Hi Joe:
At 09:37 PM 10/13/02, you wrote:
> I'm sending a copy of this reply directly to you as well as replying on
the list so I can be sure that you get a copy.
Thanks. I subcribed to cctalk, and will dump cctech once it seems like
posts are coming through -- looks like I'll miss stuff otherwise.
> No, the 85B has more memory (32k vs 16k) than the 85 (aka 85A) but it's
standard memory and not RAMDISK memory. The E-Disk ROM MAY be able to
convert all or part of that to RAMDISK but it would leave you with no user
memory. FWIW The 128k memory cartridge is strickly for RAMDISK memory, it
can't be used for regular memory.
Ahh. Knew there was something about ramdisk in there. I actually have a
64K expansion card. I opened it up to find a second row of chips not
installed, so I suppose I could make it a 128K if ever needed.
>Also I'm pretty certain that 85B does not have the I/O and Mass Storage
ROMs built-in. The HP-85F has those built in and it looks like an 85B and
says 85B on the front but it should have a metal tag on the back that
identifies it as an 85F. The 85F were delivered as part of various HP test
systems and AFIK they were never listed separately in the HP catalogs.
That's probably why few people have heard of them and may be confusing
their capabilities with standard 85Bs. The 85F is a nice catch IMO, you
gain two ROMs and don't use up any of the ports on the back.
I have not heard of an 85F before. I was pulling my 9915A apart, and found
six ROM locations under the module card cage. I also just noticed a post
from someone about it too. There is an I/O rom and a 9915-specific rom,
and four spare locations.
> I'm sure they would, there are quite a few 9915s out there but AFIK I
have the only keyboard around. I'll see if I can find the schematic. If I
can't I guess I'll have to re-create it. But me every week or two and make
sure that I do it else I'm liable to get busy with other projects and
forget it.
Well, I have been poking around with the keyboard connector, and will post
my findings to the list. There are some locations I can't figure out, so
your assistance may still be required.
> How did your buddy manage to read the HP ROMs? With the Assembler?
I'll have to prod him to elaborate on the list -- I'm not sure if he is
subscribed yet or not.
thanks,
gil
;-----------------------------------------------------------
; vaux electronics, inc. 480-354-5556
;
http://www.vauxelectronics.com (
fax: 480-354-5558)
;-----------------------------------------------------------
Received on Mon Oct 14 2002 - 03:21:14 BST