Re: DEC AXV11-C analog board

Are you triggering an A/D conversion via the CSR or external signal?  Then check the A/D done bit. See  EK-AXV11-UG-02 Chapter 4.    Jerry On 2/6/22 11:20 AM, Douglas Taylor via cctalk wrote: I have one of these and would like to use it, however it appears to only partially work.  Here is wha

Re: DEC AXV11-C analog board

cctalk wrote: Yes, I am putting 1 into the CSR to start the conversion and I do get a 200(8) indicating that the conversion is complete.  I wonder if this means the A/D chip is OK but something else, like the multiplexer chip or gain amp is fried. On 2/6/2022 12:33 PM, Jerry Weiss via cctalk wrote

Re: Using tu58fs with RT11 5.7

On 5/5/22 8:30 PM, Douglas Taylor via cctalk wrote: I wanted to try using tu58fs with a RT11 system running version 5.7 to transfer files in/out. To my surprise RT11 5.7 retired the DD: device, a DD.MAC file is there, but it is unsupported. (1) How do you compile a device driver file?  How d

Re: QIX game on PDP-11

> On Mar 28, 2017, at 12:09 PM, Ethan Dicks via cctalk > wrote: > > On Tue, Mar 28, 2017 at 12:35 PM, Henk Gooijen via cctalk > wrote: >> >> Hi PDP-11 game players 😊 >> >> I found that the famous QIX game was ported to the PDP-11 !! >> See http://imgur.com/a/gtPfh > > I don't know which PDP

Re: If C is so evil why is it so successful?

> On Apr 13, 2017, at 3:24 PM, Chuck Guzis via cctalk > wrote: > > On 04/13/2017 12:30 PM, Rich Alderson via cctalk wrote: >> From: allison Sent: Wednesday, April 12, 2017 3:18 PM >> >>> BASIC, why is that the most universal language implemented on >>> nearly every micro and many other systems

Re: If C is so evil why is it so successful?

> On Apr 13, 2017, at 9:42 PM, Chuck Guzis via cctalk > wrote: > > On 04/13/2017 05:47 PM, Jerry Weiss wrote: > >> Then my dad got transferred to Chicago and that high school had >> “access” to IITRAN. By access, that meant punching cards, and >> waiting for the teacher to load in batch and w

Re: Bitsavers size

> On Apr 21, 2017, at 12:24 PM, Rob Jarratt via cctalk > wrote: > > > >>> My back of the envelope calculation comes to approximately >>> 4 million miles of paper tape. >> >> I think you're out by a factor of 10 267*10^9 bytes, divide by 10 as >> there are >> 10 bytes to the inch on paper

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

If these are from a VAX, could they be microcode disks for a 11/780? There was a RX01 attached via a LSI-11 as console. Or they could just be disks used for data exchange. They would be in another DEC OS file format, rather than ODS2. Jerry Weiss j...@ieee.org > On May 4, 2017, at 4:41 PM

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

> On May 5, 2017, at 4:58 PM, Terry Stewart via cctalk > wrote: > >> In case not everyone noticed, but Terry's already given up on this > > Lol, true. The disks will be given back on Monday. It's no big deal. The > owners can decided what they want to do. Even if I can't read it the > disks

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

> On May 5, 2017, at 5:13 PM, Jerry Weiss wrote: > > >> On May 5, 2017, at 4:58 PM, Terry Stewart via cctalk > > wrote: >> >>> In case not everyone noticed, but Terry's already given up on this >> >> Lol, true. The disks will be given back on Monday. It's no big

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

-11 is also $. > > Either way the save command under VMS will have defaults for the device > target > and that a lookup on the Orange or Grey wall (manuals). > > Allison > > > On 05/05/2017 06:26 PM, Jerry Weiss via cctalk wrote: >>> On May 5, 2017, at 5:13 PM

Re: On Topic?: Hamvention

> On May 16, 2017, at 7:11 PM, Ben Sinclair via cctalk > wrote: > > On Tue, May 16, 2017 at 6:14 PM, Jim Brain via cctalk > wrote: > >> Is anyone going to Hamvention this weekend? >> > > I'll be there, for the first time! I don't know what to expect with the > flea market, but am hoping ther

Re: Help identifying UNIBUS PDP-11 CPU upgrade

> On Jun 28, 2017, at 2:35 PM, Josh Dersch via cctalk > wrote: > > On Wed, Jun 28, 2017 at 11:02 AM, Noel Chiappa via cctalk < > cctalk@classiccmp.org> wrote: > >>> From: Josh Dersch >> >>> I pulled the ... bootstrap boards from slot 3 ... The BOOT button >>> causes the RUN light to momentari

