Re: TI-H: NEW expander design

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: NEW expander design
From: "ryan pogge" <ryanpogge@hotmail.com>
Date: Fri, 13 Feb 1998 10:11:39 PST
Reply-To: ti-hardware@lists.ticalc.org


the point is that an expander useing playstation carts would be cool,
and maybee even better than any other option. especialy if it has a port 
from which to plug in and remove individual carts.

>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.
>>
>>
>
>
>______________________________________________________
>Get Your Private, Free Email at http://www.hotmail.com
>


______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com