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MarlinFirmware/Marlin/watchdog.cpp

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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 11:06:41 +00:00
#include "Marlin.h"
Better explain the watchdog "problem" and rename the config define so it explains that the feature belongs to the watchdog.
2012-11-06 12:33:00 +00:00
#ifdef USE_WATCHDOG
#include <avr/wdt.h>
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 11:06:41 +00:00
#include "watchdog.h"
#include "ultralcd.h"
//===========================================================================
//=============================private variables ============================
//===========================================================================
//===========================================================================
//=============================functinos ============================
//===========================================================================
Set the watchdog to a 4 second timeout, as with 1 second it can timeout during SD card init.
2012-11-07 11:32:17 +00:00
/// intialise watch dog with a 4 sec interrupt time
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 11:06:41 +00:00
void watchdog_init()
{
Better explain the watchdog "problem" and rename the config define so it explains that the feature belongs to the watchdog.
2012-11-06 12:33:00 +00:00
#ifdef WATCHDOG_RESET_MANUAL
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 11:06:41 +00:00
//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.
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 11:32:17 +00:00
_WD_CONTROL_REG = _BV(WDIE) | WDTO_4S;
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 11:06:41 +00:00
#else
Set the watchdog to a 4 second timeout, as with 1 second it can timeout during SD card init.
2012-11-07 11:32:17 +00:00
wdt_enable(WDTO_4S);
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 11:06:41 +00:00
#endif
}
/// reset watchdog. MUST be called every 1s after init or avr will reset.
void watchdog_reset()
{
Better explain the watchdog "problem" and rename the config define so it explains that the feature belongs to the watchdog.
2012-11-06 12:33:00 +00:00
wdt_reset();
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 11:06:41 +00:00
}
//===========================================================================
//=============================ISR ============================
//===========================================================================
//Watchdog timer interrupt, called if main program blocks >1sec and manual reset is enabled.
Better explain the watchdog "problem" and rename the config define so it explains that the feature belongs to the watchdog.
2012-11-06 12:33:00 +00:00
#ifdef WATCHDOG_RESET_MANUAL
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 11:06:41 +00:00
ISR(WDT_vect)
Better explain the watchdog "problem" and rename the config define so it explains that the feature belongs to the watchdog.
2012-11-06 12:33:00 +00:00
{
//TODO: This message gets overwritten by the kill() call
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 11:06:41 +00:00
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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