modtronix H / mbed_nz32sc151

mbed library for NZ32-SC151

common/Timer.cpp@17:639ed60ce759, 2016-08-19 (annotated)

Committer:
modtronix-com
Date:
Fri Aug 19 15:46:42 2016 +1000
Revision:
17:639ed60ce759
Parent:
1:71204b8406f2 
Added tag v1.1 for changeset 076cbe3e55be

Who changed what in which revision?

UserRevisionLine numberNew contents of line
modtronix 1:71204b8406f2 1 /* mbed Microcontroller Library
modtronix 1:71204b8406f2 2 * Copyright (c) 2006-2013 ARM Limited
modtronix 1:71204b8406f2 3 *
modtronix 1:71204b8406f2 4 * Licensed under the Apache License, Version 2.0 (the "License");
modtronix 1:71204b8406f2 5 * you may not use this file except in compliance with the License.
modtronix 1:71204b8406f2 6 * You may obtain a copy of the License at
modtronix 1:71204b8406f2 7 *
modtronix 1:71204b8406f2 8 * http://www.apache.org/licenses/LICENSE-2.0
modtronix 1:71204b8406f2 9 *
modtronix 1:71204b8406f2 10 * Unless required by applicable law or agreed to in writing, software
modtronix 1:71204b8406f2 11 * distributed under the License is distributed on an "AS IS" BASIS,
modtronix 1:71204b8406f2 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
modtronix 1:71204b8406f2 13 * See the License for the specific language governing permissions and
modtronix 1:71204b8406f2 14 * limitations under the License.
modtronix 1:71204b8406f2 15 */
modtronix 1:71204b8406f2 16 #include "Timer.h"
modtronix 1:71204b8406f2 17 #include "ticker_api.h"
modtronix 1:71204b8406f2 18 #include "us_ticker_api.h"
modtronix 1:71204b8406f2 19
modtronix 1:71204b8406f2 20 namespace mbed {
modtronix 1:71204b8406f2 21
modtronix 1:71204b8406f2 22 Timer::Timer() : _running(), _start(), _time(), _ticker_data(get_us_ticker_data()) {
modtronix 1:71204b8406f2 23 reset();
modtronix 1:71204b8406f2 24 }
modtronix 1:71204b8406f2 25
modtronix 1:71204b8406f2 26 Timer::Timer(const ticker_data_t *data) : _running(), _start(), _time(), _ticker_data(data) {
modtronix 1:71204b8406f2 27 reset();
modtronix 1:71204b8406f2 28 }
modtronix 1:71204b8406f2 29
modtronix 1:71204b8406f2 30 void Timer::start() {
modtronix 1:71204b8406f2 31 if (!_running) {
modtronix 1:71204b8406f2 32 _start = ticker_read(_ticker_data);
modtronix 1:71204b8406f2 33 _running = 1;
modtronix 1:71204b8406f2 34 }
modtronix 1:71204b8406f2 35 }
modtronix 1:71204b8406f2 36
modtronix 1:71204b8406f2 37 void Timer::stop() {
modtronix 1:71204b8406f2 38 _time += slicetime();
modtronix 1:71204b8406f2 39 _running = 0;
modtronix 1:71204b8406f2 40 }
modtronix 1:71204b8406f2 41
modtronix 1:71204b8406f2 42 int Timer::read_us() {
modtronix 1:71204b8406f2 43 return _time + slicetime();
modtronix 1:71204b8406f2 44 }
modtronix 1:71204b8406f2 45
modtronix 1:71204b8406f2 46 float Timer::read() {
modtronix 1:71204b8406f2 47 return (float)read_us() / 1000000.0f;
modtronix 1:71204b8406f2 48 }
modtronix 1:71204b8406f2 49
modtronix 1:71204b8406f2 50 int Timer::read_ms() {
modtronix 1:71204b8406f2 51 return read_us() / 1000;
modtronix 1:71204b8406f2 52 }
modtronix 1:71204b8406f2 53
modtronix 1:71204b8406f2 54 int Timer::slicetime() {
modtronix 1:71204b8406f2 55 if (_running) {
modtronix 1:71204b8406f2 56 return ticker_read(_ticker_data) - _start;
modtronix 1:71204b8406f2 57 } else {
modtronix 1:71204b8406f2 58 return 0;
modtronix 1:71204b8406f2 59 }
modtronix 1:71204b8406f2 60 }
modtronix 1:71204b8406f2 61
modtronix 1:71204b8406f2 62 void Timer::reset() {
modtronix 1:71204b8406f2 63 _start = ticker_read(_ticker_data);
modtronix 1:71204b8406f2 64 _time = 0;
modtronix 1:71204b8406f2 65 }
modtronix 1:71204b8406f2 66
modtronix 1:71204b8406f2 67 #ifdef MBED_OPERATORS
modtronix 1:71204b8406f2 68 Timer::operator float() {
modtronix 1:71204b8406f2 69 return read();
modtronix 1:71204b8406f2 70 }
modtronix 1:71204b8406f2 71 #endif
modtronix 1:71204b8406f2 72
modtronix 1:71204b8406f2 73 } // namespace mbed