drive it low
if its jumpered it wont matter
if its unjumpered then enable wpu and check


> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf
> Of Chris Emerson
> Sent: Friday, May 27, 2005 20:50
> To: Microcontroller discussion list - Public.
> Subject: Re: [PIC] Best Pic for the job
> 
> 
> On Fri, May 27, 2005 at 11:45:26AM +0100, Alan B. Pearce wrote:
> > >> >Internal pullup and jumpers to gnd.
> > >> 
> > >> However this technique does not usually result in a "low 
> > >> power processor because of the way the internal pullups
> > >> work.
> > >
> > >Only turn on wpu while checking the pin ?
> > 
> > Yeah, someone else pointed that out too.
> 
> But then don't you have a floating input if the jumper's not in place?
> That'll probably eat up more current than the weak pullup.
> 
> Chris
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