7 Nov
2016
7 Nov
'16
2:59 a.m.
Thanks for your opinion on this board. I've used it for maybe 25 years
and its does all the 5V Eproms. Its currently configured for 27256.
It does not do any of the three voltage eproms.
Now a manual would be helpful, your comments are things I already know.
I don't care to unwrap a S100 board with about 18 ICs and 6 voltage
regulators.
If I'm doing that I'll start from scratch.
Info about the bitblaster is of no use.
Allison
On 11/06/2016 11:41 PM, dwight wrote:
Most of these boards only do one or two types of
eproms.
I have a bit blaster that only does 2708/04 EPROMs.
A couple hours on an extender card should be enough to
figure one out, with a 'scope.
They are usually not to complicated.
Some latches for data and address. Some select bits and
something to turn the programming voltage on and off.
If it is intended for multiple EPROM types, there will be a
bunch of resistors to select assorted voltages.
Dwight
________________________________
From: cctech <cctech-bounces at classiccmp.org> on behalf of allison <ajp166 at
verizon.net>
Sent: Sunday, November 6, 2016 12:46:51 PM
To: cctech at classiccmp.org
Subject: looking for S100 EPROM programmer board.
I ahve and can't find the manual for a:
Digital research computer S100 EPROM Programmer
Any info might help. Specific info needed is schematic and headers for
various Eproms.
Allison