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[136] | 1 | /*
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| 2 | Copyright (c) 2012 Arduino. All right reserved.
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| 3 |
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| 4 | This library is free software; you can redistribute it and/or
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| 5 | modify it under the terms of the GNU Lesser General Public
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| 6 | License as published by the Free Software Foundation; either
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| 7 | version 2.1 of the License, or (at your option) any later version.
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| 8 |
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| 9 | This library is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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| 12 | See the GNU Lesser General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU Lesser General Public
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| 15 | License along with this library; if not, write to the Free Software
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| 16 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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| 17 | */
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| 18 |
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| 19 | #include <Arduino.h>
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| 20 | #include "Reset.h"
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| 21 |
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| 22 | #ifdef __cplusplus
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| 23 | extern "C" {
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| 24 | #endif
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| 25 |
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| 26 | __attribute__ ((long_call, section (".ramfunc")))
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| 27 | static void banzai() {
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| 28 | // Disable all interrupts
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| 29 | __disable_irq();
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| 30 |
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| 31 | WDT->CONFIG.bit.PER = 0x0; //8 clock cycles period for WDT
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| 32 | WDT->CTRL.reg |= WDT_CTRL_ENABLE; //enable watchdog
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| 33 | while(1)
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| 34 | {
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| 35 | //wait for WDT
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| 36 | }
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| 37 | while (true);
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| 38 | }
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| 39 |
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| 40 | static int ticks = -1;
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| 41 |
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| 42 | void initiateReset(int _ticks) {
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| 43 | ticks = _ticks;
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| 44 | banzai();
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| 45 | }
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| 46 |
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| 47 | void cancelReset() {
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| 48 | ticks = -1;
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| 49 | }
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| 50 |
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| 51 | void tickReset() {
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| 52 | if (ticks == -1)
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| 53 | return;
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| 54 | ticks--;
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| 55 | if (ticks == 0)
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| 56 | banzai();
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| 57 | }
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| 58 |
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| 59 | #ifdef __cplusplus
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| 60 | }
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| 61 | #endif
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