Was: PDP-8/A transformer hum Is: VXT-2000 stuff.

[Joseph Zatarski via cctalk]

On 6/9/2020 11:51 AM, Glen Slick via cctalk wrote:

On Tue, Jun 9, 2020 at 9:04 AM Bill Gunshannon via cctalk
 wrote:

For the VXT-2000 with an H7109-B the rated voltage and current values
are printed right on the power supply label:

+5.1V, 7.81A
+12.1V, 0.62A
-12.1V, 0.46A
-9V, 0.2A

Fixed width character pinout diagram:

   +=+
   -9V | Yellow | Orange | +12.1V
   +++
   ??? | White  | Black  | Gnd
   +++
+5.1V | Red| Blue   | -12.1V
   +++
+5.1V | Red| Black  | Gnd
   +++
   Gnd | Black  | Black  | Gnd
   +=+

The mystery is the White wire. The power supply label only lists 4
output voltages. The White wire appears to be routed to the Ethernet
daughter board. The measured voltage appears that it might be floating
slightly negative, somewhere around -1.5V when the Ethernet daughter
board is installed and around -5V when it is removed. Maybe it is a
high impedance earth ground connection? It appears to be connected to
the shield of the Ethernet BNC, which measures around 1M-Ohm to the
chassis ground when the power supply is disconnected from the main
board, and around 0.75M-Ohm when the power supply is connected.

As long as we are talking VXT-2000, I have this on file, figure it would 
be useful for future googling of the list if
this were here as well.? May be a repeat of info from an earlier post, 
or maybe elsewhere.


I didn't save the source of the info, but looks like someone named Matt 
Millman did it.


The setup is as follows: HP Envy laptop running MOP boot daemon, 
connected to Lantronix LTX-C twisted pair
ethernet to AUI converter (not the same as a twisted pair MAU). This is 
then connected to a cabletron coax
MAU with a 10BASE5 vampire tap. The coax runs over to another MAU, which 
is connected via an AUI cable to
my VXT2000. I didn't think of it, but it would have been nice to have a 
real DEC MAU on the VXT2000, I've

got several DEC h4000's I could have used.

https://www.youtube.com/watch?v=A5T2GlAN2N4

http://tech.mattmillman.com/projects/10base5/


The first link is mine actually. (Hi, I'm Joe from Joe's Vax Repair and 
More). I have a VXT-2000 and have had it setup and booting on a few 
occasions. I also happened into some 10BASE5 equipment a few years back 
and the VXT2000 was one of the only AUI devices I had at the time. I'm 
not Matt Millman, but I did reference that site to find the existence of 
the Lantronix LTX-C and similar devices.


Now that I have more AUI gear, I plan to put different gear on the 
3-node AUI segment (cisco 2511 router, media converter to 10BASE2, 
VAXStation 3200) and move the other 10Mb equipment to a 10BASE2 segment. 
The whole mess will be joined to the main network via T1 on a Kentrox 
CSU/DSU on the 2511.


You can boot the VXT2000 using MOP or BOOTP and TFTP actually. MOP was 
the first thing I managed to get working, but BOOTP and TFTP worked 
equally well once I had it set up correctly. Unfortunately my bootptab 
file is on a roommate's MicroVAX II...


Anyway, see the links section here for the software: 
https://terminals-wiki.org/wiki/index.php/DEC_VXT2000


There's also theoretically OpenBSD and NetBSD support for the VXT2000, 
but in my experience the netboot stuff is pretty broken on VAX for 
whatever reason. There's at least one bug for the SGEC ethernet chip 
driver, and I could only get older versions of the network boot mop file 
to load. Of course, the older versions wouldn't support the newer kernel 
format, which apparently changed at some point. Or maybe I'm just doing 
something wrong.


If the machine in question gets repaired, feel free to contact me with 
any questions. If you're familiar with netbooting VAX systems, it's not 
too hard to figure out though.


I'll add that the note about the 9V supply being isolated sounds 
reasonable. It could be used as the supply for the built-in 10BASE2 MAU 
on some units. I can't confirm as my unit has 10BASET instead which has 
no requirement for an isolated supply.

Re: VAXStation 3200 RAM repair video (again)

[Joseph Zatarski via cctalk]

On 5/16/20 1:18 PM, Warner Losh wrote:



On Sat, May 16, 2020, 11:02 AM Joseph Zatarski via cctalk 
mailto:cctalk@classiccmp.org>> wrote:


I had to repair the RAM board in my VS3200/KA650 again, so I took video
of the whole process (less about a whole day I lost troubleshooting a
trace I nicked).

