Products > Test Equipment
HP Logic Analyzer Inverse Assemblers
philpem:
... I can't believe that bug got out, but then again, I wrote this when I was in university ... at least ten years ago, probably more like fifteen.
Thanks for the fix. When I have a spare moment I'm going to try and get this into a Github repository... it looks like I may have lost my copy of the code, it's probably buried on a backup tape somewhere.
MarkMLl:
I'm pleasantly surprised to see that this thread's still going :-)
I've got an HP1630G which I use when I need /lots/ of pins or decent speed.
I've written an HPIB printer simulator which works nicely, details at https://github.com/MarkMLl/hp2671 (and I make no apology for my choice of development tool).
I've also written a program, so far unpublished, which queries the analyser and generates a .vcd file.
Would anybody be interested if I continued by writing a general-purpose disassembler which took a .vcd as input?
I definitely don't promise a timescale, and users with other 1630 variants or other HPIB interfaces might need to tweak my .vcd generator... which shouldn't be too difficult, the code's intentionally naive.
MarkMLl
deanclaxton:
I've just had my offer accepted on an Agilent 16902A selling here in Australia on eBay. I haven't received it yet, but it appears to be in excellent condition and includes 2 x 16750A's 16950A's and 3 E3582A Flying Lead sets.
I know these aren't the fastest (with a Pentium III etc), but there are a couple of upgrade paths available and to be honest I'll likely use it via remote desktop versus the local touch screen so hopefully it runs ok that way.
It's an upgrade to the HP 16602A I've been using to date, which I run via X11.
My plan is to try source some termination kits to suit these leads (90 pin?) and then build a new 65C02 adapter that will use the terminated connections rather than me having to go down the route of including the termination on the adapter like I did the last time.
Would anyone have any suitable termination adapters for the 16750A 16950A? 34 Channel?
Of course I need to check out the logic analyser first up and run self test on each of the 16750A's 16950A's and see what the boards are like - seems that corrosion under the stiffeners is very common.
Once it all checks out though, I'll be trying to get Phils 65C02 inverse assembler running on it to help with a new Apple ][ product I'm working on :)
EDIT : I just too another look at the listing and they are actually 16950A modules (not the 16750A's I thought) - bonus!
MarkL:
I think you meant E5382A. It was nice of the seller to include those with the unit. A used E5382A can fetch a princely sum since they are still sold by Keysight for use with their current line of logic analyzers. And because the 90-pin probing system is current, it unfortunately keeps all the 90-pin accessories significantly more expensive than the older 40-pin system. (So, getting 90-pin cards was not necessarily a bonus!)
For 90-pin termination adapters, I would try looking for E5378A/E5378B (Samtec single-ended) or E5380A/E5380B (Mictor single-ended). Both handle 32 channels of data and 2 clocks. The Samtec adapter, for some reason, can be less expensive on the used market. I have seen them for as low as US$25 ea., but not recently within the last year or so.
Good luck powering up the new unit! Before you declare victory, I'd suggest testing each input to the probe tip. I've experienced several bad E5382A probe sets where the center conductor on some of the data lines were severed, likely because someone pulled too hard on the cable. This wouldn't show up on the self-test. The 90-pin sets are a lot more delicate and more difficult to repair than the older 40-pin sets.
deanclaxton:
Ah yes- E5382A - 3 sets in the pouches. The one shown open in the eBay listing looks new/unused.
I guess the good thing is that I have slots available so if I see some 40 pin modules cheap, then I can slot them in :)
Current plan is to find 90 pin adapters though - probably just need one for now.
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