Tandy Model I Problems

From: Ward Griffiths and/or Lisa Rogers <gram_at_cnct.com>
Date: Thu Aug 21 08:53:20 1997

On Wed, 20 Aug 1997, Richard Cini wrote:

> It seems like each CPU (a 4k and a 16k Level II) won't recognize =
> either EI (a Rev 0 and Rev 1). Both EI's have 32k of RAM. All that I get =
> on the screen is garbage. I'm turing the EI on first, then the CPU. I've =
> also tried two types of EI cables, one buffered and one not. I can tell =
> which cable goes to which EI because the floppy drive will initialize =
> only with the right combo.

You've already been given the message concerning the BREAK-RESET on
power-up. I thought I'd mention that that should work fine with the
16k CPU. The 4k CPU won't recognize the RAM in the EI - the self
test will notice that there's nothing past 4k and not look further.
You could write a program to _manually_ initialize the EI memory and
poke values into it, but BASIC can't see it. About all an EI gives
to a 4k CPU is a parallel port and an extra cassette port -- TRSDOS
(or any of the alternates) sure won't fit.
--
Ward Griffiths
"the timid die just like the daring; and if you don't take the plunge then 
you'll just take the fall"                                Michael Longcor
Received on Thu Aug 21 1997 - 08:53:20 BST

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