Ricardo Benitez / mbed

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Timer.h@59:0883845fe643, 2013-02-18 (annotated)

Committer:
emilmont
Date:
Mon Feb 18 11:12:58 2013 +0000
Revision:
59:0883845fe643
Parent:
55:d722ed6a4237
Child:
65:5798e58a58b1
Add pinmap NC terminators for LPC1768 CAN.

Update the license from MIT to Apache v2.

Make the semihost code target independent using opportune defines for the UID and MAC.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 44:24d45a770a51 1 /* mbed Microcontroller Library
emilmont 54:71b101360fb9 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 44:24d45a770a51 3 *
emilmont 59:0883845fe643 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 59:0883845fe643 5 * you may not use this file except in compliance with the License.
emilmont 59:0883845fe643 6 * You may obtain a copy of the License at
emilmont 59:0883845fe643 7 *
emilmont 59:0883845fe643 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 44:24d45a770a51 9 *
emilmont 59:0883845fe643 10 * Unless required by applicable law or agreed to in writing, software
emilmont 59:0883845fe643 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 59:0883845fe643 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 59:0883845fe643 13 * See the License for the specific language governing permissions and
emilmont 59:0883845fe643 14 * limitations under the License.
emilmont 44:24d45a770a51 15 */
emilmont 44:24d45a770a51 16 #ifndef MBED_TIMER_H
emilmont 44:24d45a770a51 17 #define MBED_TIMER_H
emilmont 44:24d45a770a51 18
emilmont 44:24d45a770a51 19 #include "platform.h"
emilmont 44:24d45a770a51 20
emilmont 44:24d45a770a51 21 namespace mbed {
emilmont 44:24d45a770a51 22
emilmont 55:d722ed6a4237 23 /** A general purpose timer
emilmont 44:24d45a770a51 24 *
emilmont 44:24d45a770a51 25 * Example:
emilmont 44:24d45a770a51 26 * @code
emilmont 44:24d45a770a51 27 * // Count the time to toggle a LED
emilmont 44:24d45a770a51 28 *
emilmont 44:24d45a770a51 29 * #include "mbed.h"
emilmont 55:d722ed6a4237 30 *
emilmont 44:24d45a770a51 31 * Timer timer;
emilmont 44:24d45a770a51 32 * DigitalOut led(LED1);
emilmont 44:24d45a770a51 33 * int begin, end;
emilmont 55:d722ed6a4237 34 *
emilmont 44:24d45a770a51 35 * int main() {
emilmont 44:24d45a770a51 36 * timer.start();
emilmont 44:24d45a770a51 37 * begin = timer.read_us();
emilmont 44:24d45a770a51 38 * led = !led;
emilmont 44:24d45a770a51 39 * end = timer.read_us();
emilmont 44:24d45a770a51 40 * printf("Toggle the led takes %d us", end - begin);
emilmont 44:24d45a770a51 41 * }
emilmont 44:24d45a770a51 42 * @endcode
emilmont 44:24d45a770a51 43 */
emilmont 44:24d45a770a51 44 class Timer {
emilmont 44:24d45a770a51 45
emilmont 44:24d45a770a51 46 public:
emilmont 44:24d45a770a51 47 Timer();
emilmont 55:d722ed6a4237 48
emilmont 44:24d45a770a51 49 /** Start the timer
emilmont 44:24d45a770a51 50 */
emilmont 55:d722ed6a4237 51 void start();
emilmont 44:24d45a770a51 52
emilmont 44:24d45a770a51 53 /** Stop the timer
emilmont 44:24d45a770a51 54 */
emilmont 55:d722ed6a4237 55 void stop();
emilmont 44:24d45a770a51 56
emilmont 55:d722ed6a4237 57 /** Reset the timer to 0.
emilmont 44:24d45a770a51 58 *
emilmont 44:24d45a770a51 59 * If it was already counting, it will continue
emilmont 44:24d45a770a51 60 */
emilmont 44:24d45a770a51 61 void reset();
emilmont 44:24d45a770a51 62
emilmont 44:24d45a770a51 63 /** Get the time passed in seconds
emilmont 44:24d45a770a51 64 */
emilmont 44:24d45a770a51 65 float read();
emilmont 44:24d45a770a51 66
emilmont 44:24d45a770a51 67 /** Get the time passed in mili-seconds
emilmont 44:24d45a770a51 68 */
emilmont 44:24d45a770a51 69 int read_ms();
emilmont 44:24d45a770a51 70
emilmont 44:24d45a770a51 71 /** Get the time passed in micro-seconds
emilmont 44:24d45a770a51 72 */
emilmont 44:24d45a770a51 73 int read_us();
emilmont 44:24d45a770a51 74
emilmont 55:d722ed6a4237 75 #ifdef MBED_OPERATORS
emilmont 44:24d45a770a51 76 operator float();
emilmont 44:24d45a770a51 77 #endif
emilmont 44:24d45a770a51 78
emilmont 44:24d45a770a51 79 protected:
emilmont 44:24d45a770a51 80 int slicetime();
emilmont 44:24d45a770a51 81 int _running; // whether the timer is running
emilmont 44:24d45a770a51 82 unsigned int _start; // the start time of the latest slice
emilmont 44:24d45a770a51 83 int _time; // any accumulated time from previous slices
emilmont 44:24d45a770a51 84 };
emilmont 44:24d45a770a51 85
emilmont 44:24d45a770a51 86 } // namespace mbed
emilmont 44:24d45a770a51 87
emilmont 44:24d45a770a51 88 #endif