DT Ints work around for IOCA Register?

[kevlar129bp]

Hello all,

Thought I would start a new thread real quick, rather than this question getting buried in my Digitizing Arm post. I'm scribbling some code for the PIC16F688, and would love to use the DT Ints library. Will the library work on the IOCA Reg, or am I stuck with PBP interrupts? Can I change a few lines in DT_INTS-14.bas and make it work? Any help would be great.

Thanks guys,
Chris

[Bruce]

Don't have a 16F688 to test, but this works in MPSIM --

@ __config _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_OFF & _CP_OFF

DEFINE  OSC 4

OSCCON = %01100000 ' 4MHz internal
ANSEL = 0     ' Set portA outputs to Digital / No ADC
CMCON0  = 7   ' comparators disabled
PORTA = 0
TRISA = %00000001 ' RA0 input
OPTION_REG.7 = 0  ' pull-up global enable
WPUA = %00000001  ' pull-up enabled on RA0

include "DT_INTS-14.bas"
include "ReEnterPBP.bas"

ASM
INT_LIST  macro    ; IntSource,  Label,  Type, ResetFlag?
        INT_Handler   RAC_INT,  _MyInt,   PBP,  yes
    endm
    INT_CREATE           ; Creates the interrupt processor

    INT_ENABLE  RAC_INT  ; Enable RA change interrupt
ENDASM
 
 WHILE !PORTA.0   ' read for wake up om change
 WEND 
 IOCA.0=1         ' RA0 int-on-change enabled

Main:
  TOGGLE PORTA.2
  PAUSE 500
  GOTO Main

MyInt:
  WHILE !PORTA.0 
  WEND           ' wait for button release
  TOGGLE PORTA.1
  @ INT_RETURN

Just added these to DT_INTS-14 --

  #define RAC_INT   INTCON,RAIF     ;-- RA Port Change Interrupt

  ifdef RAIF    ;----{ RA Port Change Interrupt }--------------[INTCON, RAIF]---
      INT_Source  INTCON, RAIF, INTCON, RAIE
  endif

[kevlar129bp]

Thanks a ton Bruce. I'll give that a run. I just didn't want to really screw somethin' up!

Thanks again,
Chris