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61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2006-2013 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_WATCHDOG_API_H
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#define MBED_WATCHDOG_API_H
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#include "device.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef void (*wdt_irq_handler)(uint32_t id);
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/** Initial the watch dog time setting
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*
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* This function will initial and enable the watchdog timer with a given timeout value.
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* When the watchdog timer timeout event is triggered, the system will be reset. User also can
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* register a callback function to handle the watchdog timer timeout event.
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*/
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void watchdog_init(uint32_t timeout_ms);
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/** Start the watchdog counting
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*
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* This function will active the watchdog timer down counting. When the watchdog timer count down
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* to 0, a callback function will be called or the system will be reset.
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*/
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void watchdog_start(void);
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/** Stop the watchdog counting
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*
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* This function will stop the watchdog timer down counting. If a user application aware a
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* procedure may takes too long and cause the watchdog timer timeout, the application use this
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* function to stop the watchdog timer to prevent the watchdog timer timeout.
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*/
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void watchdog_stop(void);
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/** Refresh the watchdog counting
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*
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* This function will reload the watchdog timer counting value. Usually a application do the watchdog
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* timer reflash in the main loop to prevent the watchdog timer timeout.
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*/
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void watchdog_refresh(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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