test-drb March 2013

test-drb@ccmp.vtda.org

200 participants
326 discussions

by rampaginggreenhulk＠yahoo.com

------------------------------ On Mon, Mar 11, 2013 11:37 AM PDT Enrico Lazzerini wrote: >Hi, I received a Xerox 820-II mainboard. I've found that does not have a FDC >on board and that the 37-pin connector used to connect the floppy disk it >seems to have a bus and its own protocol to talk to an external FDC board >outside. Is there anybody who knows more and is it there a way to try to >connect and operate the drive with this mainboard? > >Regards > >Enrico I have a 16/8. I could take some pictures of the innards later in the week. Mine is different (obviously) - has 1 5 1/4" floppy drive, and a hard disk.

11 years, 4 months

Wanted: Proof of Sale, HP PA 7100LC or Motorola 88110 Sold before August 16, 1994

by michael＠almegacy.com

I will pay up to $1,000 for original documentation that shows proof of purchase of a computer system containing either a Hewlett Packard PA 7100LC microprocessor or a Motorola 88110 microprocessor that was sold in the United States of America before August 16, 1994. This applies to computer systems or to the microprocessors (PA 7100LC or Motorola 881100). Proof of sale is an original sales receipt or other original paperwork that proves that the system was purchased in the USA before 8/16/94. If you still have the original system or microprocessor, I would also be interested in purchasing it for fair market value. Known systems that used the microprocessors of interest in the timeframe of interest are listed below: Motorola 88110 Microprocessor: ? Motorola MVME197DP or MVME197SP single board computers ? Motorola 900, 900R workstations ? Harris Real Time Unix Servers: Harris Night Hawk 5000 series (5800) ? Data General AViiON AV 9500, AV8500, AV550, AV500 ? Omron Luna88K Hewlett Packard PA 7100LC processor ? 9000 E-class business servers (Models E25, E35, E45, E55) ? 9000 Series 700 Models 712/60 and 712/80i ? 9000 Models 715/64, 715/100, 725/100 ? 9000 Model 743 or model 748i ? HP 3000 Series 9X8 servers such as HP 3000 Series 918 LX, HP 3000 Series 918 RX ? HP 3000 Series 928LX ? HP 3000 Series 928RX ? HP 3000 Series 968LX ? HP 3000 Series 968RX ? HP 3000 Series 978LX ? HP 3000 Series 978RX

11 years, 4 months

PDP 11/23 advice

by Arno_1983＠gmx.de

Ian Finder <ian.finder at gmail.com> wrote: > (...) The box appears to contain a complete 11/23 boardset! > I've wanted a PDP 11 for some time, so needless to say, it would be great > to make an actual PDP 11/23 out of the boards. Ooh, how things happen. Opposite problem here - I went to collect a promised 11/23 last weekend that was surplus to a university collection, what I got was a shell with power inlet, power supply, fans and backplane, but not a single board left within. This was to become my first pdp ever, so I'd also like to complete it and have it running... (Shipping the case would have been a problem anyway as I'm located in Germany). > I'd also need a disk at some point, but for now that's out of scope. Included in my haul were three RL01 and one RL02, the last one even including a pack. One of the '01s seems to be quite early, its white indicator/ID plug bears just the ID "0" in small type while the others have their IDs (2x "0", 1x"1") in large type and the word "READY" below, and it doesn't have the cover release access port on the right, so I don't even know whether there is a pack in that one too yet. Needless to say, an even larger problem to ship. (Shameless plug: I didn't get any cabling for the RLxx drives, just one terminator was included, so I'm in the market for some excess cables, perhaps a second term if I want to make them into two chains sometime, and "2" and "3" ID plugs if I want to make them into one long chain. Everything preferably from within continental Europe for ease of handling.) So long, Arno

11 years, 4 months

looking for a Sanyo MBC-775

by rampaginggreenhulk＠yahoo.com

Send me an e-mail please.

