32 lines
1.2 KiB
C
32 lines
1.2 KiB
C
/**
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* Marlin 3D Printer Firmware
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*
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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* SAMD51 HAL developed by Giuliano Zaro (AKA GMagician)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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// Initialize watchdog with a 4 second interrupt time
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void watchdog_init();
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// Reset watchdog. MUST be called at least every 4 seconds after the
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// first watchdog_init or SAMD will go into emergency procedures.
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inline void HAL_watchdog_refresh() {
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SYNC(WDT->SYNCBUSY.bit.CLEAR); // Test first if previous is 'ongoing' to save time waiting for command execution
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WDT->CLEAR.reg = WDT_CLEAR_CLEAR_KEY;
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}
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