Instant Interrupts - Revisited

[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