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@@ -38,11 +38,16 @@ void watchdog_init() {
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// Take care, as this requires the correct order of operation, with interrupts disabled.
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// See the datasheet of any AVR chip for details.
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wdt_reset();
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+ cli();
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_WD_CONTROL_REG = _BV(_WD_CHANGE_BIT) | _BV(WDE);
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- _WD_CONTROL_REG = _BV(WDIE) | WDTO_NS;
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+ _WD_CONTROL_REG = _BV(WDIE) | (WDTO_NS & 0x07) | ((WDTO_NS & 0x08) << 2); // WDTO_NS directly does not work. bit 0-2 are consecutive in the register but the highest value bit is at bit 5
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+ // So worked for up to WDTO_2S
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+ sei();
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+ wdt_reset();
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#else
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- wdt_enable(WDTO_NS);
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+ wdt_enable(WDTO_NS); // The function handles the upper bit correct.
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#endif
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+ //delay(10000); // test it!
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}
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//===========================================================================
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@@ -52,9 +57,10 @@ void watchdog_init() {
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// Watchdog timer interrupt, called if main program blocks >4sec and manual reset is enabled.
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#if ENABLED(WATCHDOG_RESET_MANUAL)
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ISR(WDT_vect) {
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+ sei(); // With the interrupt driven serial we need to allow interrupts.
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SERIAL_ERROR_START();
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- SERIAL_ERRORLNPGM("Something is wrong, please turn off the printer.");
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- kill(PSTR("ERR:Please Reset")); //kill blocks //16 characters so it fits on a 16x2 display
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+ SERIAL_ERRORLNPGM("Watchdog barked, please turn off the printer.");
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+ kill(PSTR("ERR:Watchdog")); //kill blocks //up to 16 characters so it fits on a 16x2 display
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while (1); //wait for user or serial reset
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}
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#endif // WATCHDOG_RESET_MANUAL
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