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Omni II Logic Analyzer/Computer

Seatown

New Member
Joined
Oct 20, 2012
Messages
9
Location
AZ
I acquired a very interesting Kaypro yesterday and “Omni II Logic Analyzer/Computer” is labeled on both sides.
OmniII.jpg

Not much information about it is available on the Web. However, I did manage to locate a brief New Product intro that appeared on Oct 1983 edition of Microcomputing magazine.“A Dual-Purpose Portable---The Omni II, from OmniLogic, Inc. (Renton, WA), is designed to integrate the utility of a timing/state logic analyzer with a full-function CP/M microcomputer—all in a portable 27-pound package. “
OMINii.JPG

Since I do not have the manual or the software, I could not get pass the insert disk after booting. However, the magazine brief says that “Upon being powered-up, the Omni II does an automatic self-check of its internal circuitry. The set-up page will then appear, allowing configuration of the machine for data collection.” I assumed that the EPROM had the software to get to this point, but it did not work.
OmniII1.jpg

Obviously, I had to open it up and look inside and what I found is a Kaypro 4 with two additional boards. A logic analyzer board is mounted under the main Kaypro logic board (PC81-240A) that connects via a ribbon cable to a CPU board which plugs to the Z-80 CPU socket. There are two EPROM chips Labeled: (OMNI II /CPU 32/7-30-83) and (OMNI 2/CHAR 2/8-23-84).
OmniIIc.jpg

If you have the manual or the disks, please contact me. I will pay $$ for copies or the originals...
Cheers
 

ziggurat29

New Member
Joined
Aug 9, 2017
Messages
2
I acquired a very interesting Kaypro yesterday and “Omni II Logic Analyzer/Computer” is labeled on both sides.
...
If you have the manual or the disks, please contact me. I will pay $$ for copies or the originals...
Cheers

You may want to check out this project and contact the author, he recently restored the floppy image for one of these LogicAnalyzer-com-Kaypro. (He might also have a manual, not sure)
https://hackaday.io/project/20151-floppy-fun-backing-up-a-unique-kay-pro-disk

Good luck and have fun retrocomputing!
 

hwrdmltn

Member
Joined
Aug 15, 2013
Messages
25
Location
Boston, MA 02128
Hello Seatown;
Had you any luck locating ANY system disks? I recently became the proud owner of a Onmi II as well and wondered if you've had any luck locating the CP/M system disk that must have accompanied this machine...
I would also be interested in those...Thanks.

W1ARQ Howard
 

ldkraemer

Veteran Member
Joined
Mar 14, 2013
Messages
2,094
Location
Chaffee, MO
I've downloaded that OMNI4FIN.IMD and had a look at it. I find there is one directory entry for 0x03EMO.lap that should be
some other character to make it valid. I used "Z" as the first Character and edited the image with hexedit. Also there is a
lowercase file promtest.1 and a PROMTEST.2 file. promtest.1 will not extract with cpmtools, but if I change it to PROMTEST.1
it extracts properly.

The source files do appear to be correct.

I'll try to get the files archived and uploaded.

cpmls -f kay2 -D OMNI4FIN.RAW
Name Bytes Recs Attr update create
------------ ------ ------ ---- ----------------- -----------------
BS .LAD 8K 62
D .COM 4K 24
DEMO .LAP 8K 49
DUTIL .COM 24K 184
FF55 .LAP 8K 50
JEFF .LAD 8K 62
K2XBOOT . 8K 64
K2XCHAR . 4K 32
LA .COM 34K 264
LA .LAO 28K 224
LA1 .LAH 36K 285
LA2 .LAH 46K 358
MASMENU .COM 18K 132
MASMENU .DAT 2K 16
PAUSE .COM 2K 1
PG .COM 32K 250
PIP .COM 8K 58
POINT9 .LAD 4K 22
POLL0 .LAD 8K 62
PROG .COM 6K 34
PROMTEST. 8K 64
PROMTEST.1 4K 32
PROMTEST.2 4K 32
S1 .LAS 2K 1
STARDNLD.COM 2K 1
TEST .LAP 8K 50
Z80 .LAM 2K 11
Z80 .Z80 36K 285
ZEMO .LAP 8K 50
29 Files occupying 370K, 28K Free.

https://www.dropbox.com/s/75xpnxg9i93ya0n/OMNI4FIN.zip?dl=0

Larry
 
Last edited:

hwrdmltn

Member
Joined
Aug 15, 2013
Messages
25
Location
Boston, MA 02128
Try "X"...
I found a reference to a directory entry as "DEMO LAX" (in typical CP/M 2.2 8x3 dir format).......so I'm thinking it's a saved file from a analyzer session....just a thought
And thanks oodles for yanking these files from the .IMD, I couldn't get the ol' 386 to behave when I was trying the look the IMD over.

W1ARQ Howard
 

Esot.eric

New Member
Joined
Jan 18, 2018
Messages
4
howdy all...
the strange thought crossed my mind that the Omni4 could very possibly be identical to the II... except for being in an older Kaypro model. In which case the software I extracted from the 4 might work on the II!
Would be great to have some comparison photos of the logic analyzer board from a II. Also, some of the chip markings on my 4 are unreadable, so this might be the ticket.
As I recall i was able to cpmls using various formats, but cpmcp gave garbage in most cases... mixing up data from different files. I think the proper -f option turned out to be kpiv, despite the Omni4's use of a kaypro2x.
computer-access has been limited, but if I get a chance I could diff your extracted files with those I transferred via pip.com. Nice work, btw.
As I recall, massmenu.com is loaded immediately on boot, but it's just a menu which calls la.com. .lah files are help files, plaintext
 

Esot.eric

New Member
Joined
Jan 18, 2018
Messages
4
Howdy,
I'd be really curious to see photos of the OMNI2 logic analyzer board, to compare with that in my Omni4!
 

hwrdmltn

Member
Joined
Aug 15, 2013
Messages
25
Location
Boston, MA 02128
The board I have is VERY similar to yours, probably identical. Only problem is 90% of the chips have had the names deliberately ground off - I believe in an effort to thwart pirating (not a big deal in the eighties IMHO, but you know paranoia, it can sneak up on anybody!)
So I am bummed because I won't be able to figure out what ports do what (there are 2 8255's so that means there is at least 6 8 bit ports. I would also like to find some probes for mine or make them if I can find tech info on them. I have two Nicolet 700's that have probes, I wonder if those could be "borrowed".... thinking out loud...

W1ARQ Howard
 

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Chuck(G)

25k Member
Joined
Jan 11, 2007
Messages
38,856
Location
Pacific Northwest, USA
Wow--that's the worst case of "we don't want to tell you about any of our chips" that I've ever seen!

That also means "we don't want to you even think about repairing this--we'll be around forever, after all!"

:)
 

Esot.eric

New Member
Joined
Jan 18, 2018
Messages
4
As I recall, I documented the pods... not *extensively*, but shouldn't be hard to recreate... a 7404 and 74244, as I recall... lemme know if there's not enough info.
 

Esot.eric

New Member
Joined
Jan 18, 2018
Messages
4
Hmm, I'm pretty sure I wrote a thank you, Howard... I think you're right, the boards look identical. have you been able to try LA.com? Lacking pods, it should still run the self-test.
 
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