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Problem with interrupts of PIC16LF1936

 
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Jovipe



Joined: 18 May 2010
Posts: 1

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Problem with interrupts of PIC16LF1936
PostPosted: Tue May 18, 2010 5:09 am     Reply with quote
Hi:

I have this simple code to generate an interrupt of the PIN_B4 when his value is low:
Code:

void main() {

   set_tris_C(0x00);
   setup_timer_1(T1_INTERNAL|T1_DIV_BY_8);
   clear_interrupt(INT_RB);
   IOCBN=0x10; //enables negative edge interrupt on B4
   IOCBP=0; //Disable all positive edge interrupts
   IOCBF=0;
   enable_interrupts(INT_RB);
   enable_interrupts(GLOBAL);
   set_tris_B(0x10);
   set_timer1(cycle_time);
  TMR1IF = 1;
   while(1){

     if ( TMR1IF)
    {     
          TMR1IF = 0;
     }
}

#int_rb
void changed(void) {
   if (IOCBF & (0x10)) {
   output_toggle(PIN_RC6);
   }
   IOCBF=0;
}

However, pin_RB4 doesn't interrupt. I have problems with " enable_interrupts(GLOBAL);" function because neither of my inputs work well (when I don't use this function my imputs work well but PIN_RB4 doesn't interrupt). I have replaced this function for using bit GIE but it doesn't interrupt.

What have I do wrong?

Thank you

PD: I have tried to interrupt the timer 1 and I can't do it, either.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue May 18, 2010 1:32 pm     Reply with quote
Post your compiler version. This is a new series of PICs for CCS and
we (forum members) know there have been bugs about it in recent
versions. I'll compare the .LST file code in your version to the latest
version.
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