Thread: Problem with interrupts on the PIC
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Unread 15-12-2003, 10:39
Larry Barello Larry Barello is offline
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Re: Problem with interrupts on the PIC
Quote:
Originally Posted by Mike Betts
...
Larry,

In addition to my comment above, please be sure that you read section 2.9.2 in it's entirety. Specifically, I quote:

"If an interrupt service routine calls another function, the normal functions' temporary data section (which is named .tmpdata) should be saved using a save=section(".tmpdata") qualifier on the interrupt pragma command."

In your case, the pragma in User_Routines_Fast.c needs to be:

#pragma interruptlow InterruptHandlerLow save=section(".tmpdata")

I hope this fixes your glitching problem. It did for me...
I knew it was some sort of problem of crapping on another context. I missed the fact that any routine that is called by a handler needs to save additional information. IFI should have a sample of something called by a handler so folks know what is needed.

Thanks!