The stack is corrupted (being a stack, the first address pushed will be
lost), and you will notice the affect on a return from call ... The PIC will
not return where you expect it, and will jump to another completely
incorrect point in code, with resulting unpredictable behaviour.

If you are having trouble finding the overflow (they can be hard to debug),
use MPLAB's simulator to help you monitor the stack.

Hope this helps.
Rgs
Ian.

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of TAN WH
Sent: Monday, 13 October 2003 10:40 am
To: PICLIST@MITVMA.MIT.EDU
Subject: [PIC]: Stack overflow


Hi, may someone please explain this to me.

I am suspecting that there is a stack overflow in my PIC16F877. So I would
like to know what will happen to a PIC when a stack overflow occur.

Thanks & regards.

WH Tan

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