// perform the counting functions for pin 12
void __ISR( _EXTERNAL_2_VECTOR , ipl2) INT2Interrupt( void) {
if (ExtCurrentConfig[12] == EXT_PER_IN) {
INT2Value = INT2Count;
INT2Count = 0;
} else INT2Count++;
mINT2ClearIntFlag(); // Clear the interrupt flag
return;
}
/* Specify interupt priority 1, but stop the interupt once detected */
void __ISR(_EXTERNAL_2_VECTOR, IPL1) _Int2Handler(void) {
uint state = getState();
if(STATE_BEGINING == state)
{
/* STEP 1. configure the Timer1*/
mT1ClearIntFlag();
OpenTimer1(T1_ON | T1_SOURCE_INT | T1_PS_1_1, 64000);
/* STEP 2. set the timer interrupt to prioirty level 2 */
ConfigIntTimer1(T1_INT_ON | T1_INT_PRIOR_2);
writeBit(1);
writeBit(1);
setState(STATE_FIRST_EDGE);
}
else if( STATE_FIRST_EDGE == state)
{
ConfigIntTimer1(T1_INT_OFF);
setEtu(ReadTimer1()/3);
OpenTimer1(T1_ON | T1_SOURCE_INT | T1_PS_1_1, getEtu()/5);
/* STEP 2. set the timer interrupt to prioirty level 2 */
ConfigIntTimer1(T1_INT_ON | T1_INT_PRIOR_2);
/*Stopping the timer 1 and reading the value*/
DisableINT2;
/*the two first bits of ts are sets*/
setState(STATE_TS);
bitIndex = 10 ;
}
else
{
/* state == normal processing or no atr but an etu value is set*/
DisableINT2;
OpenTimer1(T1_ON | T1_SOURCE_INT | T1_PS_1_1, getEtu());
ConfigIntTimer1(T1_INT_ON | T1_INT_PRIOR_2);
}
/* The flag is cleared at the end to avoid stack overflow
* PORTDbits.RD0 is the EXTERNAL_0_VECTOR*/
mINT2ClearIntFlag();
}
void __ISR(_EXTERNAL_2_VECTOR, ipl1) _Interrupt_XY_Limit(void)
{
unsigned int temp;
temp = mPORTCRead();
if(temp & xLimitInput.pin)
{
xLimitDetected = TRUE;
BSP_AxisDisable(X_AXIS);
//BSP_Timer2Stop();
}
if(temp & yLimitInput.pin)
{
yLimitDetected = TRUE;
BSP_AxisDisable(Y_AXIS);
//BSP_Timer2Stop();
}
/* Clear the interrupt flag */
mINT2ClearIntFlag();
}