11 years, 4 months

CP/M load question

by ajp166＠verizon.net

On 03/11/2013 02:01 PM, Enrico Lazzerini wrote: > Hi at all, I'm sorry I'm not very prepared and my English is basic. > > I have a mainboard with CPU Z80 derived from the famous Ferguson Big Board 1 > (that i have working fine). It has a CPU Z80A running at 4MHz, 64KByte DRAM, > FDC 1797 with external data separator FDC9228BT. It equipped with its own > BIOS that is loaded into memory at address F800H but it not has the > operating system CP/M. > > > > If instead of his eprom i insert the firmware coming from Ferguson Bigboard > 1 (which is loaded into memory at address F000H) that has FDC 1771 it run > properly loading the operating system CP/M 2.2. I looked in my experience > and modified the CP/M loader and CBIOS to point at the entry points of the > bios at F800H, so the loader loads into memory correctly ALL the CCP, the > BDOS and CBIOS, but it not complete the boot CP/M with the prompt (the error > that comes to me is: track 2 sector 1 not found. it is an area where > normally there is no CP/M code and that it is regularly read with a simple > read command available from the firmware). This is difficult as the problem is clear that you have a FDC related hardware issue. The error occurs when CP/M starts up and attempts to "log the disk in" or generate a map of the directory. Its failing to read a valid directory likely due to the differences between 1771 and 1797 or possibly a bad sector on the media. Note the directory must be cleared (initialized) to all 0xE5. I cannot say what emulator would work best for you. I debug problems like this using a resident monitor rom and instrumented code (lots of messages). Allison > > > I ASK FOR: Anybody has any idea? Is there a Z80 emulator where I can load > the BIOS and i can try to load the operating system CP/M to see what type of > problem? > > > > Regards > > Enri > >

11 years, 4 months

PDP11/83 power up results - Thanks to members of cctalk who helped

by ddsnyder＠zoominternet.net

To all who provided kind assistance and advice. Finally had the time to properly power up some 11/83 Qbus cards. A KDJ-11B and 2 MSV1J's in a BA213 chassis, formerly a DECserver 550. The following is the power messages. ----------------------------------------------------- Testing in progress - Please wait Memory Size is 4088 K Bytes 9 Step memory test Step 1 2 3 4 5 6 7 8 9 Starting automatic boot Trying MU0 Message 14 Non existent controller, address 17774500 Commands are Help, Boot, List, Setup, Map and Test. Type a command then press the RETURN key: LIST Device Unit name numbers Source Device type DU 0-255 CPU ROM RDnn, RXnn, RC25, RAnn DL 0-3 CPU ROM RL01, RL02 DX 0-1 CPU ROM RX01 DY 0-1 CPU ROM RX02 DD 0-1 CPU ROM TU58 DK 0-7 CPU ROM RK05 MU 0-255 CPU ROM TK50, TU81 MS 0-3 CPU ROM TK25, TS05 XH 0-1 CPU ROM DECNET ETHERNET NU 0-15 CPU ROM DECNET DUV11 NE 0-15 CPU ROM DECNET DLV11-E NF 0-15 CPU ROM DECNET DLV11-F Commands are Help, Boot, List, Setup, Map and Test. Type a command then press the RETURN key: MAP 18.000 MHz CPU Options: FPA Memory Map Starting Ending Size in CSR CSR Bus Address address K Bytes address type type 00000000 - 07777776 2048 17772100 ECC PMI 10000000 - 17757776 2040 17772104 ECC PMI Press the RETURN key when ready to continue I/O page Map Starting Ending Address address 17765000 - 17765776 CPU ROM or EEPROM 17772100 Memory CSR 17772104 Memory CSR 17772200 - 17772276 Supervisor I and D PDR/PAR's 17772300 - 17772376 Kernel I and D PDR/PAR's 17772516 MMR3 17773000 - 17773776 CPU ROM 17777520 - 17777524 BCSR, PCR, BCR/BDR 17777546 Clock CSR 17777560 - 17777566 Console SLU 17777572 - 17777576 MMR0,1,2 17777600 - 17777676 User I and D PDR/PAR's 17777744 - 17777752 MSER, CCR, MREG, Hit/Miss 17777766 CPU Error 17777772 PIRQ 17777776 PSW Commands are Help, Boot, List, Setup, Map and Test. Type a command then press the RETURN key: ------------------------------------------------------- Continuing on to the next step is providing some storage media to hold RSX11M. I have a CMD SCSI controller to start with. I suppose by the time I finish SimH will look to be the easier route, but old hardware has a bit of a class to it. Dan Snyder Butler, PA USA

11 years, 4 months

TRS-80 Model 200 memory

by dm561＠torfree.net

----- Original Message ----- Date: Tue, 5 Mar 2013 18:38:53 +1100 From: Doug Jackson <doug at doughq.com> Hi, I have recently received and repaired a TRS-80 Model 200 machine. Woot! My query is if anybody has any experience in adding extra memory - I note that it has some sockets under it for memory expansion, but the recommended devices are 24k (A ceramic carrier with 3 x 8K chips and some decoding - Has anybody had experience using 62256 or similar parts? ----- Reply: Hi Doug, The Club100 list would probably be a better place to ask; I think Steve will be able to help you out. How'd you make out with that ROM upgrade I sent you? mike

