How to use an external oscillator

[skimask]

Hi Guys,

I want to use an external 20 Mhz oscillator for two 16F628A and one 40Mhz for one 18F1320.

But the only thing I find in the PBP in the defines about OSC is : "define_osc 20" for 20 Mhz.

How do I tell PBP that an external Osc is used? In ASM i can use the configuration word but what to do in PBP ?

Is it possible to use one external Osc for , say 4 Pics?

Help needed.

http://www.picbasic.co.uk/forum/show...nfig+registers

Also see...
http://www.picbasic.co.uk/forum/show...=multiple+pics