That power reset after programming the PLL bit me a couple of times here. Note to anyone using the ICD2 - be sure to power off your target circuit AND pull the RJ-45 connector from the target circuit after programming the PLL. The ICD2 will still provide power to the chip after your target power is removed. I have been using resonators without external caps. I'm running a 10 MHz crystal on an 18F452 with 22pf caps. The chip won't run without them. Maybe there is enough stray capacitance on the breadboard to get your clock running? Jim -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Michael Simpson Sent: Sunday, August 04, 2002 1:13 AM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [PIC]:Has any one ever got a PIC 18F244 chip to work at 40mhz OK I got this baby to run at 40MHZ. Once you program with HS-PLL option you must shutdown the PIC (Reset wont do it) This allows the PLL to start up. Some other observations. When using crystals and resonators with PLL option the caps don't seem to make a difference. In the 18FXX2 manual fig 2.6 does not show the use of caps. Any one know any thing about this. ----- Original Message ----- From: "Michael Simpson" To: Sent: Sunday, August 04, 2002 2:11 AM Subject: Re: [PIC]:Has any one ever got a PIC 18F244 chip to work at 40mhz -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu