int.c

PICOS18 V2.10 基于PIC18的实时操作系统

/**********************************************************************/
/*                                                                    */
/* File name: int.c                                                   */
/*                                                                    */
/* Since:     2004-Sept-20                                            */
/*                                                                    */
/* Version:   PICos18 v2.10                                           */
/*            Copyright (C) 2003, 2004, 2005 Pragmatec.               */
/*                                                                    */
/* Author:    Designed by Pragmatec S.A.R.L.        www.pragmatec.net */
/*            MONTAGNE Xavier [XM]      [e-mail] */
/*                                                                    */
/* Purpose:   Interrupt vector location.                              */
/*                                                                    */
/* Distribution: This file is part of PICos18.                        */
/*            PICos18 is free software; you can redistribute it       */
/*            and/or modify it under the terms of the GNU General     */
/*            Public License as published by the Free Software        */
/*            Foundation; either version 2, or (at your option)       */
/*            any later version.                                      */
/*                                                                    */
/*            PICos18 is distributed in the hope that it will be      */
/*            useful, but WITHOUT ANY WARRANTY; without even the      */
/*            implied warranty of MERCHANTABILITY or FITNESS FOR A    */
/*            PARTICULAR PURPOSE.  See the GNU General Public         */
/*            License for more details.                               */
/*                                                                    */
/*            You should have received a copy of the GNU General      */
/*            Public License along with gpsim; see the file           */
/*            COPYING.txt. If not, write to the Free Software         */
/*            Foundation, 59 Temple Place - Suite 330,                */
/*            Boston, MA 02111-1307, USA.                             */
/*                                                                    */
/*          > A special exception to the GPL can be applied should    */
/*            you wish to distribute a combined work that includes    */
/*            PICos18, without being obliged to provide the source    */
/*            code for any proprietary components.                    */
/*                                                                    */
/* History:                                                           */
/* 2004/12/01 [XM]  Create this file.                                 */
/* 2005/10/29 [XM]  Removed the "save" statement for InterruptL.      */
/*                  Added "nosave" statement for InterruptH.          */
/*                                                                    */
/**********************************************************************/

#include "define.h"

/**********************************************************************
 * Function you want to call when an IT occurs.
 **********************************************************************/
  extern void AddOneTick(void);
/*extern void MyOwnISR(void); */
  void InterruptVectorL(void);
  void InterruptVectorH(void);

/**********************************************************************
 * General interrupt vector. Do not modify.
 **********************************************************************/
#pragma code IT_vector_low=0x18
void Interrupt_low_vec(void)
{
   _asm goto InterruptVectorL  _endasm
}
#pragma code

#pragma code IT_vector_high=0x08
void Interrupt_high_vec(void)
{
   _asm goto InterruptVectorH  _endasm
}
#pragma code

/**********************************************************************
 * General ISR router. Complete the function core with the if or switch
 * case you need to jump to the function dedicated to the occuring IT.
 * .tmpdata and MATH_DATA are saved automaticaly with C18 v3.
 **********************************************************************/
#pragma	code _INTERRUPT_VECTORL = 0x003000
#pragma interruptlow InterruptVectorL 
void InterruptVectorL(void)
{
  EnterISR();

  if (INTCONbits.TMR0IF == 1)
    AddOneTick();
/*Here is the next interrupts you want to manage */
/*if (INTCONbits.RBIF == 1)                      */
/*  MyOwnISR();                                  */

  LeaveISR();
}
#pragma	code

/* BE CARREFULL : ONLY BSR, WREG AND STATUS REGISTERS ARE SAVED  */
/* DO NOT CALL ANY FUNCTION AND USE PLEASE VERY SIMPLE CODE LIKE */
/* VARIABLE OR FLAG SETTINGS. CHECK THE ASM CODE PRODUCED BY C18 */
/* IN THE LST FILE.                                              */
#pragma	code _INTERRUPT_VECTORH = 0x003300
#pragma interrupt InterruptVectorH nosave=FSR0, TBLPTRL, TBLPTRH, TBLPTRU, TABLAT, PCLATH, PCLATU, PROD, section(".tmpdata"), section("MATH_DATA")
void InterruptVectorH(void)
{
  if (INTCONbits.INT0IF == 1)
    INTCONbits.INT0IF = 0;
}
#pragma	code



extern void _startup (void);
#pragma code _RESET_INTERRUPT_VECTOR = 0x003400
void _reset (void)
{
    _asm goto _startup _endasm
}
#pragma code


/* End of file : int.c */