Hello,

    Sorry for reposting. Wrong tag on the subject.

    I'm trying to use #INT_GLOBAL on CCS-PICC, but no sucess.

    My interrupt routine is working well with #INT_DEFAULT, but I want it to
be faster. #INT_DEFAULT is using aprox 46 instructions for going in and out
of the interrupt. I thought I could make it faster by usint #INT_GLOBAL and
doing my own interrupt registers saving and restoring.

    Right now, my ISR looks like:

// ***************************
// INTERRUPT ROUTINE
//****************************
#INT_GLOBAL
void interrupt(void)
{
 static byte w_save;
 static byte status_save;
 static byte pclath_save;

 // save registers
 MOVWF w_save
 SWAPF STATUS,W
 BCF   STATUS,RP0
 BCF   STATUS,RP1
 MOVWF status_save
 MOVF  PCLATH,W
 MOVWF pclath_save
 CLRF  PCLATH
 #endasm

 if (INTCON.T0IF) {
  INTCON.T0IF = 0;
  // Doing that thing you do...
 }

 #asm
 // restore registers
 BCF   STATUS,RP0
 BCF   STATUS,RP1
 MOVF  pclath_save,W
 MOVWF PCLATH
 SWAPF status_save,W
 MOVWF STATUS
 SWAPF w_save,F
 SWAPF w_save,W
 #endasm
}

    But the PIC (16F628) is hanging.

    Someone can help me? Pleeassseeee!

    Thank you,

    Brusque

-----------------------------------
Edson Brusque
Research and Development
C.I.Tronics Lighting Designers Ltda
(47) 323-2138  /  (47) 9993-6453
Blumenau  -  SC  -  Brazil
www.citronics.com.br
-----------------------------------

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