50 * led2 = !led2;
tushki7 0:60d829a0353a 51 * }
tushki7 0:60d829a0353a 52 * wait(0.2);
tushki7 0:60d829a0353a 53 * }
tushki7 0:60d829a0353a 54 * }
tushki7 0:60d829a0353a 55 * @endcode
tushki7 0:60d829a0353a 56 */
tushki7 0:60d829a0353a 57 class Ticker : public TimerEvent {
tushki7 0:60d829a0353a 58
tushki7 0:60d829a0353a 59 public:
tushki7 0:60d829a0353a 60
tushki7 0:60d829a0353a 61 /** Attach a function to be called by the Ticker, specifiying the interval in seconds
tushki7 0:60d829a0353a 62 *
tushki7 0:60d829a0353a 63 * @param fptr pointer to the function to be called
tushki7 0:60d829a0353a 64 * @param t the time between calls in seconds
tushki7 0:60d829a0353a 65 */
tushki7 0:60d829a0353a 66 void attach(void (*fptr)(void), float t) {
tushki7 0:60d829a0353a 67 attach_us(fptr, t * 1000000.0f);
tushki7 0:60d829a0353a 68 }
tushki7 0:60d829a0353a 69
tushki7 0:60d829a0353a 70 /** Attach a member function to be called by the Ticker, specifiying the interval in seconds
tushki7 0:60d829a0353a 71 *
tushki7 0:60d829a0353a 72 * @param tptr pointer to the object to call the member function on
tushki7 0:60d829a0353a 73 * @param mptr pointer to the member function to be called
tushki7 0:60d829a0353a 74 * @param t the time between calls in seconds
tushki7 0:60d829a0353a 75 */
tushki7 0:60d829a0353a 76 template<typename T>
tushki7 0:60d829a0353a 77 void attach(T* tptr, void (T::*mptr)(void), float t) {
tushki7 0:60d829a0353a 78 attach_us(tptr, mptr, t * 1000000.0f);
tushki7 0:60d829a0353a 79 }
tushki7 0:60d829a0353a 80
tushki7 0:60d829a0353a 81 /** Attach a function to be called by the Ticker, specifiying the interval in micro-seconds
tushki7 0:60d829a0353a 82 *
tushki7 0:60d829a0353a 83 * @param fptr pointer to the function to be called
tushki7 0:60d829a0353a 84 * @param t the time between calls in micro-seconds
tushki7 0:60d829a0353a 85 */
tushki7 0:60d829a0353a 86 void attach_us(void (*fptr)(void), timestamp_t t) {
tushki7 0:60d829a0353a 87 _function.attach(fptr);
tushki7 0:60d829a0353a 88 setup(t);
tushki7 0:60d829a0353a 89 }
tushki7 0:60d829a0353a 90
tushki7 0:60d829a0353a 91 /** Attach a member function to be called by the Ticker, specifiying the interval in micro-seconds
tushki7 0:60d829a0353a 92 *
tushki7 0:60d829a0353a 93 * @param tptr pointer to the object to call the member function on
tushki7 0:60d829a0353a 94 * @param mptr pointer to the member function to be called
tushki7 0:60d829a0353a 95 * @param t the time between calls in micro-seconds
tushki7 0:60d829a0353a 96 */
tushki7 0:60d829a0353a 97 template<typename T>
tushki7 0:60d829a0353a 98 void attach_us(T* tptr, void (T::*mptr)(void), timestamp_t t) {
tushki7 0:60d829a0353a 99 _function.attach(tptr, mptr);
tushki7 0:60d829a0353a 100 setup(t);
tushki7 0:60d829a0353a 101 }
tushki7 0:60d829a0353a 102
tushki7 0:60d829a0353a 103 virtual ~Ticker() {
tushki7 0:60d829a0353a 104 detach();
tushki7 0:60d829a0353a 105 }
tushki7 0:60d829a0353a 106
tushki7 0:60d829a0353a 107 /** Detach the function
tushki7 0:60d829a0353a 108 */
tushki7 0:60d829a0353a 109 void detach();
tushki7 0:60d829a0353a 110
tushki7 0:60d829a0353a 111 protected:
tushki7 0:60d829a0353a 112 void setup(timestamp_t t);
tushki7 0:60d829a0353a 113 virtual void handler();
tushki7 0:60d829a0353a 114
tushki7 0:60d829a0353a 115 protected:
tushki7 0:60d829a0353a 116 timestamp_t _delay; /**< Time delay (in microseconds) for re-setting the multi-shot callback. */
tushki7 0:60d829a0353a 117 FunctionPointer _function; /**< Callback. */
tushki7 0:60d829a0353a 118 };
tushki7 0:60d829a0353a 119
tushki7 0:60d829a0353a 120 } // namespace mbed
tushki7 0:60d829a0353a 121
tushki7 0:60d829a0353a 122 #endif