8d9c3cc2b7
This is the ONLY way to be able to override ISRs stolen by the Arduino Runtime, such as Serial or USB device interrupts. This feature is needed so Arduino modules can be replaced and enhanced.
52 lines
1.8 KiB
C
52 lines
1.8 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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* InterruptVectors_Due.h
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*
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* Copyright (c) 2017 Eduardo José Tagle. All right reserved
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*
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* This module relocates the Interrupt vector table to SRAM, allowing new
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* interrupt handlers to be added at runtime. This is required because the
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* Arduino runtime steals interrupt handlers that Marlin MUST use to support
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* extended functionality such as USB hosts and USB devices (MSD, MTP) and
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* custom serial port handlers. Rather than modifying and/or recompiling the
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* Arduino runtime, We just want to run as much as possible on Stock Arduino.
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*
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* Copyright (c) 2017 Eduardo José Tagle. All right reserved
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*/
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#ifndef INTERRUPTVECTORS_DUE_H
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#define INTERRUPTVECTORS_DUE_H
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#include "../../inc/MarlinConfig.h"
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#ifdef ARDUINO_ARCH_SAM
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// ISR handler type
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typedef void (*pfnISR_Handler)(void);
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// Install a new interrupt vector handler for the given irq, returning the old one
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pfnISR_Handler install_isr(IRQn_Type irq, pfnISR_Handler newHandler);
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#endif // ARDUINO_ARCH_SAM
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#endif // INTERRUPTVECTORS_DUE_H
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