Hi Steve, The HP86B has rom based basic so you just turn it on and start programing. It has an Electronic Disk (memory can be configured as disk - ED...
The Mass-Storage ROM is build in in the HP-86B you can use a HP9121S or D without any other ROM's inserted unlike the HP-85A the HP-85B has also the MS-Rom...
Hi Ash, I'm going to need something that is non volatile so some form of the many options of disk drive is going to be the order of the day here and it's going...
I don't know if this has been done as yet, but Bruce Lane of Bluefeather Technologies maintains an archive of old ROM data. IMO, it'd be worth getting as many...
I meant that, since Bruce maintains an archive of HP and Tek stuff already, it might be useful to provide him with S80 ROM contents, so the information is not...
Hi Steve, the HPIB printer might not be as difficult as you imagine. A lot of these printers were MX80, RX80, and FX80s with an optional HPIB interface fitted...
Many HP-85 / 86 Rom dumps are made by John Shadbolt http://www.vintagecomputers.freeserve.co.uk/hp85/ for his HP-85 super rom project. -Rik _____ Van:...
Hi Ash, 2009/10/13 ash_chook <ash_chook@...> ... Thanks for the pointers, a lot of useful information in there and so much to learn. ... I'll try to...
Is it possible to build your own ROMs from these images and somehow fit them into a ROM drawer? Steve 2009/10/13 J. Forster <jfor@...> ... -- Steve Rooke...
Hi Alan, I remember those printers and may have even had one or two with the HPIB interface go through my hands over the years. OK, that makes it interesting ...
Hi Steve, There's a few very talented members that go far back & beyond just collectors here, some have produced 3rd party programable rom draws & other types...
I don't know about the calculators, but it's routinely done for other instruments. Some of the files are Intel Hex format which goes into EPROM programmers...
I've been working in a project trying to emulate the functionality of several modules using an external microcontroller. Besides putting together a clone of...
Is not that simple as finding an EPROM with the right pinout. The expansion ROMs are a proprietary HP design that include part of the address decoding logic,...
Hi Jorge, The I/O extender diving board part has HP number 5060-5983 on it. This maybe just the PC so the whole assembly (with conector) may have a different...
Thanks for the information Ash, don't know if you saw my project page but finally I managed to put something together to extend the bus with a flat cable: ...
j_amodio wrote... ... Hmmm... maybe after you finish that project, you can start implementing a new version of the 85 CPU? Then you can just build a whole new...
Hi Ash, That's very encouraging news for me as I'm sure there will be a myriad of questions I will need answered as soon as I really get going with this ...
As I understand it with a bit of googling around, these are not just simple EPROMs and so that does not look like a way of adding ROMS to the ROM Drawer. Steve...
Hi Jorge, That sounds very interesting and it sounds like a good way to impliment this. In my case there is no need for the HP-IB interface as it's already ...
Hi again Jorge, You have confirmed my findings on this. Now, if the ROM Drawer has no logic on the board, is the EPROM Drawer similar or does it have a lot of ...
Hi Steve, let me combine the response to your last two messages. There are two different "ROM drawers" for the HP Series 80, the most common and perhaps more...
Hi Everett, don't tempt me !!! one of the crazy ideas I put on my list some time ago was like what if I take out the complete CPU board and replace it by...
j_amodio wrote... ... Apple Mac Mini... an HP-85 in a small box, with 'modern' video and USB connectors (and maybe SD memory slot). Just plug in a keyboard,...
Hi, I bought a 89050A module a few months ago. I was delighted to find that inside the case it is a 82929A Programmable ROM Module fitted with one EPROM. I've...
Hi John if that is a gpib program for control I am guessing one of two "equipment" people on the hp-agilent group might be interested in that image as well. ...