Re: Help identifying UNIBUS PDP-11 CPU upgrade

> On Jul 1, 2017, at 1:08 AM, Mattis Lind via cctalk > wrote: > >> Right, that's what's confusing me. I can't work out what you could possibly >> be cabling to, on the new CPU board! >> >> Those two connectors on the M7859 are used only with the 11/34, not the >> 11/04 >> (the cable from the M

Re: Help identifying UNIBUS PDP-11 CPU upgrade

> On Jul 1, 2017, at 10:59 AM, Noel Chiappa via cctalk > wrote: > >> From: Jerry Weiss > >> So it would appear the upgrade board makes provisions for both >> situations. > > I'm not sure that the two situations that the upgrade board supports are in > fact different, from its point of view. (

Re: Computer Design & Applications Inc. MDP-3B/C

> On Jul 11, 2017, at 3:40 PM, Mattis Lind via cctalk > wrote: > > This was part of a PDP-11/34 system for radiation dose measurement at a > hospital. > > Is it something general or very special purpose? > > https://i.imgur.com/rTAzl9o.jpg > https://i.imgur.com/vhPdvi7.jpg > https://i.imgur.c

Re: PDP-11: DR11-C to FPGA or 1284?

> On Aug 1, 2017, at 2:50 PM, Mattis Lind via cctalk > wrote: > > 2017-07-31 21:05 GMT+02:00 Fritz Mueller via cctalk : > >> >>> On Jul 31, 2017, at 11:30 AM, Bill Gunshannon via cctalk < >> cctalk@classiccmp.org> wrote: >>> >>> Well, I'm confused now. What do 16 bit paralel and ethernet ha

Re: PDP-11: DR11-C to FPGA or 1284?

> On Aug 1, 2017, at 7:32 PM, Fritz Mueller via cctalk > wrote: > > On 08/01/2017 05:27 PM, Jerry Weiss wrote: >> If you install the DELUA, don’t forget there is TCP/IP support for RT11 from >> Alan Baldwin at http://shop-pdp.net/rthtml/tcpip.htm. > > Hi Jerry -- I had seen the RT-11 TCP/IP s

Re: WTB: RX02 Floppy Disks

> On Aug 3, 2017, at 4:28 PM, Ulrich Tagge via cctalk > wrote: > > Hi All, > All my 8" SSDD /SSSDdisks are non formatted, which was the reason for my > initial troubles. > Nevertheless, my IBM System /23 (Type 5324) can format disks in three > different formats: > > _1. IBM System /23 Format_

Re: WTB: RX02 Floppy Disks

> On Aug 4, 2017, at 1:09 PM, Ulrich Tagge via cctalk > wrote: > > Hi Jerry, >> You’ve made pretty good progress. > Yes with the right input and help this can happen. ;-) > And all the help is much appreciated! Glad to share. >> >> If you haven’t already, Google for and look at the manual fo

Re: PDP-11/84 Bootstrap for TSV05 (Dilog DU142)

> On Aug 9, 2017, at 1:58 PM, Ulrich Tagge via cctalk > wrote: > > Hi All, > I have some trouble to get the Bootstrap for an Dilog DU142 (TS11) Controller > running on my PDP-11/84. > The bootstrap on page 3-2 of the following documentation was used: > http://bitsavers.informatik.uni-stuttgart

Re: RX02 *.DSK convert to PDP11GUI Image format

> On Aug 13, 2017, at 11:00 AM, Ulrich Tagge via cctalk > wrote: > > Hi all, > > maybe someone can help. > I would like to install TCP/IP on my RT-11 system. > After a short search I have found the following, which I would use: > http://www.classiccmp.org/PDP-11/RT-11/freeware/decus11/110939/

Re: RX02 *.DSK convert to PDP11GUI Image format

> On Aug 13, 2017, at 12:59 PM, Ulrich Tagge wrote: > > Hi Jerry, > > I have tried with PDP11GUI, but the first message says "The image contains > only 505856 bytes, but disk has 512512 bytes". > I have written some disks, and have ignored this message, but none of them is > readable under RT

Re: RX02 *.DSK convert to PDP11GUI Image format

> On Aug 14, 2017, at 11:49 PM, Glen Slick via cctalk > wrote: > > On Sun, Aug 13, 2017 at 9:00 AM, Ulrich Tagge via cctalk > wrote: >> Hi all, >> >> maybe someone can help. >> I would like to install TCP/IP on my RT-11 system. >> After a short search I have found the following, which I would

