>
>Subject: Re: Minix
> From: David Betz <dbetz at xlisper.mv.com>
> Date: Thu, 17 Nov 2005 16:31:36 -0500
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>Wow! That's great. I hadn't thought of using VTserver. I'll download
>it and see if I can get it working. I guess that means I'll have to
>switch my MXV11 over to TU58 boot though.
Easier way is to hit halt or break and use odt to load by and the tu58
boot. Saves messing with a jungle of wirewrap posts on the MXV.
Allison
>
>On Nov 17, 2005, at 4:24 PM, Doc Shipley wrote:
>
>> David Betz wrote:
>>> Do you know if a PC controller for an MFM drive can format an
>>> ST225 sufficiently that RT-11 can use it? I figure it would get
>>> the high level format wrong but wouldn't the low level format be
>>> okay? Can't RT-11 handle the high level formatting?
>>
>> Much easier, in my opinion, just to do it in XXDP. I have the
>> Winchester standalone (zrqch0?) from XXDP modified** to boot from
>> VTserver v2.x. If you want to try that, check out the system
>> requirements for VTserver and remind me next week and I'll send you
>> the fixed standalone utility. I've used it on ST225, ST251, RD53
>> and RD54 disks.
>>
>>
>> Doc
>>
>> ** according to J. Engdahl's excellent instructions
>
>Subject: Re: Minix
> From: David Betz <dbetz at xlisper.mv.com>
> Date: Thu, 17 Nov 2005 16:12:03 -0500
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>Do you know if a PC controller for an MFM drive can format an ST225
>sufficiently that RT-11 can use it? I figure it would get the high
>level format wrong but wouldn't the low level format be okay? Can't
>RT-11 handle the high level formatting?
NO, on the PC controller. Tried it and no success with any RQDXn version
as I have all three (and flavors of each at that).
Reminder. RQDX1 and 2 use one format and RQDX3 uses a different format.
No idea of the spcifics only that they do not interchange.
Allison
Just curious,
Does anyone have source files for any of the PDP-11 microcode?
I know the 11/44 microcode is on bitsavers, but it's pdf. I'm curious
if anyone has source files for the 44, 45 or 70.
-brad
Fellow ClassicCmp folk,
I would like to extend an offer to those who do not have device programming equipment, or who have device programmers that do not handle a specific type of device (such as bipolar PROMs) that you may need to read or program.
Specifically, for owners/users of classic systems, I will program whatever device(s) you need done (within reason -- let's not dump 50 of the things on me at once, please) at no cost other than postage.
The only restriction I'm going to put on this is that you be the actual owner of the system or device that needs the programmed chip. Please don't try to re-sell my service to others.
I would also like to ask for contributions to a growing FTP archive. Just as one example, firmware from Dilog or Emulex controller boards. If you have such controllers, or others, and would like to see the firmware made available to those who may have damaged memory or logic devices on their boards, please consider loaning me said EPROMs (or PROMs, or PALs, or whatever) so that I can read and archive them.
Any devices mailed in for archiving will be returned to their original owner at no charge whatsoever.
One final word: Due to spammers and other network abusers, and worm-infested machines, I've had to install some fairly heavy spam filtering on our mail servers. Large chunks of Comcast, Shaw, PacBell/SBC, and RoadRunner IP netspace, just to name a few, are blocked for E-mail traffic, as are big patches of Europe and the Pacific Rim countries.
If any message you happen to send to me bounces, please try my alternate address of kc7gr (at) qsl dot net. Worst case, put in a brief 'Page' for me on the group.
Thanks much.
-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner & Head Hardware Heavy,
Blue Feather Technologies -- http://www.bluefeathertech.com
kyrrin (at) bluefeathertech do/t c=o=m
"If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"
>
>Subject: Re: DEC "Junk" rescued
> From: ard at p850ug1.demon.co.uk (Tony Duell)
> Date: Thu, 17 Nov 2005 00:29:03 +0000 (GMT)
> To: cctalk at classiccmp.org
>
>> Funny thing about PDP-11 system models. Even number for the most part
>> are unibus like 11/34 or 11/44 (11/05, 11/35 exception) and odd number
>> like 11/03, 11/23 are qbus.
>
>I thought all machines ending in 5 (05, 35, 45, 55) were Unibus.
What about the 11/34m 11/44, 11/60!
