Initial commit
mbed-dev-master/drivers/Ticker.cpp@0:bb348c97df44, 2020-09-16 (annotated)
- Committer:
- lypinator
- Date:
- Wed Sep 16 01:11:49 2020 +0000
- Revision:
- 0:bb348c97df44
Added PWM
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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lypinator | 0:bb348c97df44 | 1 | /* mbed Microcontroller Library |
lypinator | 0:bb348c97df44 | 2 | * Copyright (c) 2006-2013 ARM Limited |
lypinator | 0:bb348c97df44 | 3 | * |
lypinator | 0:bb348c97df44 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
lypinator | 0:bb348c97df44 | 5 | * you may not use this file except in compliance with the License. |
lypinator | 0:bb348c97df44 | 6 | * You may obtain a copy of the License at |
lypinator | 0:bb348c97df44 | 7 | * |
lypinator | 0:bb348c97df44 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
lypinator | 0:bb348c97df44 | 9 | * |
lypinator | 0:bb348c97df44 | 10 | * Unless required by applicable law or agreed to in writing, software |
lypinator | 0:bb348c97df44 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
lypinator | 0:bb348c97df44 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
lypinator | 0:bb348c97df44 | 13 | * See the License for the specific language governing permissions and |
lypinator | 0:bb348c97df44 | 14 | * limitations under the License. |
lypinator | 0:bb348c97df44 | 15 | */ |
lypinator | 0:bb348c97df44 | 16 | #include "drivers/Ticker.h" |
lypinator | 0:bb348c97df44 | 17 | |
lypinator | 0:bb348c97df44 | 18 | #include "drivers/TimerEvent.h" |
lypinator | 0:bb348c97df44 | 19 | #include "platform/FunctionPointer.h" |
lypinator | 0:bb348c97df44 | 20 | #include "hal/ticker_api.h" |
lypinator | 0:bb348c97df44 | 21 | #include "platform/mbed_critical.h" |
lypinator | 0:bb348c97df44 | 22 | |
lypinator | 0:bb348c97df44 | 23 | namespace mbed { |
lypinator | 0:bb348c97df44 | 24 | |
lypinator | 0:bb348c97df44 | 25 | void Ticker::detach() |
lypinator | 0:bb348c97df44 | 26 | { |
lypinator | 0:bb348c97df44 | 27 | core_util_critical_section_enter(); |
lypinator | 0:bb348c97df44 | 28 | remove(); |
lypinator | 0:bb348c97df44 | 29 | // unlocked only if we were attached (we locked it) and this is not low power ticker |
lypinator | 0:bb348c97df44 | 30 | if (_function && _lock_deepsleep) { |
lypinator | 0:bb348c97df44 | 31 | sleep_manager_unlock_deep_sleep(); |
lypinator | 0:bb348c97df44 | 32 | } |
lypinator | 0:bb348c97df44 | 33 | |
lypinator | 0:bb348c97df44 | 34 | _function = 0; |
lypinator | 0:bb348c97df44 | 35 | core_util_critical_section_exit(); |
lypinator | 0:bb348c97df44 | 36 | } |
lypinator | 0:bb348c97df44 | 37 | |
lypinator | 0:bb348c97df44 | 38 | void Ticker::setup(us_timestamp_t t) |
lypinator | 0:bb348c97df44 | 39 | { |
lypinator | 0:bb348c97df44 | 40 | core_util_critical_section_enter(); |
lypinator | 0:bb348c97df44 | 41 | remove(); |
lypinator | 0:bb348c97df44 | 42 | _delay = t; |
lypinator | 0:bb348c97df44 | 43 | insert_absolute(_delay + ticker_read_us(_ticker_data)); |
lypinator | 0:bb348c97df44 | 44 | core_util_critical_section_exit(); |
lypinator | 0:bb348c97df44 | 45 | } |
lypinator | 0:bb348c97df44 | 46 | |
lypinator | 0:bb348c97df44 | 47 | void Ticker::handler() |
lypinator | 0:bb348c97df44 | 48 | { |
lypinator | 0:bb348c97df44 | 49 | insert_absolute(event.timestamp + _delay); |
lypinator | 0:bb348c97df44 | 50 | if (_function) { |
lypinator | 0:bb348c97df44 | 51 | _function(); |
lypinator | 0:bb348c97df44 | 52 | } |
lypinator | 0:bb348c97df44 | 53 | } |
lypinator | 0:bb348c97df44 | 54 | |
lypinator | 0:bb348c97df44 | 55 | } // namespace mbed |