11 years, 4 months

Shipping Heavy/Large Items Via UPS (was: Re: PDP 11/23 advice)

by bobvines00＠gmail.com

> Message: 3 > Date: Mon, 11 Mar 2013 06:09:10 -0400 > From: allison <ajp166 at verizon.net> > To: General Discussion: On-Topic Posts Only <cctech at classiccmp.org> > Subject: Re: PDP 11/23 advice > Message-ID: <513DAD46.2010300 at verizon.net> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 03/10/2013 10:16 PM, David Riley wrote: >> On Mar 10, 2013, at 8:39 PM, allison wrote: >> >>>> Are chassis something that pop up from time to time? Are there multiple >>>> models that will take this board set? >>> If its Qbus it's likely a suitable candidate. >>> >>> Geography defines how easy it is to find stuff. Here in MA I tend to >>> trip on it >>> and I could not even give it away. In foreign countries not so much >>> L'll bet. >> I'll repeat my previous offer (made after you mentioned you had to >> take some BA123s to the dump): If you'll ship a BA11-M, -N or -S, >> or a BA23 or BA123, I'll pay shipping and a reasonable fee. Around >> here (Philadelphia), they are surprisingly scarce (either that, or >> I'm looking in ALL the wrong places). > Either that or I look in all the right dumpsters. > > I took the 123s to the dump. Reason is crating for shipment would be > expensive. > They weight more than I can lift easily. > > BA23s are amazingly heavy as are BA11s. > > For that reason when I have excess I've always made it clear shipping is > NOT > going to happen. They just don't go in a cardboard box via UPS. > > So happens I have a complete BA11 box with cards last used it was > operational. > However shipping if out of the question, can't pay me enough to deal > with that. > > With that I'll add this... > Over the years Ive gotten a lot of systems and parts because people got > into > the hobby and found they could not deal with the space or technical issues. > I've see a lot more go to the dumpster for the same reasons. Often the > collection they have is a lot of random hardware and really short of docs. > Without documentation your not going to get far and the internet is not > all the answer. Consider that before you start. > > > Allison UPS will ship fairly large items in their cardboard boxes, but it's *expensive*. I recently received some DECmates with their RX02s (which were still in their furniture/carts). Each 3x3x3 box weighed nearly 150 pounds. The previous owner gave them to me for the price of UPS packing & shipping them. He took them to his local UPS Store and had them do everything from that point. A friend of his helped him take the stuff to the UPS Store. The items were not crated like Allison mentioned above, but were severely bubble-wrapped. Some of it was double-boxed in addition to the bubble wrap and packing peanuts. Needless to say, the UPS driver was less than thrilled about the size & weight of the boxes -- fortunately I was there to help him unload his truck. His truck was the standard size brown truck, not a tractor/trailer like they subcontract for really large items. Bob

11 years, 4 months

Apex / Avocent Outlook EL-40DT EL80DT KVM Switch Firmware

by glen.slick＠gmail.com

Anyone have any old Apex / Avocent Outlook EL-40DT or EL80DT KVM switches around that could check to see which firmware version they have, and if they happen to have firmware version 2.0.3 (or newer) do you also have the means to dump the firmware EPROM to an binary image file? Or does anyone already have a binary image file of the 2.0.3 firmware? I can't find that anywhere on the net. It appears that Apex / Avocent might have only sold the firmware update as a replacement EPROM (as part EL-80DT-FW) and didn't make the image available for download on their website. If you have one of these KVM switches the firmware version can be displayed as shown in page 52 of this manual: ftp://ftp.avocent.com/public/product-upgrades/Outlook/EL40-80DT/OL_DT_UG.pdf -Glen

11 years, 4 months

Xerox 820-II & external FDC

by enrico.lazzerini＠email.it

Hi, I received a Xerox 820-II mainboard. I've found that does not have a FDC on board and that the 37-pin connector used to connect the floppy disk it seems to have a bus and its own protocol to talk to an external FDC board outside. Is there anybody who knows more and is it there a way to try to connect and operate the drive with this mainboard? Regards Enrico

11 years, 4 months

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test-drb March 2013