David DiCarlo / mbed-src-KL05Z-smart-sensor

Fork of mbed for KL05Z based smart sensor which has no crystal on the board, so MCG FEI mode is required.

Dependents:   smart-sensor-KL05Z-debug

Fork of mbed-src by Ermanno Brusadin

api/Timer.h@1:da408b460382, 2018-01-29 (annotated)

Committer:
r14793
Date:
Mon Jan 29 15:38:37 2018 +0000
Revision:
1:da408b460382
Parent:
0:0a673c671a56 
changed KL05 MCG mode to FEI for smart sensor boards (no crystal)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ebrus 0:0a673c671a56 1 /* mbed Microcontroller Library
ebrus 0:0a673c671a56 2 * Copyright (c) 2006-2013 ARM Limited
ebrus 0:0a673c671a56 3 *
ebrus 0:0a673c671a56 4 * Licensed under the Apache License, Version 2.0 (the "License");
ebrus 0:0a673c671a56 5 * you may not use this file except in compliance with the License.
ebrus 0:0a673c671a56 6 * You may obtain a copy of the License at
ebrus 0:0a673c671a56 7 *
ebrus 0:0a673c671a56 8 * http://www.apache.org/licenses/LICENSE-2.0
ebrus 0:0a673c671a56 9 *
ebrus 0:0a673c671a56 10 * Unless required by applicable law or agreed to in writing, software
ebrus 0:0a673c671a56 11 * distributed under the License is distributed on an "AS IS" BASIS,
ebrus 0:0a673c671a56 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ebrus 0:0a673c671a56 13 * See the License for the specific language governing permissions and
ebrus 0:0a673c671a56 14 * limitations under the License.
ebrus 0:0a673c671a56 15 */
ebrus 0:0a673c671a56 16 #ifndef MBED_TIMER_H
ebrus 0:0a673c671a56 17 #define MBED_TIMER_H
ebrus 0:0a673c671a56 18
ebrus 0:0a673c671a56 19 #include "platform.h"
ebrus 0:0a673c671a56 20
ebrus 0:0a673c671a56 21 namespace mbed {
ebrus 0:0a673c671a56 22
ebrus 0:0a673c671a56 23 /** A general purpose timer
ebrus 0:0a673c671a56 24 *
ebrus 0:0a673c671a56 25 * Example:
ebrus 0:0a673c671a56 26 * @code
ebrus 0:0a673c671a56 27 * // Count the time to toggle a LED
ebrus 0:0a673c671a56 28 *
ebrus 0:0a673c671a56 29 * #include "mbed.h"
ebrus 0:0a673c671a56 30 *
ebrus 0:0a673c671a56 31 * Timer timer;
ebrus 0:0a673c671a56 32 * DigitalOut led(LED1);
ebrus 0:0a673c671a56 33 * int begin, end;
ebrus 0:0a673c671a56 34 *
ebrus 0:0a673c671a56 35 * int main() {
ebrus 0:0a673c671a56 36 * timer.start();
ebrus 0:0a673c671a56 37 * begin = timer.read_us();
ebrus 0:0a673c671a56 38 * led = !led;
ebrus 0:0a673c671a56 39 * end = timer.read_us();
ebrus 0:0a673c671a56 40 * printf("Toggle the led takes %d us", end - begin);
ebrus 0:0a673c671a56 41 * }
ebrus 0:0a673c671a56 42 * @endcode
ebrus 0:0a673c671a56 43 */
ebrus 0:0a673c671a56 44 class Timer {
ebrus 0:0a673c671a56 45
ebrus 0:0a673c671a56 46 public:
ebrus 0:0a673c671a56 47 Timer();
ebrus 0:0a673c671a56 48
ebrus 0:0a673c671a56 49 /** Start the timer
ebrus 0:0a673c671a56 50 */
ebrus 0:0a673c671a56 51 void start();
ebrus 0:0a673c671a56 52
ebrus 0:0a673c671a56 53 /** Stop the timer
ebrus 0:0a673c671a56 54 */
ebrus 0:0a673c671a56 55 void stop();
ebrus 0:0a673c671a56 56
ebrus 0:0a673c671a56 57 /** Reset the timer to 0.
ebrus 0:0a673c671a56 58 *
ebrus 0:0a673c671a56 59 * If it was already counting, it will continue
ebrus 0:0a673c671a56 60 */
ebrus 0:0a673c671a56 61 void reset();
ebrus 0:0a673c671a56 62
ebrus 0:0a673c671a56 63 /** Get the time passed in seconds
ebrus 0:0a673c671a56 64 */
ebrus 0:0a673c671a56 65 float read();
ebrus 0:0a673c671a56 66
ebrus 0:0a673c671a56 67 /** Get the time passed in mili-seconds
ebrus 0:0a673c671a56 68 */
ebrus 0:0a673c671a56 69 int read_ms();
ebrus 0:0a673c671a56 70
ebrus 0:0a673c671a56 71 /** Get the time passed in micro-seconds
ebrus 0:0a673c671a56 72 */
ebrus 0:0a673c671a56 73 int read_us();
ebrus 0:0a673c671a56 74
ebrus 0:0a673c671a56 75 #ifdef MBED_OPERATORS
ebrus 0:0a673c671a56 76 operator float();
ebrus 0:0a673c671a56 77 #endif
ebrus 0:0a673c671a56 78
ebrus 0:0a673c671a56 79 protected:
ebrus 0:0a673c671a56 80 int slicetime();
ebrus 0:0a673c671a56 81 int _running; // whether the timer is running
ebrus 0:0a673c671a56 82 unsigned int _start; // the start time of the latest slice
ebrus 0:0a673c671a56 83 int _time; // any accumulated time from previous slices
ebrus 0:0a673c671a56 84 };
ebrus 0:0a673c671a56 85
ebrus 0:0a673c671a56 86 } // namespace mbed
ebrus 0:0a673c671a56 87
ebrus 0:0a673c671a56 88 #endif