110 lines
4.1 KiB
C
110 lines
4.1 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Paul Sokolovsky
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <string.h>
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#include "py/runtime.h"
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#include "shared-bindings/watchdog/__init__.h"
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#include "shared-bindings/watchdog/WatchDogMode.h"
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//| """Watchdog Timer
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//|
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//| The `watchdog` module provides support for a Watchdog Timer. This timer will reset the device
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//| if it hasn't been fed after a specified amount of time. This is useful to ensure the board
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//| has not crashed or locked up. Note that on some platforms the watchdog timer cannot be disabled
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//| once it has been enabled.
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//|
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//| The `WatchDogTimer` is used to restart the system when the application crashes and ends
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//| up into a non recoverable state. Once started it cannot be stopped or
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//| reconfigured in any way. After enabling, the application must "feed" the
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//| watchdog periodically to prevent it from expiring and resetting the system.
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//|
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//| Example usage::
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//|
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//| from microcontroller import watchdog as w
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//| from watchdog import WatchDogMode
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//| w.timeout=2.5 # Set a timeout of 2.5 seconds
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//| w.mode = WatchDogMode.RAISE
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//| w.feed()"""
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//|
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//| class WatchDogTimeout(Exception):
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//| """Exception raised when the watchdog timer is set to
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//| ``WatchDogMode.RAISE`` and expires.
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//|
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//| Example::
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//|
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//| import microcontroller
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//| import watchdog
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//| import time
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//|
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//| wdt = microcontroller.watchdog
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//| wdt.timeout = 5
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//|
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//| while True:
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//| wdt.mode = watchdog.WatchDogMode.RAISE
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//| print("Starting loop -- should exit after five seconds")
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//| try:
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//| while True:
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//| time.sleep(10) # Also works with pass
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//| except watchdog.WatchDogTimeout as e:
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//| print("Watchdog expired")
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//| except Exception as e:
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//| print("Other exception")
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//|
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//| print("Exited loop")
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//| """
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//|
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const mp_obj_type_t mp_type_WatchDogTimeout = {
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{ &mp_type_type },
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.name = MP_QSTR_WatchDogTimeout,
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.make_new = mp_obj_exception_make_new,
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.attr = mp_obj_exception_attr,
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.parent = &mp_type_Exception,
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};
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mp_obj_exception_t mp_watchdog_timeout_exception = {
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.base.type = &mp_type_WatchDogTimeout,
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.args = (mp_obj_tuple_t *)&mp_const_empty_tuple_obj,
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.traceback = (mp_obj_traceback_t *)&mp_const_empty_traceback_obj,
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};
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STATIC const mp_rom_map_elem_t watchdog_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_watchdog) },
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{ MP_ROM_QSTR(MP_QSTR_WatchDogMode), MP_ROM_PTR(&watchdog_watchdogmode_type) },
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{ MP_ROM_QSTR(MP_QSTR_WatchDogTimeout), MP_ROM_PTR(&mp_type_WatchDogTimeout) },
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};
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STATIC MP_DEFINE_CONST_DICT(watchdog_module_globals, watchdog_module_globals_table);
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const mp_obj_module_t watchdog_module = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t *)&watchdog_module_globals,
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};
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MP_REGISTER_MODULE(MP_QSTR_watchdog, watchdog_module, CIRCUITPY_WATCHDOG);
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