116 lines
3.2 KiB
C
116 lines
3.2 KiB
C
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// Copyright (C) 2010 Ubixum, Inc.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library 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 GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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/*! \file
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* Define the standard fx2 interrupts. For int2 and int4 autovector
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* interrupts see \ref autovector.h
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*
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* To enable an interrupt, simply define an interrupt handler function
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* and use the appropriate ENABLE_* macro. Interrupt enable macros
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* do not enable interrupts globally. Use EA=1 to enable interrupts.
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*
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* \code
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* void main() {
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* ENABLE_RESUME();
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* EA=1;
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* ...
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* }
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*
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* void handle_resume() interrupt RESUME_ISR {
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* CLEAR_RESUME();
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* }
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* \endcode
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*
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* */
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/**
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* \brief interrupt numbers for standard fx2 interrupts
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**/
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typedef enum {
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IE0_ISR = 0, ///< External interrupt 0
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TF0_ISR, ///< Timer 0 interrupt
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IE1_ISR, ///< External interrupt 1
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TF1_ISR, ///< Timer 1 interrupt
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TI_0_ISR, ///< Serial port 0 transmit or receive interrupt
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TF2_ISR, ///< Timer 2 interrupt
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RESUME_ISR, ///< Resume interrupt
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TI_1_ISR, ///< Serial port 1 transmit or receive interrupt
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USBINT_ISR, ///< Usb Interrupt. An interrupt handler for this should only be used if not using auto vectored interrupts with int2
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I2CINT_ISR, ///< I2C Bus interrupt
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IE4_ISR, ///< External interrupt 4. An interrupt handler for this should only be used if not using auto vectored interrupts with int4
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IE5_ISR, ///< External interrupt 5
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IE6_ISR, ///< External interrupt 6
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} FX2_ISR;
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/**
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* \brief Enable the timer 0 interrupt.
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*
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* There is not CLEAR_TIMER0 because the timer interrupt flag
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* is automatically cleared when the isr is called.
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**/
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#define ENABLE_TIMER0() ET0=1
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/**
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* \brief Enable timer 1 interrupt
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* There is no CLEAR_TIMER1 because the timer interrupt flag
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* is automatically cleared when the isr is called.
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**/
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#define ENABLE_TIMER1() ET1=1
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/**
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* \brief Enable timer 2 interrupt
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*
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* This is the same interrupt whether timer 2 overflowed or
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* for the external EXF2 flag.
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**/
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#define ENABLE_TIMER2() ET2=1
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/**
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* \brief Clear timer 2 interrupt
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*
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* Clears both the TF2 AND EXF2 flag
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**/
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#define CLEAR_TIMER2() TF2=0;EXF2=0;
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/**
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* \brief Enable the Resume Interrupt. Requires EA=1 separately.
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**/
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#define ENABLE_RESUME() ERESI = 1
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/**
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* \brief Clear the resume interrupt. Use within the resume
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* interrupt handler.
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**/
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#define CLEAR_RESUME() RESI=0
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#define ENABLE_INT4()
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/**
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* \brief
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* Enable external interupt for int5#
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**/
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#define ENABLE_INT5() EIEX5=1
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/**
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* \brief
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* Clear int5# interrupt
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**/
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#define CLEAR_INT5() EXIF &= ~0x80
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