Marlin_Firmware/Marlin/watchdog.h

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#ifndef __WATCHDOGH
#define __WATCHDOGH
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#include "Configuration.h"
#ifdef USE_WATCHDOG
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// intialise watch dog with a 1 sec interrupt time
void wd_init();
// pad the dog/reset watchdog. MUST be called at least every second after the first wd_init or avr will go into emergency procedures..
void wd_reset();
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#else
inline void wd_init() {};
inline void wd_reset() {};
#endif
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#endif