takashi kadono / Mbed OS Nucleo_446

Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466

Dependencies:   ssd1331

mbed-os/drivers/Timer.cpp@3:f3764f852aa8, 2018-10-11 (annotated)

Committer:
kadonotakashi
Date:
Thu Oct 11 02:27:46 2018 +0000
Revision:
3:f3764f852aa8
Parent:
0:8fdf9a60065b 
Nucreo 446 + SSD1331 test version;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kadonotakashi 0:8fdf9a60065b 1 /* mbed Microcontroller Library
kadonotakashi 0:8fdf9a60065b 2 * Copyright (c) 2006-2013 ARM Limited
kadonotakashi 0:8fdf9a60065b 3 *
kadonotakashi 0:8fdf9a60065b 4 * Licensed under the Apache License, Version 2.0 (the "License");
kadonotakashi 0:8fdf9a60065b 5 * you may not use this file except in compliance with the License.
kadonotakashi 0:8fdf9a60065b 6 * You may obtain a copy of the License at
kadonotakashi 0:8fdf9a60065b 7 *
kadonotakashi 0:8fdf9a60065b 8 * http://www.apache.org/licenses/LICENSE-2.0
kadonotakashi 0:8fdf9a60065b 9 *
kadonotakashi 0:8fdf9a60065b 10 * Unless required by applicable law or agreed to in writing, software
kadonotakashi 0:8fdf9a60065b 11 * distributed under the License is distributed on an "AS IS" BASIS,
kadonotakashi 0:8fdf9a60065b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kadonotakashi 0:8fdf9a60065b 13 * See the License for the specific language governing permissions and
kadonotakashi 0:8fdf9a60065b 14 * limitations under the License.
kadonotakashi 0:8fdf9a60065b 15 */
kadonotakashi 0:8fdf9a60065b 16 #include "drivers/Timer.h"
kadonotakashi 0:8fdf9a60065b 17 #include "hal/ticker_api.h"
kadonotakashi 0:8fdf9a60065b 18 #include "hal/us_ticker_api.h"
kadonotakashi 0:8fdf9a60065b 19 #include "platform/mbed_critical.h"
kadonotakashi 0:8fdf9a60065b 20 #include "hal/lp_ticker_api.h"
kadonotakashi 0:8fdf9a60065b 21
kadonotakashi 0:8fdf9a60065b 22 namespace mbed {
kadonotakashi 0:8fdf9a60065b 23
kadonotakashi 0:8fdf9a60065b 24 Timer::Timer() : _running(), _start(), _time(), _ticker_data(get_us_ticker_data()), _lock_deepsleep(true)
kadonotakashi 0:8fdf9a60065b 25 {
kadonotakashi 0:8fdf9a60065b 26 reset();
kadonotakashi 0:8fdf9a60065b 27 }
kadonotakashi 0:8fdf9a60065b 28
kadonotakashi 0:8fdf9a60065b 29 Timer::Timer(const ticker_data_t *data) : _running(), _start(), _time(), _ticker_data(data), _lock_deepsleep(true)
kadonotakashi 0:8fdf9a60065b 30 {
kadonotakashi 0:8fdf9a60065b 31 reset();
kadonotakashi 0:8fdf9a60065b 32 #if DEVICE_LPTICKER
kadonotakashi 0:8fdf9a60065b 33 _lock_deepsleep = (data != get_lp_ticker_data());
kadonotakashi 0:8fdf9a60065b 34 #endif
kadonotakashi 0:8fdf9a60065b 35 }
kadonotakashi 0:8fdf9a60065b 36
kadonotakashi 0:8fdf9a60065b 37 Timer::~Timer()
kadonotakashi 0:8fdf9a60065b 38 {
kadonotakashi 0:8fdf9a60065b 39 core_util_critical_section_enter();
kadonotakashi 0:8fdf9a60065b 40 if (_running) {
kadonotakashi 0:8fdf9a60065b 41 if (_lock_deepsleep) {
kadonotakashi 0:8fdf9a60065b 42 sleep_manager_unlock_deep_sleep();
kadonotakashi 0:8fdf9a60065b 43 }
kadonotakashi 0:8fdf9a60065b 44 }
kadonotakashi 0:8fdf9a60065b 45 _running = 0;
kadonotakashi 0:8fdf9a60065b 46 core_util_critical_section_exit();
kadonotakashi 0:8fdf9a60065b 47 }
kadonotakashi 0:8fdf9a60065b 48
kadonotakashi 0:8fdf9a60065b 49 void Timer::start()
kadonotakashi 0:8fdf9a60065b 50 {
kadonotakashi 0:8fdf9a60065b 51 core_util_critical_section_enter();
kadonotakashi 0:8fdf9a60065b 52 if (!_running) {
