OK, I've read the datasheet but I'm still confused.

I have someone elses pre-made project that I'm altering. It already runs from asm with a 16F818 but I wanted to add big characters for the LCD.

The project uses non standard pins for the LCD so I'm using LCD_AnyPin.pbp and it uses an external 10Mhz oscillator as clock in.


I have a small test board running the code I want successfully using the odd pins, but a standard crystal 10Mhz oscillator as DEFINE OSC 10.

I read the datasheet as EICON for the external oscillator option but I have no idea how to set it ?

I tried DEFINE EXT_OSC 10 and selecting EXTCLOCK on the programmer but although I get two lines showing (Contrast up) there is no data.

I also tried 'clkin VAR portA.7' with no success.

Anyone point me in the right direction?

As I say the code works with Xtal osc but not external clock so seems no point posting the code.