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Clean up watchdog impl.

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This commit is contained in:
Scott Lahteine
2015-10-13 03:57:36 -07:00
committed by Richard Wackerbarth
parent 8f16563bbd
commit b4af4441c5
4 changed files with 37 additions and 44 deletions
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40
Marlin/watchdog.cpp
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@ -1,25 +1,14 @@
#include "Marlin.h"
#if ENABLED(USE_WATCHDOG)
#include <avr/wdt.h>
#include "watchdog.h"
#include "ultralcd.h"
//===========================================================================
//============================ private variables ============================
//===========================================================================
//===========================================================================
//================================ functions ================================
//===========================================================================
/// intialise watch dog with a 4 sec interrupt time
// 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.
// 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;
@ -28,23 +17,18 @@ void watchdog_init() {
#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.
// 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//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
#endif //USE_WATCHDOG