Re: TI-H: Turbo 85, and ULTRA TURBO

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: Turbo 85, and ULTRA TURBO
From: Ritchie Argue <ciphyr@usa.net>
Date: Sat, 7 Mar 1998 17:18:58 -0800
In-Reply-To: <5818d840.3500b808@aol.com>
Reply-To: ti-hardware@lists.ticalc.org


>In a message dated 98-03-06 21:54:45 EST, you write:
>
><<  I'm wondering if
> the LCD has a similar RC circuit! This may be why the horizontal lines
> appear on some TI-85s and why the TI-82/83 and the 92 (maybe) can't have
> lower capacitor values. The calculator still runs. I know! I tried it.
> The screen messes up, but you can still see that it's working. If you
> could increase the frequency of the LCD, then clock the processor even
> higher. Imagine how fast you could run the TI-92!!! 16 bits at nearly 20
> MHz already turboed. drop that capacitor down to 1pf and increase the
> LCD so it doesn't fall out of sync, who knows!!! >>
>The LCD also dose the same thing if you slow it down I have not been able to
>fix it also don't ask me why I wanted to slow it down I just did!

you will eventually run into propagation errors inside the CPU if you
accelerate it too much.  You may be able to squeeze a couple more mHz out
of a calc, but it's probably not worth it.

00000011

References:

Re: TI-H: Turbo 85, and ULTRA TURBO

From: Ski4fun104 <Ski4fun104@aol.com>