Alice,

when T1OSCEN  is enabled  in T1CON,3  portc,0 and portc,1 becomes
crystal inputs. caps you need to connect them in same way from each pin to
ground.
Yes I did it and I liked it very much. using 32.786khz crystal  timer1 I
configured to
generate 1 second interrupt that wakes the pic from sleep.

Andre Abelian


> really?   i mean, really really? have you done this?  how do
> you hook up the caps?
>
> alice
>
>
> > Bruce,
> >
> > instead of using external components most pics are designed to use 2
> > oscillators 32k for timer1
> > and up to 20mhz for the main one.Nice thing about this is that 32k OSC
will
> > work in sleep mode too.
> >
> > Andre Abelian
> >
> >
> > ----- Original Message -----
> > From: Bruce Cannon <brucecannon@HOME.COM>
> > To: <PICLIST@MITVMA.MIT.EDU>
> > Sent: Monday, September 25, 2000 4:43 PM
> > Subject: [EE]: multi-speed oscillator
> >
> >
> > > Hello!
> > >
> > > Any ideas on creating multiple operating frequencies to save power, as
you
> > > would with an RC osc, but with better frequency stability?  I'd love
to be
> > > able to go back and forth between 32k and 4MHz...
> > >
> > > Thanks,
> > >
> > > Bruce Cannon
> > > Style Management Systems
> > > http://siliconcrucible.com
> > > (510) 787-6870
> > > 1228 Ceres ST Crockett CA 94525
> > >
> > > Remember: electronics is changing your world...for good!
> > >
> > > --
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> > >
> > >
> >
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