Re: Zip GS questions

[Barry Rees <Barry.Rees@prodigy.net>]

pubpc1@library.ucla.edu wrote:
> 
> Barry, yes it will work.  I'm in the dark about how the Zip maps memory,
> but from experimenting on the Zip, it seems that any time you have four
> 32k x 8 SRAMs installed, you can set the DIP switches to any of the
> configurations from 8k all the way to 64k.
> 

Scott,

I need to read the posts more carefully. After re-reading earlier posts,
I see that you had already shared this info. Thanks for your patience in
posting the info again. Setting the DIP switches to use less than the
installed cache is news to me. I wish I had known that when I was
testing before, but I sure appreciate knowing it now for the next test
session. Thanks!

> 
> So you might consider trying 16MHz/16k.  It will almost certainly be
> faster than 12/64.  I hope you can get the board up and running at
> 16MHz (that's faster than most upgraded Zips run!) and post your
> success story when you do.  Thanks.  :)
> 

I will try it and I'll post the results.

> 
> The 55MHz and 60MHz oscillators are available from Digi-Key.  They
> are the "half-size" kind, but the Zip can use both types.
> 
Thank you. I appreciate knowing the 55s are available.

Barry Rees