Hello Steve,


Steve>>you was right. i just buy a load of these F819 to test your solution and the problem is really caused by OSCCON value unset at the program begining. PBP will assume OSCCON as 0 wich is mean 31.25Khz in datasheet.<<

I have a couple of these chips....I remembered programming one of them with a working "Blinky" binary count... And I waited...And I waited... And I almost gave up... I turned around, and out of the corner of my eye I saw a "Blink". I then started playing with my program and found the speed to be crawling. Scoped it, and my scope went to sleep waiting <g>

Then I went to the Data sheet and played with the OSC to fix it all up <g>.

Yeah, the chip was running... but I was turning gray waiting for it to do my job. <chuckle>

Dwayne