Frank A. Vorstenbosch wrote:

> Mike Keitz wrote:
> >
> > On Mon, 25 May 1998 09:44:04 -0600 Matt Bonner <mbonner@SUNADA.COM>
> > writes:
> > >Tjaart van der Walt wrote:
> > >>  1.8432MHz
> > >   2.4576MHz ... Any more?
> > >>  3.6864MHz
> > >>  11.0592MHz
> > >
> > >> You can get all the standard baud rates with these crystals.
> >
> > There are two major 'series' of frequencies, with standard crystals
> > available at each power of 2 in the series:
> >
> > (9600 * 192): 1.8432, 3.6864, 7.3728, 14.7456 MHz
> > (9600 * 256): 2.4576, 4.9152, 9.8304, 19.6608 MHz
>
> Also, you can buy 3.579545MHz and 14.318MHz crystals -- these are based on the
> NTSC colour burst frequency, and due to their appearance in colour TVs
> (especially the former) they are very cheap.

True. If you calculate BRGH for 3.6864MHz for 2400 baud or 9600 baud,you can get away with the
3.579545MHz crystal if you can't get any 3.6's.

--
Friendly Regards

Tjaart van der Walt
mailto:tjaart@wasp.co.za

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