kopia lustrzana https://github.com/bristol-seds/pico-tracker
59 wiersze
1.9 KiB
C
59 wiersze
1.9 KiB
C
/*
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* Functions related to the watchdog.
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* Copyright (C) 2015 Richard Meadows <richardeoin>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in 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,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef WATCHDOG_H
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#define WATCHDOG_H
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#include "samd20.h"
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/**
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* These are random constants to prevent run-away code from
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* accidentially hitting them.
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*/
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typedef enum {
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IDLE_NONE,
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IDLE_TELEMETRY_ACTIVE = 0x15476064,
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IDLE_WAIT_FOR_NEXT_TELEMETRY = 0x36749870,
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} idle_wait_t;
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/**
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* Define how many iterations these loops are permitted before a reset
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* is triggered. Values defined to be well above values encountered in
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* normal operation.
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*/
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#define MAXIDLE_WHILE_TELEMETRY_ACTIVE 60000
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#define MAXIDLE_WAIT_FOR_NEXT_TELEMETRY 30000
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struct idle_counter {
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uint32_t while_telemetry_active;
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uint32_t wait_for_next_telemetry;
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};
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void awake_do_watchdog(void);
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void kick_the_watchdog(void);
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void idle(idle_wait_t idle_t);
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void watchdog_init(void);
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#endif /* WATCHDOG_H */
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