Oops: I meant to say that I could transition to TIMER1 osc mode while changing the input frequency. Bob Ammerman RAm Systems ----- Original Message ----- From: "Bob Ammerman" To: "pic microcontroller discussion list" Sent: Monday, August 18, 2003 9:53 PM Subject: [PIC:] PIC18Fxx20 - using HS + PLL with externally provided clock > Anybody know any reason I should not expect to be able to use a CMOS level > clock on OSC1 with HS + PLL mode? The gotcha is that the input clock > frequency will vary within the limits permitted for crystals in HS + PLL > mode. I can switch to internal RC when changing the incoming clock > frequency, which might help. > > Bob Ammerman > RAm Systems > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body