Yihui Xiong / BLE_NODE_TEST

Test code for Grove Node BLE

Dependencies:   BLE_API nRF51822

Fork of BLE_LoopbackUART by Bluetooth Low Energy

mbed-src/api/Timer.h@10:22480ac31879, 2014-11-27 (annotated)

Committer:
yihui
Date:
Thu Nov 27 09:30:36 2014 +0000
Revision:
10:22480ac31879
Parent:
9:05f0b5a3a70a 
change to new revision hardware

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 9:05f0b5a3a70a 1 /* mbed Microcontroller Library
yihui 9:05f0b5a3a70a 2 * Copyright (c) 2006-2013 ARM Limited
yihui 9:05f0b5a3a70a 3 *
yihui 9:05f0b5a3a70a 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 9:05f0b5a3a70a 5 * you may not use this file except in compliance with the License.
yihui 9:05f0b5a3a70a 6 * You may obtain a copy of the License at
yihui 9:05f0b5a3a70a 7 *
yihui 9:05f0b5a3a70a 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 9:05f0b5a3a70a 9 *
yihui 9:05f0b5a3a70a 10 * Unless required by applicable law or agreed to in writing, software
yihui 9:05f0b5a3a70a 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 9:05f0b5a3a70a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 9:05f0b5a3a70a 13 * See the License for the specific language governing permissions and
yihui 9:05f0b5a3a70a 14 * limitations under the License.
yihui 9:05f0b5a3a70a 15 */
yihui 9:05f0b5a3a70a 16 #ifndef MBED_TIMER_H
yihui 9:05f0b5a3a70a 17 #define MBED_TIMER_H
yihui 9:05f0b5a3a70a 18
yihui 9:05f0b5a3a70a 19 #include "platform.h"
yihui 9:05f0b5a3a70a 20
yihui 9:05f0b5a3a70a 21 namespace mbed {
yihui 9:05f0b5a3a70a 22
yihui 9:05f0b5a3a70a 23 /** A general purpose timer
yihui 9:05f0b5a3a70a 24 *
yihui 9:05f0b5a3a70a 25 * Example:
yihui 9:05f0b5a3a70a 26 * @code
yihui 9:05f0b5a3a70a 27 * // Count the time to toggle a LED
yihui 9:05f0b5a3a70a 28 *
yihui 9:05f0b5a3a70a 29 * #include "mbed.h"
yihui 9:05f0b5a3a70a 30 *
yihui 9:05f0b5a3a70a 31 * Timer timer;
yihui 9:05f0b5a3a70a 32 * DigitalOut led(LED1);
yihui 9:05f0b5a3a70a 33 * int begin, end;
yihui 9:05f0b5a3a70a 34 *
yihui 9:05f0b5a3a70a 35 * int main() {
yihui 9:05f0b5a3a70a 36 * timer.start();
yihui 9:05f0b5a3a70a 37 * begin = timer.read_us();
yihui 9:05f0b5a3a70a 38 * led = !led;
yihui 9:05f0b5a3a70a 39 * end = timer.read_us();
yihui 9:05f0b5a3a70a 40 * printf("Toggle the led takes %d us", end - begin);
yihui 9:05f0b5a3a70a 41 * }
yihui 9:05f0b5a3a70a 42 * @endcode
yihui 9:05f0b5a3a70a 43 */
yihui 9:05f0b5a3a70a 44 class Timer {
yihui 9:05f0b5a3a70a 45
yihui 9:05f0b5a3a70a 46 public:
yihui 9:05f0b5a3a70a 47 Timer();
yihui 9:05f0b5a3a70a 48
yihui 9:05f0b5a3a70a 49 /** Start the timer
yihui 9:05f0b5a3a70a 50 */
yihui 9:05f0b5a3a70a 51 void start();
yihui 9:05f0b5a3a70a 52
yihui 9:05f0b5a3a70a 53 /** Stop the timer
yihui 9:05f0b5a3a70a 54 */
yihui 9:05f0b5a3a70a 55 void stop();
yihui 9:05f0b5a3a70a 56
yihui 9:05f0b5a3a70a 57 /** Reset the timer to 0.
yihui 9:05f0b5a3a70a 58 *
yihui 9:05f0b5a3a70a 59 * If it was already counting, it will continue
yihui 9:05f0b5a3a70a 60 */
yihui 9:05f0b5a3a70a 61 void reset();
yihui 9:05f0b5a3a70a 62
yihui 9:05f0b5a3a70a 63 /** Get the time passed in seconds
yihui 9:05f0b5a3a70a 64 */
yihui 9:05f0b5a3a70a 65 float read();
yihui 9:05f0b5a3a70a 66
yihui 9:05f0b5a3a70a 67 /** Get the time passed in mili-seconds
yihui 9:05f0b5a3a70a 68 */
yihui 9:05f0b5a3a70a 69 int read_ms();
yihui 9:05f0b5a3a70a 70
yihui 9:05f0b5a3a70a 71 /** Get the time passed in micro-seconds
yihui 9:05f0b5a3a70a 72 */
yihui 9:05f0b5a3a70a 73 int read_us();
yihui 9:05f0b5a3a70a 74
yihui 9:05f0b5a3a70a 75 #ifdef MBED_OPERATORS
yihui 9:05f0b5a3a70a 76 operator float();
yihui 9:05f0b5a3a70a 77 #endif
yihui 9:05f0b5a3a70a 78
yihui 9:05f0b5a3a70a 79 protected:
yihui 9:05f0b5a3a70a 80 int slicetime();
yihui 9:05f0b5a3a70a 81 int _running; // whether the timer is running
yihui 9:05f0b5a3a70a 82 unsigned int _start; // the start time of the latest slice
yihui 9:05f0b5a3a70a 83 int _time; // any accumulated time from previous slices
yihui 9:05f0b5a3a70a 84 };
yihui 9:05f0b5a3a70a 85
yihui 9:05f0b5a3a70a 86 } // namespace mbed
yihui 9:05f0b5a3a70a 87
yihui 9:05f0b5a3a70a 88 #endif