PLL settings of 18F452

[theasus]

Hi, I want to run 18F452 at 40mhz. And I will use 10mhz external crystal by using Pll function. How can I do this?
Thanks.

[Ttelmah]

Always, always, always, _tell us your compiler version_...

There are various ways of doing this, on latter compilers.

Old version (should work pretty generically):

#fuses H4
#use delay(clock=40000000)

On newer compilers, you can use
#fuses H4
#use delay(clock=40M)

and on the latest compilers

#use delay(clock=40M, oscillator=10M)

which automatically selects H4 for you.
The old version should still be supported, and is 'safe' with just about any compiler.

Best Wishes