No Subject

[jfox@xxxxxxxxxx (Jeff Fox)]

Subject: video output

>If I buy one, I will probably interface it to an old Tandy 200 notebook or my
>HP100LX palmtop.  I don't have a real PC or a spare color monitor.  I'm
>basically interested in using it as an off-line signal processor/numerical
>processor.  All I need is to be able to send and retrieve data to the box and
>insert code to be executed.
>
>-- 
>M. Edward Borasky (znmeb@plaza.ds.adp.com)
>
>"There's no fuel like an old fuel!" -- National Coal Institute
>

If you have a VCR and a TV you can always use it as a monitor.  Just
connect the P21 video out to VIDEO IN on the VCR and select the correct
input.  I also use MuP21 on a BW monitor.                  

If you are not using  video output at all, you can get a slower xtal 
and change the boot code to set up the video processor to only generate
refresh.  Or you can forget about refresh if you design you code to
always keep code and data self refreshed through constant access.  This
will give you better performace for off-line processing.

Jeff Fox