Brenton, at 00:23 on Mar 22 1996, you wrote to Bill Grimsley...

BG> What's the story with EPROM copying these days,

BV> The same as it's always been.

Well that tells me a whole lot!  :)

BG> do you need highly specialised equipment, or what?

BV> Depends on what you consider "highly specialised".

An EPROM burner, for a start.  I assume that's all that's required other
than the usual PC and peripherals.

BG> The Sportie's EPROM appears to be a fairly standard 256Kb job, and
BG> I wonder, do they generally copy first time, every time without any
BG> problems?

BV> Hmmm...The EPROM in my Sportshoe is in a PLCC package and I don't
BV> have an adapter for it. I can blow standard DIP packages but not
BV> PLCC. Dieter used to have a gadget which would do PLCC stuff until
BV> he told them where to shove it. (Some people, no consideration for others)

That's the one.  As you know, they have no UV window, so I presume that
they are only electrically erasable (if at all).

BG> Also, can they be altered slightly, if required?

BV> Not a problem, provided you know where. Some are checksummed though
BV> and they can hide the checksum in a weird location which can make
BV> it a tad difficult.

If the original ROM image can be saved to disk, then it is editable AFA I'm
concerned.  May not be necessary anyway.  The actual blank EPROM only costs
a few dollars these days, I understand.  Is that about right?

Regards, Bill

--- Msgedsq/2 3.20