Maybe some of you will find it interesting to watch.

https://youtu.be/3LxTJIzow2k  (tip: get through youtube videos
faster by
setting to double speed, etc. :)


Much easier than watching 2 at once.

Warner



I thought that was why we had two eyes.

VAXStation 3200 RAM repair video (again)

[Joseph Zatarski via cctalk]

I had to repair the RAM board in my VS3200/KA650 again, so I took video 
of the whole process (less about a whole day I lost troubleshooting a 
trace I nicked).


Maybe some of you will find it interesting to watch.

https://youtu.be/3LxTJIzow2k  (tip: get through youtube videos faster by 
setting to double speed, etc. :)

update: stuff for sale - recent move

[Joseph Zatarski via cctalk]

Just wanted to remind everyone I've still got a bunch of stuff listed 
that I'd like to pass on. I've been slowly going through stuff.


Recently added stuff is here, in reverse chronological order. This 
should make it easier to stay caught up on newly listed stuff.


https://docs.google.com/spreadsheets/d/19vhF-o6vx9g7l-D8cvLJ5OPJzpdmU9PTTknbxY-mY58/edit#gid=245203856

Full list of categories here, follow the hyperlinks to see the 
individual items.


https://docs.google.com/spreadsheets/d/19vhF-o6vx9g7l-D8cvLJ5OPJzpdmU9PTTknbxY-mY58/edit#gid=0

I'm located in the west suburbs of chicago in case anyone is local.

Maybe you need a nubus ethernet card, or a jetdirect card for your HP 
laserjet.


Or maybe you need some Bell telephone themed jewelry for the mrs.

If you see something you're interested in, let me know and we can work 
out a price. So far, I've generally been looking at 1/2 ebay sold 
listings + cost of shipping. You're always free to make a higher or 
lower offer, I won't get offended if your offer is too low.


Sales are first come, first served.

Best Regards,
Joe Zatarski

On 3/1/20 10:15 AM, Joseph Zatarski wrote:

Hello Everyone,

I recently moved and just got my storage unit of stuff transported to 
the new house. I'm starting to go through it all because I know there's 
a good mixture of stuff I want and stuff I don't want but may be useful 
to someone else.


I've started inventorying a lot of the stuff I'd like to pass on here: 
https://docs.google.com/spreadsheets/d/19vhF-o6vx9g7l-D8cvLJ5OPJzpdmU9PTTknbxY-mY58/edit?usp=sharing 



I'm not looking to get much out of any of this, pretty much just recover 
whatever I paid for it plus effort for shipping (generally should be 50% 
or less ebay value, plus cost of shipping). Alternatively, I'm in the 
west suburbs of chicago if anyone local wants to pick something up.


Quick run down of what I've got posted so far:
-a couple DEC Alpha items (RAM and SCSI caddy stuff, possibly a couple 
drives later)

-HP jetdirects for laserjet 4/5 (standalone to come later)
-a KVM or two (more to come)
-Mac network cards (nubus and one for IIsi or SE/30) as well as a couple 
other accessories (Dayna Mini Etherprint, AAUI transceiver, more 
accessories to come)

-misc cables/adapters, if you have something specific in mind, let me know
-PSU - mostly just some random ATX PSUs
-a few telephone accessories (more to come)
-ISA, PCI, PCI-X, PCIe cards (network, video, SCSI, FC)
 -possibly notable, Compaq ELSA GLoria Synergy graphics cards for 
Alpha PWS?


If anyone has further questions, wants pics, more description, testing 
of item before sale, etc. feel free to contact me on or off list (if on 
list, please CC me, I'll see it quicker) or on Freenode IRC (nick is 
joe_z).


As I recently moved, I don't have 24/7 internet available as of right 
now, but once I do I'll have a bouncer on IRC 24/7.


Best Regards,
Joe Z

stuff for sale - recent move

[Joseph Zatarski via cctalk]

Hi.

I forgot to mention it’s an eye phone
11 PRO 256gb.


I may be missing something -- *what's* an "eye phone"? I thought you
were listing vintage kit, not smartphones?

--
Liam Proven – Profile: https://about.me/liamproven
Email: lproven at cix.co.uk – gMail/gTalk/gHangouts: lproven at gmail.com
Twitter/Facebook/LinkedIn/Flickr: lproven – Skype: liamproven
UK: +44 7939-087884 – ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053


I believe Kevin replied to the wrong e-mail by mistake. He must be 
selling something himself and had a similar subject line.


