What hardware runs 2BSD (was Re: For sale 128K Core RAM Industrial PDP 11/40 Massbus System)
31 Oct
2016
31 Oct
'16
8:16 a.m.
On Mon, Oct 31, 2016 at 11:11 AM, emanuel stiebler <emu at e-bbes.com> wrote:
On 2016-10-31 08:48, Ethan Dicks wrote:
About 15 years ago, Jonathan Engdahl backported the MSCP driver to 2.9BSD...
One of the great recent updates was backporting
the MSCP driver from
2.11 to 2.9. That opens up KDF11 MicroPDP-11s to running 2.9 with an
RQDX3. Prior to that availability, one needed an RLV12 or other Qbus
disk controller for that platform.
I missed that :( more details?
First hit:
http://home.windstream.net/engdahl/2_9bsd-mscp.htm
-ethan
31 Oct
31 Oct
9:18 a.m.
On 2016-10-31 09:16, Ethan Dicks wrote:
On Mon, Oct 31, 2016 at 11:11 AM, emanuel stiebler
<emu at e-bbes.com> wrote:
I guess, I tripped over the word "recent" ;-)
THANKS!
On 2016-10-31 08:48, Ethan Dicks wrote:
About 15 years ago, Jonathan Engdahl backported the MSCP driver to 2.9BSD...
One of the great recent updates was backporting
the MSCP driver from
2.11 to 2.9. That opens up KDF11 MicroPDP-11s to running 2.9 with an
RQDX3. Prior to that availability, one needed an RLV12 or other Qbus
disk controller for that platform.
I missed that :( more details?
First hit:
http://home.windstream.net/engdahl/2_9bsd-mscp.htm
-ethan 
6 Nov
6 Nov
12:46 p.m.
New 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
8:41 p.m.
New subject: looking for S100 EPROM programmer board.
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
7 Nov
7 Nov
2:59 a.m.
New subject: looking for S100 EPROM programmer board.
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
2739
days inactive
2746
days old
4 comments
4 participants
participants (4)
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ajp166＠verizon.net -
dkelvey＠hotmail.com -
emu＠e-bbes.com -
ethan.dicks＠gmail.com