Of course, that's not the hardest way. You could also do this:
http://www.pmonta.com/calculators/hp-35/
I have a few chips that I'll need to do that to, where the ROM is
embedded and can't be read out electrically. Unfortunately the chips
are in a much finer geometry than the HP-35 chips, so i
Someone was kind enough to mail me the masked ROM out of his HP 9895
floppy drive. I've read it and mailed it back. It's an MK36000 series
24-pin 8KB masked ROM, with the same pinout as the Motorola MC68764
EPROM, so reading it with an EPROM programmer set for the Motorola
part should work fine. In
esday, September 02, 2015 3:50 PM
Subject: Re: Wanted: ROM images from HP 9895,
82901/82902, and other HP-IB disk drives
On Wed, Sep 2, 2015 at 8:00 AM, Mike Stein
wrote:
The ROMs in my 9114s are 09114-15514 REV R.
Need an image? What type/size are they?
There 27128 (16KB).
There are at le
-Topic Posts
Subject: Re: Wanted: ROM images from HP 9895, 82901/82902, and other HP-IB disk
drives
On Wed, Sep 2, 2015 at 8:00 AM, Mike Stein wrote:
> The ROMs in my 9114s are 09114-15514 REV R.
> Need an image? What type/size are they?
There 27128 (16KB).
There are at least five known ROM
On Wed, Sep 2, 2015 at 8:00 AM, Mike Stein wrote:
> The ROMs in my 9114s are 09114-15514 REV R.
> Need an image? What type/size are they?
There 27128 (16KB).
There are at least five known ROM images for the 9114A/B, and I have
images of two of them. I'm not sure whether 09114-15514 Rev R matche
>
> > I have (I hope) an 82901 somewhere. Somewhere could mean in one of the spare
> [...]
> > Do you want me to try to find it and dump the ROMs?
>
> Yes, please. If you can find it fairly easily, that will be great.
Hopefully it's in a visible pile here. I do know where my EPROM programmer
is
On Wed, Sep 2, 2015 at 8:20 AM, tony duell wrote:
> I have (I hope) an 82901 somewhere. Somewhere could mean in one of the spare
[...]
> Do you want me to try to find it and dump the ROMs?
Yes, please. If you can find it fairly easily, that will be great.
Best regards,
Eric
> If anyone has dumped the ROMs from the HP 9895 (8-inch) or 82901/82902
> (5 1/4-inch) HP-IB disk drives, which use the Amigo command set, I'd
> appreciate copies of the images, ideally along with the HP part
> numbers of the EPROMs (probably 09895-x and 82901-x).
I have (I hope) an 8290
- Original Message -
From: "Eric Smith"
Sent: Wednesday, September 02, 2015 12:38 AM
...I'd be interested in ...ROM images from the
9114A and 9114B HP-IL disk drives. I already
have one ROM image each from the 9114A and
9114B, but there were
multiple firmware versions.
Thanks!
Eric
Hi Eric,
I have a 9121 HP-IB disk drive I can try to extract the ROM from
(using an old EEPROM programmer I have).
Regards,
Vlad.
On 2 September 2015 at 00:38, Eric Smith wrote:
> If anyone has dumped the ROMs from the HP 9895 (8-inch) or 82901/82902
> (5 1/4-inch) HP-IB disk drives, which use
If anyone has dumped the ROMs from the HP 9895 (8-inch) or 82901/82902
(5 1/4-inch) HP-IB disk drives, which use the Amigo command set, I'd
appreciate copies of the images, ideally along with the HP part
numbers of the EPROMs (probably 09895-x and 82901-x).
For that matter, I'd be interest
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