That said, no hits on my post yet? what, nobody needs nubus ethernet 
cards? or various ISA/PCI/PCI-X expansion cards? a dozen computer mice? 
DEC Alpha 4100 RAM? some nice combination SCSI/fastethernet cards?


OK, I get that it's mostly junk ;), but no attention at all so far. Keep 
checking, getting more stuff in the list every day. I added a recent 
section so people can keep up on the recent additions without having to 
check the whole list.


As before, I'm in the west suburbs of chicago in case anyone is local 
and sees some stuff they want.

stuff for sale - recent move

[Joseph Zatarski via cctalk]

Hello Everyone,

I recently moved and just got my storage unit of stuff transported to 
the new house. I'm starting to go through it all because I know there's 
a good mixture of stuff I want and stuff I don't want but may be useful 
to someone else.


I've started inventorying a lot of the stuff I'd like to pass on here: 
https://docs.google.com/spreadsheets/d/19vhF-o6vx9g7l-D8cvLJ5OPJzpdmU9PTTknbxY-mY58/edit?usp=sharing


I'm not looking to get much out of any of this, pretty much just recover 
whatever I paid for it plus effort for shipping (generally should be 50% 
or less ebay value, plus cost of shipping). Alternatively, I'm in the 
west suburbs of chicago if anyone local wants to pick something up.


Quick run down of what I've got posted so far:
-a couple DEC Alpha items (RAM and SCSI caddy stuff, possibly a couple 
drives later)

-HP jetdirects for laserjet 4/5 (standalone to come later)
-a KVM or two (more to come)
-Mac network cards (nubus and one for IIsi or SE/30) as well as a couple 
other accessories (Dayna Mini Etherprint, AAUI transceiver, more 
accessories to come)

-misc cables/adapters, if you have something specific in mind, let me know
-PSU - mostly just some random ATX PSUs
-a few telephone accessories (more to come)
-ISA, PCI, PCI-X, PCIe cards (network, video, SCSI, FC)
-possibly notable, Compaq ELSA GLoria Synergy graphics cards for Alpha 
PWS?

If anyone has further questions, wants pics, more description, testing 
of item before sale, etc. feel free to contact me on or off list (if on 
list, please CC me, I'll see it quicker) or on Freenode IRC (nick is joe_z).


As I recently moved, I don't have 24/7 internet available as of right 
now, but once I do I'll have a bouncer on IRC 24/7.


Best Regards,
Joe Z

WTB: wire wrap tools

[Joseph Zatarski via cctalk]

I'm looking to pick up a set of at least some hand tools for wire wrap, 
though I'm interested in wrap guns/bits as well.


I'm specifically looking for hand tools for 26awg wire, as well as 22 
and 24awg. I already have a hand tool for 30awg. Mainly interested in 
tools for .045" square posts rather than the .025" for those sizes of 
wire. These tools were commonly used for telephony wire wrap.


I'm interested in those sizes for wrap guns as well, but additionally 
would be interested in 30awg/.025" post bits as well.


I'm not entirely opposed to 26awg/.025" post, but that seems like a bit 
thick of wire for that size post, IMO.


Feel free to contact me on or off list.

Best Regards,
Joe Zatarski

Re: DEC KA650 VAX memory troubleshooting

[Joseph Zatarski via cctalk]

I used an HP 16700A, which you can see in the video I linked some time back:

https://youtu.be/eDMhdAEFEgc

On 11/24/19 8:27 AM, W2HX wrote:

Wow. Very nicely done! Which logic analyzer did you use to capture those 
displays?

73 Eugene W2HX

From: cctalk  on behalf of Joseph Zatarski via cctalk 

Sent: Sunday, November 24, 2019 1:28 AM
To: General Discussion: On-Topic Posts
Subject: Re: DEC KA650 VAX memory troubleshooting

Well, I finally got around to posting this on the CHWiki, in case
anybody was curious about this.

https://gunkies.org/wiki/DEC_KA650_Memory_Subsystem

On 6/17/19 7:56 PM, Joe Zatarski wrote:

OK, so where should a thing like this go: https://pastebin.com/taQwaTV6

Anybody got a decent place to upload that? it's my notes on the
MS650-AA, and more generally the KA650 CMCTL memory subsystem.

Includes my theory of operation of the CMCTL, the organization of
memory, the ECC equations (kinda, the info is there to derive them),
explanations of the signals on the memory bus, and most importantly, a
list of which bits and RAM regions correspond to the 312 DRAMs on the board.

