[comp.os.cpm] Kaypro 4

a577@mindlink.UUCP (Curt Sampson) (02/10/90)

On my Kaypro 4 (1984 vintage) I have a long header (connecter) that is much
like the floppy drive header (for a ribbon cable), but right above it.  Does
anyone have any idea what this is for?  Thanks.
                                        -CJS

wieland@ea.ecn.purdue.edu (Jeffrey J Wieland) (02/12/90)

In article <1096@mindlink.UUCP> a577@mindlink.UUCP (Curt Sampson) writes:
>On my Kaypro 4 (1984 vintage) I have a long header (connecter) that is much
>like the floppy drive header (for a ribbon cable), but right above it.  Does
>anyone have any idea what this is for?  Thanks.
>                                        -CJS

It's for the SASI interface for the Kaypro 10's. The 10's used the same
motherboard.  There should be numerous empty spots on you motherboard
near the SASI connector -- those are for the logic to implement SASI.

It is possible to add these chips (soldering iron time) and then add
a hard drive, but you'll still need a Western Digital WD-1001-HDO or
WD-1001-005 controller to plug onto the SASI port.  Oh yeah, you'll
also need something called the "small circuit board", which plugs
between the SASI port and the WD board.  There is a company that 
advertises in Micro-Cornucopia that sells kits to add the SASI port,
the small circuit board, and even the WD controller.  This would
probably cost in the neighborhood of $225.  I can't remember the
name of the company, but their the same people who sell the KayPlus
ROM and they also sell QP/M from MicroCode Consulting.  

A cheaper way to add a hard drive would be to get one from Advanced
Engineering Concepts.  They even have a special version of the
Advent TurboROM that supports their disk controller (allows larger
drives and you can boot off the hard drive).
--
			    Jeff Wieland
			wieland@ecn.purdue.edu

mwilson@crash.cts.com (Marc Wilson) (02/13/90)

In article <1096@mindlink.UUCP> a577@mindlink.UUCP (Curt Sampson) writes:
>On my Kaypro 4 (1984 vintage) I have a long header (connecter) that is much
>like the floppy drive header (for a ribbon cable), but right above it.  Does
>anyone have any idea what this is for?  Thanks.
>                                        -CJS

     It's the connector for the host adapter board.  This board is a simple
little gadget that has nothing more than an LS138 and a couple of resistors
on it, plus two connectors.  One goes to the motherboard connector, the
other goes to the W{_estern Digital HD controller.

     Before you get all excited, you must also have the 81-302 BIOS ROM in
you 4-84 before you can add the HD.  You also have to have the controller.

     The host adapter is available here in San Diego for $15 from a company
called ERAC.  You can find their address/phone # in Nuts and Volts.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Marc Wilson
     ARPA: ...!crash!mwilson@nosc.mil
           ...!crash!pnet01!pro-sol!mwilson@nosc.mil
     UUCP: [ cbosgd | hp-sdd!hplabs | sdcsvax | nosc ]!crash!mwilson
     INET: mwilson@crash.CTS.COM
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

mwilson@crash.cts.com (Marc Wilson) (02/14/90)

In article <19697@ea.ecn.purdue.edu> wieland@ea.ecn.purdue.edu.UUCP (Jeffrey J Wieland) writes:
>In article <1096@mindlink.UUCP> a577@mindlink.UUCP (Curt Sampson) writes:
>>On my Kaypro 4 (1984 vintage) I have a long header (connecter) that is much
>>like the floppy drive header (for a ribbon cable), but right above it.  Does
>>anyone have any idea what this is for?  Thanks.
>>                                        -CJS
>
>It's for the SASI interface for the Kaypro 10's. The 10's used the same
>motherboard.  There should be numerous empty spots on you motherboard
>near the SASI connector -- those are for the logic to implement SASI.

     No, no, NO!  There has NEVER been a Kaypro that speaks SASI!  >
All that conector is is a parallel port ( no, it doesn't go through the
PIO ).  Actually, it's more or less just an extension of the Z80.

     Kaypro made two motherboards that support the hard drive interface.
These were the 81-180 board ( the Kaypro-10 board ), and the 81-185
board ( the 2/84-4/84-2X-Robie board ).  The 81-185 board has several
different part numbers, depending on which machin it was installed in,
whether or not it had the real-time clock installed, the modem installed,
etc.  The 81-185 board is also where the dreaded Universal ROM made it's
appearance.  Not to worry, the same board can also run the nornal 81-302
ROM.

     From part # 1484-F, Kaypro Technical Manual, September 1985:

Model Name	CP/M version	Mainboard	ROM revision

2/84		2.2g		81-294		81-292A
4/84		2.2g		81-184/85	81-292A
4/84+88		2.2g		81-184/85	81-292A
2X		2.2g		81-294		81-292A
		2.2h
4X		2.2g		81-297		81-326E
		2.2h
Robie		2.2g		81-296		81-478A
		2.2h
10		2.2g		81-180		81-302C
		2.2h
2X/modem/RTC	2.2u1		81-580		81-478A
10/modem/RTC	2.2u1		81-582		81-478A
New 2		2.2u1		81-294		81-478A
1		2.2u1		81-294		81-478A

     The table is actually somewhat inaccurate.  The K10 will run ANY
version of Kaypro CP/M ( except for u1 ), as long as you MOVCPM a 60k
system.

     The 81-478A ROM is the dreaded Universal ROM.

     The 81-184/185/294/295/296/580/582 motherboards are all the SAME
motherboard, and they all support the HD.  The best of these to have is
the 81-184/185, because it also includes the RTC and the modem.  This
motherboard is also known as the Universal Motherboard.

     This is the board that is/was in my K4/84, which is now a K10/84.
No soldering required.  Just cables.  You also need the 81-302 ROM,
and the host board, and a WD1002-HD0 ( NOT the 1001 ).  If you do have
a WD1001, you have to re-assemble the ROM.

     Any more questions?  With Kaypro just up the coast from me, it's
easy to get SOME questions answered.  Unfortunately, they have NO ONE
from the old days left ( that we could find ).
-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Marc Wilson
     ARPA: ...!crash!mwilson@nosc.mil
           ...!crash!pnet01!pro-sol!mwilson@nosc.mil
     UUCP: [ cbosgd | hp-sdd!hplabs | sdcsvax | nosc ]!crash!mwilson
     INET: mwilson@crash.CTS.COM
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

mlinar@eve.usc.edu (Mitch Mlinar) (02/17/90)

In article <19697@ea.ecn.purdue.edu# wieland@ea.ecn.purdue.edu.UUCP (Jeffrey J Wieland) writes:
#between the SASI port and the WD board.  There is a company that 
#advertises in Micro-Cornucopia that sells kits to add the SASI port,
#the small circuit board, and even the WD controller.  This would
#probably cost in the neighborhood of $225.  I can't remember the
#name of the company, but their the same people who sell the KayPlus
#ROM and they also sell QP/M from MicroCode Consulting.  
#
Emerald Microware (501) 641-8088?
#
#A cheaper way to add a hard drive would be to get one from Advanced
#Engineering Concepts.  They even have a special version of the
#Advent TurboROM that supports their disk controller (allows larger
#drives and you can boot off the hard drive).
#--
KayPLUS ROM actually supports slightly more hard disk space than
TurboROM; both support two drives up to the limit of the WD100x
card which is about 64M (each drive).