EPROM manufacturer and device IDs

[Matt S Bower]

Ludis Langens wrote:
> 
> My problem is that my new PROM programmer knows all about these ids.
> However, it doesn't want to share this information.  For example, lets
> say I've got it set to "National 27C256" and the id checking is turned
> on.  I grab the next MEMCAL, plug it in, and tell the programmer to read
> the chip.  If the EPROM actually is a National 27C256, it reads it just
> fine and I can proceed to saving the data.  However, lets say it is
> something else.  The programmer will abort the read saying something
> like: "Device Id mismatch, actual id is '8986'."  It doesn't tell me
> that 8986 is an Intel 27C256.  It also doesn't automatically switch to
> Intel mode and procede.

I am having a similar problem with mine and have not figured it out
yet.  I did find on mine that it device descriptions that I can page
through.  The device description on mine has the list of ID's so once I
put the PROM in and get the ID I can scroll through the available ID's
and look for the proper ID.  Not the best fix but it is a lot faster the
selecting each and every option and trying a read.

Matt
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