Re: RX02 *.DSK convert to PDP11GUI Image format

> On Aug 15, 2017, at 2:33 PM, Don North wrote: > > On 8/15/2017 2:10 AM, Jerry Weiss via cctalk wrote: >>> ... >> >> As far as the DSK format, the files from at Alan’s site are logical >> disk images. Logical block 0,1,2,3 from from a DY sized volume s

Re: Champaign, IL to Iowa City, Iowa and back trip

> On Aug 19, 2017, at 11:08 AM, Jon Elson via cctalk > wrote: > > On 08/19/2017 10:03 AM, Tony Aiuto via cctalk wrote: >> A well priced PDP8 just went on sale in Iowa. I can't get it back from >> Champaign to NYC, but someone else might be able to snatch it. >> http://www.ebay.com/itm/Digital-E

Re: DEC ll/03 in 22 bit backplane

> On Aug 29, 2017, at 9:52 PM, Douglas Taylor via cctalk > wrote: > > I have a BA11-M box with a backplane that I am sure has been upgraded to be > 22 bit addressing. > > When I got this box it had an 11/23 Dual width Cpu, MXV11-AC with custom boot > ROMs and a 256KB MSV11-P memory board. T

Re: DEC ll/03 in 22 bit backplane

> On Aug 30, 2017, at 4:53 AM, Pete Turnbull via cctalk > wrote: > > On 30/08/2017 05:29, Douglas Taylor via cctalk wrote: >> I'll send along a picture of the rear of the back plane. I'm getting >> the impression I can't do what I want with the old cpu cards, M7270 >> and M7264. >> I had really

Re: DEC ll/03 in 22 bit backplane

> On Aug 30, 2017, at 8:04 AM, Jerry Weiss wrote: > >> >> Next you'd need some sort of bootstrap. What's in the custom EPROMs on you >> MXV11-AC might do. Or might not, depending on whether it uses any 11/23 >> (KDF-11) specific instructions or diagnostics, and includes an MSCP >> bootstra

Re: DEC ll/03 in 22 bit backplane

> On Aug 30, 2017, at 9:52 AM, Noel Chiappa via cctalk > wrote: > >> From: Jerry Weiss > >> The processor will probably halt due to non-existent memory address. > > No, it'll take a NXM trap (through 4); what happens then depends on what the > trap handler is set to - if anything. > >> Howev

Re: RX02 Emulator

> On Sep 1, 2017, at 10:41 AM, Douglas Taylor via cctech > wrote: > > In my other post I asked about DEC 11/2 and 11/03 cpus and 18/22 bit > backplanes. I am still interested in this but I am considering what type of > disk to run from. > > I ran into a rx02_emulator on github and looks qui

Re: QDSS qbus VCB02 8-plane video

> On Sep 3, 2017, at 7:56 PM, Charles Dickman via cctalk > wrote: > > I found that I have a board set for a VCB02. My research says it will > work in either Q CD or Q Q slots of a qbus backplane. True? > > I have no cabinet kit. Is it documented anywhere? The closest I could > find are some ha

Re: M8195 SLU died while in use

> On Sep 25, 2017, at 8:37 AM, Noel Chiappa via cctalk > wrote: > >> From: Aaron Jackson > >> a PDP-11/73, M8192 CPU, two M8067 RAM, M7195 ... While playing in ODT, >> the console completely stopped responding. >> ... >> The CPU shows 1000, which I believe is fine, and means it's in ODT. The >

Re: Strange grounding problem

> On Sep 27, 2017, at 8:14 PM, Charles Dickman via cctalk > wrote: > > On Wed, Sep 27, 2017 at 8:23 PM, Adrian Graham via cctalk > wrote: > >> Schematic for the circuits is here - >> http://www.binarydinosaurs.co.uk/newbrainPowerupCircuits.png >>

Re: The origin of SCSI [WAS:RE: The origin of the phrases ATA and IDE ]

The DK Driver for VMS versions around 5.x definitely had a problem with non-DEC disks. 6.X and greater were slightly more forgiving. The specifics are summarized in a note from Ralph Weber in https://groups.google.com/forum/#!search/SCSI$20Mode$20Page$20Requirements$20$20axp/comp.os.vms/RAaUpP_

Re: Diablo 31 air filters / plugs ?

> On Oct 7, 2017, at 12:55 PM, jos via cctalk wrote: > > > Looks like another computer will be joining the stable shortly, containing a > Diablo 31 drive. > > From the manual it looks that it does not need heads to be locked down for > transport, so I should be save there. > > But since i w

Re: Diablo 31 air filters / plugs ?

