IIRC, tying MCLR to Vdd will not allow you to In Circuit Serial Program
and will not allow you to send a reset to the PIC. If you plan to only
program in an external  programmer, and your code will NEVER require a
hardware reset, tie it high, but that isn't what I'd do.
Rick

Pic Dude wrote:

> On a 16F872, and 16F84 for that matter, I've gathered that MCLR
> should be connected to Vdd during normal operation.  However,
> some circuits I run across show this going thru a 1K or other
> resistor.  Why is this?  (I expect that there is a good reason for
> adding another component).
>
> Cheers,
> -Neil.
>
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