Could be many things... any code and schematic?
Did you tried disable the brown-out reset fuse?
Is MCLR attach to VCC
Any floating pins?
Too much nested gosubs?
Circuit on a solid PCB or on a proto-board?
Battery powered or bench psu?
Supply line clean and properly filtered (caps around and close to PIC (at least)?
Any possible messy or loose contacts crystal, supply rails, ... , ....?
...?
Last edited by mister_e; - 6th November 2005 at 18:27.
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
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