58 lines
1.7 KiB
C++
58 lines
1.7 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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#if defined(STM32GENERIC) && (defined(STM32F4) || defined(STM32F4xx))
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#include "../../inc/MarlinConfig.h"
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#if ENABLED(USE_WATCHDOG)
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#include "watchdog_STM32F4.h"
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IWDG_HandleTypeDef hiwdg;
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void watchdog_init() {
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hiwdg.Instance = IWDG;
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hiwdg.Init.Prescaler = IWDG_PRESCALER_32; //32kHz LSI clock and 32x prescalar = 1024Hz IWDG clock
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hiwdg.Init.Reload = 4095; //4095 counts = 4 seconds at 1024Hz
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if (HAL_IWDG_Init(&hiwdg) != HAL_OK) {
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//Error_Handler();
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}
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}
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void watchdog_reset() {
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/* Refresh IWDG: reload counter */
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if (HAL_IWDG_Refresh(&hiwdg) != HAL_OK) {
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/* Refresh Error */
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//Error_Handler();
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}
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else {
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#if PIN_EXISTS(LED)
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TOGGLE(LED_PIN); // heartbeat indicator
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#endif
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}
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}
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#endif // USE_WATCHDOG
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#endif // STM32F4 || STM32F4xx
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