Looking for a manual fot the Mentec M100 CPU board

[Michael Raab]

Hello,

I'm looking for a manual and/or engineering sheets for the mentec M100 CPU board.

Not found it on bitsavers - all information is welcome.

regards

Michael

[Mark Matlock]

On Friday, July 2, 2021 at 10:55:14 AM UTC-5, m...@mrsystems.de wrote:
> Hello,
>
> I'm looking for a manual and/or engineering sheets for the mentec M100 CPU board.
>
> Not found it on bitsavers - all information is welcome.

Michael,
I'm also looking for the Mentec M100 manual. I do have manuals
for the Mentec M1 and M11 which do not use a J11 but the configuration
menu has some similarity to the M100 so they help a bit. Let me know
if you want them and also if you do find a M100 manual I'd be interested
in a copy. If I find one I'll also let you know.

Best,
Mark

[Michael Raab]

Hello Mark,

Thank's for your offer. The manuals for M1 and M11 are here in my database.

If I find a M100 manual as print or file - I'll inform you.

If anybody has a printed M100 manual - If someone is willing to lend me the manual for a scan, that would also be a solution.


regards

Michael

[Michael Raab]

Hello Mark,

I've my mentec 100 now running in a MicroPDP BA23 system with a emulex UC07 controller and a SCSI2SD emulator by AmigaKit.

RT11 is booting and als parts like EIS FPU MMU are found. RT11 identified the CPU as 11/73+ with 4 MB of memory.

XXDP also booting.

Is there a RT11 image by mentec that correctly identify the CPU as mentec 100?
Are you intereseted in picture of the switch and jumper configuration of the M100?

regards
Michael

[Matlock]

Michael,
My Mentec M100-04 is set up pretty similar to yours. It is is a BA23 box with a UC07 and
two SCSI2SD cards, and a DELQA for DECnet/TCP-IP using RSX11M+ V4.6

I've never run RT-11 on the Mentec board but RSX reports the following info for the M100:

CON>dis att for sys
SYS
PDP-11/73, EIS,QBUS,D-Space,Cache,FPP,
Clock=KW11-L, $TKPS=60., $TTPRM=000002, Cache_control=000001

If there is a version of RT-11 that correctly identifies the M100 it would have to be the
latest version RT-11 V5.7 but I doubt if it is correctly identified by it since the latest version
of RSX11M+ V4.6 doesn't identify it correctly either.

if you want we could compare card switch settings to via photos.

In the RT-11 V5.7 release notes the following mention of the Mentec boards is made:
Updated Hardware List for Version 5.7
The following hardware has been added:
• SCSI adapter (added but undocumented for Version 5.6)
• SCSI disk (added but undocumented for Version 5.6)
• SCSI tape (added but undocumented for Version 5.6)
• Mentec M-series processors
• M100 (J11 based)
• M90 (J11 based)
• M80 (J11 based)
• M70 (J11 based)
• M11 (J 11 emulation)
• Time of Year (TOY) clock for Digital’s KDJ11-E based processor s
• Previously retired devices (1)
• Other SCSI devices(1)

RSX11M+ V4.6 has a similar mention of the Mentec boards but I've never been able
to get the TOY clock to work. Does that work for you under RT-11?

Best,
Mark

[Michael Raab]

Hello Mark,

I'm sorry for my late reply, but there's a lot of work to do at this time.

First - Are you sure there is a TOY clock at the M100 board?

I've have a 11/93 with KDJ11-E and 4MB memory. The TOY clock is found by RT11 5.7 and RSX11M+ 4.6 - but same booting with the M100 doesn't find a TOY clock.

I save a 11/73+ with 2 RL02, a dual Floppy Disk 8 inch, a big Tape drive and an 8 inch Harddisk last weekend - therefore I can setup the QBus cage with the m100 for some tests and pictures next week.

I prefer to communicate using e-mail because of pictures and communication speed.

Here is my address:

mikes...@gmail.com

have a nice day

Michael