I don't see a clrwdt command anywhere. Make sure the watchdog timer is
disabled in the FUSE settings of the PIC, or add a few CLRWDT instructions
withing the loops.

Without these, the PIC with periodically reset, causing symptoms that you
describe.

And by the way, comment your own code as you see fit and in your own style.
Comments are a personal thing and do not fit in with any rules.


Regards
Les

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