Problem with RAC_INT

[Dick Ivers]

Thanks Bruce, your suggestion worked. Setting IOCA.4 = 1 enabled the change on porta interrupt to function properly. I have a switch on porta pin 4. The interrupt works for both on-switching and off-switching.

Of course, each time the interrupt is used 2 seconds is added to the clocked time because of the delay inside the handler. In the real program I don't want this happening. This interrupt will only be used once. After it occurs this interrrupt can be disabled. I then want to jump to another program loop. I'll try some experiments to see if this can be done ...

[Bruce]

Hi Dick,

If the user will not be pressing & holding the switch, then read the port pin after the 2 sec
pause.

Otherwise you need to wait for the pin to return to the non-button-pressed state or it just
interrupts again after the port read & switch release.

If it's a one-shot deal, just disable it by clearing IOCA.4.

[lugo.p]

I intend to use the IOC too, but i'm not sure if i need those:

DT_INTS-14 for F684.bas
ReEnterPBP.bas
Elapsed_INT_RI.bas


if so, where i find this .bas files?

[Dick Ivers]

Files attached. Rename without .txt to use.

[lugo.p]

Thanks Dick but i'm still having troubles with IOCA over 16f684.

Because i have not much experience with PicBasic, i have been reading about IOC but don't understad how to implement a basic interrupt on change