Toggle program branch ussing interrupot by button?

[LinkMTech]

Sorry for the delay, but I don’t think that would be a good solution since the ISR should only spend enough time in there to update values, take readings, turn things ON/OFF, etc.. Pretty much just get in and get out.

Your example is like the one Henrik suggested but within the ISR.

But got another wild idea if your tight loop can sacrifice just a little time to test the ISR flag bit:

INT VAR BIT

INT = 0
'------------------------
    
loop1:
    code
    IF INT THEN GOTO loop2   ' Jump to loop2 after loop1 finished if interrupt triggered
GOTO loop1                                                  

loop2:
    more code
    IF !INT THEN GOTO loop1  ' Jump to loop1 after loop2 finished if interrupt triggered
GOTO loop2


; --------------  ISR toggles a flag bit ----------
Button_ISR:
    
    INT = !INT
    
@ INT_RETURN

This way, I'm thinking, any one of the loops can complete it's mission before jumping to the other routine should an interrupt happen. Or just continue in it's loop until the button is pushed.

[CuriousOne]

LOL, I already did in the same way, just it became necessary to rise clock frequency to 32mhz. But I don't use any interrupts, and it works just fine.

[LinkMTech]

Hehe, that is funny.
Glad you got it going.

[CuriousOne]

Yes, but I still want to get with interrupts, because I have more choices to do with button, and putting many IF THENs slows down code considerably (it should run with 100 microsecond accuracy).