56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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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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/**
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* HAL for stm32duino.com based on Libmaple and compatible (STM32F1)
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*/
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#ifndef WATCHDOG_STM32F1_H
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#define WATCHDOG_STM32F1_H
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#include <libmaple/iwdg.h>
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#include "../../inc/MarlinConfig.h"
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/**
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* The watchdog clock is 40Khz. We need a 4 seconds interval, so use a /256 preescaler and
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* 625 reload value (counts down to 0)
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* use 1250 for 8 seconds
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*/
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#define STM32F1_WD_RELOAD 625
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// Arduino STM32F1 core now has watchdog support
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// Initialize watchdog with a 4 second countdown 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 STM32F1 will reset.
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inline void watchdog_reset() {
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#if PIN_EXISTS(LED)
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TOGGLE(LED_PIN); // heart beat indicator
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#endif
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iwdg_feed();
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}
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#endif // WATCHDOG_STM32F1_H
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