kadonotakashi 0:8fdf9a60065b 53 if (_lock_deepsleep) {
kadonotakashi 0:8fdf9a60065b 54 sleep_manager_lock_deep_sleep();
kadonotakashi 0:8fdf9a60065b 55 }
kadonotakashi 0:8fdf9a60065b 56 _start = ticker_read_us(_ticker_data);
kadonotakashi 0:8fdf9a60065b 57 _running = 1;
kadonotakashi 0:8fdf9a60065b 58 }
kadonotakashi 0:8fdf9a60065b 59 core_util_critical_section_exit();
kadonotakashi 0:8fdf9a60065b 60 }
kadonotakashi 0:8fdf9a60065b 61
kadonotakashi 0:8fdf9a60065b 62 void Timer::stop()
kadonotakashi 0:8fdf9a60065b 63 {
kadonotakashi 0:8fdf9a60065b 64 core_util_critical_section_enter();
kadonotakashi 0:8fdf9a60065b 65 _time += slicetime();
kadonotakashi 0:8fdf9a60065b 66 if (_running) {
kadonotakashi 0:8fdf9a60065b 67 if (_lock_deepsleep) {
kadonotakashi 0:8fdf9a60065b 68 sleep_manager_unlock_deep_sleep();
kadonotakashi 0:8fdf9a60065b 69 }
kadonotakashi 0:8fdf9a60065b 70 }
kadonotakashi 0:8fdf9a60065b 71 _running = 0;
kadonotakashi 0:8fdf9a60065b 72 core_util_critical_section_exit();
kadonotakashi 0:8fdf9a60065b 73 }
kadonotakashi 0:8fdf9a60065b 74
kadonotakashi 0:8fdf9a60065b 75 int Timer::read_us()
kadonotakashi 0:8fdf9a60065b 76 {
kadonotakashi 0:8fdf9a60065b 77 return read_high_resolution_us();
kadonotakashi 0:8fdf9a60065b 78 }
kadonotakashi 0:8fdf9a60065b 79
kadonotakashi 0:8fdf9a60065b 80 float Timer::read()
kadonotakashi 0:8fdf9a60065b 81 {
kadonotakashi 0:8fdf9a60065b 82 return (float)read_high_resolution_us() / 1000000.0f;
kadonotakashi 0:8fdf9a60065b 83 }
kadonotakashi 0:8fdf9a60065b 84
kadonotakashi 0:8fdf9a60065b 85 int Timer::read_ms()
kadonotakashi 0:8fdf9a60065b 86 {
kadonotakashi 0:8fdf9a60065b 87 return read_high_resolution_us() / 1000;
kadonotakashi 0:8fdf9a60065b 88 }
kadonotakashi 0:8fdf9a60065b 89
kadonotakashi 0:8fdf9a60065b 90 us_timestamp_t Timer::read_high_resolution_us()
kadonotakashi 0:8fdf9a60065b 91 {
kadonotakashi 0:8fdf9a60065b 92 core_util_critical_section_enter();
kadonotakashi 0:8fdf9a60065b 93 us_timestamp_t time = _time + slicetime();
kadonotakashi 0:8fdf9a60065b 94 core_util_critical_section_exit();
kadonotakashi 0:8fdf9a60065b 95 return time;
kadonotakashi 0:8fdf9a60065b 96 }
kadonotakashi 0:8fdf9a60065b 97
kadonotakashi 0:8fdf9a60065b 98 us_timestamp_t Timer::slicetime()
kadonotakashi 0:8fdf9a60065b 99 {
kadonotakashi 0:8fdf9a60065b 100 us_timestamp_t ret = 0;
kadonotakashi 0:8fdf9a60065b 101 core_util_critical_section_enter();
kadonotakashi 0:8fdf9a60065b 102 if (_running) {
kadonotakashi 0:8fdf9a60065b 103 ret = ticker_read_us(_ticker_data) - _start;
kadonotakashi 0:8fdf9a60065b 104 }
kadonotakashi 0:8fdf9a60065b 105 core_util_critical_section_exit();
kadonotakashi 0:8fdf9a60065b 106 return ret;
kadonotakashi 0:8fdf9a60065b 107 }
kadonotakashi 0:8fdf9a60065b 108
kadonotakashi 0:8fdf9a60065b 109 void Timer::reset()
kadonotakashi 0:8fdf9a60065b 110 {
kadonotakashi 0:8fdf9a60065b 111 core_util_critical_section_enter();
kadonotakashi 0:8fdf9a60065b 112 _start = ticker_read_us(_ticker_data);
kadonotakashi 0:8fdf9a60065b 113 _time = 0;
kadonotakashi 0:8fdf9a60065b 114 core_util_critical_section_exit();
kadonotakashi 0:8fdf9a60065b 115 }
kadonotakashi 0:8fdf9a60065b 116
kadonotakashi 0:8fdf9a60065b 117 Timer::operator float()
kadonotakashi 0:8fdf9a60065b 118 {
kadonotakashi 0:8fdf9a60065b 119 return read();
kadonotakashi 0:8fdf9a60065b 120 }
kadonotakashi 0:8fdf9a60065b 121
kadonotakashi 0:8fdf9a60065b 122 } // namespace mbed