On Sat, Jun 15, 2019 at 8:33 PM Joe Zatarski mailto:joezatar...@gmail.com>> wrote:
  >
  > Hey Everyone,
  >
  > I just thought I'd share a video of how I'm going about
troubleshooting the bad DRAMs on my MS650 memory board.
  >
  > https://youtu.be/eDMhdAEFEgc
  >
  > I apologize for the shaky-cam, I don't have a tripod, and I needed to
do a lot of panning anyway.
  >
  > I will be sharing my notes on the MS650 once I have a chance to write
them up properly as well. I wasn't able to find a printset for the RAM
card itself, so I assume one doesn't exist in digital form yet. I have
documented what bit and memory range each DRAM on the card corresponds
to, which may help someone troubleshooting in the future
  >
  > Regards,
  > Joe Zatarski

Re: DEC KA650 VAX memory troubleshooting

[Joseph Zatarski via cctalk]

Well, I finally got around to posting this on the CHWiki, in case 
anybody was curious about this.


https://gunkies.org/wiki/DEC_KA650_Memory_Subsystem

On 6/17/19 7:56 PM, Joe Zatarski wrote:

OK, so where should a thing like this go: https://pastebin.com/taQwaTV6

Anybody got a decent place to upload that? it's my notes on the 
MS650-AA, and more generally the KA650 CMCTL memory subsystem.


Includes my theory of operation of the CMCTL, the organization of 
memory, the ECC equations (kinda, the info is there to derive them), 
explanations of the signals on the memory bus, and most importantly, a 
list of which bits and RAM regions correspond to the 312 DRAMs on the board.


On Sat, Jun 15, 2019 at 8:33 PM Joe Zatarski > wrote:

 >
 > Hey Everyone,
 >
 > I just thought I'd share a video of how I'm going about 
troubleshooting the bad DRAMs on my MS650 memory board.

 >
 > https://youtu.be/eDMhdAEFEgc
 >
 > I apologize for the shaky-cam, I don't have a tripod, and I needed to 
do a lot of panning anyway.

 >
 > I will be sharing my notes on the MS650 once I have a chance to write 
them up properly as well. I wasn't able to find a printset for the RAM 
card itself, so I assume one doesn't exist in digital form yet. I have 
documented what bit and memory range each DRAM on the card corresponds 
to, which may help someone troubleshooting in the future

 >
 > Regards,
 > Joe Zatarski

Re: DECimage questions

[Joseph Zatarski via cctalk]

On Tue Mar 19 01:49:08 CDT 2019
>On 2019-03-17 20:36, Chris Hanson via cctalk wrote:
>>/I recently acquired a DECimage X terminal, which is theoretically a 
VXT-2000 with an add-on 2D accelerator. Unfortunately while the terminal 
is badges as a DECimage it didn’t include the board, just a frame buffer. /

>>//
>>/Does anyone have a spare DECimage board they’d be interested in 
parting with, or know a reasonable place to obtain one? /

>>You have the board number?
>>Sometimes if we discuss something here, magically boards show up on 
ebay.

>>Just an observation ;-)

Does MA-0270-92A help? got that number out of the VXT 2000 Installing 
and Getting Started Guide (EK-VXT20-IN), but it might be a two-part kit 
(accelerator board + DECimage sticker). The VXT 2000 Windowing Terminal 
and DECimage 2000 Option Service Guide (EK-VXT20-SV) lists VX20A-OP for 
the DECimage 2000 module.


For the twisted pair ethernet module, the same manual lists 54-20482-01.

Re: DECimage questions

[Joseph Zatarski via cctalk]

>I recently acquired a DECimage X terminal, which is theoretically a 
VXT-2000
>with an add-on 2D accelerator. Unfortunately while the terminal is 
badges as a

>DECimage it didn’t include the board, just a frame buffer.


That's unfortunate. My VXT2000 doesn't have that board either, I've 
always wondered how much it helps. I'm not too sure if the bottleneck is 
usually the 10mbit networking or the graphics. Probably depends a bit on 
whether you're using modern X11 applications or not. Modern stuff all 
likes to assume true-color (24bit or thereabouts) and render stuff 
locally and send it again to redraw, rather than rendering on the 
(remote) xterm it seems...



>Does anyone have a spare DECimage board they’d be interested in 
parting with,

>or know a reasonable place to obtain one?

Unfortunately, as I already stated I don't, and my only idea where to 
get one is ebay and similar sites, which I'm sure you already know.



