26 May
2004
26 May
'04
1:09 p.m.
On May 26, 21:19, Fred N. van Kempen wrote:
On Wed, 26 May 2004, wai-sun chia wrote:
> So I'll need boot ROMs which supports RA and
DU disks. Because my
11/04 used to be an embedded CNC drill controller, in the place
of the
regular CPU diagnostic is has a weird proprietary program which tries
to initialize some long-gone/dead equipment which used to be connected
to the PDP.
>
> In summary, I'm willing to pay a fair/reasonable price for the
following
M9312 ROMs (unless some one has spares, then I wouldn't mind
them free of course :-)):
...
Although I assume we can all check our systems and boards and come
up with all of these, wouldnt it be much nicer (and cheaper) if you
just get the ROM contents as binary files, which you then plug into
an eprom?
Unfortunately they're small bipolar fusible-link PROMs which are hard
to get and almost as hard to find a programmer for (unless you're me or
Tony). The A9 types are 82S131 (or MMI6306, 75S171, 27S13, 93448, etc)
16-pin DIL 512-words by 4-bit wide, and the F1 types are 82S137 (or
TI24S41, MMI6353, 74S573, 27SS33, 93453, etc) 18-pin DIL 1024 words x
4-bit wide.
The idea of storing the images is a good one, however. As far as I
know you can't get these from DEC/Compaq/HP any more, so I'll host them
if anyone has images to add to the collection.
--
Pete Peter Turnbull
Network Manager
University of York