53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2020 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 <https://www.gnu.org/licenses/>.
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*
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*/
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#ifdef __IMXRT1062__
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/**
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* HAL Watchdog for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
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*/
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#include "../../inc/MarlinConfig.h"
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#if ENABLED(USE_WATCHDOG)
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#include "watchdog.h"
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#define WDT_TIMEOUT TERN(WATCHDOG_DURATION_8S, 8, 4) // 4 or 8 second timeout
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constexpr uint8_t timeoutval = (WDT_TIMEOUT - 0.5f) / 0.5f;
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void watchdog_init() {
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CCM_CCGR3 |= CCM_CCGR3_WDOG1(3); // enable WDOG1 clocks
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WDOG1_WMCR = 0; // disable power down PDE
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WDOG1_WCR |= WDOG_WCR_SRS | WDOG_WCR_WT(timeoutval);
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WDOG1_WCR |= WDOG_WCR_WDE | WDOG_WCR_WDT | WDOG_WCR_SRE;
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}
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void HAL_watchdog_refresh() {
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// Watchdog refresh sequence
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WDOG1_WSR = 0x5555;
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WDOG1_WSR = 0xAAAA;
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}
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#endif // USE_WATCHDOG
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#endif // __IMXRT1062__
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