>How about other components for this machine? I have the AUI/thin 
Ethernet card
>and wouldn’t mind replacing it with the AUI/twisted-pair card, and I’d 
also

>like to max out the RAM: It has 2MB onboard and I have the riser card with
>SIMM slots and one SIMM for an additional 4MB.

No clue where to get a twisted pair module, but mine has one. I 
currently have it hooked up to our thinnet segment though, and I've had 
it on our thicknet segment previously (now we have a proper VAXen 
occupying that transceiver).



>It uses what I’m told are DEC MS200-AA (2MB) and DEC MS200-BA (4MB) 
modules,
>which look like regular 72pin SIMMs. Are they special or are they 
compatible

>with anything common?
>
>  — Chris
>
>Sent from my iPad


Here's where I can help you. The SIMMs aren't really anything special, 
you can use 2MB and 4MB modules. The VAX SOC in the VXT is slow enough 
that you probably don't have to worry about access time, so 60 or 70ns 
modules are probably both fine. If you don't have a 4MB module laying 
around, you can use an 8MB or 16MB module, but you have to install a 
wire from a ground pin to A10 on the SIMM connector and fix the presence 
detect bits, IIRC. (A0-A9 gives 1024 rows and columns, 1M-word per bank, 
4 bytes per word, so 4MB SIMM. DEC left the unused address lines 
floating, and that causes issues with bigger SIMMs). You can also 
install a single jumper IIRC to make 16MB SIMMs appear as 4MB, and 8MB 
SIMMs appear as 2MB (it's just grounding one of the PD lines, I don't 
remember which). The most you can fit into a VXT2000 is 18MB IIRC, 
that's 3 4MB SIMM, + 4MB on the riser itself + 2MB on the motherboard.



Lastly, you'll need the VXT2000 SW, which I extracted from some VMS 
(infoserver?) CDs several years ago. Someone put them up on 
terminals-wiki.org, so you can grab them there: 
http://terminals-wiki.org/collections/DEC/vxt2000.zip



VXT021KT10.SYS is the full blown VXT software including local side 
applications, like DECWindows etc.


VXTLDR021.SYS is some intermediate loader you can use to get an NFS swap 
file or something like that if you have an infoserver or VMS running the 
infoserver software IIRC.


VXTEX020A.SYS is *just* the X server IIRC, missing the local side 
applications but having a smaller memory footprint. This doesn't even 
have a window manager, so you'd have to use it with a remote one and set 
up XDMCP.



The terminals boot from MOP or TFTP/BOOTP with late enough firmware. MOP 
has a daemon available for linux and BSDs, if you'd like to go that 
route, but otherwise TFTP/BOOTP is probably better supported by modern 
infrastructure



Hopefully this was helpful. If you have any further questions, don't 
hesitate to ask. I'm probably one of a few people who bothers to keep a 
VXT around running, so I can probably answer most questions you might 
have about setup and operation.



Best Regards,

Joe Zatarski

Re: Hayes Smartmodem 1200 firmware dumped:

[Joseph Zatarski via cctalk]

On 3/2/19 6:34 PM, Ethan Dicks wrote:

On Sat, Mar 2, 2019 at 4:16 PM Joseph Zatarski via cctalk
 wrote:

The files are attached to this email...

They are not.  This list doesn't support attachments.

-ethan



I swear that I have gotten cctalk digests with attached files in the 
past, but maybe I'm misremembering. Nonetheless, the files have been 
hosted here by silent700: http://nocarrier.net/archive/ROMs/Hayes/

KA650 VAX memory error

[Joseph Zatarski via cctalk]

On Sat, Mar 2, 2019 at 3:16 PM Glen Slick via cctalk
 wrote:

On Sat, Mar 2, 2019 at 12:02 PM Joseph Zatarski via cctalk
http://www.classiccmp.org/mailman/listinfo/cctalk>> 
wrote:

//>>/On a somewhat related note, I don't suppose anybody knows or has />>/documentation on the 
pinout of the C/D interconnect on these RAM boards? />>/The pinout for the ribbon cable is in the manual, 
but the C/D />>/interconnect doesn't seem to be documented in any of the manuals that />>/are 
online. />

650QS Field Maintenance Print Set, MP-02538-01, Rev C1

>http://www.bitsavers.org/pdf/dec/vax/650/MP02538_650QS_Sep88.pdf  
<http://www.bitsavers.org/pdf/dec/vax/650/MP02538_650QS_Sep88.pdf>


Page 65 of the PDF, KA650 Circuit Schematics Page 23 of 40
MA0 - MA9
CAS0 - CAS3
RAS0 - RAS3
WE
SE
XADDR20, XADDR21
+5
GND

Page 47 of the PDF, Page 5 of 40 is an overview block diagram of those
signals originating at the DC357 CMCTL Memory System Controller.


