On Mar 27, 2007, at 1:54 PM, John S wrote:
I am thinking of building a programmer for the 2708
EPROM, that can
also read an EPROM and dump it to a serial port.
As 2708s are obsolete few moern programmers support them, apart
from a few that cost many $100s. So I thought why not try and build
one? I've found references to the following classic magazines, and
I would be willing to pay a small fee for photocopies or scans of
the articles:
Program your next EROM in BASIC. Schematic for a 2708 erasable read
only memory reader and programmer which uses parallel IO ports to
set data and address. The software to drive the programmer is
written in BASIC.
Byte - March 1978 page 84 on (main article)
Byte - April 1978 page 62 (Byte Bugs)
I can provide scans of this article. I will see if I can get it
done tonight. I seem to recall Ciarcia having done a couple of other
programmers after this (very early) one; I will check his books to
see. I'll see if I can get to this tonight.
It would be near-trivial to adapt the original design to be driven
by a microcontroller, by the way.
-Dave
--
Dave McGuire
Port Charlotte, FL