Thanks for the quick reply.  I am thinking that is what I am going to
do...it is certainly the simplest method. Just plug it in, and enable the
PLL I just didn't have a 10mhz resonator in my parts box.

Thanks for the advice!

- Ted


-----Original Message-----
From: D. Jay Newman [mailto:jay@SPRUCEGROVE.COM]
Sent: Wednesday, April 30, 2003 2:27 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: 40mhz clock for PIC18FXX2...


> have a couple of 20mhz crystals laying around I could double....but,
keeping
> it simpler is sounding good to me.  I really don't need the whole
selectable
> clocking feature that using the PLL really buys.

Well, you could run it at 20MHz, or you could use the built-in PLL, like
I've always done. To use a crystal all you need are a couple of small
capacitors. I agree that a resonator is easier, and if you have some, use
them.

I've generally used a 10 MHz resonator with the built-in 4xPLL for 40 MHz.

Good luck!
--
D. Jay Newman          ! Pudge controls the weather.
jay@sprucegrove.com    !
http://enerd.ws/~jay/  ! Oh good. My dog found the chainsaw.

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body