[Coco] TRS-80 X-Pad

[Bruce W. Calkins]

The X-Pad requires 12 volts which is not available from a CoCo 2 or 3.  This 
can come from a Multi-Pak, so you might be able to figure out something for 
the CoCo 3 and OS-9 Level 2.  There was also a problem with a weak chip, but 
I don't have the details handy at the moment.  I've got two in storage and 
would love to see something to use them with.  Aside from that I can't help 
much.

Bruce W.

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----- Original Message ----- 
From: "Bill Pierce"

>
> Hi,
> I've recently aquired a TRS-80 X-Pad for the Coco. These were made back in 
> the Coco 2 & 2 days. For those who are not familiar with the X-Pad, it's a 
> pen & drawing tablet for the Coco. It has a cart connected to the port.
> What I want to know, is there any problems interfacing the X-Pad to OS-9? 
> I would really like to try to do something in Level 2 with it and I know 
> the X-Pad only has a 256x192 resolution but I also know that's pretty easy 
> to overcome. This is done with standard joysticks all the time with neat 
> little math tricks and arrow keys. It would be at home in Level 1.
> A driver could be written to handle it's control codes and it could make 
> for an intersting interface for some interesting projects.
> The X-Pad uses ports $FF60, $FF61, & $FF62 (X, Y, Cursor status).
> These are also the addresses used by the CocoMax Hi-Res interface.
>
> Bill Pierce