Wanted: ROM images from HP 9895, 82901/82902, and other HP-IB disk drives
ard at p850ug1.demon.co.uk
Wed Sep 2 09:20:36 CDT 2015
> 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-xxxxx and 82901-xxxxx).
I have (I hope) an 82901 somewhere. Somewhere could mean in one of the spare
rooms here, it could mean in my storage unit (which is harder for me to get it from).
I hope it wasn't something that was 'lost' in the move.
According to the schematic I traced out, it contains a pair of 2K ROMs, I think
pinout as 2716. Numbers 1818-1834 and 1818-1835. The 1818-1834 is the top
of the memory space, 1818-1835 just below it (6802 processor so it reads the
reset vector from the top of its address space).
Do you want me to try to find it and dump the ROMs?
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