Aravind Vadali / mbed-src-AV

mbed.h library with any bug fixes AV finds.

Dependents:   micromouse4_encoder_testing PID_Test Lab1_Test WorkingPID ... more

common/Timer.cpp@0:ba7650f404af, 2015-11-02 (annotated)

Committer:
aravindsv
Date:
Mon Nov 02 02:26:59 2015 +0000
Revision:
0:ba7650f404af
Reduced HSE_STARTUP_TIMEOUT to 500 ms, fixed some compiler warnings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aravindsv 0:ba7650f404af 1 /* mbed Microcontroller Library
aravindsv 0:ba7650f404af 2 * Copyright (c) 2006-2013 ARM Limited
aravindsv 0:ba7650f404af 3 *
aravindsv 0:ba7650f404af 4 * Licensed under the Apache License, Version 2.0 (the "License");
aravindsv 0:ba7650f404af 5 * you may not use this file except in compliance with the License.
aravindsv 0:ba7650f404af 6 * You may obtain a copy of the License at
aravindsv 0:ba7650f404af 7 *
aravindsv 0:ba7650f404af 8 * http://www.apache.org/licenses/LICENSE-2.0
aravindsv 0:ba7650f404af 9 *
aravindsv 0:ba7650f404af 10 * Unless required by applicable law or agreed to in writing, software
aravindsv 0:ba7650f404af 11 * distributed under the License is distributed on an "AS IS" BASIS,
aravindsv 0:ba7650f404af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
aravindsv 0:ba7650f404af 13 * See the License for the specific language governing permissions and
aravindsv 0:ba7650f404af 14 * limitations under the License.
aravindsv 0:ba7650f404af 15 */
aravindsv 0:ba7650f404af 16 #include "Timer.h"
aravindsv 0:ba7650f404af 17 #include "ticker_api.h"
aravindsv 0:ba7650f404af 18 #include "us_ticker_api.h"
aravindsv 0:ba7650f404af 19
aravindsv 0:ba7650f404af 20 namespace mbed {
aravindsv 0:ba7650f404af 21
aravindsv 0:ba7650f404af 22 Timer::Timer() : _running(), _start(), _time(), _ticker_data(get_us_ticker_data()) {
aravindsv 0:ba7650f404af 23 reset();
aravindsv 0:ba7650f404af 24 }
aravindsv 0:ba7650f404af 25
aravindsv 0:ba7650f404af 26 Timer::Timer(const ticker_data_t *data) : _running(), _start(), _time(), _ticker_data(data) {
aravindsv 0:ba7650f404af 27 reset();
aravindsv 0:ba7650f404af 28 }
aravindsv 0:ba7650f404af 29
aravindsv 0:ba7650f404af 30 void Timer::start() {
aravindsv 0:ba7650f404af 31 if (!_running) {
aravindsv 0:ba7650f404af 32 _start = ticker_read(_ticker_data);
aravindsv 0:ba7650f404af 33 _running = 1;
aravindsv 0:ba7650f404af 34 }
aravindsv 0:ba7650f404af 35 }
aravindsv 0:ba7650f404af 36
aravindsv 0:ba7650f404af 37 void Timer::stop() {
aravindsv 0:ba7650f404af 38 _time += slicetime();
aravindsv 0:ba7650f404af 39 _running = 0;
aravindsv 0:ba7650f404af 40 }
aravindsv 0:ba7650f404af 41
aravindsv 0:ba7650f404af 42 int Timer::read_us() {
aravindsv 0:ba7650f404af 43 return _time + slicetime();
aravindsv 0:ba7650f404af 44 }
aravindsv 0:ba7650f404af 45
aravindsv 0:ba7650f404af 46 float Timer::read() {
aravindsv 0:ba7650f404af 47 return (float)read_us() / 1000000.0f;
aravindsv 0:ba7650f404af 48 }
aravindsv 0:ba7650f404af 49
aravindsv 0:ba7650f404af 50 int Timer::read_ms() {
aravindsv 0:ba7650f404af 51 return read_us() / 1000;
aravindsv 0:ba7650f404af 52 }
aravindsv 0:ba7650f404af 53
aravindsv 0:ba7650f404af 54 int Timer::slicetime() {
aravindsv 0:ba7650f404af 55 if (_running) {
aravindsv 0:ba7650f404af 56 return ticker_read(_ticker_data) - _start;
aravindsv 0:ba7650f404af 57 } else {
aravindsv 0:ba7650f404af 58 return 0;
aravindsv 0:ba7650f404af 59 }
aravindsv 0:ba7650f404af 60 }
aravindsv 0:ba7650f404af 61
aravindsv 0:ba7650f404af 62 void Timer::reset() {
aravindsv 0:ba7650f404af 63 _start = ticker_read(_ticker_data);
aravindsv 0:ba7650f404af 64 _time = 0;
aravindsv 0:ba7650f404af 65 }
aravindsv 0:ba7650f404af 66
aravindsv 0:ba7650f404af 67 #ifdef MBED_OPERATORS
aravindsv 0:ba7650f404af 68 Timer::operator float() {
aravindsv 0:ba7650f404af 69 return read();
aravindsv 0:ba7650f404af 70 }
aravindsv 0:ba7650f404af 71 #endif
aravindsv 0:ba7650f404af 72
aravindsv 0:ba7650f404af 73 } // namespace mbed