Connecting HP-110 to a 9122D floppy drive

[John AS (UK)]

Hi,

I have the following set-up:

HP-110 laptop (HP-IL interface)
HP 82169A HP-IL / HP-IB interface
HP 9122D floppy drive (HP-IB interface / SS-80 protocol)

This set-up works fine and allowed me to format floppies and read-write them. I think the combination of the 82169A + 9122D works the same as the 9114A/B HP-IL floppy drive.

I've also tried the HP-110+ (Portable Plus) laptop and that worked fine too. I had no luck attempting to use an Amigo floppy drive (9121D).

The 82169A has a serial number starting 2512A, the 110+ plus manual states:

"Note: If you intend to use HP-IB disk drives, the HP-IL/HP-IB interface must have a serial number greater than 2406A00000. Otherwise it will cause a bad unit error message."

I've got a friend with an HP-41 and HP-IL interface, I'll report back if this can drive the 82169A + 9122D as well.

Regards,
John

[Eric Smith]

The HP-IL module for the 41 doesn't speak either SS/80 or Amigo protocol; it only knows 82161A "Filbert" commands. The mass storage functions won't work any HP disk drives other than the 9114A/B, because those are the only ones that have the Filbert command set.

[John AS (UK)]

Quote:

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The HP-IL module for the 41 doesn't speak either SS/80 or Amigo protocol; it only knows 82161A "Filbert" commands. The mass storage functions won't work any HP disk drives other than the 9114A/B, because those are the only ones that have the Filbert command set.

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Thanks Eric, yes I understand the 9114A understands Filbert and SS/80 protocols, I didn't know the HP-41 only supports Filbert.

Can you clarify please about the HP-71 or HP-75, does this also only understand Filbert for mass storage and no other protocol?

Can the HP-86 read files from a 82161A, perhaps via a BASIC program?

(note a similar topic has been discussed before: http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv016.cgi?read=95690 )

My friend has some files on 82161A cassettes, we were trying to work out how to transfer them to a PC with the hardware we have (eg no PIL-box).

Regards,

John

Edited: 19 Oct 2009, 11:47 a.m.

[Eric Smith]

The HP-71B (with HP-IL module) and HP-75C/D also only use the Filbert command set for mass storage.

I think you could write a program for the HP-86 with I/O ROM to read 82161A tapes. You just have to address the tape drive, send the appropriate DDT command to get it to read a sector, and read the 256 bytes of binary data that come back.

[John AS (UK)]

I found another message in the Forum archive: http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv016.cgi?read=105373 which includes the comment:

"Emu41 and Emu71 emulate the Filbert protocol used on the HP82161 and HP9114, that has nothing to do with CS80 or Amigo. The HP9114 also supports SS80, for use with the HP Portable Plus for instance and SS80 may also be used in the HP-71B Data Acq ROM to access DOS formatted disks."

Interesting! Has anyone got any further info on the HP-71B Data Acquisition Pac (HP 82479A), I couldn't find the manual on-line?

I found the article in the HP Journal

http://hp41.betapersei.com/files/HP%20Journal/HP%20Journal%201986%20Mar.pdf

based on this I doubt if does allow support of SS-80 disks, but would be nice to confirm.

Regards,

John

Edited: 20 Oct 2009, 3:59 a.m.