> On Oct 7, 2017, at 5:00 PM, Al Kossow via cctalk > wrote: > > On 10/7/17 1:31 PM, Jerry Weiss via cctalk wrote: > >> There wasn’t a head lock. > yes, there is. > > It is a 'L' shaped bracket that screws onto the top of the actuator. > Details in th

Re: RL02 Spinup fails

> On Nov 11, 2017, at 10:58 AM, Aaron Jackson via cctalk > wrote: > > ……... > The RL02 technical manual says to figure out why a drive error occurred, > I can execute a get status command (?) and then perform an MPR read > (?). So while I don't know how to do that, the error could be one of the

Re: RL02 Spinup fails

> On Nov 11, 2017, at 2:42 PM, Aaron Jackson wrote: > >> Aaron, >> >> Do not underestimate the need for termination, even with a very short >> external cable. >> When you factor in the internal cables runs, crosstalk or signal >> reflections which interfere >> with operation may still be pres

Re: VAX Q-bus identical to PDP-11 Q-bus?

The metal face on the Q-Bus cards was there as part of the solution to meet FCC (or equivalent) regulations to reduce electrical interference to radio receivers and other devices. If you can physically fit it into a older Qbus backplane and sort out the cabling it should work provided you have

Re: VAX Q-bus identical to PDP-11 Q-bus?

> On Dec 7, 2017, at 1:22 PM, allison via cctalk wrote: > ….. > > As such PDP11 and VAX support is there unless the OS in non-DEC in > origin and even then if the > time frame made it a marketing requirement the third party OS vendor had it. > > An example is a RD54 on a Qbus PDP-11 running RT1

Re: RX02 Difficulties

> On Dec 8, 2017, at 12:53 PM, Aaron Jackson via cctalk > wrote: > >> On Fri, Dec 8, 2017 at 3:03 PM, Aaron Jackson >> wrote: >>> >>> Manual says it should be S1=off, S2=on for RX211 and RXV21 >> >> In the photo, I think S1 is on and S2 is off. Check them with an >> ohmmeter if in doubt! >>

Re: RX02 Difficulties

On Dec 8, 2017, at 5:17 PM, Aaron Jackson wrote: > >>> On Dec 8, 2017, at 12:53 PM, Aaron Jackson via cctalk >>> wrote: >>> On Fri, Dec 8, 2017 at 3:03 PM, Aaron Jackson wrote: > > Manual says it should be S1=off, S2=on for RX211 and RXV21 In the photo, I think

Re: Revive 11/34

On Dec 8, 2017, at 2:25 PM, John Welch via cctech wrote: > > I am reviving an 11/34. Cards are: > > Back/Fans [M8266] Front of machine where keypad is. > > [M8265] > > [M9312] [M7859] > > [M7762] > > [OPEN] [M7860] > >

Re: Revive 11/34

> On 12/8/2017 3:50 PM, Jerry Weiss wrote: >> On Dec 8, 2017, at 2:25 PM, John Welch via cctech >> wrote: >> >>> I am reviving an 11/34. Cards are: >>> >>> Back/Fans [M8266] Front of machine where keypad is. >>> [M8265] >>> [M9312] [M7859] >>> [M77

Re: Re; Revive 11/34

> On Dec 9, 2017, at 8:23 AM, Noel Chiappa via cctalk > wrote: > > >> From: Jerry Weiss > > And the same for Jerry... > >> It won't seat evenly if reversed. At least that is what my scraped >> knuckles remember. > > Nope, they go in quite fine the wrong way around; I just checked. > > Mak

Re: RX02 Difficulties

> On Dec 9, 2017, at 1:25 PM, Aaron Jackson wrote: > > Thanks Jerry. That was very helpful. Found a stray piece of metal lying > across the board next to an AND gate, which is slightly > disconcerting. Possibly a stray wire clipping. Both drives pass the > diagnostics. > > It's strange though, i

Re: 11/04 Project

According to the documentation EK-M9312-TM-002 M9312 Bootstrap-Terminator Module Technical Manual there are two addresses to use for the Console Emulator. 165020 (765020) for Console with Diagnostics SW 1 and 7 on 165144 (765144) for Console w/o Diagnostics SW 1,5,6,9 on The switch settings

Re: RX02 Difficulties

Glad to hear that you cleared that up. For the other floppies. 1) DUMP/TERM/RAD50/END:0 DY1: If you share the listing that will give us some hints as to the OS on the floppies. 2) DIR/BAD DY1: will do a bad block scan to see if can read all of the blocks on the media. It do

Re: RX02 Difficulties

> On Dec 16, 2017, at 7:59 PM, Chuck Guzis via cctalk > wrote: > > On 12/16/2017 05:21 PM, Fred Cisin via cctalk wrote: > >> So, some of us do not trust the labels on disks. > I don’t trust the labels on my floppies. Especially those with with my handwriting.

