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/Timer.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_TIMER_H
tushki7 0:60d829a0353a 17 #define MBED_TIMER_H
tushki7 0:60d829a0353a 18
tushki7 0:60d829a0353a 19 #include "platform.h"
tushki7 0:60d829a0353a 20
tushki7 0:60d829a0353a 21 namespace mbed {
tushki7 0:60d829a0353a 22
tushki7 0:60d829a0353a 23 /** A general purpose timer
tushki7 0:60d829a0353a 24 *
tushki7 0:60d829a0353a 25 * Example:
tushki7 0:60d829a0353a 26 * @code
tushki7 0:60d829a0353a 27 * // Count the time to toggle a LED
tushki7 0:60d829a0353a 28 *
tushki7 0:60d829a0353a 29 * #include "mbed.h"
tushki7 0:60d829a0353a 30 *
tushki7 0:60d829a0353a 31 * Timer timer;
tushki7 0:60d829a0353a 32 * DigitalOut led(LED1);
tushki7 0:60d829a0353a 33 * int begin, end;
tushki7 0:60d829a0353a 34 *
tushki7 0:60d829a0353a 35 * int main() {
tushki7 0:60d829a0353a 36 * timer.start();
tushki7 0:60d829a0353a 37 * begin = timer.read_us();
tushki7 0:60d829a0353a 38 * led = !led;
tushki7 0:60d829a0353a 39 * end = timer.read_us();
tushki7 0:60d829a0353a 40 * printf("Toggle the led takes %d us", end - begin);
tushki7 0:60d829a0353a 41 * }
tushki7 0:60d829a0353a 42 * @endcode
tushki7 0:60d829a0353a 43 */
tushki7 0:60d829a0353a 44 class Timer {
tushki7 0:60d829a0353a 45
tushki7 0:60d829a0353a 46 public:
tushki7 0:60d829a0353a 47 Timer();
tushki7 0:60d829a0353a 48
tushki7 0:60d829a0353a 49 /** Start the timer
tushki7 0:60d829a0353a 50 */
tushki7 0:60d829a0353a 51 void start();
tushki7 0:60d829a0353a 52
tushki7 0:60d829a0353a 53 /** Stop the timer
tushki7 0:60d829a0353a 54 */
tushki7 0:60d829a0353a 55 void stop();
tushki7 0:60d829a0353a 56
tushki7 0:60d829a0353a 57 /** Reset the timer to 0.
tushki7 0:60d829a0353a 58 *
tushki7 0:60d829a0353a 59 * If it was already counting, it will continue
tushki7 0:60d829a0353a 60 */
tushki7 0:60d829a0353a 61 void reset();
tushki7 0:60d829a0353a 62
tushki7 0:60d829a0353a 63 /** Get the time passed in seconds
tushki7 0:60d829a0353a 64 */
tushki7 0:60d829a0353a 65 float read();
tushki7 0:60d829a0353a 66
tushki7 0:60d829a0353a 67 /** Get the time passed in mili-seconds
tushki7 0:60d829a0353a 68 */
tushki7 0:60d829a0353a 69 int read_ms();
tushki7 0:60d829a0353a 70
tushki7 0:60d829a0353a 71 /** Get the time passed in micro-seconds
tushki7 0:60d829a0353a 72 */
tushki7 0:60d829a0353a 73 int read_us();
tushki7 0:60d829a0353a 74
tushki7 0:60d829a0353a 75 #ifdef MBED_OPERATORS
tushki7 0:60d829a0353a 76 operator float();
tushki7 0:60d829a0353a 77 #endif
tushki7 0:60d829a0353a 78
tushki7 0:60d829a0353a 79 protected:
tushki7 0:60d829a0353a 80 int slicetime();
tushki7 0:60d829a0353a 81 int _running; // whether the timer is running
tushki7 0:60d829a0353a 82 unsigned int _start; // the start time of the latest slice
tushki7 0:60d829a0353a 83 int _time; // any accumulated time from previous slices
tushki7 0:60d829a0353a 84 };
tushki7 0:60d829a0353a 85
tushki7 0:60d829a0353a 86 } // namespace mbed
tushki7 0:60d829a0353a 87
tushki7 0:60d829a0353a 88 #endif