>>From what I've read (and I've seen a manual with a sketch of one), there
>were going to be 11/09 and 11/39 machines. These would have been
>'packaged' versions of the 11/04 and 11/34 (much as the 11/10 is a
>packaged version of the 11/05). In the end, I don't think DEC ever
>shipped a machien with that nameplate, they were all marked 11/04 or
>11/34 as appropriate.
>
>-tony
The package machines were the PDT11 series (models 110, 130 and 150
were all cousinns of the 11/03) and the Pro350(f11 cpu) and PRO380(J11 cpu).
Allison
Hi,
I have this GraphOn 235 next to me that arrived some time ago without
a keyboard. It appears to take a handset jack (_not_ an RJ11, but
similar), so unless it _happens_ to be compatible with an LK201-type
keyboard, I'd have nothing to go on it.
I've been googling on it, but not finding any technical docs, only
"how to use" instructions for various universities. I _know_ it
emulates a Tek 4014 (among other things), so docs of that nature
aren't getting me anywhere.
Anyone have any hard technical docs on something like this, or at
least know something about its keyboard? Internally, it's driven by a
68000, but without disassembling the ROMs and reverse-engineering the
memory map, I can't tell much about how it works.
Thanks for any pointers,
-ethan
>
>Subject: Re: Minix
> From: Gordon JC Pearce <gordonjcp at gjcp.net>
> Date: Thu, 17 Nov 2005 18:41:22 +0000
> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
>
>Actually, I meant the RL02 terminator. I have been entering bootstrap
Only needed for RL02. Not the RX02 as mentioned.
>code by hand since one of my bootstrap ROMs went pins-up a couple of
>weeks ago - you may remember I posted asking about favoured boot ROM
>images? Not to mention entering quite a lot of code into ODT by hand
>when I first got my 11/73 and *nothing* would play nicely...
>
>Originally the Baydel multipurpose card could boot pretty much any
>common QBus mass storage.
Like the bdv11 (m8012).
>> The RQDX will need the distribution board to breakout the floppy and HD
>> connection from the 50pin cable. If you find prints it's something
>> that can be wire wrapped (it's only connectors). The boot for MSCP
>> disks is also possible to hand enter.
>
>Got the breakout board, in the BA23. Haven't played with it yet though.
Floppy disk can be RX50 or TEACFD55GFR. If the controller is RQDXXX1 or 2
the disk will be RX50 or only one side of Teac (RX33). If RQDX2 depending
on ROM rev it will be RX50 and or RX33 (800k). You can bet on
RX50 compatability in all cases which is single sided 80track 10 SPT.
To use the teac you may require nonstandard jumpers [compared to RX33] on
the drive to make it look and act like RX50 to older RQDXn though it
does work fine.
The hard disk is st412(10mb), ST225(20mb), st250(40mb), Quantum D540 (30mb).
However they must be formatted with either xxdp or deom a system that can
such as uVAX2000 (for RQDX3 only).
Allison
>
>Subject: Re: Minix
> From: Gordon JC Pearce <gordonjcp at gjcp.net>
> Date: Thu, 17 Nov 2005 18:36:37 +0000
> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
>
>woodelf wrote:
>> gordonjcp at gjcp.net wrote:
>>
>>> I just paid about ?30 for some PDP11/03 boards, CPU, MXV11 and some kind
>>> of serial card (can't remember the exact type). I had a BA23 lying
>>> around
>>> empty, and an RQDX3. Now I need some media...
>>>
>>>
>>>
>> Well what about a whole set ? A lot of people like myself can't be
>> mix-ing and matching
>> part. I just want to pen the box and plug it in if I were to buy one.
>>
>> PS A small HD would be nice too. I got a terminal already
>
>That is pretty much a whole set. Oh, I didn't mention the two
>opto-isolated I/O cards I got from eBay too, they should be fun!
>
>I got (from a bloke in Australia, just beating a chip collector) on eBay
>the following: M8047, M8043 and M7270.
>
>The M7270 is a cpu, and the M8047 has some memory, bootstrap ROMs and
>two SLUs on board. I could build a very nice portable RT-11 machine
>just with that!
>
>Wonder what the current draw is?
>
>Gordon.
M7270 +5V at 1A +12V at .22A
M8043 +5V at 1A +12V at .25A 4 serial ports
M8027 +5V at 1.2A +12V at .1A 2 serial ports, MXV11AC 32kb ram +Eprom
The M7270 is the LSI11/2 CPU (16bit address) and the MXV11 multifunction
card are a near complete system on two cards. You would only need a Tu58
equiventlt on the secod serial port to boot or some disk (RXV21) to have
a system in three boards.
Allison