[cctalk] Re: How to shutdown RT11?

I make sure that any disk squeeze is complete and other programs are quiescence. Then I just halt the processor or emulator.  Jerry On 3/22/24 8:23 AM, Paul Koning via cctalk wrote: On Mar 21, 2024, at 9:35 PM, W2HX via cctalk wrote: Ok, Bill. Still feels strange. No need to park the HD h

[cctalk] Re: Last Buy notification for Z80 (Z84C00 Product line)

While intention might have been to last XX years, I am becoming increasingly pessimistic about longevity of most electronic devices. A crystal radio with an open air capacitor seems like the only good bet. Between electrolytic capacitor aging challenges, discrete and integrated circuit hermetic fa

Hitachi at 1964 Worlds Fair - Was Re: 1968 Hitachi HIDIC 100 Mini Computer

On 11/23/18 10:45 AM, Bill Degnan via cctalk wrote: Sales Brochure scanned https://www.vintagecomputer.net/browse_thread.cfm?id=587 Bill One of my earliest computer "game" memories, was at the Hitachi exhibit from the 1964 New York Worlds Fair. I remember a small single capsule that had a C

Re: seagate 801-> Q-bus interface

On 12/8/18 3:48 PM, Paul Anderson via cctalk wrote: Does anyone know who made a controller for a Seagate 800 or 801 floppy that will plug into the Q-bus? Model numbers wound be nice to. Thanks, Paul Dilog DQ419 Sigma SDC RXV31 Jerry

Re: PDP-11/45 RSTS/E boot problem

On 1/5/19 2:58 PM, Fritz Mueller via cctalk wrote: On Jan 5, 2019, at 8:07 AM, Noel Chiappa via cctalk wrote: From: Fritz Mueller All the CPU, FPU, KT11, KW11, and RK11 MAINDECS are passing just fine. Don't forget Vonada Maxim #12: "Diagnostics are highly efficient in finding solved proble

Re: uc04 + scsi2sd ?

Hi Jake, I don't have a UC04, but its manual states its  Peripheral Interface is SCSI single ended.  The pinout is just like the UC07, except for terminator power.     Jerry On 1/5/19 4:46 PM, Jacob Ritorto via cctalk wrote: Hey all, Anyone know whether the Emulex UC04 works with the sd2

Re: PDP-11/45 RSTS/E boot problem

On 1/5/19 11:17 PM, Tony Duell via cctalk wrote: On Sun, Jan 6, 2019 at 12:45 AM Fritz Mueller via cctalk wrote: • Try using the drive on the other bus if RSTS can be booted of from DK4. Easy enough experiment to try; would need to re-jumper the G740 disk selection flip chip in the RK

Re: PDP-11 Memory

On 1/9/19 12:49 PM, Bill Gunshannon via cctalk wrote: And then I have two non-DEC module that are unlikely to have any documentation still floating around for. Camintonn CMV-1000 -- As funny as it sounds, this one looks more like a DEC MSV11-QA

Re: PDP-11 Memory

On 1/11/19 11:28 AM, Bill Gunshannon via cctalk wrote: Well, it has been so long since I had to put together an entire system I forgot what fun it can be. With almost documentation I was able to configure 4 1meg memory modules and I tested them all in my 11/23+ box. KDJ11-B with 4 different (b

Re: PDP-11 Memory

On 1/12/19 11:31 AM, Bill Gunshannon via cctalk wrote: On 1/12/19 9:20 AM, Bill Gunshannon via cctalk wrote: Well, the problem is definitely bus grant as with just two memory cards in the machine I put the disk controller in and it does not show up in the Map. The only problem with this is the

Re: PDP-11 Memory

On 1/12/19 11:39 AM, Bill Gunshannon via cctalk wrote: On 1/12/19 12:29 PM, Pete Turnbull via cctalk wrote: On 12/01/2019 01:24, Zane Healy via cctalk wrote: I’m pretty sure you could get the /23+, /53, /73, /83, and /93 in either a BA23 or a BA123.  I have an actual badged BA23 pedestal for m

Re: advice / suggestion wanted PDP 11/40 only boots XXDP, not RT11

My recollection is that XXDP tries not to use Interrupts or DMA, unless it has to. I would check out those areas first for problems if it hangs in RT-11. Jerry On 1/31/19 2:26 PM, Bill Degnan via cctech wrote: My PDP 11/40 suddenly lost it's ability to boot RL02 disks except the XXDP disk.

