Pls How can I make 16F877A use 15MHz Xtal

[paul borgmeier]

Hi Ozzie,

Now that everything is fine, it is not. This time you need to check the datasheet. You will see that 24MHz is beyond the specified limit of DC-20MHz. You are "overclocking" the PIC and performance is not implied.


Hi Alain, you quoted skimask's reply from post#4 and then wrote this

geeeee !!! What a wonderful forum is has become these days ...

after all these years, I didn't know there was a DEFINE OSC 15 ...

12 or 16 only available ... too bad !!! ( Manual p. 170 ... )

for clarification, skimask did not suggest using DEFINE OSC 15, the OP did (post#3). Skimask hinted that the OP might want to check the manual (post#4).

in otherwords, skimask asked him to fish (post#4), I baited the hook (post#5), and you gave him a fish (post#13).

EDIT: and I had a little fun with the m M thing along the way (Trent also noted the 20MHz top limit above)