OK, thanks, that's great. Now I won't have to bother tracing things out if I 
decide to go that route. Didn't realize there was a printset for the KA650, but 
I guess I didn't even bother to check.

Hayes Smartmodem 1200 firmware dumped:

[Joseph Zatarski via cctalk]

Hello again Everyone,


Last night my roommate and I worked on dumping the Hayes Smartmodem 1200 
firmware so that we could attempt a repair on another modem. This other 
modem had a dead EPROM, a dead ROMless Z8, a dead CD4069, and a dead 
'SR0075' (custom marked Hayes part with Zilog logo on it).



As it turns out, the SR0075 is a Z8 with 2kB of mask ROM. Attempts to 
read it like an OTP/EPROM part did not work, however were were able to 
put it in test mode, as detailed on page 363 of 
http://www.textfiles.com/bitsavers/pdf/zilog/z8/Z8_Family_Design_Handbook_Jun88.pdf



By doing so, we were able to execute some simple code which read every 
byte of the internal ROM and dumped it to memory address 0x, which 
we then recorded with a logic analyzer to create the dump of this Z8.



The files are attached to this email, and it'd be nice if they were 
archived somewhere. Maybe somewhere in bitsavers, if Al could help us 
out with this. One file is the internal Z8 ROM, and the other is the 
2764 that goes with the ROMless Z8.



Best Regards,

Joe Zatarki

KA650 VAX memory error

[Joseph Zatarski via cctalk]

Hello Everyone,


I've got a KA650 with a MS650-AA 8MB memory module. When we initially 
started messing with this VAX, it was giving a memory error. We were 
able to track down first the bad bank, and later the individual bad ZIP 
RAMs with the help of my logic analyzer. For now, I kludged an SOJ DRAM 
in there that seems to be working without issue. The machine no longer 
gives memory errors during POST, but if you run one of the more thorough 
memory tests like #48 (MEM_Addr_shrts), it fails. My initial thought was 
that this RAM test checks for shorted address lines, which would cause 
writing to one location to change another location perhaps. However, I 
haven't been able to replicate the error with DEPOSITs and EXAMINEs on 
the console.



Without having to disassemble the VAX ROM, does anybody know what this 
test does? Once I know what I'm looking for, I can probably convince the 
logic analyzer to see the error with some fancy triggering, and get this 
board 100% fixed before I order some ZIP DRAMs.



On a somewhat related note, I don't suppose anybody knows or has 
documentation on the pinout of the C/D interconnect on these RAM boards? 
The pinout for the ribbon cable is in the manual, but the C/D 
interconnect doesn't seem to be documented in any of the manuals that 
are online. With the price of MS650's these days, it seems like the 
cheaper route (albeit more work) is to build a new RAM board rather than 
buy one (especially if a single 64MB board could be made). I suspect 
it's not too complex anyway, and it can probably mostly be traced out, 
and the rest inferred and then verified with a logic analyzer.



Thanks,

Joe Zatarski

HP logic analyzer QFP132 interposer and DSD-4140 microcode ROMs

[Joseph Zatarski via cctalk]

Hello everyone,


I've got two unrelated things I'm looking for:


The first is an HP logic analyzer interposer for the emulation adapter 
for an MC68332. This would have a PGA socket on it, and sort of a 
reverse socket for the QFP132 package (attaches to a chip from the top, 
to interface to a chip soldered onto a board). I believe the part number 
would be HP E3417A. I already have the QFP160 adapter, but the chip I 
want to interface to is a QFP132. This adapter supposedly exists, but 
I've had no luck trying to find it through the usual channels.



The second that I'm looking for, is if there's someone out there that 
owns and can dump the microcode ROMs from a DSD-4140 QBUS floppy 
controller. We've got a card here that's missing one of the ROMs, and 
we're also not sure if the ROMs are mixed up, so a dump of all 4 ROMs 
would be appreciated. They are 82S181, but they should read in any EPROM 
burner with a breadboard and some wiring to adapt the pinout. Burning 
them is another story, but we'll worry about that later... Here's a 
picture of the card in question: https://i.imgur.com/tzYjPYF.jpg


And if anyone has one of these and is kind enough to dump it for us, 
there's also an 82S137 on the card that probably deserves a dump as well.



