Milen Pavlov / XRange_mbed_src

Mbed SDK for XRange SX1272 LoRa module

Dependents:   XRangePingPong XRange-LoRaWAN-lmic-app lora-transceiver

SX1272 LoRa RF module

https://www.netblocks.eu/xrange-sx1272-lora-datasheet/

api/Timer.h@339:ac6f3fd999f3, 2016-01-07 (annotated)

Committer:
netblocks
Date:
Thu Jan 07 13:01:25 2016 +0000
Revision:
339:ac6f3fd999f3
Parent:
336:1e18a06a987b 
HSE_VALUE set for XTAL 16Mhz

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dudmuck 336:1e18a06a987b 1 /* mbed Microcontroller Library
dudmuck 336:1e18a06a987b 2 * Copyright (c) 2006-2013 ARM Limited
dudmuck 336:1e18a06a987b 3 *
dudmuck 336:1e18a06a987b 4 * Licensed under the Apache License, Version 2.0 (the "License");
dudmuck 336:1e18a06a987b 5 * you may not use this file except in compliance with the License.
dudmuck 336:1e18a06a987b 6 * You may obtain a copy of the License at
dudmuck 336:1e18a06a987b 7 *
dudmuck 336:1e18a06a987b 8 * http://www.apache.org/licenses/LICENSE-2.0
dudmuck 336:1e18a06a987b 9 *
dudmuck 336:1e18a06a987b 10 * Unless required by applicable law or agreed to in writing, software
dudmuck 336:1e18a06a987b 11 * distributed under the License is distributed on an "AS IS" BASIS,
dudmuck 336:1e18a06a987b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dudmuck 336:1e18a06a987b 13 * See the License for the specific language governing permissions and
dudmuck 336:1e18a06a987b 14 * limitations under the License.
dudmuck 336:1e18a06a987b 15 */
dudmuck 336:1e18a06a987b 16 #ifndef MBED_TIMER_H
dudmuck 336:1e18a06a987b 17 #define MBED_TIMER_H
dudmuck 336:1e18a06a987b 18
dudmuck 336:1e18a06a987b 19 #include "platform.h"
dudmuck 336:1e18a06a987b 20
dudmuck 336:1e18a06a987b 21 namespace mbed {
dudmuck 336:1e18a06a987b 22
dudmuck 336:1e18a06a987b 23 /** A general purpose timer
dudmuck 336:1e18a06a987b 24 *
dudmuck 336:1e18a06a987b 25 * Example:
dudmuck 336:1e18a06a987b 26 * @code
dudmuck 336:1e18a06a987b 27 * // Count the time to toggle a LED
dudmuck 336:1e18a06a987b 28 *
dudmuck 336:1e18a06a987b 29 * #include "mbed.h"
dudmuck 336:1e18a06a987b 30 *
dudmuck 336:1e18a06a987b 31 * Timer timer;
dudmuck 336:1e18a06a987b 32 * DigitalOut led(LED1);
dudmuck 336:1e18a06a987b 33 * int begin, end;
dudmuck 336:1e18a06a987b 34 *
dudmuck 336:1e18a06a987b 35 * int main() {
dudmuck 336:1e18a06a987b 36 * timer.start();
dudmuck 336:1e18a06a987b 37 * begin = timer.read_us();
dudmuck 336:1e18a06a987b 38 * led = !led;
dudmuck 336:1e18a06a987b 39 * end = timer.read_us();
dudmuck 336:1e18a06a987b 40 * printf("Toggle the led takes %d us", end - begin);
dudmuck 336:1e18a06a987b 41 * }
dudmuck 336:1e18a06a987b 42 * @endcode
dudmuck 336:1e18a06a987b 43 */
dudmuck 336:1e18a06a987b 44 class Timer {
dudmuck 336:1e18a06a987b 45
dudmuck 336:1e18a06a987b 46 public:
dudmuck 336:1e18a06a987b 47 Timer();
dudmuck 336:1e18a06a987b 48
dudmuck 336:1e18a06a987b 49 /** Start the timer
dudmuck 336:1e18a06a987b 50 */
dudmuck 336:1e18a06a987b 51 void start();
dudmuck 336:1e18a06a987b 52
dudmuck 336:1e18a06a987b 53 /** Stop the timer
dudmuck 336:1e18a06a987b 54 */
dudmuck 336:1e18a06a987b 55 void stop();
dudmuck 336:1e18a06a987b 56
dudmuck 336:1e18a06a987b 57 /** Reset the timer to 0.
dudmuck 336:1e18a06a987b 58 *
dudmuck 336:1e18a06a987b 59 * If it was already counting, it will continue
dudmuck 336:1e18a06a987b 60 */
dudmuck 336:1e18a06a987b 61 void reset();
dudmuck 336:1e18a06a987b 62
dudmuck 336:1e18a06a987b 63 /** Get the time passed in seconds
dudmuck 336:1e18a06a987b 64 */
dudmuck 336:1e18a06a987b 65 float read();
dudmuck 336:1e18a06a987b 66
dudmuck 336:1e18a06a987b 67 /** Get the time passed in mili-seconds
dudmuck 336:1e18a06a987b 68 */
dudmuck 336:1e18a06a987b 69 int read_ms();
dudmuck 336:1e18a06a987b 70
dudmuck 336:1e18a06a987b 71 /** Get the time passed in micro-seconds
dudmuck 336:1e18a06a987b 72 */
dudmuck 336:1e18a06a987b 73 int read_us();
dudmuck 336:1e18a06a987b 74
dudmuck 336:1e18a06a987b 75 #ifdef MBED_OPERATORS
dudmuck 336:1e18a06a987b 76 operator float();
dudmuck 336:1e18a06a987b 77 #endif
dudmuck 336:1e18a06a987b 78
dudmuck 336:1e18a06a987b 79 protected:
dudmuck 336:1e18a06a987b 80 int slicetime();
dudmuck 336:1e18a06a987b 81 int _running; // whether the timer is running
dudmuck 336:1e18a06a987b 82 unsigned int _start; // the start time of the latest slice
dudmuck 336:1e18a06a987b 83 int _time; // any accumulated time from previous slices
dudmuck 336:1e18a06a987b 84 };
dudmuck 336:1e18a06a987b 85
dudmuck 336:1e18a06a987b 86 } // namespace mbed
dudmuck 336:1e18a06a987b 87
dudmuck 336:1e18a06a987b 88 #endif