Re: TI-H: NEW expander design

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: NEW expander design
From: "Richard Piotter" <richfiles1@hotmail.com>
Date: Fri, 13 Feb 1998 08:12:59 PST
Reply-To: ti-hardware@lists.ticalc.org


What's the point? The hardware only needs fine tuning. The TI-82 is the 
problem!!! I heard that the current shell doesn't have very godd support 
for something and it makes accurate drivers difficult. The hardware 
doesn't need to be re invented. It's the driver that's taking so long. 
If you want to, go ahead and make the driver. It would be interesting to 
see it made, but if it's time you're worring about, then it would be a 
waste of it to spend time o on a driver for something new, when one is 
being worked on now.

>
>
>I was getting a bit tired of waiting for expanders to finally get 
working for 
>my 82 (no offense to anyone)  and so I looked around on the net for 
chips and 
>such to use as an expander.  I think I have found a solution.  I found 
a paper 
>describing the communication protocol and storage format for a 
Playstation 
>memory card.  It uses a 3 pin interface, however I have designed an 
adapter 
>that will convert it to two pins.  I just need help in writing a driver 
>because I am not good a ASM programming.  I can try to whip up a 
circuit 
>schematic in the next few days along with the protocol and storage 
format.  I 
>am just looking for help on how to write a good driver program I 
already have 
>a good idea in my mind what it needs to do.  Thank you all for your 
time.
>
>


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Follow-Ups:

Re: TI-H: NEW expander design

From: nzoschke@juno.com (Noah S Zoschke)