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- #include "Marlin.h"
-
- #ifdef USE_WATCHDOG
- #include "watchdog.h"
- #include "ultralcd.h"
-
- //===========================================================================
- //=============================private variables ============================
- //===========================================================================
-
- //===========================================================================
- //=============================functinos ============================
- //===========================================================================
-
-
- /// intialise watch dog with a 1 sec interrupt time
- void watchdog_init()
- {
- #ifdef RESET_MANUAL
- //We enable the watchdog timer, but only for the interrupt.
- //Take care, as this requires the correct order of operation, with interrupts disabled. See the datasheet of any AVR chip for details.
- wdt_reset();
- _WD_CONTROL_REG = _BV(_WD_CHANGE_BIT) | _BV(WDE);
- _WD_CONTROL_REG = _BV(WDIE) | WDTO_1S;
- #else
- wdt_enable(WDTO_1S);
- #endif
- }
-
- /// reset watchdog. MUST be called every 1s after init or avr will reset.
- void watchdog_reset()
- {
- wdt_reset();
- }
-
- //===========================================================================
- //=============================ISR ============================
- //===========================================================================
-
- //Watchdog timer interrupt, called if main program blocks >1sec and manual reset is enabled.
- #ifdef RESET_MANUAL
- ISR(WDT_vect)
- {
- LCD_MESSAGEPGM("ERR:Please Reset");//16 characters so it fits on a 16x2 display
- LCD_STATUS;
- SERIAL_ERROR_START;
- SERIAL_ERRORLNPGM("Something is wrong, please turn off the printer.");
-
- kill(); //kill blocks
- while(1); //wait for user or serial reset
- }
- #endif//RESET_MANUAL
-
- #endif//USE_WATCHDOG
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