Damian Gabino / picoGW_mcu

MCU driver/HAL for the Picocell Gateway concentrator board. The firmware implements either a USB CDC protocol or a UART protocol to bridge commands coming from host to the SX1308 SPI interface.

src/mbed-dev/api/Timer.h@0:c76361bd82e8, 2018-04-11 (annotated)

Committer:
dgabino
Date:
Wed Apr 11 14:42:47 2018 +0000
Revision:
0:c76361bd82e8
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dgabino 0:c76361bd82e8 1 /* mbed Microcontroller Library
dgabino 0:c76361bd82e8 2 * Copyright (c) 2006-2013 ARM Limited
dgabino 0:c76361bd82e8 3 *
dgabino 0:c76361bd82e8 4 * Licensed under the Apache License, Version 2.0 (the "License");
dgabino 0:c76361bd82e8 5 * you may not use this file except in compliance with the License.
dgabino 0:c76361bd82e8 6 * You may obtain a copy of the License at
dgabino 0:c76361bd82e8 7 *
dgabino 0:c76361bd82e8 8 * http://www.apache.org/licenses/LICENSE-2.0
dgabino 0:c76361bd82e8 9 *
dgabino 0:c76361bd82e8 10 * Unless required by applicable law or agreed to in writing, software
dgabino 0:c76361bd82e8 11 * distributed under the License is distributed on an "AS IS" BASIS,
dgabino 0:c76361bd82e8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dgabino 0:c76361bd82e8 13 * See the License for the specific language governing permissions and
dgabino 0:c76361bd82e8 14 * limitations under the License.
dgabino 0:c76361bd82e8 15 */
dgabino 0:c76361bd82e8 16 #ifndef MBED_TIMER_H
dgabino 0:c76361bd82e8 17 #define MBED_TIMER_H
dgabino 0:c76361bd82e8 18
dgabino 0:c76361bd82e8 19 #include "platform.h"
dgabino 0:c76361bd82e8 20 #include "ticker_api.h"
dgabino 0:c76361bd82e8 21
dgabino 0:c76361bd82e8 22 namespace mbed {
dgabino 0:c76361bd82e8 23
dgabino 0:c76361bd82e8 24 /** A general purpose timer
dgabino 0:c76361bd82e8 25 *
dgabino 0:c76361bd82e8 26 * @Note Synchronization level: Interrupt safe
dgabino 0:c76361bd82e8 27 *
dgabino 0:c76361bd82e8 28 * Example:
dgabino 0:c76361bd82e8 29 * @code
dgabino 0:c76361bd82e8 30 * // Count the time to toggle a LED
dgabino 0:c76361bd82e8 31 *
dgabino 0:c76361bd82e8 32 * #include "mbed.h"
dgabino 0:c76361bd82e8 33 *
dgabino 0:c76361bd82e8 34 * Timer timer;
dgabino 0:c76361bd82e8 35 * DigitalOut led(LED1);
dgabino 0:c76361bd82e8 36 * int begin, end;
dgabino 0:c76361bd82e8 37 *
dgabino 0:c76361bd82e8 38 * int main() {
dgabino 0:c76361bd82e8 39 * timer.start();
dgabino 0:c76361bd82e8 40 * begin = timer.read_us();
dgabino 0:c76361bd82e8 41 * led = !led;
dgabino 0:c76361bd82e8 42 * end = timer.read_us();
dgabino 0:c76361bd82e8 43 * printf("Toggle the led takes %d us", end - begin);
dgabino 0:c76361bd82e8 44 * }
dgabino 0:c76361bd82e8 45 * @endcode
dgabino 0:c76361bd82e8 46 */
dgabino 0:c76361bd82e8 47 class Timer {
dgabino 0:c76361bd82e8 48
dgabino 0:c76361bd82e8 49 public:
dgabino 0:c76361bd82e8 50 Timer();
dgabino 0:c76361bd82e8 51 Timer(const ticker_data_t *data);
dgabino 0:c76361bd82e8 52
dgabino 0:c76361bd82e8 53 /** Start the timer
dgabino 0:c76361bd82e8 54 */
dgabino 0:c76361bd82e8 55 void start();
dgabino 0:c76361bd82e8 56
dgabino 0:c76361bd82e8 57 /** Stop the timer
dgabino 0:c76361bd82e8 58 */
dgabino 0:c76361bd82e8 59 void stop();
dgabino 0:c76361bd82e8 60
dgabino 0:c76361bd82e8 61 /** Reset the timer to 0.
dgabino 0:c76361bd82e8 62 *
dgabino 0:c76361bd82e8 63 * If it was already counting, it will continue
dgabino 0:c76361bd82e8 64 */
dgabino 0:c76361bd82e8 65 void reset();
dgabino 0:c76361bd82e8 66
dgabino 0:c76361bd82e8 67 /** Get the time passed in seconds
dgabino 0:c76361bd82e8 68 */
dgabino 0:c76361bd82e8 69 float read();
dgabino 0:c76361bd82e8 70
dgabino 0:c76361bd82e8 71 /** Get the time passed in mili-seconds
dgabino 0:c76361bd82e8 72 */
dgabino 0:c76361bd82e8 73 int read_ms();
dgabino 0:c76361bd82e8 74
dgabino 0:c76361bd82e8 75 /** Get the time passed in micro-seconds
dgabino 0:c76361bd82e8 76 */
dgabino 0:c76361bd82e8 77 int read_us();
dgabino 0:c76361bd82e8 78
dgabino 0:c76361bd82e8 79 /** An operator shorthand for read()
dgabino 0:c76361bd82e8 80 */
dgabino 0:c76361bd82e8 81 operator float();
dgabino 0:c76361bd82e8 82
dgabino 0:c76361bd82e8 83 protected:
dgabino 0:c76361bd82e8 84 int slicetime();
dgabino 0:c76361bd82e8 85 int _running; // whether the timer is running
dgabino 0:c76361bd82e8 86 unsigned int _start; // the start time of the latest slice
dgabino 0:c76361bd82e8 87 int _time; // any accumulated time from previous slices
dgabino 0:c76361bd82e8 88 const ticker_data_t *_ticker_data;
dgabino 0:c76361bd82e8 89 };
dgabino 0:c76361bd82e8 90
dgabino 0:c76361bd82e8 91 } // namespace mbed
dgabino 0:c76361bd82e8 92
dgabino 0:c76361bd82e8 93 #endif