OK, embarrassment time. This was the first time using an old power supply, and I forgot that the meter value reads half the output voltage. I was running the 12F629 at 10v not 5!!! Now, with it running at 5v it does exactly what I want it to do. Guess S/W is not always the culprit. Sorry for the time waster, but I am sure some will get a smile out of my stupidity!! Barry -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of William Chops Westfield Sent: January 10, 2005 20:23 To: Microcontroller discussion list - Public. Subject: Re: [PIC] newbie (very) help please Internal Oscillator 12f629 On Jan 10, 2005, at 2:37 PM, Barry wrote: > If I drop the "CONFIG INTRC_OSC_CLKOUT" statement in the code below > and use > a 4Mhz Xtal, the LED flashes. If I leave the statement in and remove > the > Xtal, no flashing LED, and no sign of the 4Mhz clock output > Does your programmer extract the config bits from the output of the compiler? That's doesn't always happen, IIRC... BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist