timer 4

[Jim giordano]

I was using timer2 with the following code-

On interrupt Timer2Match call showtimex
Inittimer2 6, 2
StartTimer 2

and everything works perfectly. I wanted to change to timer4 so I changed the code to

On interrupt Timer4Match call showtimex
Inittimer4 6, 2 
StartTimer 4

but it never triggers the interrupt. Is there something special you need to do for timer4?

I tried on both a 16F1938 and 16F18856 with the same results.

GCB version:
;Program compiled by Great Cow BASIC (0.98.06 2019-06-12 (Windows 32 bit))

[Anobium]

My guess... you have optimsed the code and not enabled those timers.

#option Explicit
#chip 16F18856, 32

On interrupt Timer4Match call showtimex
Inittimer4 6, 2
StartTimer 4

sub showtimex
end sub


'Optimise code
    #define USE_Timer0 false
    #define USE_Timer1 false
    #define USE_Timer2 true
    #define USE_Timer3 false
    #define USE_Timer4 true
    #define USE_Timer5 false
    #define USE_Timer6 false

Seems to work in the simulator.

[Jim giordano]

Duh.

I was definately doing too many things at the same time yesterday.

I haven't said it enough, but

THANK YOU EVAN,

for all your patience and expertise.

[Anobium]

I got my crystal ball out and guessed what you did... from another unrelated post!

[Anobium]

@Jim. I was making a joke! :-)

[Jim giordano]

?? Everything you said seemed okay to me. You were the one that told me about the "use_timerx false", I just forgot it was there at the end!