HP9831 operating manual
ard at p850ug1.demon.co.uk
Fri Aug 26 19:31:52 CDT 2005
> At 04:24 PM 8/26/05, you wrote:
> >Anyway, while extracting an off-topic device, I came across a ring
> >binder that I had labelled 'HP9831 Manual' Inside were the 2 volumes of
> >user documentation for that machine -- the Operating/Programming Manual
> >and the I/O Manual.
> I have at least two other manuals for the 9831:
> BASIC Reference (09831-90010)
> System Test (09831-90031)
Sounds like between us we have the full set :-)
> >[The HP9831 has similar hardware to the 9825, but has BASIC, not HPL, in ROM]
> Yes, the ROM is removable, so you can interchange the BASIC and HPL
> ROMs on the same hardware platform.
That depends on the 9825. The later 9825s (I forget the suffix letter --
9825B or something) had no system ROM module slotted in the RHS. The ROMs
were on one of the memory boards inside, there was memory mapping logic
to allow 64K-ish of RAM _and_ all the ROMs to be present at the same
time. With those you can't stick the 9831 ROMs in.
> >anyone know if the 9877 _definietly_ connected via a 98032 as well? Even
> >better, does anyone know the wiring?
> Not sure, but the System Test manual refers to a "9877A Chapter of
> the Peripheral Control Manual." I haven't found that manual (yet).
That's what I have. It doesn't give any useful low-level information.
More information about the cctech