Re: TU-58 support under Unix

My speculation would be that TU58 did not add anything of value or convenience to these systems. I used Ultrix-11, V7M, Venix in this era.  My recollection is that in most cases to build these systems and patch them, you needed regular access  to 800/1600 BPI tape. Given this relatively standa

Re: PDP-11/45 RSTS/E boot problem

On 2/11/19 11:50 AM, Paul Koning via cctalk wrote: On Feb 11, 2019, at 11:12 AM, Jon Elson via cctalk wrote: On 02/11/2019 07:04 AM, Noel Chiappa via cctalk wrote: A look at the RK11 registers after the swap-out showed an anomaly; something about the extended memory address bits? (Maybe a mul

Re: PDP-11/45 RSTS/E boot problem

On 2/11/19 12:31 PM, Noel Chiappa via cctalk wrote: > From: Jerry Weiss > Though not a disk controller, the DEC DR11-B/DA11-B would not cross 64K > boundaries. Interesting! What's odd is that the DR11-B uses the Bus Interface card (M7219) from the RC11 controller, and that _can_

Re: PDP-11/45 RSTS/E boot problem

On 2/13/19 1:43 AM, Fritz Mueller via cctalk wrote: SUCCESS!! Put the M795 out on an extender, loaded 16 in RKBAR, and had a look around with a logic probe. Narrowed it down to E34 (a 7430 8-input NAND). Pulled, socketed, replaced, and off she goes! I can now successfully boot and run b

Re: PDP-11 disk image question

On 2/16/19 7:55 AM, Bill Gunshannon via cctalk wrote: So, I used SIMH to do an install of a complete OS on an RA81 disk. I would like to move this to a real disk and try it on a real PDP-11. Is there a way to do this using dd on a BSD machine? I tried but it created a non bootable system. We

Re: PDP-11 disk image question

On 2/20/19 1:25 PM, Glen Slick via cctalk wrote: On Mon, Feb 18, 2019 at 2:24 PM Bill Gunshannon via cctalk wrote: Theoretically, the SIMH emulated RA81 and the CMD emulated real disk RA81 should be the same size because they are both supposed to be RA81's. I spent the time to get set up and v

Re: SCSI2SD: Is it worth a try?

The system I use (OSX) to mange the SCSI2SD cards configuration and firmware doesn't have a SCSI.  I'd think of it more as a "nice to have" than a requirement.  The V6 cards allow data exchange via USB2. If you have the appropriate images, you can just DD the data directly to the microSD cards

Re: PDP-11/93 and PMI Memory

The second memory boards CSR should be viable in ODT. The toggle switch internal contacts may be tarnished with age. Cycle each switch, that is used in the on position, multiple times and see if the CSR appears. Try another CSR if necessary to confirm the memory board is responsive to Q-bus re

Re: SIMH question

On 4/24/19 10:14 AM, Paul Koning via cctalk wrote: On Apr 24, 2019, at 11:05 AM, Noel Chiappa via cctalk wrote: From: Glen Slick when I wanted to assemble some code with the RT-11 assembler but wanted to edit the source code elsewhere and then transfer the code into a SIMH disk image. Some

Re: HP/UX 8 and hosts vs DNS

From https://docstore.mik.ua/orelly/networking_2ndEd/dns/ch06_04.htm Before HP-UX 10.10, you could only use nsswitch.conf to configure the order of resolution for the hosts source. From 10.10 on, you can also use nsswitch.conf to configure resolution order for the services, networks, protocol

Re: HP/UX 8 and hosts vs DNS

On 5/27/19 12:31 AM, Cameron Kaiser via cctalk wrote: I'm not as adept at HP/UX before 10.20 (my first experience with the OS), but I understand 8.0 "fails over" to /etc/hosts if it has some issues with DNS. Fine, but how can I get it to switch *back*? There's no /etc/nsswitch.conf and I don't

Re: 11/93 Rebuild - SCSI HD now boots RT11

On 5/31/19 1:04 PM, Rod Smallwood via cctalk wrote: Hi     Well I now have a bootable SCSI drive on my 11/93. Its not RSTS/E (yet) but it is RT 11 and reliable. Its a bit baseline but it runs. So next up was to see if we could get the RQDX3 to co-exist with the SCSI controller. I switched

Re: Resurrecting integrated circuits by cooking them.

This method is not limited to "vintage" components. My MacBook Pro 2011 fails dues to its (famous) problem with the discrete AMD GPU connections.   A reflow restores the laptop, but inevitably I have repeat the process every few months. Depending on who you believe, the fault is with the A) po

Re: OT: Reflowing GPUs and the fruit company (was Re: Resurrecting integrated circuits by cooking them.)

