test-drb January 2005

test-drb@ccmp.vtda.org

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computer junks for shipping cost (mostly PC related)

by dvcorbin＠optonline.net

> --AUI to RJ45 converter (you need this for your vax) Not if my network is Thick Wire <grin>......

20 years, 5 months

Motorola MVME188 Documents

by phirkel＠engsoc.org

Hello! We just located an old Motorola VME "minicomputer" with an MVME188 single board computer. Being a real vintage computing enthusiast, I decided to try to get the thing working, running OpenBSD. However, before I can do that, I need to reprogram the NVRAM in it. I figure if there were some documentation on how to do this, and how to actually use the machine someone here might have it! Any information on the board, the MVME332/333/376/328 would be much appreciated. Cheers. Phil

20 years, 5 months

PC Adaptec SCSI BIOS format option?

by julesrichardsonuk＠yahoo.co.uk

Stupid question, but does anyone know if the SCSI BIOS format utility on Adaptec 29160 or 2940 cards does bad block checking and reassignment? I've got a 1GB Fujitsu SCSI drive here that has one dodgy block right in the middle of the disk (according to the Linux badblocks util, which still has a couple of passes to run). Unfortunately I want the disk for my Tektronix, and I think bad block mapping under Linux is only done at the filesystem level, rather than Linux being able to low-level format the drive and map blocks out that way. I'm a bit wary of the Adaptec BIOS utility - hopefully it won't trash the drive... cheers Jules

20 years, 5 months

Sritek coprocessor boards

by mskavuru＠hotmail.com

hi, I designed many of the Sritek boards. You may contact me for some assistance. Madhav S. Kavuru, PhD (mskavuru(a)hotmail.com) _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today - it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

20 years, 5 months

Data I/O progress... another question

by jwest＠classiccmp.org

My Data I/O 29B seems much more happy. All tin contacts cleaned with deoxit and all gold contacts cleaned with progold. Reseated all the chips (some were loose) and it appears to work fine for reading anyway. I'll check the power supply and calibration then try to program a chip. My current issue du jour is with Promlink. I can use version 3.4 just fine. I want to use version 6.10 though, MUCH easier on the eyes. However, any time I try 6.10 (with the high speed cpu patch), it chokes on "error sending Device Identification enable/disable command, is this a 29B unipak?" I thought my unipak was a model 2. It's not, it's just a straight unipak. I believe the device id feature is present on unipak 2 and 2b, and not present in just a unipak. From what I can tell, promlink v6.10 insists that the device identification feature be turned on. There is a setting to disable device ID checking in promlink, but either that setting doesn't work at all, or, it tries to send a disable device id command to the 29B, which won't understand it with a unipak, hence the error. Any known way around this? My 29B is firmware v 06 if that helps. Thanks! Jay West

20 years, 5 months

update: UTek (V) filesystems and boot blocks

by brad＠heeltoe.com

Jules Richardson wrote: > >Looking at the raw disk image I've saved, I've worked out where the >partition table is within the image (it's at offset 0x280). Most of the >stuff preceding it is zeros, except for a few flags and one place that >seems to be total size of the disk in blocks *including partition table >data*. If you have a saved image you should be able to try and mount it using a 'loopback' file system on linux. No doubt that's what you tried. did you try any of the bsd parition programs, liked parted? who knows. All I remember is that sometimes we had to boot from a floppy and humm... that ran some sort of fsck? it's been a while. We never replaced a hard disk or tried to fool with one. I'd guess I'd be suprised if the file system was anything other than system 5 ufs. As I recall those systems were pretty vanilla unix wise. I don't think they had any bsd-isms in them (but I may be wrong). it might be interesting to hack up a copy of an old sys v fsck and open the image in read-only mode. that way you could fool around with various offsets and try to find the super block. once you know where the partition starts, and assuming you did a block copy under unix (so the blocks are in the right order), you might be able to grab an old copy of "sash" or something like that and get it to read the file system. at least then you could "ls". just some random notions. In the end, I think I'd write a program to transform the image into a new image which had a modern partition map pointing to the super block and then get linux to mount it. easy for me to say :-) -brad

20 years, 5 months

Free LocalTalk RJ-11 connector

by lion＠apocalypse.org

I have an Apple LocalTalk RJ-11 Connector DIN-8 M1657Z/A with manual for anyone who wants it. I'm sure some Apple collectors out there could use one of these. US only please -- I don't want to pay more for international postage. Thanks, -- Michael

20 years, 5 months

The DFWCUG Historical CPU Preservation Society

by aek＠spies.com

Pat has lost interest in DEC collecting. I spoke to him when I was down there a few months ago. Here is an exerpt from a mail msg from him. Since however, one of us, The famous John R. Wisniewski, from DEC, has passed away, and due to the economics in the present time following 911, when everyone lost so much money and the purse strings have become very tight, we are not able to continue to seek grants or raise funds for a permanent place to store and show these, so at some time in the future, the entire collection will probably be liquidated. -- I will forward his current email adr through private email to Emanuel.

20 years, 5 months

DG haul, photos

by tomj＠wps.com

http://wps.com/NOVA4/ Not very good. Will take more when I get back to town. Not annotated yet.

20 years, 5 months

MOS 6507 Tech Spec's

by eric＠brouhaha.com

> Anyone have any old technical white papers on the MOS 6507, I know its > just a slight variant of the 6502, but I would like to look over the > original technical specifications for the chip, pinouts, opcodes, > instruction set, etc... There are no specific documents on it. It's in the MCS650x data sheet. It's just a 6502 die in a smaller 28-pin DIP package with not all of the pins bonded out. Specifically, A12 through A15, RDY, /NMI, SYNC, SO, three NC pins, and one Vss pin are not available. The pinout is: /RES 1 28 Ph2 out Vss 2 27 Ph0 in Ph1 out 3 26 R/W /IRQ 4 25 D0 Vcc 5 24 D1 A0 6 23 D2 A1 7 22 D3 A2 8 21 D4 A3 9 20 D5 A4 10 19 D6 A5 11 18 D7 A6 12 17 A11 A7 13 16 A10 A8 14 15 A9 I'm looking for the Synertek 6516 data sheet, and Synertek technical notes 34 and 40. The 6516 was to be a 16-bit extension of the 6500 family, years before the 65802/65816. Synertek published a data sheet in mid 1978, but the part was never put into production.

20 years, 5 months

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test-drb January 2005