Instant Interrupts - Revisited

[mehmetOzdemir]

I'm working on a project using 18LF13K22. I need to use RAB Change Interrupt with DT Ints18. I made changes on DT_INTS-18.bas below but i couldn't succeed. Any suggestion?

#define RABC_INT  INTCON, RABIF   ;-- RAB Port Change

.........

ifdef RABIF
      INT_Source  INTCON,RABIF, INTCON, RABIE,INTCON2,RABIP
  endif

Thanks..

[LinkMTech]

I had to do the same thing with the PIC18F14K50.
Our entries look similar except your label is RABC_INT.

#define RAB_INT   INTCON, RABIF   ;-- RAB Port Change, Added 3/15/14 for PIC18F14K50

and

  ifdef RABIF    ;----{ RAB Port Change Interrupt }-----------[INTCON, RABIF]--- (Added 3/15/14 for PIC18F14K50
      INT_Source  INTCON,RABIF, INTCON,RABIE, INTCON2,RABIP 
  endif

Could it be you're not enabling it with:

INT_ENABLE  RABC_INT   ; Enable IOC

[LinkMTech]

Edit: ooops, forgot the "@".

@ INT_ENABLE  RABC_INT   ; Enable IOC

[mehmetOzdemir]

I had to do the same thing with the PIC18F14K50.
Our entries look similar except your label is RABC_INT.

#define RAB_INT   INTCON, RABIF   ;-- RAB Port Change, Added 3/15/14 for PIC18F14K50

and

  ifdef RABIF    ;----{ RAB Port Change Interrupt }-----------[INTCON, RABIF]--- (Added 3/15/14 for PIC18F14K50
      INT_Source  INTCON,RABIF, INTCON,RABIE, INTCON2,RABIP 
  endif

Could it be you're not enabling it with:

INT_ENABLE  RABC_INT   ; Enable IOC

Thanks for your reply. I tried to work it with ISIS. It may cause for it. I'm waiting for chips. I will try it again.

[mehmetOzdemir]

The chips have arrived. I tried RAB change interrupt on a demo board. The situation is the same with isis. This is my test code below.

    INCLUDE "DT_INTS-18.bas"     ' Base Interrupt System
    INCLUDE "ReEnterPBP-18.bas"     ' Include if using PBP interrupts
    
    ........

    OSCCON  = %00110100
    OSCCON2 = 0
    OSCTUNE = %10000000
    
    TRISA   = %11101111
    TRISB   = %11111111
    TRISC   = %00000000

    ANSEL   = 0
    ANSELH  = 0
    
    INTCON2.7   = 0
    WPUA        = %00101111
    WPUB        = %11110000
    IOCA        = %00000111
    IOCB        = %01010000

    ASM
INT_LIST  macro    ; IntSource,      Label,  Type, ResetFlag?
                    INT_Handler   RABC_INT,  _RABC,   PBP,  yes
    endm
    INT_CREATE               ; Creates the interrupt processor
    INT_ENABLE  RABC_INT
    ENDASM

    MAIN:

   
    ......
GOTO MAIN


     RABC : 
    
    COUNTER = COUNTER + 1
    
    
@ INT_RETURN

[LinkMTech]

I tried your INT code mod and sample code here (added Counter VAR Word) and it compiled okay.
A couple questions:
What are you try to do that is not happening?
And excuse my ignorance, but what is ISIS?

[richard]

but what is ISIS?

looks like an Egyptian goddess

https://en.wikipedia.org/wiki/Isis

but it probably this
http:/'s/www.picmicros.org.uk/Interfacing/TUTORIAL.htm

[mehmetOzdemir]

I tried your INT code mod and sample code here (added Counter VAR Word) and it compiled okay.
A couple questions:
What are you try to do that is not happening?
And excuse my ignorance, but what is ISIS?

* There is no problem with compiling. It's okay.

* There are buttons tied PORTA.0, PORTA.1, PORTA.2 - PORTB.4 and PORTB.6. I want to get interrupt every logic change on this ports. If you look at IOCA and IOCB registers, these ports are enabled for interrupt.

* ISIS is a simulation program.

[richard]

DT_INTS does not clear the ioc int flag you need to do that yourself either in your isr or when you ready to rearm the interrupt

[richard]

I'm wrong there, I was thinking of ioca/b int issues I had some years back . but after having another look it was with a 16f1825 which has an individual ioc flag for every ioc pin , but it won't hurt to rule that out anyway

[mehmetOzdemir]

Hello everyone..

I read this post today. And added MOVF PORTA, W - MOVF PORTB, W. Now it's working as it should be.

RABC : 

@ MOVF PORTA, W
@ MOVF PORTB, W

    COUNTER = COUNTER + 1   
    
@ INT_RETURN

[LakisFM1]

Hello,
i have a working code which uses
CMP_INT and TMR1_INT.

I want when TMR1_INT event triggered ,
to change the period (or Frequency as entered) and reload the TMR1 with a new value.

Is this possible to put mutiple instances of e.g.

@Freq = 416 ; Frequency of Interrupts in Hz 416Hz

??

Thank you.

[richard]

Is this possible to put mutiple instances of e.g. @Freq = 416

"Freq " would be a label and cannot be redefined
you can however
@Freq1 = 416
@Freq2 = 410
@Freq3 = 466

if you need to change the tmr1 interrupt rate the tmr1 reload value needs to be a var