On 7/28/19 8:33 PM, Jay Jaeger via cctalk wrote: On 7/28/2019 4:24 PM, Chuck Guzis via cctalk wrote: On 7/28/19 1:02 PM, Jerry Weiss via cctalk wrote: This method is not limited to "vintage" components. My MacBook Pro 2011 fails dues to its (famous) problem with the discre

Re: XXDP on PDP-11/03

There are two versions of XXDP+ V2 monitors.   The XXDPSM.SYS is needed for cpu's w/o MMU's or don't have more than 28KW.  This and XXDPXM.SYS are both on the AK6DN diagnostic image. However, only a few other programs exist on the image. In SIMH the AK6DN image does the same thing.  The halt l

Re: booting os/8

> On Mar 21, 2017, at 10:49 PM, W2HX via cctalk wrote: > > Hi folks, > > I have a PDP-8/e that I've been working on. I have completed construction of > AK6DN's RX01/02 emulator. I got to the step tonight where I was trying to > boot an OS/8 disk image and nothing was happening. I realized tha

Re: Looking for schematics of QBUS 32KW memory module.

On 9/8/19 3:20 PM, Noel Chiappa via cctalk wrote: > From: Mister PDP > listed back there were numerous bad addresses all over memory. > ... > I cannot find schematics for any of the boards . With the completed chart in hand, given a failing word (address and bad data),

Re: Looking for schematics of QBUS 32KW memory module.

On 9/8/19 4:21 PM, Mister PDP via cctalk wrote: I guess I should have been a little more specific about the memory issues I was having when I made this post. For the most part these issues seem to be scattered all about memory. Also, while the XXDP I have been running has been catching more or le

Re: AED WINC08

On 11/11/19 12:27 AM, Eric Moore via cctech wrote: Hello, I have a working AED WINC08 drive, which is a winchester drive emulated to look like an RL02, along with the qbus controller card. https://archive.org/details/bitsavers_aedbrochurJan82_2107642/page/n1 The winchester drive itself is a fuj

Re: Previous message: Wire list for the RKV11-D Qbus RK05 controller backplane anywhere?

On 2/12/20 11:28 AM, Noel Chiappa via cctalk wrote: > From: Jay Jaeger > Yeah, info does seem to be scarce. Not even in my LEVAX fiche set. My fiche set has the Technical Manual, and also (in the wirelist section) the wirelist. Not sure how to get it to you, though. I stuck it in

Re: DEC QBUS Backplanes

We had a few third party backplanes arranged like this.  This allowed them to put a small MFM hard drive or 8 inch floppy in empty  area next to the 4x2 (2x4?) slots of rack-mount 3U or 4U sized unit.  I don't recall any that were a mix of A-B, C-D.  Ours were A-B, A-B.     Jerry On 4/17/20 8

Re: pdp11/84 PMI memory: What is the problem with Q bus?

On 4/19/20 2:29 PM, Chris Zach via cctalk wrote: So I picked up an 11/84 CPU, 3mb of memory, and a 11/84 Unibus card on Ebay. Goal is to speed up my fastest 11 here For boot time, the diagnostics run in 13 seconds (from when it starts to prompt) on the 11/73 board I have and 13 seconds on the

Re: pdp11/84 PMI memory: What is the problem with Q bus?

Sorry about the uNOTE confusion...  I was focused and just used the reference from the OEM version.  I was aware but had mentally excluded the older Microcomputer Products Group/Components Group version. If you look at the Memory Comparison table in this OEM uNOTE, it only lists Block Mode for

Re: Got the RX01's running and TSX

I have run TSX+ since the early 80's.    I developed a few handlers to do graphics on a Peritek VRG-Q  and also for data acquisition. Nothing like like an  J-11, 4Mb and a hard disk to make a excellent personal workstation back then.   RXV21's were not a problem as TSX+ (>v6 I think) could aut

Re: RK11-D "diskless" test ZRKJE0???