Thanks,

Joe Zatarski

Re: Jesse and the ebay mess

[Joseph Zatarski via cctalk]

On Fri, 25 Jan 2019 12:17:59 -0500,  Jesse Dougherty jesse at
cypress-tech.com said:
>Holly smokes... 1st, Cindy thanks for calling me and vouching for me on
>this list but let me clear something up here
>
>A. the ebay ads are mine and I put all content up there.
>B. there reflects different locations (Largo, Clearwater, Land o lakes)
>all around the Tampa area. We have been in that area since about 1995
>and address have changed several times because we have moved .
>C. The ebay ads are not all corrected with the current address since I
>didn't thing that was going to be any kind of issue ever. I have like
>400 running ads and you have to individually correct each one.. again, I
>really never and up until this moment thought it was ever an issue since
>selling on ebay since 1997.
>D. some of the older 1k and older board ship from Pittsburgh because
>thats where I split my time between Tampa and Pittsburgh and the really
>old stuff is in Pittsburgh.
>E. I never even posted my ebay stuff on here, I did an intro and posted
>some stuff I was looking for.. Heck, I never even contributed to the
>ebay thread.
>
>Jesse

Thanks for clearing that up.

I guess the only real complaint we have with respect to the ebay thread is
that stuff is making it to the scrap pile at all, but I do acknowledge not
everything can be saved, and you are running a business after all.

That said, if it's not too much trouble, I think it would be nice if you
check a few places (like here) before things go to the scrap pile. On the
off chance that some 'scrap' is worth more than scrap-value to someone, I
think it'll work out better for all of us.

Best Regards,
Joe Zatarski

Re: Jesse and the ebay mess

[Joseph Zatarski via cctalk]

>Sorry, but this doesn't really check out...

*snip*

With regards to my last message, I should also note that I did notice the
ebay auction shipping locations do not all match the location listed in
Jesse's email. This is interesting at least, but then some auctions do
match land o' lakes, FL

Does Cypress-Tech have multiple locations?

Jesse and the ebay mess

[Joseph Zatarski via cctalk]

On Thu Jan 24 16:26:48 CST 2019, Electronics Plus sales at elecplus.com
said:
> I just got off the phone with Jesse at  Cypress. He said he did not post
the
> gold and tantalum items on ebay. It is someone else, trying to cast a bad
> name on him.

Sorry, but this doesn't really check out. Jesse sent an email to the list,
original subject 'Hewlett-Packard 3000, 9000, Itanium (HP-UX & MPE/iX)
Servers, Storage Arrays, Replacement Parts, Maintenance, & Disaster
back-ups' and put his email and website in the message. Going to that
website, cypress-tech.com, we can go to the 'ebay store' page where the
apparently official ebay store of Cypress Tech is linked to. Following the
link, http://stores.ebay.com/Cypress-Technology-Inc we see that this is the
same seller as the original gold scrap ebay link,
https://www.ebay.com/itm/382505855460

Here is the list of reasonable possibilities that I can think of:

- Somebody sent a fake email, from a fake Cypress-Tech.com, and made a fake
ebay page with the sole purpose of defaming this person (I'll admit, not
entirely out of the realm of possibility if there were someone with a
grudge against him)

- Jesse does not maintain full exclusive control over the ebay store, and
one of his coworkers/employees have posted the gold scrap auctions without
his knowledge (I suppose this is possible)

- You've been lied to, or otherwise you made a mistake

Please correct me if I've made an error somewhere, and please don't take
this as a personal attack of any kind. I don't have any interest in this
matter really, but my BS detector was showing a reading, so I checked it
out a little deeper and that's what I found.

Best Regards,
Joe Zatarski

Data Systems Design DSD-4140 microcode PROMs

[Joseph Zatarski via cctalk]

Hello Everyone,


We found a PDP-11 QBUS card cage with a KDF11 and some other cards (RAM, 
ROM, some basic peripherals) which included a DSD-4140 card. 
Unfortunately, the DSD-4140 is missing one of it's microcode PROMs for 
some reason.



Does anyone else have one of these cards? It'd be really helpful if we 
could get some dumps of the 4 microcode PROMs so we can compare what we 
have and look into replacing what we don't have with an adapted modern 
part. (and if anyone goes to the trouble to read the 4 microcode PROMs, 
there's also an 82S137 that deserves to be dumped).



Here's a picture of the card in question: https://i.imgur.com/tzYjPYF.jpg


Regards,

Joe Zatarski

Re: Beckman DU600 MC68332 SBC (Was: HP CPU32 Emulation Adapter)

[Joseph Zatarski via cctalk]

That board came out of the instrument it belongs to (a Beckman DU600), 
which came out of the trash here. I've put quite a bit of time into 
reverse engineering the hardware as well as porting and writing some 
software. The most recent thing I've done with it is port an old version 
of minix.



https://youtu.be/s8kXpKJqy9U


https://imgur.com/a/JGS0X


On 09/21/2018 05:04 AM, Carlo Pisani wrote:

But, I've got one of these:
https://hackaday.io/project/6150-beckman-du600-reverse-engineering

hi
where did you find it?
here I have an EVS board, by motorola :P

HP CPU32 Emulation Adapter

[Joseph Zatarski via cctalk]

Hello everyone,


This is a longshot, but I was wondering if anybody has or knows someone
who might have a very specific HP part. It's the HP E3417A, a PQFP132
PGA interposer for some HP emulation/debug preprocessor stuff for CPU32
(among other 132 pin QFP).

Basically I came into an HP logic analyzer with a full preprocessor
setup for 160 pin QFP CPU32 procs. 16700A with emulator option, E2480A
preprocessor for CPU32, and a 160 pin QFP elastomeric socket with the
flex cable.

But, I've got one of these:
https://hackaday.io/project/6150-beckman-du600-reverse-engineering

That board has a 132 pin QFP, but with the right adapter, it should be
supported by the hardware I've got here.

Thanks,
Joe Zatarski

Re: Landfill?

[Joseph Zatarski via cctalk]

I also have a few boxes of old books and IBM slip-case manuals (techRef,
etc.), 3" and 3.25" drives, at least one bundle of hard sector disks, half
a dozen HP "pinch to close shutter" 3.5" disks, a Shugart 3.5" from before
they HAD shutters, a Sony 600RPM 3.5" (if I can find it), . . .
('course all of THAT will look like Generic PC Crap to people unfamiliar,
. . . )

I'm not healthy enough (last year I had another TURP surgery, instead of
VCF, eclipse, and Concourse D'Lemons) to dig out the 8" drives, or to
really load up, so, it's gonna be a much lesser quantity of what I can
manage.

--
Grumpy Ol' Fred cisin at xenosoft.com 



If you turn it up, I might be interested in getting that Sony 600 RPM drive, 
but I won't be at VCF East. I need one to replace the broken one in my HP logic 
analyzer.

Let me know price/shipping if it turns up.

Joe Zatarski

HP-UX 11.11 patches

[Joseph Zatarski via cctalk]

I think this is probably a long shot, but does anyone have patches for
HP-UX 11.11 for PA-RISC? I can't exactly buy an HP support contract just to
download patches, which is apparently my only other option since google
doesn't turn up anything.

I'm specifically looking to get PHSS_24304 installed because that fixes a
linker issue that prevents building anything with GNU G++. I think I might
be able to get around the issue if I use GNU ld, but that has it's own
issues as I understand it.

I'm new to HP-UX, so if you need more info just ask.

Joe

Bitsavers size

[Joseph Zatarski via cctalk]

>Just how big is the server?
>As a wish list, I've always wanted that as a offline set of DVD's
>for the common stuff.
>Ben.

But wouldn't a nice tape be a much more appropriate distribution
medium? I've got an LTO-3 drive here, and that's 400GB/tape. It'd only
take one tape to hold bitsavers. :)

Timesharing/multiuser BASIC for MC68K

[Joseph Zatarski via cctalk]

I just wanted to share a little project I've been working on, it's an
adaptation of Lee Davison's EhBASIC to become a timeshared multiuser BASIC.
There's still a bit more to do, but here's a video of it in operation:
https://youtu.be/SAJpHiBPMcQ

In that video, it's only running 3 sessions (I had no convenient 4th
terminal) but it's capable of running 4. It is a very very simple
preemptive multitasking 'kernel' providing I/O services and performing
periodic context switches for the instances of the interpreter. It only
runs a fixed number of processes, and all the process memory is statically
allocated. EhBASIC lends itself well to this, the code is position
independent by design, and the memory range is passed in. Everything is
dereferenced relative to the 'start of memory' pointer. This means no need
for an MMU or relocation.

I'm hoping to set this up at VCF MW in September, running 4 terminals.

More info on the hardware I'm using is available here:
https://hackaday.io/project/6150-beckman-du600-reverse-engineering

Pictures:
https://www.dropbox.com/sh/uw6cjqigk2sdwdy/AAAwP55aelyzrYeP1HVUDdMqa?dl=0

And another software project I'm working on as well (a ROM monitor program):
https://github.com/jzatarski/Joe-Mon