As I said in other posts I got it to work by powering down the chip and powering it backup. Works good. I found that if you use other xtals/resonators you can over clock the chip as well. I have got it to run at 60Mhz. ----- Original Message ----- From: "Harold M Hallikainen" To: Sent: Monday, August 05, 2002 11:52 AM Subject: Re: [PIC]:Has any one ever got a PIC 18F244 chip to work at 40mhz > On Sat, 3 Aug 2002 14:44:19 -0400 Michael Simpson > writes: > > Done that, did that. I have about 100 crystal,cap and resonators. > > I tried > > using the HS/PLL option. Cant get it to go above 20mhz. > > You tried a 10 MHz crystal and HSPLL? That should give you 40 MHz clock > (or one instruction every 100ns). I've now built over a thousand boards > with 18C452 and 18F452 with 10 MHz resonators with internal capacitors. > No problems... > > Harold > > > FCC Rules Online at http://hallikainen.com/FccRules > Lighting control for theatre and television at http://www.dovesystems.com > > Reach broadcasters, engineers, manufacturers, compliance labs, and > attorneys. > Advertise at http://www.hallikainen.com/FccRules/ . > > > ________________________________________________________________ > GET INTERNET ACCESS FROM JUNO! > Juno offers FREE or PREMIUM Internet access for less! > Join Juno today! For your FREE software, visit: > http://dl.www.juno.com/get/web/. > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > > -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads