31 Oct
1999
31 Oct
'99
9:04 a.m.
At 15:29 31-10-1999 -0500, Tim Shoppa declaimed...
1. Really, really old devices aren't well
supported on even the best
modern programmers. (The obvious example of this is the Intel 1702A.)
In many cases you have to go back to "classic" programmers to get these
programmed.
<snip>
Absolutely right. My UniSite, as slick as it is, doesn't go back any
farther than 2708's for EPROMs, and the Signetics/Philips 82Sxxx series for
bipolars.
2. Some devices (particularly PALs) with the security
fuse blown *can* be
reverse engineered through either detective work or brute force.
Functional vs. exact replacement. Yep, I've done that.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"Our science can only describe an object, event, or living thing in our
own human terms. It cannot, in any way, define any of them..."