Marlin_Firmware/Marlin/watchdog.cpp

#include "Marlin.h"

#if ENABLED(USE_WATCHDOG)

#include "watchdog.h"

// Initialize watchdog with a 4 sec interrupt time
void watchdog_init() {
  #if ENABLED(WATCHDOG_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_4S;
  #else
    wdt_enable(WDTO_4S);
  #endif
}

//===========================================================================
//=================================== ISR ===================================
//===========================================================================

// Watchdog timer interrupt, called if main program blocks >1sec and manual reset is enabled.
#if ENABLED(WATCHDOG_RESET_MANUAL)
  ISR(WDT_vect) {
    SERIAL_ERROR_START;
    SERIAL_ERRORLNPGM("Something is wrong, please turn off the printer.");
    kill(PSTR("ERR:Please Reset")); //kill blocks //16 characters so it fits on a 16x2 display
    while (1); //wait for user or serial reset
  }
#endif //WATCHDOG_RESET_MANUAL

#endif //USE_WATCHDOG
First cleanup. Moved all code to cpp files, so there are no dependencies on pde files. And no more odd requirement to cat files together. (Still need to fix the Makefile). Also cleaned up some defines and made defines upper case as by C coding conventions. 2012-11-06 05:06:41 -06:00			`#include "Marlin.h"`

Overridable Options - Part 5 Apply `ENABLED` / `DISABLED` macros to files needing only a small number of changes. 2015-07-31 00:21:18 -05:00			`#if ENABLED(USE_WATCHDOG)`
Better explain the watchdog "problem" and rename the config define so it explains that the feature belongs to the watchdog. 2012-11-06 06:33:00 -06:00
First cleanup. Moved all code to cpp files, so there are no dependencies on pde files. And no more odd requirement to cat files together. (Still need to fix the Makefile). Also cleaned up some defines and made defines upper case as by C coding conventions. 2012-11-06 05:06:41 -06:00			`#include "watchdog.h"`

Clean up watchdog impl. 2015-10-13 05:57:36 -05:00			`// Initialize watchdog with a 4 sec interrupt time`
Styling adjustments (PR#2668 & PR#2670) Keep "astyled" reformatting 2015-10-03 01:08:58 -05:00			`void watchdog_init() {`
Overridable Options - Part 5 Apply `ENABLED` / `DISABLED` macros to files needing only a small number of changes. 2015-07-31 00:21:18 -05:00			`#if ENABLED(WATCHDOG_RESET_MANUAL)`
Clean up watchdog impl. 2015-10-13 05:57:36 -05:00			`// 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.`
First cleanup. Moved all code to cpp files, so there are no dependencies on pde files. And no more odd requirement to cat files together. (Still need to fix the Makefile). Also cleaned up some defines and made defines upper case as by C coding conventions. 2012-11-06 05:06:41 -06:00			`wdt_reset();`
			`_WD_CONTROL_REG = _BV(_WD_CHANGE_BIT) \| _BV(WDE);`
Set the watchdog to a 4 second timeout, as with 1 second it can timeout during SD card init. 2012-11-07 05:32:17 -06:00			`_WD_CONTROL_REG = _BV(WDIE) \| WDTO_4S;`
Overridable Options - Part 5 Apply `ENABLED` / `DISABLED` macros to files needing only a small number of changes. 2015-07-31 00:21:18 -05:00			`#else`
Set the watchdog to a 4 second timeout, as with 1 second it can timeout during SD card init. 2012-11-07 05:32:17 -06:00			`wdt_enable(WDTO_4S);`
Overridable Options - Part 5 Apply `ENABLED` / `DISABLED` macros to files needing only a small number of changes. 2015-07-31 00:21:18 -05:00			`#endif`
First cleanup. Moved all code to cpp files, so there are no dependencies on pde files. And no more odd requirement to cat files together. (Still need to fix the Makefile). Also cleaned up some defines and made defines upper case as by C coding conventions. 2012-11-06 05:06:41 -06:00			`}`

			`//===========================================================================`
Make EEPROM reproducible in GCode With these changes the output of `M503 S0` is all you need to restore the EEPROM. Building on this it is straightforward to save and restore the EEPROM state using the SD card or external GCode file. - Added `M145` to set “heatup states” for the LCD menu - Added `M420` to toggle Mesh Bed Leveling - Added `M421` to set a single Mesh coordinate - Extended `Config_PrintSettings` with added M codes - Cleaned up some comments here and there 2015-04-26 20:44:01 -05:00			`//=================================== ISR ===================================`
First cleanup. Moved all code to cpp files, so there are no dependencies on pde files. And no more odd requirement to cat files together. (Still need to fix the Makefile). Also cleaned up some defines and made defines upper case as by C coding conventions. 2012-11-06 05:06:41 -06:00			`//===========================================================================`

Clean up watchdog impl. 2015-10-13 05:57:36 -05:00			`// Watchdog timer interrupt, called if main program blocks >1sec and manual reset is enabled.`
Overridable Options - Part 5 Apply `ENABLED` / `DISABLED` macros to files needing only a small number of changes. 2015-07-31 00:21:18 -05:00			`#if ENABLED(WATCHDOG_RESET_MANUAL)`
Clean up watchdog impl. 2015-10-13 05:57:36 -05:00			`ISR(WDT_vect) {`
			`SERIAL_ERROR_START;`
			`SERIAL_ERRORLNPGM("Something is wrong, please turn off the printer.");`
			`kill(PSTR("ERR:Please Reset")); //kill blocks //16 characters so it fits on a 16x2 display`
			`while (1); //wait for user or serial reset`
			`}`
			`#endif //WATCHDOG_RESET_MANUAL`

			`#endif //USE_WATCHDOG`