sorry, meant to say

In short, I wouldN'T overclock the pic, I would use the right tool for the
right job.  There are few things more painful to debug than an
intentionally bad design.

-Adam

"M. Adam Davis" wrote:
>
> Please check the archives about overclocking (http://www.piclist.com ).
>
> The gist of it is that some people (anecdotal evidence) have clocked 20MHz
> parts to 36MHz or more, but I've not heard one going that high.  I suspect
> that the pic cannot use a 50MHz crystal (due to drive circuitry
> limitations) in any case, and a 50MHz oscillator would have to be used, f
> it worked at all.
>
> If you need speed, look at the 18C devices, and look at the scenix
> devices.  The 18C is 4 times faster, but can only be run at 10MHZ or
> lower, the scenix (sorry, ubicom now...) goes to 50MHz and 100MHz parts
> are coming Real Soon Now(TM).
>
> By my calculations the 18C should be able to double your data rate
> (12k/s), and the scenix should be able to quintuple your data rate
> (30k/s).
>
> In short, I would overclock the pic, I would use the right tool for the
> right job.  There are few things more painful to debug than an
> intentionally bad design.
>
> -Adam
>
> Jeethu Rao wrote:
> >
> > Hi there guys,
> >
> > I am working on an implementation of the TEA Encryption algorithm for PIC. But, I read somewhere on the maximum speed possible on mid-range family PIC running @ 20 Mhz is just 6k/s.
> >
> > Now, can I overclock a 16f877 or 16f84A to say about 50 Mhz ?
> >
> > Will it just draw more power or will it have some more serious implications ?
> >
> > I'll bet atleast someone might have tried this.
> >
> > Jeethu Rao
> >
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>
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