On 7/9/20 7:02 PM, Robert Armstrong via cctech wrote:   I have an 11/04 with an RK11-D.  I have a couple of RK05s, but I wanted to test the controller before I start working on the drives.  The PDP11 Diagnostic Handbook says that ZRKJ?? "checks only the drive-independent logic of the RK11 contr

Re: ID board Dilog SU723A

> On Jan 8, 2018, at 7:17 PM, John Welch via cctech > wrote: > > Thanks! I did some searching but all The Google could find were a few > re-sellers that had the board but no info. The 'feet' of the board (the part > that plugs into the buss sockets) are labeled C, D, E, and F so it sort of

Re: ADV11-A vs. ADV11-C and 22-bit Bus

> On Jan 27, 2018, at 11:16 AM, Mark Matlock via cctech > wrote: > > I have an ADV11-A that I would like to use in a Q22 RSX11M+ system. The > ADV11-C will work in a 22-bit Bus system from what I understand but the > ADV11-A was made for 18 bit Bus systems. In the OEM Micronote book, Note 5,

Re: ADV11-A vs. ADV11-C and 22-bit Bus

> On Jan 28, 2018, at 12:23 PM, Mark Matlock via cctech > wrote: > > Jerry, Noel, > >Thanks for your feedback. Also, Noel was correct on the typos I made on > DD1, DE1, and DF1. I was copying from a scanned .pdf and some strange OCR > translation was occurring and I missed correcting tho

Re: PDP11 I/O page memory map

> On Mar 1, 2018, at 8:54 PM, Noel Chiappa via cctalk > wrote: > >> From: Charles Dickman > >> So if the I/O page is completely (all processor modes) unmapped is >> there any way to recover besides a power cycle? Does the RESET >> instruction disable the MMU? > > Interesting questions! > > T

Re: PDP11 I/O page memory map

> On Mar 2, 2018, at 9:11 AM, Paul Koning via cctalk > wrote: > > >> On Mar 2, 2018, at 8:37 AM, Noel Chiappa via cctalk >> wrote: >> >>> From: Jerry Weiss >> >>> Typically execution of the RESET instruction in a user program is >>> treated as a NOP >> >> Yeah, that's not documented in mos

Re: Looking for info on Motorola 4015 chip

> On May 12, 2018, at 1:03 PM, Noel Chiappa via cctalk > wrote: > > Hey, all, the RK11-D contoller for the PDP-11 uses Motorola 4015 MSI chips on > one of the boards (M7254), but I can't find out anything about them. Google > didn't turn anything up, and the appendix in the RK11-D Maintenance M

Re: Another DCJ11 oddity

On 7/10/18 5:01 AM, Noel Chiappa via cctalk wrote: So, if one looks up the Cache Control Register in, say, the KDJ11-A (EK-KDJ1A-UG-002), one sees (in section 1.6.2.1) that there are _three_ ways to disable the cache: bits 2, 3 ('force miss'), and 9 ('bypass cache'). Looking at the DCJ11 manual (

Re: Another DCJ11 oddity

On 7/10/18 2:38 PM, Noel Chiappa via cctalk wrote: > From: Jerry Weiss > See http://simh.trailing-edge.com/semi/j11.html for information on the > design of the J11. Thanks for that pointer; I don't think I've ever seen that - quite interesting. Alas, it didn't have the cache inf

Re: PDP-11/84 Qbus slots for memory

On 7/22/18 12:54 PM, Noel Chiappa via cctalk wrote: > From: Mark Matlock > With the 11/83 the position of the memory board ... above the CPU uses > PMI Yes, through the C-D interconnect; described in detail here: http://gunkies.org/wiki/CD_interconnect#Use_by_PMI The 'above'

Re: Fairly Extensive Singer/Friden "System Ten" Computer System for Rescue

On 8/8/18 11:39 PM, Jason T via cctalk wrote: While I'm not claiming the system, I've let Rick know that I'm close to it and willing to help facilitate a rescue of at least some of the lot. Hi, I don't have a personal interest in the system, but if you need another hand to help with the haulin

Re: MicroVAX I

On 8/14/18 5:40 PM, Josh Dersch via cctalk wrote: On 8/14/2018 2:12 PM, Ethan Dicks via cctalk wrote: On Sun, Aug 12, 2018 at 11:36 PM, robertbeauchamp33--- via cctalk wrote: My mother is moving and her spouse has a MicroVax I he bought new back in 1984 for some crazy amount. I don’t see this

Re: Advice requested on proper disposal of Seagate ST3000DM001 disk drives

On 9/21/18 1:06 PM, Fred Cisin via cctalk wrote: On Fri, 21 Sep 2018, Eric Smith via cctalk wrote: That's way too good for these *&#$ing ST3000DM001 drives, and won't provide anywhere near enough sense of satisfaction. 5) as a test suite for development of thermite  (Does Amazon sell pre-mad

Re: RT-11 DY install

On 10/17/18 1:53 PM, Don Stalkowski via cctalk wrote: I'm trying to use a simulated RX02 disk (under simh) with RT-11 and can't seem to get the DY driver to install. Here's the relevant log: sim> set ry enabled sim> att ry0 ry0.dsk RY: creating new file RY: buffering file in memory sim> c .in

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