Subject: TurboROM Kaypro Update
From: Doc Shipley <doc at mdrconsult.com>
Date: Sun, 29 May 2005 01:53:41 -0500
To: General at mdrconsult.com
, "Discussion at mdrconsult.com":On-Topic and
Posts <cctalk at classiccmp.org>
Allison offered to provide a system disk made on a Kaypro 4/84 w/
turborom, but has a time-critical prior project that prevents restoring
5.25" disks to the 4/84 right now.
I had also asked on the CP/M newsgroup, and somebody there sent me a
set of teledisk images that might help. The Support and Developer SSDD
disks for a turborom'ed K-II, which are unfortunately not bootable, and
the DSDD Software Support Disk that came with the TurboROM purchased for
his own K10.
I have a Mitsubishi MF501A-352U DSDD drive (with full-height black
face-plate, no less), so I have it temporarily replacing the Kaypro's
Those are very nice drives.
And the K10 Software Support disk finally got me to
an A0> prompt!
It looks like the turborom is fairly model- and version-agnostic.
Yeehaa! turbo rom is fairly complient and also good to have.
The hard drive formatter (K10FMT.COM
) works, as do
, so I can now boot from the hard disk. :)
I'm not CP/M-savvy at all, but it looks like I have enough here to
make this a functional system.
Allison, I appreciate the encouragement and the info. I'd like to
stick a pair of 3.5" drives in, so if you do run across the DIP switch
settings for the floppy personality module, I'd like to have that. And
a system disk would still be interesting when your other work slows down.
I have them here.
Each switch pair corosponds to one drive of the possible four.
pairs are 1/2, 3/4, 5/6, 7/8.
The settings are:
off/off no drive installed (odd number switch being on, drive exists)
off/on no drive installed (even numbered switch selects 48/96tpi)
on/off 48tpi drive
on/on 96tpi drive
For a 3.5" floppy you need to select 96pi and format with the advent
formatter (not a dos formatted disk!). Also the floppy must have a
drive select header/switch that allows for 4 drive non-twist cable
select. It's possible to use newer 3.5" drives but plan on modding
the drive select right at the edge connector.
Disk notes: Two sided 96tpi 3.5 or 5.25 gets you either 720k or 781k
formatter dependant. Also 3.5" drive are being used as 720k (one
hole media) so they must be able to function as such. The 48tpi
drive get you half that. Oh, the last drive is the one (and only!)
to have terminating resistor installed/enabled.
My 4/84 has two 3.5" embedded inside (drives D: and E:) as if it were
a hard disk and one on the console front (A:) the second drive is a
usually 48tpi(teac FD55BV) for compatable ops. Having the drives
inside the case seems useless but they have media in them and are
fully loaded as a useful 1.4mb library. In the CP/M world that's
a considerable amount of space.
And finally, a question - does the Kaypro support a
serial console at
all? The VDT is OK, but it's tiny. :\
Yes it can. I believe the IObyte needs to point con: and key: to
serial port. This is very bios dependent.
Hope this helps.