On Tue, 15 Nov 1994, Bryan Crotaz wrote:

> I`ve had problems with crystals too.
> I didn`t need the reccommended 1M across the crystal, but I couldn`t work
> out for ages which of HS or XT to use.  I`m now using HS on a 16C84 with
> 4MHz Xtal.
> Cap to gnd from OSC1 and from OSC2 = 33pF
>

Thanks, I replaced the crystal and now the circuit works correctly with
the PIC set to the HS mode.

Scott