47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
#ifndef WATCHDOGSAMD_H
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#define WATCHDOGSAMD_H
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#include <Arduino.h>
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class WatchdogSAMD {
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public:
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WatchdogSAMD() : _initialized(false) {}
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// Enable the watchdog timer to reset the machine after a period of time
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// without any calls to reset(). The passed in period (in milliseconds)
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// is just a suggestion and a lower value might be picked if the hardware
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// does not support the exact desired value.
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// User code should NOT set the 'isForSleep' argument either way --
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// it's used internally by the library, but your sketch should leave this
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// out when calling enable(), just let the default have its way.
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//
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// The actual period (in milliseconds) before a watchdog timer reset is
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// returned.
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int enable(int maxPeriodMS = 0, bool isForSleep = false);
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// Reset or 'kick' the watchdog timer to prevent a reset of the device.
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void reset();
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// Find out the cause of the last reset - see datasheet for bitmask
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uint8_t resetCause();
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// Completely disable the watchdog timer.
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void disable();
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// Enter the lowest power sleep mode (using the watchdog timer) for the
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// desired period of time. The passed in period (in milliseconds) is
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// just a suggestion and a lower value might be picked if the hardware
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// does not support the exact desired value
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//
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// The actual period (in milliseconds) that the hardware was asleep will be
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// returned.
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int sleep(int maxPeriodMS = 0);
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private:
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void _initialize_wdt();
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bool _initialized;
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};
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#endif
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