traps.c

本例程是描述了通过PIC33FXXX单片机的I2C接口实现对单片机外围EEPROM的访问

/**********************************************************************
* ADDITIONAL NOTES:
* 1. This file contains trap service routines (handlers) for hardware
*    exceptions generated by the dsPIC33F device.
* 2. All trap service routines in this file simply ensure that device
*    continuously executes code within the trap service routine. Users
*    may modify the basic framework provided here to suit to the needs
*    of their application.
**********************************************************************/
#if defined(__dsPIC33F__)
#include "p33fxxxx.h"
#elif defined(__PIC24H__)
#include "p24hxxxx.h"
#endif

void __attribute__((__interrupt__)) _OscillatorFail(void);
void __attribute__((__interrupt__)) _AddressError(void);
void __attribute__((__interrupt__)) _StackError(void);
void __attribute__((__interrupt__)) _MathError(void);
void __attribute__((__interrupt__)) _DMACError(void);

void __attribute__((__interrupt__)) _AltOscillatorFail(void);
void __attribute__((__interrupt__)) _AltAddressError(void);
void __attribute__((__interrupt__)) _AltStackError(void);
void __attribute__((__interrupt__)) _AltMathError(void);
void __attribute__((__interrupt__)) _AltDMACError(void);

/*
Primary Exception Vector handlers:
These routines are used if INTCON2bits.ALTIVT = 0.
All trap service routines in this file simply ensure that device
continuously executes code within the trap service routine. Users
may modify the basic framework provided here to suit to the needs
of their application.
*/
void __attribute__((interrupt, no_auto_psv)) _OscillatorFail(void)
{
        INTCON1bits.OSCFAIL = 0;        //Clear the trap flag
        while (1);
}

void __attribute__((interrupt, no_auto_psv)) _AddressError(void)
{
        INTCON1bits.ADDRERR = 0;        //Clear the trap flag
        while (1);
}
void __attribute__((interrupt, no_auto_psv)) _StackError(void)
{
        INTCON1bits.STKERR = 0;         //Clear the trap flag
        while (1);
}

void __attribute__((interrupt, no_auto_psv)) _MathError(void)
{
        INTCON1bits.MATHERR = 0;        //Clear the trap flag
        while (1);
}

void __attribute__((interrupt, no_auto_psv)) _DMACError(void)
{
        INTCON1bits.DMACERR = 0;        //Clear the trap flag
        while (1);
}

/*
Alternate Exception Vector handlers:
These routines are used if INTCON2bits.ALTIVT = 1.
All trap service routines in this file simply ensure that device
continuously executes code within the trap service routine. Users
may modify the basic framework provided here to suit to the needs
of their application.
*/

void __attribute__((interrupt, no_auto_psv)) _AltOscillatorFail(void)
{
        INTCON1bits.OSCFAIL = 0;
        while (1);
}

void __attribute__((interrupt, no_auto_psv)) _AltAddressError(void)
{
        INTCON1bits.ADDRERR = 0;
        while (1);
}

void __attribute__((interrupt, no_auto_psv)) _AltStackError(void)
{
        INTCON1bits.STKERR = 0;
        while (1);
}

void __attribute__((interrupt, no_auto_psv)) _AltMathError(void)
{
        INTCON1bits.MATHERR = 0;
        while (1);
}

void __attribute__((interrupt, no_auto_psv)) _AltDMACError(void)
{
        INTCON1bits.DMACERR = 0;        //Clear the trap flag
        while (1);
}