I think I can get the contents, if I can get a look at the ROM.
Contact me directly if it's possible to get the ROM for dumping the
contents.
Mike
On 29 Aug 2004 at 20:09, Cameron Kaiser wrote:
> > About the best I could do is to snail-mail the ROM to
> > you. -or- I'll be in San Diego tomorrow - Monday.
>
> That's a very generous offer, but there are two problems ... first I'm
> presently in San Bernardino :( and won't be back in San Diego until Sunday,
> and only Sunday at that.
>
> The bigger problem, though, is actually getting the capsule out to read it.
> I opened up my HHC-4 and dug out the NYL capsules, which I hadn't examined
> too closely before. They *seem* to be regular 24-pin EPROMs (with an NYL
> sticker conveniently covering the UV window; they're 4K TMS 2532s, for those
> interested). The problem is not the chip, which seems to be a regular old
> ROM. The problem is that the DIP legs are wrapped *around* the capsule
> carrier, and digging the DIP out is probably going to damage the chip. I
> could try wiring it into my Jason-Ranheim Promenade, but I don't see much I
> could attach the wires to on the capsule side, and soldering leads directly
> on to the DIP legs is right out because I'm very worried I would ruin this
> first example of this capsule I've ever seen!
>
> Is the BASIC ROM similarly "wrapped" on yours? If it is, perhaps there's
> another way of doing this -- some way of reading out the contents of the ROM
> using the HHC itself. If you've got the printer, maybe if we could scrabble
> some way of printing out a hex dump, assuming this BASIC is halfway sane and
> has PEEK and POKE or a moral equivalent. We'd just have to figure out where
> in memory, but this is easier than it looks because it would have to start
> on a 4K page boundary, meaning we'd only have to glance at 16 possible areas.
> If one of them has BASIC keywords, we've found it.
>
> All this to say I would be *very* antsy about damaging a *very* rare ROM
> with my relatively novice EE skills, despite the fact I want it *very* much!
>
> --
> ---------------------------------- personal: http://www.armory.com/~spectre/ --
> Cameron Kaiser, Floodgap Systems Ltd * So. Calif., USA * ckaiser_at_floodgap.com
> -- Five is a sufficiently close approximation to infinity. -- Robert Firth ----
>
Received on Sun Aug 29 2004 - 22:09:55 BST