CUBIX/6809 updates

Dave Dunfield dave04a at dunfield.com
Tue Dec 13 16:49:21 CST 2005


> >I think a Floppy chip with a real built in data separator is the way to go.
> 
> Find a37c65 or 9266. no big deal using raw ttl as then  you can do ANY 
> data rate.

Also a good idea.
 
> >Also  a good dma  is needed,  as  having the cpu do  floppy  I/O leaves
> >no margin for serial  I/O.
> 
> Not required.  Small system, nice addition but pumps up complexity 
> more than a bit. 

Agreed, although there is nothing in the design of CUBIX to prevent a DMA
disk interface.

 

> >The other thing is a NICE terminal to go with the system. I don't want 
> >to boot windows or dos to run a terminal. For development work a PC is 
> >a good idea until you get a OS running. I have a used Altos IV here, 
> > from what the keyboard says but I don't know of  how many years of 
> >life the terminal may have left.
> 
> Fix it, build one or find a VT220,320,320 whatever.

Or do like I did in the original portable unit - put on a 6845 and do your
own video display.

Regards,
Dave


--
dave04a (at)    Dave Dunfield
dunfield (dot)  Firmware development services & tools: www.dunfield.com
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