Mark Turner / Mbed 2 deprecated lightsense_kl46z_basic_v1

Basic fading in and out of leds with light sensor.

Dependencies:   mbed

mbed/Timer.h@0:cf7af2656659, 2016-09-19 (annotated)

Committer:
mturner5
Date:
Mon Sep 19 03:24:58 2016 +0000
Revision:
0:cf7af2656659
Basic v1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mturner5 0:cf7af2656659 1 /* mbed Microcontroller Library
mturner5 0:cf7af2656659 2 * Copyright (c) 2006-2013 ARM Limited
mturner5 0:cf7af2656659 3 *
mturner5 0:cf7af2656659 4 * Licensed under the Apache License, Version 2.0 (the "License");
mturner5 0:cf7af2656659 5 * you may not use this file except in compliance with the License.
mturner5 0:cf7af2656659 6 * You may obtain a copy of the License at
mturner5 0:cf7af2656659 7 *
mturner5 0:cf7af2656659 8 * http://www.apache.org/licenses/LICENSE-2.0
mturner5 0:cf7af2656659 9 *
mturner5 0:cf7af2656659 10 * Unless required by applicable law or agreed to in writing, software
mturner5 0:cf7af2656659 11 * distributed under the License is distributed on an "AS IS" BASIS,
mturner5 0:cf7af2656659 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mturner5 0:cf7af2656659 13 * See the License for the specific language governing permissions and
mturner5 0:cf7af2656659 14 * limitations under the License.
mturner5 0:cf7af2656659 15 */
mturner5 0:cf7af2656659 16 #ifndef MBED_TIMER_H
mturner5 0:cf7af2656659 17 #define MBED_TIMER_H
mturner5 0:cf7af2656659 18
mturner5 0:cf7af2656659 19 #include "platform.h"
mturner5 0:cf7af2656659 20
mturner5 0:cf7af2656659 21 namespace mbed {
mturner5 0:cf7af2656659 22
mturner5 0:cf7af2656659 23 /** A general purpose timer
mturner5 0:cf7af2656659 24 *
mturner5 0:cf7af2656659 25 * Example:
mturner5 0:cf7af2656659 26 * @code
mturner5 0:cf7af2656659 27 * // Count the time to toggle a LED
mturner5 0:cf7af2656659 28 *
mturner5 0:cf7af2656659 29 * #include "mbed.h"
mturner5 0:cf7af2656659 30 *
mturner5 0:cf7af2656659 31 * Timer timer;
mturner5 0:cf7af2656659 32 * DigitalOut led(LED1);
mturner5 0:cf7af2656659 33 * int begin, end;
mturner5 0:cf7af2656659 34 *
mturner5 0:cf7af2656659 35 * int main() {
mturner5 0:cf7af2656659 36 * timer.start();
mturner5 0:cf7af2656659 37 * begin = timer.read_us();
mturner5 0:cf7af2656659 38 * led = !led;
mturner5 0:cf7af2656659 39 * end = timer.read_us();
mturner5 0:cf7af2656659 40 * printf("Toggle the led takes %d us", end - begin);
mturner5 0:cf7af2656659 41 * }
mturner5 0:cf7af2656659 42 * @endcode
mturner5 0:cf7af2656659 43 */
mturner5 0:cf7af2656659 44 class Timer {
mturner5 0:cf7af2656659 45
mturner5 0:cf7af2656659 46 public:
mturner5 0:cf7af2656659 47 Timer();
mturner5 0:cf7af2656659 48
mturner5 0:cf7af2656659 49 /** Start the timer
mturner5 0:cf7af2656659 50 */
mturner5 0:cf7af2656659 51 void start();
mturner5 0:cf7af2656659 52
mturner5 0:cf7af2656659 53 /** Stop the timer
mturner5 0:cf7af2656659 54 */
mturner5 0:cf7af2656659 55 void stop();
mturner5 0:cf7af2656659 56
mturner5 0:cf7af2656659 57 /** Reset the timer to 0.
mturner5 0:cf7af2656659 58 *
mturner5 0:cf7af2656659 59 * If it was already counting, it will continue
mturner5 0:cf7af2656659 60 */
mturner5 0:cf7af2656659 61 void reset();
mturner5 0:cf7af2656659 62
mturner5 0:cf7af2656659 63 /** Get the time passed in seconds
mturner5 0:cf7af2656659 64 */
mturner5 0:cf7af2656659 65 float read();
mturner5 0:cf7af2656659 66
mturner5 0:cf7af2656659 67 /** Get the time passed in mili-seconds
mturner5 0:cf7af2656659 68 */
mturner5 0:cf7af2656659 69 int read_ms();
mturner5 0:cf7af2656659 70
mturner5 0:cf7af2656659 71 /** Get the time passed in micro-seconds
mturner5 0:cf7af2656659 72 */
mturner5 0:cf7af2656659 73 int read_us();
mturner5 0:cf7af2656659 74
mturner5 0:cf7af2656659 75 #ifdef MBED_OPERATORS
mturner5 0:cf7af2656659 76 operator float();
mturner5 0:cf7af2656659 77 #endif
mturner5 0:cf7af2656659 78
mturner5 0:cf7af2656659 79 protected:
mturner5 0:cf7af2656659 80 int slicetime();
mturner5 0:cf7af2656659 81 int _running; // whether the timer is running
mturner5 0:cf7af2656659 82 unsigned int _start; // the start time of the latest slice
mturner5 0:cf7af2656659 83 int _time; // any accumulated time from previous slices
mturner5 0:cf7af2656659 84 };
mturner5 0:cf7af2656659 85
mturner5 0:cf7af2656659 86 } // namespace mbed
mturner5 0:cf7af2656659 87
mturner5 0:cf7af2656659 88 #endif